《浙江省S縣給水工程初步設(shè)計(jì)》16000字（論文）

浙江省S縣給水工程初步設(shè)計(jì)摘要本設(shè)計(jì)是關(guān)于金華市S縣城區(qū)給水工程初步設(shè)計(jì)的計(jì)算和說明。設(shè)計(jì)的主要內(nèi)容包括計(jì)算城市用水量；計(jì)算給水廠的設(shè)計(jì)規(guī)模、取水構(gòu)筑物設(shè)計(jì)、給水管網(wǎng)的設(shè)計(jì)和工程投資估算等。根據(jù)S縣的地形圖，將水源設(shè)置在S江，取水口設(shè)置在上游順直河段，這樣河床穩(wěn)定，不易發(fā)生施工事故。查閱資料得出S江的最高水位是55m，頻率是2%，最低水位50m，常年水位是52m。設(shè)計(jì)采用河床式取水構(gòu)筑物，使用水泵直接吸水，取水頭部采用喇叭管垂直向下式。管網(wǎng)水量采用最高時(shí)水量：Qh為2055.28L/s本設(shè)計(jì)采用加壓式的給水管道系統(tǒng)，輸水管道系統(tǒng)采用管道的形式。本設(shè)計(jì)考慮技術(shù)與經(jīng)濟(jì)因素，因此在管網(wǎng)布置方面，采用環(huán)狀管網(wǎng)。本設(shè)計(jì)的給水廠設(shè)計(jì)規(guī)模是136591m3/d。工程設(shè)計(jì)流程如下：取水水源→取水構(gòu)筑物（一級泵站）→絮凝池（網(wǎng)格）→沉淀池（斜管）→濾池（V型）→清水池→二級泵站→管網(wǎng)系統(tǒng)。本設(shè)計(jì)的混凝劑采用硫酸鋁，消毒劑采用液氯。本設(shè)計(jì)的絮凝池采用網(wǎng)格絮凝池，絮凝效果好、水頭損失小、絮凝的時(shí)間相較來說比較短。沉淀池采用斜管沉淀池。它的優(yōu)點(diǎn)是沉淀時(shí)間較短、性能較好、占地面積小。濾池采用V型濾池。工程估算總投資3500萬元，工程建設(shè)期為1年。關(guān)鍵詞：泵站；沉淀池；濾池；清水池；水頭損失目錄TOC\o"1-2"\h\u4763引言 92346第一章設(shè)計(jì)要求及資料 10306401.1設(shè)計(jì)任務(wù)及要求 1042451.2設(shè)計(jì)資料及依據(jù) 1010339第二章總體設(shè)計(jì) 11306402.1給水處理工藝方案的比較選擇 1119703第三章給水管網(wǎng)設(shè)計(jì) 14306403.1給水管網(wǎng)計(jì)算 1442453.2給水管網(wǎng)的設(shè)計(jì) 1549693.3設(shè)計(jì)用水量 1562243.4管網(wǎng)平差 15162933.5管網(wǎng)校核 2219704第四章取水構(gòu)筑物設(shè)計(jì) 3743814.1初步設(shè)計(jì) 39276764.2取水頭部設(shè)計(jì) 41187484.3吸水管和壓水管設(shè)計(jì) 4377304.4泵房設(shè)計(jì) 4727326第五章凈水構(gòu)筑物設(shè)計(jì) 3943815.1加藥間設(shè)計(jì) 39276765.2絮凝池設(shè)計(jì) 41187485.3沉淀池設(shè)計(jì) 4377305.4濾池設(shè)計(jì) 47302715.5濾池管渠設(shè)計(jì) 51218875.6清水池的設(shè)計(jì) 53319895.7加氯間設(shè)計(jì) 551181第六章二級泵站 5619066第七章水廠平面高程布置 5775737.1平面布置概述 58175687.2水廠的高程布置 587937.3各構(gòu)筑物的高程計(jì)算 5811990第八章工程投資估算 6012372結(jié)論 6112072參考文獻(xiàn) 63引言本設(shè)計(jì)課題為金華市S縣城區(qū)給水工程初步設(shè)計(jì)。S縣，隸屬于浙江省金華市，位于浙江省中部。S縣的東西寬為50km左右，南北長為59km左右，城市面積為1577.2km2左右。地形屬于浙中丘陵盆地和浙中南山區(qū)交叉地帶，地勢南高北低，縣境中部隆起，西南高山連綿，東北丘陵起伏，山脈屬仙霞嶺分支。雖然S縣屬于亞熱帶季風(fēng)氣候，總體來說雨量充沛，但是也時(shí)常用水緊張，而且飲用水也遭到了來自工業(yè)區(qū)的不同程度的污染。河流邊的工業(yè)區(qū)產(chǎn)生了大量的污染物，對水質(zhì)造成較大污染。所以為了緩解由于水質(zhì)型缺水導(dǎo)致的用水緊張情況，也是滿足緩解工業(yè)，農(nóng)業(yè)的用水量，因此需要在S縣要建一座新的給水廠，這座新的給水廠的處理規(guī)模為136591m3/d。凈水工藝采用常規(guī)處理工藝。最終采用的工藝流程如下：取水水源→取水構(gòu)筑物（一級泵站）→絮凝池（網(wǎng)格）→沉淀池（斜管）→濾池（V型）→清水池→二級泵站→管網(wǎng)系統(tǒng)。同時(shí)，給水管網(wǎng)的規(guī)劃和設(shè)計(jì)也要考慮S縣的經(jīng)濟(jì)情況，此外也要考慮到安全性問題。綜合來設(shè)計(jì)，采用環(huán)狀管網(wǎng)，不僅可以減少水錘，降低發(fā)生危害的可能性，也比較符合經(jīng)濟(jì)定位。此給水工程的初步設(shè)計(jì)，符合目前S縣的現(xiàn)狀，使人們用水更加安全可靠，改善目前的用水狀況。設(shè)計(jì)要求及資料1.1設(shè)計(jì)任務(wù)及要求1.1.1設(shè)計(jì)題目金華市S縣給水工程初步設(shè)計(jì)1.1.2設(shè)計(jì)進(jìn)出水水質(zhì)水源水質(zhì)資料：河水水質(zhì)達(dá)到《地表水環(huán)境質(zhì)量標(biāo)準(zhǔn)》(GB3838-2002)Ⅱ類水體，濁度15NTU左右，色度10度左右，耗氧量小于2.0mg/L，pH值7.1，總硬度107mg/L（以CaCO3計(jì)）左右，無異臭異味。設(shè)計(jì)出水水質(zhì)：滿足《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》（GB5749-2006）要求。1.2設(shè)計(jì)資料及依據(jù)1.2.1人口及用水情況全縣戶籍人口36萬，城區(qū)人口30萬人，給水普及率100%。1.2.2自然條件常年主導(dǎo)風(fēng)向?yàn)闁|北風(fēng)。年平均降水量1474.49mm。地形屬浙中丘陵盆地和浙中南山區(qū)交叉地帶，工程地質(zhì)良好，適于工程建設(shè)。縣境東西寬50km，南北長59km，境域面積1577.2km2。1.2.3設(shè)計(jì)依據(jù)1.《水質(zhì)工程學(xué)》教材上、下冊；2.《給水排水設(shè)計(jì)手冊》第一、五、十、十一冊；3.