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Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 煤 礦技改擴(kuò)能工程 (二采區(qū) )瓦斯 綜合治理 可行性分析報(bào)告 第一章 礦井基本情況 第一節(jié) 概況 宏興 煤業(yè)有限公 司所屬的 某煤礦位 于普安縣 樓下鎮(zhèn)禹歇 村境內(nèi), 是生產(chǎn)能力為 6 萬(wàn)噸 年的合法生產(chǎn)礦 井。礦井開采的主要煤層是 C17、 C19、 C24 號(hào)無(wú)煙煤,井田 面積 1.4331 平方公里,核實(shí)可利用儲(chǔ)量 1 257 萬(wàn)噸,可采儲(chǔ)量 901.12 萬(wàn)噸。根 據(jù)煤炭 市場(chǎng)的需求情況和企業(yè)發(fā)展的 需要,于 2005 年委托設(shè)計(jì)單位編制礦井技術(shù)改造開采方案,經(jīng)貴州省 煤炭 局關(guān)于對(duì)普安縣某煤礦開采方案設(shè)計(jì)的批復(fù)(黔煤規(guī)字 2005 136 號(hào))文件批準(zhǔn),同意某煤礦技改為 30 萬(wàn)噸 年,目前正在進(jìn)行新 系統(tǒng)技改擴(kuò)能工程建設(shè)施工。 交通位置: 礦 井由主干公路北到普安縣 城 66Km 接 320 國(guó)道,南至 興義市 52Km 接國(guó)道;南昆鐵路從礦區(qū)西南方向通過(guò),距威舍站 4 0Km 距清水河站 20Km,對(duì)外交通較為方便。 2 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 井田范圍:井田走向長(zhǎng)約 1.1km, 傾向 寬 1.4km,面積 1.4331km , 核實(shí)可利用儲(chǔ)量 1257 萬(wàn)噸 ,可采儲(chǔ)量 901.12 萬(wàn)噸,礦界的 9 個(gè)拐點(diǎn)坐 標(biāo)為: A: X=2809070 Y=35486130; B: X=280 9900 Y=35487030; C: X=2808960 Y=35487540; D: X=280 8110 Y=35487090; E: X=2808170 Y=35486630; F: X=280 8320 Y=35486820; G: X=2808700 Y=35486550; H: X=280 8500 Y=35486210; 1 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF I: X=2808810 Y=35486060; 第二節(jié) 地 質(zhì)構(gòu) 造及煤層特征 礦區(qū) 總體為臺(tái)地 地貌,屬 中高山地 形。地面 植被較發(fā)育 ,灌木、 雜 草叢生,小沖 溝較多,并呈 樹枝狀展布 ,主要沖溝的 走向與地層傾 向 基本一致。礦 區(qū)北部為飛仙關(guān) 組中下部 地層,井田內(nèi) 最高點(diǎn)標(biāo)高海 拔 +1415m,最低點(diǎn)標(biāo)高海拔 +1075m,相 對(duì)高差在 340 m。含煤地層 多被 滑 坡及第四系坡 積物覆蓋,滑 坡一般有兩 級(jí)臺(tái)階,臺(tái)階 內(nèi)地形相對(duì)平 緩,礦區(qū)內(nèi)無(wú)大河流。 一、地層及主要地質(zhì)構(gòu)造 1、地質(zhì)特征 含水 層巖組: 為第四紀(jì)和 下三疊統(tǒng) 飛仙關(guān)組 。其中第四 紀(jì)為混雜 有沖擊、殘積、坡積的重力堆積物,厚度 0 15m。由 滑移巖 石塊體 及 砂 、泥和礫石組 成,主要分布 在溝谷和山 麓地帶,形成 覆蓋面大的孔 隙 含水層,由大 氣降雨直接補(bǔ)給 。飛仙關(guān) 組為薄至中厚層 狀砂巖、粘 土質(zhì)粉砂巖夾少許粘土巖、灰?guī)r ,厚度大于 253m,是位居含煤地層之 上含孔隙水的弱含水層,常形成高山、 陡坡。 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 隔水層巖組:為二疊系上統(tǒng)龍?zhí)督M。龍?zhí)督M以鈣質(zhì)砂巖、粉砂 巖、 粉砂質(zhì)泥巖、硅質(zhì)巖夾煤層、煤線等組成,厚度 大于 263m。由于鈣質(zhì) 砂 巖、粉砂巖等 的孔隙水、裂 隙水常被粉 砂質(zhì)泥巖和煤層 阻隔,因而 龍?zhí)督M視為相對(duì)隔水層。 補(bǔ)給 、徑流、 排泄條件: 主要含水 層為第四 紀(jì),所偏含 孔隙水主 要 由大氣降雨補(bǔ) 給,之后經(jīng)地 表溪流排泄 于區(qū)外,其流 量隨季節(jié)和降 水的變化而變化,一般為 17 升 /秒。 2 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 2、地質(zhì)構(gòu)造 樓下 鎮(zhèn)某煤礦 在地質(zhì)構(gòu)造 單元分區(qū) 上屬揚(yáng)準(zhǔn)地 臺(tái)黔北臺(tái)隆 六盤水 斷 陷普安旋扭構(gòu) 造變形區(qū)的黔西 南渦輪構(gòu) 造,具體位于 該構(gòu)造單元內(nèi) 的牛角向斜之南西揚(yáng)起端了附近。褶皺 及 斷裂構(gòu)造發(fā)育。 ( 1)、褶曲 單斜構(gòu)造是礦區(qū) 的總體構(gòu)造 格架,巖性 主要為二迭系 上統(tǒng)龍?zhí)督M 含煤巖系,巖層產(chǎn)狀:傾向 150 260 ,傾 角 9 13, 但在礦 區(qū) 范圍內(nèi)由于受 南東側(cè)、北西 側(cè)及中產(chǎn)部 三條斷層的影響 ,致使單項(xiàng) 斜構(gòu)造被破壞,局部段發(fā)生褶曲。 ( 2)、斷層構(gòu)造 F1 斷層:出露于 礦區(qū)北西側(cè) 小營(yíng)上一帶 ,地貌上形 成溝塹,地 表 延伸約 1100m,呈北東向展布,傾向南東,傾角 63,斷距 5 0m;兩盤 均為龍?zhí)督M,為正斷層。 F2 斷層:出露于 礦區(qū) 中側(cè)小 營(yíng)上一帶, 地貌上形成 溝塹,地表 延 伸約 1300m,呈北西向展布,傾向南西,傾角 70,斷距 65 85m;兩 盤均為龍?zhí)督M,破壞了礦區(qū)內(nèi)煤層的連續(xù)性和完整性,為正斷層。 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF F3 斷層:出露于礦區(qū)東側(cè),地貌上形成溝塹,地 表延伸約 1300m, 呈北東向展布,傾向北西,傾角 23 45,斷距 50 m;兩盤均為龍 潭組,為逆斷層。 F4 斷層:出露于礦區(qū)南西側(cè),地貌 上形成 溝塹,地表延伸約 1000m, 呈北西向展布,傾向北東,傾角 45 70,斷距 50 m;兩盤 均為龍 潭組,為逆斷層。 由于礦區(qū)范圍內(nèi)斷層構(gòu)造發(fā)育,破壞了 區(qū)內(nèi)煤層 的完整 性,因 此, 3 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) 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Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 礦區(qū)構(gòu)造復(fù)雜。 二、煤層及煤質(zhì) 該礦井煤巖以條 帶狀、粒 狀結(jié)構(gòu)為主, 由鏡質(zhì)組分 及鏡質(zhì)顯微 組 分 ,惰性組分及 惰性顯微組分和 礦物雜質(zhì)組 成,在煤巖 中有機(jī)組分轉(zhuǎn) 化 成的有益組合 凝膠化、絲 炭化產(chǎn)物較 多;有害組分 氧化礦石、 硫化物、鹽類礦物較少。區(qū)內(nèi)煤巖以塊 狀為主,粉(土)狀次之。 在礦區(qū)含煤地層中,可 采煤層有 3 層 ,自上而下依次為: C17、 C19、 C24 號(hào)煤層,煤質(zhì) 均為無(wú)煙煤,各 煤層特征如下: C17 號(hào)煤層:平均厚度 3 .51m ,煤層結(jié)構(gòu)為層狀,較穩(wěn)定,煤層傾 角一般小于 15,多為 9 13 ,一 般在煤層中或中上部夾一層厚 10cm 的炭質(zhì) 頁(yè)巖、 炭質(zhì)泥 巖中含 星點(diǎn)狀 (小量團(tuán)塊狀) 黃鐵礦 。煤層 最大厚度 7 8m,最小厚度 1.85m,屬低灰中硫特低磷無(wú)煙煤。 C19 號(hào) 煤層:為礦區(qū)可采煤層之一,厚度 1.44 2.20m,平均 1. 