《給水排水工程快速設(shè)計(jì)手冊》2、5冊；4.《水泵及水泵站》姜乃昌主編，中國建筑工業(yè)出版社；5.《給水排水工程專業(yè)畢業(yè)設(shè)計(jì)指南》張智等編著，中國水利水電出版設(shè)；6.《水處理工程設(shè)計(jì)計(jì)算》韓洪軍等編著，中國建筑工業(yè)出版社；7.《給水排水制圖標(biāo)準(zhǔn)》（GB/T50106-2001）；8.《給水工程》嚴(yán)煦世，范瑾初等編著，中國建筑工業(yè)出版社；總體設(shè)計(jì)2.1給水處理工藝方案2.1.1凈水工藝的要求給水處理的目的，是為了除去水中的雜質(zhì)和污染物，例如：病毒和細(xì)菌、微生物以及其他一些有毒物質(zhì)等，使處理后的水質(zhì)能被人類引用或者使用于生產(chǎn)。同時(shí)，處理后的水質(zhì)必須符合國家的要求，必須處理出高質(zhì)量的水質(zhì)。2.1.2取水工程方案取水工程的的線路是在已經(jīng)選定水源地的前提下，把水取出，然后經(jīng)過給水廠的一系列處理后送到用戶手中。本設(shè)計(jì)的水源為S江，取水口位于上游，河道順暢平直，河床與河岸也較為穩(wěn)定。經(jīng)查閱得知最高水位10.0m，頻率2%，最低水位4.5m，常水位7.5m。本設(shè)計(jì)采用采用河床式取水構(gòu)筑物，使用水泵直接吸水，取水口頭部采用喇叭管，垂直向下。進(jìn)水管的數(shù)量必須是兩條以上；設(shè)計(jì)流速要大于等于0.6m/s，當(dāng)然也不能過度大。虹吸高度要小于等于4m-6m，進(jìn)水管的沖洗方式可以采用順沖和反沖兩種。2.1.3混凝工藝方案目前我國已經(jīng)具備多種形式的絮凝池，包括折板絮凝池、隔板絮凝池、以及網(wǎng)格絮凝池等。折板絮凝池主要優(yōu)點(diǎn)是容積小，主要缺點(diǎn)是造價(jià)高。隔板絮凝池，構(gòu)造比較簡單，在施工階段以及后期運(yùn)營管理可能稍微方便一點(diǎn)。但是他的容積過大。而網(wǎng)格絮凝池就結(jié)合了折板和隔板的優(yōu)點(diǎn)，缺點(diǎn)只是池底容易積泥。所以綜合來比較，本設(shè)計(jì)選擇網(wǎng)格絮凝池作為混凝工藝的構(gòu)筑物。2.1.4沉淀工藝方案目前我國的沉淀池形式也基本齊全。有豎流沉淀池、平流沉淀池、斜板和輻流沉淀池等。平流式沉淀池主要優(yōu)點(diǎn)是施工管理簡單，而且造價(jià)較低。它的缺點(diǎn)是排泥難度大，需要的占地面積大，平流沉淀池適用于大中型的水廠。豎流式池的占地面積相較來說小一點(diǎn)，優(yōu)點(diǎn)在于排泥難度低。缺點(diǎn)是因?yàn)樗鞘秦Q式的，所以水流量會較小一點(diǎn)，沉淀效果不會太好，適用于小水廠。輻流式沉淀池額外多了一個(gè)機(jī)械持泥裝置，排泥效果也好一些。缺點(diǎn)是投資造價(jià)高，維護(hù)管理費(fèi)勁。適用于大中型水廠。斜板式沉淀池，沉淀效果好，占地面積小。缺點(diǎn)是能耗高，排泥較困難。一般用于大中型水廠的情況多一點(diǎn)。綜合考慮，本設(shè)計(jì)使用斜管沉淀池。2.1.5消毒工藝方案消毒工藝有液氯消毒和氯胺消毒兩種。液氯消毒的主要優(yōu)點(diǎn)是余氯連續(xù)消毒，費(fèi)用較少，操作上會比較好操作一點(diǎn)，缺點(diǎn)是原水的有機(jī)物含量高，原水中含有苯酚會生成有機(jī)氯化物。苯酚氣味對人有害，氯氣有毒。氯胺的優(yōu)點(diǎn)是能減少三鹵甲烷的產(chǎn)生；抑制細(xì)菌的形成。缺點(diǎn)是消毒速度比液氯慢，還需要額外增加加氯設(shè)備，啟動和管理的問題操作難。適合原水有機(jī)物多，排水管道長的情況。本設(shè)計(jì)采用液體氯消毒工藝。2.1.6管網(wǎng)方案管網(wǎng)分為樹狀網(wǎng)和環(huán)狀網(wǎng)。樹狀網(wǎng)絡(luò)一般適合小城市，如果管道線路的管道部分受損，在該管道線路段以后所有管道的線路都將被切斷，從而降低供水的穩(wěn)定性。在樹狀網(wǎng)的盡頭，水流變得比較慢，水的質(zhì)量會變劣。環(huán)網(wǎng)管區(qū)如果受損，附近的閥門關(guān)閉后還可以重新檢查，其他管道也可以向用戶提供水，從而提高用水的可信度。環(huán)狀網(wǎng)安全性較高。綜合考慮，本設(shè)計(jì)采用環(huán)狀管網(wǎng)。圖2-1管網(wǎng)布置給水管網(wǎng)設(shè)計(jì)3.1給水管網(wǎng)計(jì)算3.1.1總用水量概括城市總用水量包括：居民綜合生活用水量、工業(yè)生產(chǎn)用水量、澆灑道路用水量和綠化用水量、管網(wǎng)漏損水量、未預(yù)見用水量、和消防用水量。給水廠出水水質(zhì)需要滿足《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》（GB5749-2006）要求。3.1.2最高日綜合生活用水量（3-1）其中：q表示居民綜合生活用水定額，N代表居民人數(shù)，f代表自來水普及率。根據(jù)《室外給水設(shè)計(jì)規(guī)范》（GB50013-2006），金華市S縣城區(qū)的供水標(biāo)準(zhǔn)為220L/人?天；N表示人口數(shù)，為30w人；f表示自來水普及率，查閱S縣自來水普及相關(guān)資料取為95%；3.1.3工業(yè)生產(chǎn)用水量S縣主要的工業(yè)區(qū)是百花山工業(yè)區(qū)，走訪工業(yè)區(qū)調(diào)研得出全區(qū)日用水量為20000m3/d左右，所以Q2=20000m3/d（3-2）3.1.4澆灑道路用水量和綠化用水量根據(jù)《室外給水設(shè)計(jì)規(guī)范》（GB50013-2006）的規(guī)定，澆灑道路和綠化用水可按最高日綜合生活用水量和工業(yè)生產(chǎn)用水量之和的30%～50%，這里取35%。所以=24810（3-3）3.1.5管網(wǎng)漏失水量管網(wǎng)漏失水量應(yīng)該按照3.1.1～3.1.4幾項(xiàng)之和的10%～12%計(jì)算，這里取10%。所以（3-4）3.1.6未預(yù)見用水量未預(yù)見用水量應(yīng)根據(jù)難以預(yù)測的因素綜合來確定，可以采用3.1.1～3.1.5之和的8%～12%確定，這里取10%。所以（3-5）3.1.7給水廠的設(shè)計(jì)水量最高日用水量為：（3-6）本設(shè)計(jì)水量約為136591m3/d。3.1.8消防用水量根據(jù)《建筑設(shè)計(jì)防火規(guī)范》(GB50016)及《高層民用建筑設(shè)計(jì)防火規(guī)范》(GB50045)等設(shè)計(jì)防火規(guī)范，S縣的城市消防用水量為55L/S，次數(shù)為2次。最高日用水量不納入消防用水量，因?yàn)榛馂?zāi)的發(fā)生是偶然的，所以滅火的消防用水也會比較少。3.1.9最高時(shí)用水量的計(jì)算根據(jù)《室外給水設(shè)計(jì)規(guī)范》(GB50013-2006)的規(guī)定，城鎮(zhèn)供水的時(shí)變化系數(shù)、日變化系數(shù)應(yīng)根據(jù)城鎮(zhèn)性質(zhì)和規(guī)模、國民經(jīng)濟(jì)和社會發(fā)展、供水系統(tǒng)布局，結(jié)合現(xiàn)狀供水曲線和日用水變化分析確定。在缺乏實(shí)際用水資料情況下，最高日城市綜合用水的時(shí)變化系數(shù)宜采用1.2～1.6；日變化系數(shù)宜采用1.1～1.5。這里采取1.3。（3-7）3.2給水管網(wǎng)的設(shè)計(jì)3.2.1給水工程的確定給水管道的輸水方式有重力式輸水，加壓式輸水或是結(jié)合并用。這里采用加壓式輸水方式，采用管道。3.3設(shè)計(jì)用水量3.3.1設(shè)計(jì)用水量的計(jì)算管網(wǎng)設(shè)計(jì)用水量采用最高日最高時(shí)用水量：Qh=2055.28L/s （3-8）3.4管網(wǎng)平差3.4.1平差依據(jù)和結(jié)果表3-1平差計(jì)算依據(jù)和結(jié)果平差計(jì)算依據(jù)和結(jié)果平差類型反算水源壓力2、計(jì)算公式海曾威廉公式V=0.44*C*(Re/C)^0.075*(g*D*I)^0.5Re=V*D/ν計(jì)算溫度：13℃ν=0.0000013、局部損失系數(shù)：1.204、水源點(diǎn)水泵參數(shù):無參數(shù)5、管網(wǎng)平差結(jié)果特征參數(shù)水源點(diǎn)編號節(jié)點(diǎn)流量(L/s)節(jié)點(diǎn)壓力(m)JD1-2055.280109.726最大管徑(mm):1600.00最小管徑(mm):200.00最大流速(m/s):1.150最小流速(m/s):0.035水壓最低點(diǎn)JD26壓力(m):68.76自由水頭最低點(diǎn)JD26自由水頭(m):28.003.4.2平差計(jì)算節(jié)點(diǎn)參數(shù)表3-2平差計(jì)算節(jié)點(diǎn)參數(shù)平差計(jì)算節(jié)點(diǎn)參數(shù)節(jié)點(diǎn)編號流量(L/s)地面標(biāo)高(m)節(jié)點(diǎn)水壓(m)自由水頭(m)JD1-2055.28073.510109.72676.216JD22.93573.930109.64975.719JD311.36771.590109.54177.951JD46.81774.830109.30074.470JD5243.04175.230108.65973.429JD614.92876.490107.48170.991JD716.79778.210106.07067.860JD825.14474.270104.73470.464JD916.71266.160102.67766.517JD1016.78866.860100.76563.905JD1125.22067.29098.99261.702JD1216.76369.54096.89057.350JD1316.45867.63094.99957.369JD1416.45869.68093.36553.685JD1525.06870.32091.85751.537JD1616.64471.85089.70647.856JD1716.71270.21087.89247.682JD1819.28869.53086.36546.835JD198.44968.22085.57447.354JD2014.32269.42083.95944.539JD2116.50970.65080.73340.083JD2216.54371.58078.61037.030JD2316.80572.36075.80033.440JD2413.98071.98072.36630.386JD2513.95571.25069.56228.312JD2616.80570.76068.76028.000JD2716.71269.68069.22529.545JD2816.69568.20073.45735.257JD2922.17669.72077.42637.706JD3016.47570.86076.14535.285JD3116.83071.69076.28834.598JD3216.74672.68079.57336.893JD3317.11371.59082.94541.355JD3416.85672.87078.72335.853JD3514.07371.16078.30837.148JD3610.14672.67078.63435.964JD3710.13470.63079.92839.298JD3812.24271.48079.79438.314JD3916.76370.26080.20139.941JD4012.42269.11081.64742.537JD4111.69370.83083.14442.314JD4212.87571.46083.67742.217JD4320.93572.65086.26443.614JD4416.83974.36086.52942.169JD4516.84775.53088.30542.775JD4610.99576.28092.74146.461JD4710.91974.16093.59349.433JD4816.58571.85097.46655.616JD4916.65370.260100.25759.997JD5025.06071.470102.39960.929JD5116.53469.880103.99164.111JD5216.71267.350105.65868.308JD5325.31364.810106.72371.913JD5416.78862.190108.12775.937JD5516.83976.750104.96068.210JD5616.43878.530103.29864.768JD5733.15070.290101.80861.518JD5816.84771.630100.70859.078JD5916.78073.560100.98757.427JD6016.42476.25099.91453.664JD6112.34177.68098.21850.538JD6221.02778.24097.37949.139JD6324.97577.19095.24348.053JD6416.48475.38095.53550.155JD6516.77176.61096.62650.016JD6616.89074.35093.20548.855JD6716.77177.53091.37843