86m, 產(chǎn) 出較穩(wěn)定,煤 層呈似層狀產(chǎn)出 ,產(chǎn)狀與 頂、底板產(chǎn)狀 基本一致,傾 角小于 15,煤層內(nèi)部結(jié)構(gòu)簡(jiǎn)單,為單層煤、常夾有一層厚約 8cm 的 炭 質(zhì)頁(yè)巖、炭質(zhì) 粘土巖和豆夾狀 夾矸,夾 矸在走向和傾向 上延伸一般 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) 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較穩(wěn)定煤層之一,煤層產(chǎn)狀與圍巖一致 ,傾角 10 左右。在煤層 的中 部 通 常夾 一 層不 穩(wěn) 定和 含 黃鐵 礦 炭質(zhì) 頁(yè) 巖或 炭 質(zhì)泥 巖 , 其厚 度 小于 1.20m。為此, C24 煤層在當(dāng)?shù)赜?C24 上、下煤層之 分。煤層厚度 1.30 4.00m,平均厚度 2.52m。屬低灰富硫特低磷無(wú)煙煤。 C18、 C20、 C25、 C28 煤層:該 4 層煤層在本 礦區(qū)范圍 內(nèi)均屬 不穩(wěn)定 或 4 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 較 穩(wěn)定型,表現(xiàn) 為煤層的厚度小 ,結(jié)構(gòu)復(fù) 雜,并在空間 上變化較大, 在礦區(qū)內(nèi)局部地段可供開采。 三、礦井瓦斯、煤層自燃傾向性、煤塵 爆炸性 瓦斯:根據(jù)貴州創(chuàng)新礦冶開發(fā)有限公司 2005 年 8 月的鑒定報(bào)告, 本礦為高瓦斯礦井,相對(duì)瓦斯涌出量為 15.88m3 t。在開采過(guò)程中要 加 強(qiáng)礦井通風(fēng)和 瓦斯管理,采 取有效的防 治瓦斯措施, 確保不發(fā)生瓦 斯事故。 煤塵:根據(jù)煤炭科學(xué)總院重慶分院對(duì)某煤礦 C17 煤塵爆炸性鑒定報(bào) 告,本礦 C17 煤層無(wú)煤塵爆炸性,礦井應(yīng)對(duì) C19 和 C24 煤層補(bǔ)作鑒定。礦 井 仍要采取綜合 防塵措施,使 井下巷道空 氣中的含塵濃度 降到安全標(biāo) 準(zhǔn)以下,以保證井下作業(yè)環(huán)境符合規(guī)程要求。 煤層自燃:根據(jù)煤炭科學(xué)總院重慶分院對(duì)某煤礦 C17 煤層自燃傾向 等鑒定報(bào)告本礦 C17 煤層自燃傾向等級(jí)為三類。礦井應(yīng)對(duì) C19 和 C24 煤層 自 燃傾向等級(jí)補(bǔ) 作鑒定,在生 產(chǎn)管理中要 注意觀察自燃發(fā) 火征兆, 加 強(qiáng)管理。同時(shí)要加強(qiáng)外因火災(zāi)的防治工作。 煤與瓦斯突出:根據(jù)煤炭科學(xué)總院重慶分院鑒定,礦井 C17 號(hào)煤層 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 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突出煤層。在 開采過(guò)程中加強(qiáng) 管理,采 取有效的 “四 位一體 ”的防 突措施的,確保不發(fā)生事故。 本區(qū)無(wú)沖擊地壓的記錄,地溫?zé)o異常。 第三節(jié) 一、勘查地質(zhì)工作 勘探程度及可靠性 1、 1969 1972 年,貴州省地質(zhì)局區(qū)域地 質(zhì)調(diào)大隊(duì) 對(duì)該區(qū) 進(jìn)行過(guò) 區(qū) 5 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 調(diào)工作,提交了 1: 20 萬(wàn)盤縣幅區(qū)域地 質(zhì)調(diào)查報(bào)告。 2、 1965 1966 年,六盤水地區(qū)煤礦地勘公司 、煤炭科學(xué)院西安研 究 所和中國(guó)科學(xué) 古生物研究所對(duì) 包括本礦 區(qū)在內(nèi)的盤縣相 區(qū)西側(cè)羊場(chǎng) 坡 至土城一帶的 上二迭系含煤地 層進(jìn)行了研 究,將該相 區(qū)煤層進(jìn)行了 分層編號(hào),本次工作所采用的煤層編號(hào)基本與之對(duì)應(yīng)。 3、 1998 年 12 月,貴州地勘局一 六地 質(zhì)大隊(duì)在 該區(qū)開 展過(guò)勘 查 地 質(zhì)工作,提交 了普安縣樓 下鎮(zhèn)煤礦區(qū) 地質(zhì)簡(jiǎn)測(cè)報(bào)告 基本查明了 該區(qū)煤層的賦存特征及構(gòu)造特征,估算 資源儲(chǔ) 量 2683 8.89 萬(wàn)噸 , 本次 核實(shí)的普安縣樓下鎮(zhèn)某煤礦為其中一部 份。 4、 2005 年 3 月,中化地質(zhì)礦山總 局貴州 地質(zhì)勘查 院在貴 州地勘 局 一 六地質(zhì)大隊(duì) 提交的普安 縣樓下鎮(zhèn)煤 礦礦區(qū)地質(zhì)簡(jiǎn)測(cè) 報(bào)告的基 礎(chǔ)上,根據(jù)某 煤礦生 產(chǎn)礦井 資料和 現(xiàn)場(chǎng) 調(diào)查資料 以及礦方提供的資料, 采用 1: 10000 地形圖利用 AutoCAD 放大成 1: 2000 地形圖為底圖,開 展與核實(shí)報(bào)告有關(guān)的地表地質(zhì)工作,并 采用經(jīng)緯儀及手持式 GPS 全球 衛(wèi) 星定位儀對(duì)采 礦巷道地表出口 進(jìn)行準(zhǔn)確定 位,采用經(jīng) 緯儀對(duì)采礦工 程進(jìn)行系統(tǒng)的測(cè)量,完成如下工作: 2 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF (1)、 1: 5000 地形地質(zhì) 圖 1.4331km ; (2)、 1: 2000 地質(zhì)剖面測(cè)量 4828m/3 條; (3)、采礦工程測(cè)量: 3155m;調(diào)查采樣點(diǎn)坐標(biāo)測(cè)量 33 點(diǎn); (4)、煤礦調(diào)查采樣 33 處; 對(duì) 某煤礦的礦 區(qū)范圍內(nèi)各 可采煤層 資源量類別 進(jìn)行了劃 分,并計(jì) 算了保有資源量,主要結(jié)論為: 6 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF (1) 煤礦資源賦存于晚二迭世龍?zhí)督M地層中,緩傾斜煤層,含 全 區(qū)可采煤層 3 層( C17 、 C19、 C24),含局部可采煤層 4 層( C18 、 C2 0、 C25、 C28),其中,全區(qū) 可采 煤層 C17 、 C19、 C24 平均厚度分別為 3.51m、 1.86m、 2.52m。 (2)、礦井水文地質(zhì)條件為簡(jiǎn)單類型。 (3)、礦區(qū)煤質(zhì)牌號(hào)均為無(wú)煙煤。 (4)、核實(shí)截止 2006 年 4 月 1 日,普安 縣樓下鎮(zhèn) 某煤礦 礦區(qū)范 圍 C17、 C19、 C24 煤層保有資源量: 1257 萬(wàn)噸。其中: 控制的內(nèi)蘊(yùn)經(jīng)濟(jì)資源量( 332): 329 萬(wàn)噸 推斷的內(nèi)蘊(yùn)經(jīng)濟(jì)資源量( 333): 872 萬(wàn)噸 預(yù)測(cè)的資源量( 334)?: 56 萬(wàn)噸,并編 寫成資源 儲(chǔ)量核 實(shí)報(bào)告。 二、資源儲(chǔ)量的可靠性 上述資源儲(chǔ)量核實(shí)報(bào)告已于 2006 年 4 月 1 日, 由黔西南州國(guó) 土 資源局主持的 聘請(qǐng)礦產(chǎn)資源儲(chǔ) 量評(píng)估師和 有關(guān)專家組成 的評(píng)審小組 的評(píng)審。 第四節(jié) 礦井開拓與開采 、 、 、 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) 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Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 開拓 方式:礦 井采用斜井 開拓,分 層布。共 設(shè)置三個(gè)井 口:主斜 井 、副斜井、回 風(fēng)斜井。主斜 井作為運(yùn)煤 的皮帶斜井; 副斜井用為提 升 矸石、運(yùn)送材 料、進(jìn)風(fēng)等; 回風(fēng)斜井用 為礦井總回風(fēng)井 。各井口坐 標(biāo): 主斜井: X: 2809007 , Y: 35486709 , Z: +1249,傾角: 16 副斜井: X: 2808999 , Y: 35486748 , Z: +1250,傾角: 20 回風(fēng)斜井: X: 2809708 , Y: 35487083 , Z: +1372 傾角: 20 7 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 礦井 共劃分為兩個(gè) 采區(qū), F 2 斷層以南為一采 區(qū),以北為二采 區(qū)。 