.848JD6810.36275.24089.77044.530JD6925.82273.86089.40645.546JD7015.45271.54088.01546.475JD7116.78871.20088.03246.832JD7216.72972.73088.90846.178JD7316.71273.68087.30643.626JD7411.68275.38085.53340.153JD7527.15174.16084.91340.753JD7615.45276.29082.62836.338JD7716.85674.38082.52138.141JD7816.79772.94084.04841.108JD7916.76372.72082.42739.707JD8014.00671.35079.09237.742JD8116.80575.83084.03238.202JD8216.81476.98084.43837.458JD8321.39674.36088.58444.224JD8416.73771.58086.23944.659JD858.74070.20083.05442.854JD8613.09172.85089.32546.475JD8730.47770.26090.88050.620JD8816.83968.63088.32349.693JD8916.81470.25084.94644.696JD9010.11772.15080.48638.336JD9113.61372.69092.11549.425JD9216.83973.48093.32649.846JD9326.63674.62094.66850.048JD9416.87371.86092.30350.443JD9516.82270.23089.26249.032JD9611.65071.09085.42044.330JD978.73172.80094.85252.052JD9815.79073.74095.88152.141JD9932.01875.29097.14251.852JD10016.62773.60093.75950.159JD10116.67071.87091.49649.626JD10212.56269.58088.49148.911JD10315.01071.63098.57356.943JD10416.66172.980100.41857.438JD10516.87372.85098.01855.168JD10616.81471.960100.07058.110JD10716.80572.07094.73452.664JD10816.80570.66095.93455.274JD10914.95371.77086.20344.433JD11014.93673.87085.54141.671JD11116.81471.36085.77844.4183.4.3平差計(jì)算管段參數(shù)表3-3平差計(jì)算管段參數(shù)平差計(jì)算管道參數(shù)管道編號管徑(mm)管長(m)流量(L/s)流速(m/s)千米損失(m)管道損失(m)JD1-JD21600102.0002055.2800.9850.7580.077JD2-JD31600143.0002052.3450.9840.7560.108JD3-JD41000217.005739.9350.9041.1070.240JD3-JD541200984.0001301.0431.1501.4371.414JD4-JD51000589.000733.1180.8951.0880.641JD5-JD6800778.000490.0770.9331.5141.178JD6-JD7800987.000475.1490.9041.4301.411JD7-JD8800999.000458.3520.8721.3381.336JD8-JD9700986.000410.9881.0212.0862.056JD8-JD59200988.00022.2210.6543.7923.747JD9-JD10700990.000394.2760.9791.9311.912JD10-JD11700995.000377.4880.9381.7821.773JD11-JD12600991.000302.7310.9562.1212.102JD11-JD65300996.00049.5360.6522.3752.366JD12-JD13600991.000285.9680.9031.9091.891JD13-JD14600955.000269.5100.8511.7101.633JD14-JD15600991.000253.0520.7991.5221.509JD15-JD16500986.000193.2770.8692.1812.151JD15-JD72250987.00034.7080.6592.9872.948JD16-JD17500982.000176.6330.7951.8471.813JD17-JD18500994.000159.9210.7191.5371.527JD18-JD19400296.583110.2160.8272.6660.791JD18-JD78250990.00030.4170.5772.3402.317JD19-JD20400702.417101.7670.7632.3001.616JD20-JD21350991.00087.4450.8503.2543.225JD21-JD22350961.00070.9360.6892.2102.124JD22-JD23300995.00054.3930.7162.8242.810JD23-JD24250992.00037.5880.7133.4623.434JD24-JD25200661.00023.6080.6954.2422.804JD25-JD26200989.0009.6530.2840.8110.802JD26-JD27200998.0007.1520.2100.4660.465JD27-JD28200978.00023.8640.7024.3274.232JD28-JD29250996.00040.5590.7703.9853.969JD29-JD30200953.00012.6870.3731.3451.281JD29-JD80350673.03775.4220.7332.4751.666JD30-JD31200995.0003.7880.1110.1440.143JD31-JD32200995.00020.6180.6073.3023.285JD32-JD33250985.00037.3640.7093.4243.373JD33-JD34200997.00023.5890.6944.2364.223JD33-JD8535041.36178.0660.7582.6380.109JD34-JD35200996.0006.7330.1980.4160.415JD35-JD36200668.0007.3400.2160.4890.326JD36-JD37200