目前一采區(qū)還在開采,二采 區(qū)正在 進(jìn)行 礦井技改擴(kuò)能新系統(tǒng)建設(shè)施工 。 主斜往下掘進(jìn)至 C17 號(hào)煤層后,繼續(xù)往下掘進(jìn) 60m 作井底煤倉(cāng),主 井 與煤倉(cāng)上口用 聯(lián)絡(luò)巷聯(lián)接, 從井底煤倉(cāng) 往采區(qū)皮帶上山 掘進(jìn)皮帶運(yùn) 19 C19 號(hào) 煤層往 東掘進(jìn) 運(yùn)輸大 巷至采 區(qū)上山 下部車場(chǎng) ,然后按設(shè)計(jì)沿煤層 掘 進(jìn)采區(qū)皮帶上 山、采區(qū)軌道 運(yùn)輸上山、 采區(qū)回風(fēng)上山 至采區(qū)上部, 先在采區(qū)上部布置回采工作面進(jìn)行回采 。 采煤 方法與頂板 管理:采 煤方法為 走向長(zhǎng)壁 后退式采煤 ,爆破落 煤,全部垮落法管理頂板。 第五節(jié) 目前礦井瓦斯治理情況 礦井 通風(fēng)方式 :采用分區(qū) 式抽出式 ,礦井目 前生產(chǎn)的一 采區(qū)設(shè)計(jì) 風(fēng)量為 720 m /min, 實(shí)際 總風(fēng) 量約為 1100 m /min ;二采設(shè)計(jì)風(fēng)量為 2880 m /min。 目前 礦 井生產(chǎn)的 一采區(qū), 由于產(chǎn)量 不大,風(fēng) 量充足,在 礦井瓦斯 治 理方面,主要 是采用礦井通風(fēng) 的方法稀釋 礦井瓦斯并排 出地面;其 輸平巷;副斜井穿過(guò) C 號(hào)煤層后掘至 C 號(hào) 煤層,分別在 C 號(hào)煤層、 3 3 3 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 次 是礦井安裝瓦 斯監(jiān)測(cè)監(jiān)控系統(tǒng) ,加強(qiáng)對(duì) 礦井瓦斯的監(jiān)測(cè) 監(jiān)控,實(shí)行 礦 井風(fēng)、電閉鎖 ,瓦斯、電閉 鎖;在礦井 防治煤與瓦斯突 出方面,嚴(yán) 格 執(zhí)行 “四位一 體 ”的防突措 施,但采用 的防突工程措施 主要是采用 鉆 孔自然排放瓦 斯;在安全防 護(hù)方面主要 是對(duì)下井人員配 戴隔離式自 救 器;在礦井瓦 斯管理方面, 嚴(yán)格執(zhí)行礦 井瓦斯管理的各 種制度、措 施,加強(qiáng)礦井的瓦斯 檢查管理,確保礦 井的安全生產(chǎn)。 8 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 第二章 瓦斯治理的必要性 根據(jù) 貴州創(chuàng)新 礦冶有限 公司 2005 年 對(duì)礦井生產(chǎn) 采區(qū)瓦 斯鑒定報(bào) 告,相對(duì)瓦斯涌出量為 15.88m /t,鑒定為高瓦斯礦井;根據(jù) 煤炭科 學(xué) 總院重慶分院鑒定,礦井 C17 號(hào)煤 層為煤 與瓦斯突出煤層 。 礦井瓦斯是極易引發(fā)煤礦重、特大災(zāi) 害性事故的 重大危 險(xiǎn)源之 一, 為 確保礦井的安 全生產(chǎn),必須 采用各種有 效措施,對(duì)礦 井瓦斯進(jìn)行綜 合 治理,是有效 預(yù)防礦井瓦斯重 、特災(zāi)害 事故發(fā)生的重要 手 段。開采 有 煤與瓦斯突出 危險(xiǎn)煤層的礦井 ,建立防 突專業(yè)隊(duì)伍, 配備適量的技 術(shù) 人員和施工隊(duì) 伍,保持隊(duì)伍 的穩(wěn)定性, 負(fù)責(zé)掌握突出 動(dòng)態(tài)和規(guī)律, 制 定和實(shí)施防突 措施,填寫突 出卡片,為 礦井的防突工作 積累經(jīng)驗(yàn); 采 用鉆機(jī)向煤層 打一定數(shù)量的鉆 孔,對(duì)煤 層的瓦斯進(jìn)行抽 放或排放, 可以降低煤層中的瓦斯壓力和瓦斯含量 ,并由此引起 煤層的 收縮變 形, 使 煤層的地應(yīng)力 下降、透氣性 增大,地應(yīng) 力和瓦斯壓力梯 度減小,煤 體 的強(qiáng)度增大, 使煤層突出的 主動(dòng)力減弱 ,抵抗突出的 阻力增強(qiáng),從 而 起到消除或削 弱煤與瓦斯突出 危險(xiǎn)性的效 果;煤礦井 下安裝使用瓦 斯 監(jiān)測(cè)監(jiān)控系統(tǒng) ,對(duì)井下瓦斯 實(shí)現(xiàn)實(shí)時(shí)監(jiān) 測(cè)監(jiān)控,能隨 時(shí)掌握井下瓦 3 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) 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Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 斯 變化情況,并 且實(shí)現(xiàn)瓦斯超限 自動(dòng)斷電 功能,能有效 地預(yù)防礦井重 大 瓦斯事故的發(fā) 生,實(shí)現(xiàn)礦井 的安全生產(chǎn) ;開采有煤與 瓦斯突出的礦 井 ,采取在井下 建立臨時(shí)避難硐 室與壓風(fēng) 自救系統(tǒng)、下 井人員配帶隔 離 式自救器等安 全防護(hù)措施, 當(dāng)井下一旦 發(fā)生瓦斯、火 災(zāi)等礦井災(zāi)害 事 故時(shí),災(zāi)區(qū)人 員戴上隔離式自 救器后, 可以順利地撤 出災(zāi)區(qū),當(dāng)一 時(shí) 無(wú) 法撤出災(zāi)區(qū) 時(shí),可以撤到 安裝有壓風(fēng) 自救系統(tǒng)的避難 硐室等待救 援 ,能有效地保 障礦工的生命安 全,最大 限度地減少災(zāi)害 事故所造成 9 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 的 損失。開采有 煤與瓦斯突出危 險(xiǎn)的煤層 ,采取措施對(duì) 礦井瓦斯實(shí)行 綜合治理,是保障礦井安全生產(chǎn)的需要 ,也是國(guó)家法律法規(guī)的要求。 第三章 瓦斯綜合治理方案 二采區(qū)技改擴(kuò)能工程俊工投產(chǎn)后,礦井的生產(chǎn)能力為 30 萬(wàn)噸 /年, 礦 井的瓦斯絕對(duì) 涌出量會(huì)較大;同 時(shí)礦井在開采有煤 與瓦斯突出煤 層 的 突出危險(xiǎn)區(qū)時(shí) ,采取防突工程時(shí) 能更及時(shí)、更有效 地消除煤與瓦 斯 突 出危險(xiǎn),使礦 井的正常采、掘作 業(yè)保持正常,必須 采取各種措施 對(duì) 礦井瓦斯進(jìn)行綜合治理,確保礦井的安 全生產(chǎn)。 根據(jù) 國(guó)內(nèi)開采高瓦 斯的礦井及開 采有煤與 瓦斯突出危險(xiǎn) 的礦井的 對(duì) 礦井瓦斯綜合 治理的成功經(jīng)驗(yàn), 以及國(guó)家對(duì)開采高 瓦斯礦井、開 采 有 煤與瓦斯突出 危險(xiǎn)礦井的技術(shù)、 法規(guī)要求,在礦井 開采時(shí),議采 用 如 下的瓦斯綜合 治理方案:建立專 門的防治煤與瓦斯 突出防突隊(duì)伍 , 加 強(qiáng)對(duì)礦井區(qū)域 性煤與瓦斯突出危 險(xiǎn)性的預(yù)測(cè)預(yù)報(bào) ,對(duì)采掘工作面 的 瓦 斯采取鉆孔預(yù) 排放與瓦斯預(yù)抽放 相結(jié)合的綜合治理 措施;在井筒 施 工 或石門施工揭 露煤層前,采取預(yù) 打超前鉆孔探煤 ,遠(yuǎn)距離松動(dòng)爆 破 的 揭煤措施;安 裝井下瓦斯監(jiān)測(cè)監(jiān) 控系統(tǒng),加強(qiáng)對(duì)井 下瓦斯的監(jiān)測(cè) 監(jiān) Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) 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Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 控 ;在井下建立 臨時(shí)避難硐室與壓 風(fēng)自救系統(tǒng),下井 人員配帶隔離 式 自救器等安全防護(hù)措施。 