531.58617.4860.5152.4341.294JD37-JD38200463.4145.5300.1630.2890.134JD37-JD90250203.23133.1500.6292.7440.558JD38-JD39200984.0006.7120.1980.4140.407JD39-JD40250998.00023.4750.4461.4491.446JD40-JD41250470.70535.8970.6813.1791.497JD41-JD42250527.29519.3220.3671.0110.533JD41-JD96200384.50328.2670.8325.9192.276JD42-JD43250995.00032.1970.6112.6002.587JD43-JD44250994.0009.4070.1790.2670.265JD43-JD102250486.29843.7250.8304.5802.227JD44-JD45250997.00026.2460.4981.7811.776JD45-JD46250995.00043.0930.8184.4584.436JD46-JD47300305.00054.0880.7122.7950.852JD47-JD48300986.00065.0070.8563.9273.872JD48-JD49350975.00081.5920.7932.8632.791JD49-JD50400994.00098.2450.7372.1552.142JD50-JD51900976.000692.2131.0441.6311.591JD50-JD104800993.000568.9071.0831.9951.981JD51-JD52900979.000708.7471.0681.7031.668JD52-JD531000997.000725.4590.8861.0671.064JD53-JD5412001001.0001284.2551.1361.4031.404JD53-JD55800995.000533.4831.0151.7711.763JD55-JD56800996.000516.6440.9831.6691.663JD56-JD57800947.573500.2060.9521.5721.490JD57-JD58200996.00011.4060.3361.1041.100JD57-JD60700986.000393.0180.9761.9201.893JD57-JD106350990.00062.6320.6091.7551.738JD58-JD59200996.0005.4410.1600.2810.280JD60-JD61700956.000376.5940.9351.7741.696JD61-JD62700503.233364.2530.9051.6680.840JD62-JD63600992.000305.1750.9642.1532.135JD62-JD108300991.00038.0510.5011.4581.445JD63-JD64300962.00016.2810.2140.3030.292JD63-JD66600999.000296.4810.9362.0402.038JD64-JD65300987.00032.7650.4311.1061.091JD66-JD67600998.000279.5910.8831.8311.827JD67-JD68600985.000262.8200.8301.6331.608JD68-JD69600240.140252.4580.7971.5160.364JD69-JD70200833.00014.2610.4201.6701.391JD69-JD73500988.000190.5860.8572.1262.100JD69-JD111200992.00021.7890.6413.6573.628JD70-JD71200994.0001.1910.0350.0170.017JD71-JD72250991.00017.9790.3410.8850.877JD73-JD74500988.000173.8740.7821.7941.772JD74-JD75500393.282162.1920.7301.5770.620JD75-JD76200830.00018.6880.5502.7532.285JD75-JD79400999.000106.1910.7972.4892.486JD75-JD81200988.00010.1610.2990.8920.881JD76-JD77200997.0003.2360.0950.1070.107JD77-JD78200996.00013.6200.4011.5331.527JD79-JD80350983.00089.4280.8693.3923.335JD81-JD82200999.0006.6440.1960.4060.406JD82-JD83200989.00023.4580.6904.1924.146JD83-JD84400987.000103.5430.7772.3752.344JD83-JD86500553.867148.3970.6681.3380.741JD84-JD85350992.00086.8060.8433.2103.185JD86-JD87500994.000161.4880.7261.5651.555JD87-JD88350996.00076.9200.7472.5672.557JD87-JD91600615.539293.7990.9282.0061.235JD87-JD109200998.00024.9140.7334.6864.677JD88-JD89300995.00060.0810.7913.3943.377JD89-JD90250993.00043.2670.8214.4914.460JD91-JD92700994.000307.4120.7631.2191.212JD92-JD93700997.000324.2510.8051.3451.341JD93-JD94350999.00073.6120.7152.3672.364JD93-JD97800162.377420.0590.7991.1380.185JD93-JD107250991.0004.4410.0840.0670.066JD94-JD95300996.00056.7390.7473.0533.041JD95-JD96250993.00039.9170.7583.8693.842JD97-JD98800870.000428.7900.8161.1821.029JD98-JD99800997.000444.5800.8461.2641.260JD99-JD100350994.00089.5840.8703.4033.383JD99-JD103800797.778537.2361.0221.7951.432JD99-JD105300997.00028.9450.3810.8790.876JD100-JD101350972.00072.9570.7092.3282.263JD101-JD102300999.00056.2870.7413.0093.006JD103-JD104800977.000552.2461.0511.8881.845JD105-JD106300998.00045.8180.6032.0562.052JD107-JD108250996.00021.2460.4031.2051.200JD109-JD110200770.0009.9610.2930.8600.662JD110-JD111200996.0004.9750.1460.2380.2373.5管網(wǎng)校核3.5.1消防工況校核給水管網(wǎng)的設(shè)計(jì)流量未計(jì)入消防流量，當(dāng)火災(zāi)發(fā)生在最高最高時(shí)時(shí)，消防流量比較大，管網(wǎng)以保證滅火用水為主。為了安全起見，按最高時(shí)用水量加上消防流量的工況進(jìn)行消防校核。1.富陽區(qū)人口小于30萬人，查城鎮(zhèn)、居民區(qū)室外消防用水量表知同一時(shí)間火災(zāi)次數(shù)為2次，一次滅火用水量為55L/s。2.火災(zāi)流量全部由二級泵站供給。表3-4平差計(jì)算依據(jù)和結(jié)果平差計(jì)算依據(jù)和結(jié)果平差類型消防校核2、計(jì)算公式海曾威廉公式V=0.44*C*(Re/C)^0.075*(g*D*I)^0.5Re=V*D/ν計(jì)算溫度：13℃ν=0.0000013、局部損失系數(shù)：1.204、水源點(diǎn)水泵參數(shù):無參數(shù)5、管網(wǎng)平差結(jié)果特征參數(shù)水源點(diǎn)編號節(jié)點(diǎn)流量(L/s)節(jié)點(diǎn)壓力(m)JD1-2165.280109.726最大管徑(mm):1600.00最小管徑(mm):200.00最大流速(m/s):2.114最小流速(m/s):0.024水壓最低點(diǎn)JD24壓力(m):12.41自由水頭最低點(diǎn)JD24自由水頭(m):-29.57表3-5平差計(jì)算節(jié)點(diǎn)參數(shù)表平差計(jì)算節(jié)點(diǎn)參數(shù)節(jié)點(diǎn)編號流量(L/s)地面標(biāo)高(m)節(jié)點(diǎn)水壓(m)自由水頭(m)JD1-2165.28063.510109.72676.216JD22.93563.930109.64175.711JD311.36761.590109.52277.932JD46.81764.830109.24674.416JD5243.04165.230108.51073.280JD614.92866.490107.06870.578JD716.79768.210105.32967.119JD825.14464.270103.67069.400JD916.71266.160101.05364.893JD1016.78866.86098.59761.737JD1125.22067.29096.29559.005JD1216.76369.54093.34853.808JD1316.45867.63090.64853.018JD1416.45869.68088.26948.589JD1525.06870.32086.02445.704JD1616.64471.85082.32340.473JD1716.71270.21079.06438.854JD1819.28869.53076.17336.643JD198.44968.22074.13235.912JD2014.32269.42069.70030.280JD2116.50970.65059.69719.047JD2216.54371.58051.75310.173JD2316.80572.36038.030-4.330JD24123.98071.98012.407-29.573JD2513.95571.25013.284-27.966JD2616.80570.76018.497-22.263JD2716.71269.68031.529-8.151JD2816.69568.20054.87516.675JD2922.17669.72067.79528.075JD3016.47570.86067.65926.799JD3116.83071.69068.99927.309JD3216.74642.68075.38332.703JD3317.11371.59080.39338.803JD3416.85672.87076.67933.809JD3514.07371.16076.42735.267JD3610.14672.67076.89534.225JD3710.13470.63078.41537.785JD3812.24271.48078.32836.848JD3916.76370.26078.87838.618JD4012.42269.11080.46141.351JD4111.69370.83082.04941.219JD4212.87571.46082.63441.174JD4320.93572.65085.36942.719JD4416.83974.36085.67241.312JD4516.84775.53087.53742.007JD4610.99576.28092.10745.827JD4710.91974.16092.98048.820JD4816.58571.85096.92955.079JD4916.65370.26099.76559.505JD5025.06071.470101.93660.466JD5116.53469.880103.61263.732JD5216.71267.350105.36768.017JD5325.31364.810106.48571.675JD5416.78862.190107.99975.809JD5516.83966.750104.51367.763JD5616.43868.530102.64664.116JD5733.15070.290100.96660.676JD5816.84771.63099.79758.167JD5916.78073.560100.04256.482JD6016.42476.25098.76652.516JD6112.34177.68096.78249.102JD6221.02778.24095.79547.555JD6324.97577.19093.16445.974JD6416.48475.38093.34947.969JD6516.77176.61094.23347.623JD6616.89074.35090.68846.338JD6716.77177.53088.44340.913JD6810.36275.24086.44341.203JD6925.82273.86085.98642.126JD7015.45271.54083.52341.983JD7116.78871.20