一、 建立瓦斯專業(yè)防突隊(duì)伍 1、瓦斯專業(yè)防突隊(duì)伍的職責(zé)范圍: ( 1) 對(duì)礦井煤與瓦斯突出危險(xiǎn)進(jìn)行區(qū)域性的 預(yù)測(cè)預(yù)報(bào) ,負(fù) 責(zé)掌握 突出動(dòng)態(tài)和規(guī)律,制定和實(shí)施防突措施 ,填寫突出卡片,積累資料; 10 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF ( 2)負(fù)責(zé)井下瓦斯鉆孔排放和鉆孔抽放的鉆孔施工和其它鉆探施 工; ( 3)負(fù)責(zé)瓦斯抽放管路及抽放系統(tǒng)各種設(shè)施的安裝、維護(hù)、調(diào)整、 更換等; ( 4)負(fù)責(zé)對(duì)礦井瓦斯抽放系統(tǒng)、鉆場(chǎng)、管線、主要設(shè)備、設(shè)施的 日 常檢查和抽放 系統(tǒng)的測(cè)試、調(diào)整 、試驗(yàn),數(shù)據(jù)、 資料的記錄和整 理 等安全技術(shù)管理工作。 ( 5)負(fù)責(zé)對(duì)瓦斯排放孔、瓦斯抽放孔、鉆場(chǎng)、瓦斯抽放管路鋪設(shè) 的施工設(shè)計(jì),編制安全措施,并貫徹執(zhí) 行。 2、勞動(dòng)定員: 根據(jù)崗位設(shè)置,成立瓦斯防突隊(duì),由礦通風(fēng)部管理,定員為 20 人, 詳見下表: 類 別 備 注 二、采掘工作面瓦斯抽放防突 本礦井技改擴(kuò)能設(shè)計(jì)年產(chǎn)量為 30 萬(wàn)噸,屬高突礦 井,根據(jù)國(guó)家 煤 礦 安全監(jiān)察局要 求,必須進(jìn)行 瓦斯抽放。 本礦瓦斯抽放 的專項(xiàng)設(shè)計(jì)已 出 勤 人 數(shù) 替 補(bǔ) 在 籍 夜班 日班 中班 小計(jì) 人數(shù) 人數(shù) 隊(duì)長(zhǎng) 1 1 技術(shù)人員 1 1 鉆探工 3 3 3 9 9 瓦斯觀測(cè)工 1 1 1 3 3 放水、維修工 2 2 泵 站值班人員 1 1 1 3 3 電氣檢修工 1 1 合計(jì) 20 20 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm 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Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 放 ,礦井應(yīng)按照 煤炭科學(xué)研究總 院重慶分院 的瓦斯抽放專 項(xiàng)設(shè)計(jì)和礦 井防治煤與瓦斯突出的專 項(xiàng)設(shè)計(jì)要求在二采區(qū)安裝進(jìn)行瓦斯抽放。 1、瓦斯抽放方法 ( 1)本礦在地面建瓦斯抽放系統(tǒng),采取回采工作面預(yù)抽、掘進(jìn)巷 道 抽放、采空區(qū) 抽放相結(jié)合的辦 法。抽放 管路安裝在采面 回風(fēng)順槽、 機(jī) 巷和掘進(jìn)巷道 內(nèi),由回風(fēng)上 山,風(fēng)井引 至地面瓦斯抽放 站,抽放的 瓦斯排放到大氣中。 ( 2)鉆場(chǎng)和 鉆孔布置:在采 面機(jī)巷、 回風(fēng)巷和掘 進(jìn)巷內(nèi)每隔 15 米 設(shè)一鉆場(chǎng),在 每個(gè)鉆場(chǎng)內(nèi)向煤 層中打一 個(gè)孔,鉆孔方 向斜向采面布 置,鉆孔與巷道的夾角為 60 度,鉆孔深度 70 米 。在風(fēng)巷斜向下打鉆 孔,在機(jī) 巷斜向上打鉆孔。采面斜長(zhǎng) 12 0 米, 鉆孔深 度與夾角及鉆孔 距 離按上述要求 布置,基本可 以達(dá)到抽放 瓦斯的效果。 若采面斜長(zhǎng)增 大時(shí)必須增大鉆孔深度。 ( 3)封孔:封孔時(shí)先將一根長(zhǎng) 9 米的無(wú)縫鋼管放入孔中,孔口外 留 0.2 0.3 米以便 扎接膠 管,然 后將膨 脹水泥利用壓風(fēng)注入孔中,封 孔長(zhǎng)度 5 8 米。封孔后在孔外一段無(wú)縫鋼管上扎接膠管,連接壓力表、 3 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm 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Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 閥門、放水器和流量計(jì),最后接在抽放 瓦斯管上。 2、瓦斯抽放系統(tǒng)的計(jì)算選型 ( 1)瓦斯抽放管路的選擇 瓦斯抽放濃度、抽 放量的確定 瓦斯抽放濃度 C 按 35考慮。 由于瓦斯抽放站 主要是抽放 開采煤層瓦 斯,其抽放 純量為回采 工 作面瓦斯涌出量,煤層相對(duì)瓦斯瓦斯涌 出量按 20m t 計(jì)算,則絕對(duì) 12 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF 瓦斯 涌出量為 20900 2460 12.5m min。