083.36742.167JD7216.72972.73083.83541.105JD7316.71273.68083.23139.551JD7411.68275.38080.84935.469JD7527.15174.16079.99935.839JD7615.45276.29075.60329.313JD7716.85674.38074.54430.164JD7816.79772.94074.84831.908JD7916.76372.72076.20333.483JD8014.00671.35070.74529.395JD8116.80575.83079.75633.926JD8216.81476.98080.91933.939JD8321.39674.36086.88242.522JD8416.73771.58084.22142.641JD858.74070.20080.52140.321JD8613.09172.85087.74144.891JD8730.47770.26089.52549.265JD8816.83968.63086.94348.313JD8916.81470.25083.52343.273JD9010.11772.15078.98536.835JD9113.61372.69090.88148.191JD9216.83973.48092.20648.726JD9326.63674.62093.66649.046JD9416.87371.86091.29049.430JD9516.82270.23088.23048.000JD9611.65071.09084.35443.264JD978.73172.80093.86651.066JD9815.79073.74094.97951.239JD9932.01875.29096.33951.049JD10016.62773.60092.93649.336JD10116.67071.87090.65748.787JD10212.56269.58087.62348.043JD10315.01071.63097.86656.236JD10416.66172.98099.83056.850JD10516.87372.85097.20454.354JD10616.81471.96099.23957.279JD10716.80572.07093.67351.603JD10816.80570.66094.56453.904JD10914.95371.77083.98042.210JD11014.93673.87082.99339.123JD11116.81471.36083.06441.704表3-6平差計(jì)算管段參數(shù)表平差計(jì)算管道參數(shù)管道編號管徑(mm)管長(m)流量(L/s)流速(m/s)千米損失(m)管道損失(m)JD1-JD21600102.0002165.2801.0380.8350.085JD2-JD31600143.0002162.3451.0360.8330.119JD3-JD41000217.005796.7150.9731.2690.275JD3-JD541200984.0001354.2631.1971.5471.523JD4-JD51000589.000789.8980.9651.2490.736JD5-JD6800778.000546.8571.0411.8541.443JD6-JD7800987.000531.9291.0121.7621.739JD7-JD8800999.000515.1320.9801.6601.659JD8-JD9700986.000468.1491.1632.6542.617JD8-JD59200988.00021.8390.6433.6733.628JD9-JD10700990.000451.4371.1212.4812.456JD10-JD11700995.000434.6491.0802.3132.302JD11-JD12600991.000363.4321.1482.9742.947JD11-JD65300996.00045.9970.6062.0712.063JD12-JD13600991.000346.6691.0952.7252.701JD13-JD14600955.000330.2111.0432.4912.379JD14-JD15600991.000313.7530.9912.2662.245JD15-JD16500986.000259.1431.1663.7533.700JD15-JD72250987.00029.5420.5612.2172.188JD16-JD17500982.000242.4991.0913.3193.259JD17-JD18500994.000225.7871.0162.9082.891JD18-JD19400296.583184.0131.3806.8822.041JD18-JD78250990.00022.4860.4271.3381.325JD19-JD20400702.417175.5641.3176.3094.431JD20-JD21350991.000161.2421.56710.09510.004JD21-JD22350961.000144.7331.4068.2667.944JD22-JD23300995.000128.1901.68713.79213.723JD23-JD24250992.000111.3852.11425.83025.623JD24-JD25200661.00012.5950.3711.3270.877JD25-JD26200989.00026.5500.7815.2715.213JD26-JD27200998.00043.3551.27613.05913.033JD27-JD28200978.00060.0671.76823.87023.345JD28-JD29250996.00076.7621.45712.97212.920JD29-JD30200953.0003.7770.1110.1430.136JD29-JD80350673.037102.7150.9984.3832.950JD30-JD31200995.00012.6980.3741.3471.340JD31-JD32200995.00029.5280.8696.4176.385JD32-JD33250985.00046.2740.8785.0865.009JD33-JD34200997.00022.0050.6483.7243.713JD33-JD8535041.36185.3910.8303.1140.129JD34-JD35200996.0005.1490.1520.2540.253JD35-JD36200668.0008.9240.2630.7010.468JD36-JD37200531.58619.0700.5612.8581.519JD37-JD38200463.4144.3540.1280.1860.086JD37-JD90250203.23133.5580.6372.8070.570