煤層瓦斯涌出 系 3 數(shù),一般取 0.8,則瓦斯涌出量為 0.812.5 10 m min。 本礦瓦斯抽放率按 30計(jì)算,瓦斯抽放濃度 C 按 35考慮。 瓦斯抽放的混合量: Q 混 Q 純 C 103 0 35 8.6 m min 。 瓦斯抽放管的管徑 d=0.1457 QV 式中: d瓦斯抽放管徑, m Q瓦斯抽放管內(nèi)流量, m min,取 Q Q 混 8.6 m min V瓦斯抽放管內(nèi)流速, ms,一般取 5 15 ms。 瓦斯抽放管的管徑為 d=0.1457 8.610 0.135 m 取 d=200mm 故瓦斯抽放管選型為: DN200 的無(wú)縫鋼管,長(zhǎng)度 500m。 瓦斯抽放管路阻力計(jì)算 hf=9.8 LQ Kd p1n 1 p2n 2 p2 式中: hf管路阻力 Pa 混合瓦斯對(duì)空氣的相對(duì)密度 3 3 12 3 3 12 2 5 3 3 3 3 3 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF L管路長(zhǎng)度, m,取 L 500m Q混合瓦斯流量, m h Q 混 8.6 m min 516 m h K管徑系數(shù),取 K 0.6; d管路內(nèi)徑, cm p1瓦斯密度,取 0.715kgm p2空氣密度,取 1.293 kgm n1混合瓦斯中的瓦斯?jié)舛龋?40考 慮 13 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaahF n2混合瓦斯中的空氣濃度。 則混合瓦斯 對(duì)空氣的相對(duì)密度 p1n 1 p2n 2 p2 0.7150.4 1.2930.6 1.2 93 0.821 瓦斯抽放管路阻力 hf=9.8 LQ Kd hf=9.80.8215005162 0.6205 558 Pa 局部阻力 h 局 =hf15 55815 84 Pa 瓦斯泵流量及壓力 瓦斯泵流量: Qp KQ 純 X 1.2 103 0 0.35 0.8 12. 85 m min 瓦斯泵壓力: Hp KB hf h 局 h 孔 1.2 5 58 84 20 000 20642 20.642kPa。 X瓦斯泵入口處瓦斯?jié)舛?,煤礦安全 規(guī)程規(guī)定 X0.3 瓦斯泵的機(jī)械效率, =0.8 K抽放備用系數(shù),一般取 K=1.2 2 5 3 3 3 Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphForm aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLine sToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaahF Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaphFormat.LineSpacingLinesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPoction.ParagraphForm Selection.ParagraphFormaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.ParagraphFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingLinesToPoints(2Selection.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFormat.LineSpacingL inesToPointselection.ParagraphFormat.LineSpacingLinesToPoints(2)Selection.Paragra phFormat.LineSpacingLinesToPoction.ParagraphFormat.LineSpacingL inesToPoints(2) Selection.ParagraphFaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

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