JD38-JD39200984.0007.8880.2320.5580.549JD39-JD40250998.00024.6510.4681.5861.583JD40-JD41250470.70537.0730.7043.3751.589JD41-JD42250527.29520.3080.3851.1080.584JD41-JD96200384.50328.4580.8385.9932.304JD42-JD43250995.00033.1830.6302.7492.735JD43-JD44250994.00010.1070.1920.3050.303JD43-JD102250486.29844.0110.8354.6352.254JD44-JD45250997.00026.9460.5111.8701.865JD45-JD46250995.00043.7930.8314.5934.570JD46-JD47300305.00054.7880.7212.8620.873JD47-JD48300986.00065.7070.8654.0063.950JD48-JD49350975.00082.2920.8002.9082.836JD49-JD50400994.00098.9450.7422.1842.171JD50-JD51900976.000711.9751.0731.7181.677JD50-JD104800993.000587.9701.1192.1212.106JD51-JD52900979.000728.5091.0981.7921.755JD52-JD531000997.000745.2210.9101.1221.119JD53-JD5412001001.0001337.4751.1831.5121.514JD53-JD55800995.000566.9411.0791.9821.972JD55-JD56800996.000550.1021.0471.8751.867JD56-JD57800947.573533.6641.0151.7721.680JD57-JD58200996.00011.7880.3471.1741.169JD57-JD60700986.000426.2961.0592.2322.200JD57-JD106350990.00062.4300.6071.7451.727JD58-JD59200996.0005.0590.1490.2450.244JD60-JD61700956.000409.8721.0182.0751.984JD61-JD62700503.233397.5310.9871.9610.987JD62-JD63600992.000341.6101.0792.6522.631JD62-JD108300991.00034.8950.4591.2421.231JD63-JD64300962.00012.7420.1680.1930.185JD63-JD66600999.000329.3771.0402.4792.476JD64-JD65300987.00029.2260.3850.8950.883JD66-JD67600998.000312.4870.9872.2492.244JD67-JD68600985.000295.7160.9342.0312.000JD68-JD69600240.140285.3540.9011.9010.457JD69-JD70200833.00019.4270.5722.9572.464JD69-JD73500988.000220.7170.9932.7892.755JD69-JD111200992.00019.3880.5712.9462.923JD70-JD71200994.0003.9750.1170.1570.156JD71-JD72250991.00012.8130.2430.4730.469JD73-JD74500988.000204.0050.9182.4112.382JD74-JD75500393.282192.3230.8652.1620.850JD75-JD76200830.00026.6190.7835.2974.396JD75-JD79400999.000133.4841.0013.8003.796JD75-JD81200988.0005.0690.1490.2460.243JD76-JD77200997.00011.1670.3291.0621.059JD77-JD78200996.0005.6890.1670.3050.304JD79-JD80350983.000116.7211.1345.5525.458JD81-JD82200999.00011.7360.3451.1641.163JD82-JD83200989.00028.5500.8406.0295.963JD83-JD84400987.000110.8680.8322.6952.660JD83-JD86500553.867160.8150.7231.5520.860JD84-JD85350992.00094.1310.9153.7303.700JD86-JD87500994.000173.9060.7821.7941.784JD87-JD88350996.00077.3280.7512.5922.582JD87-JD91600615.539309.0260.9762.2031.356JD87-JD109200998.00027.3150.8045.5565.545JD88-JD89300995.00060.4890.7963.4373.420JD89-JD90250993.00043.6750.8294.5704.538JD91-JD92700994.000322.6390.8011.3331.325JD92-JD93700997.000339.4780.8431.4641.460JD93-JD94350999.00073.8030.7172.3782.376JD93-JD97800162.377438.6330.8351.2330.200JD93-JD107250991.0001.2850.0240.0070.007JD94-JD95300996.00056.9300.7493.0723.060JD95-JD96250993.00040.1080.7613.9043.876JD97-JD98800870.000447.3640.8511.2791.113JD98-JD99800997.000463.1540.8811.3641.360JD99-JD100350994.00089.8700.8733.4233.403JD99-JD103800797.778556.2991.0591.9141.527JD99-JD105300997.00028.7430.3780.8680.865JD100-JD101350972.00073.2430.7122.3452.279JD101-JD102300999.00056.5730.7453.0373.034JD103-JD104800977.000571.3091.0872.0111.964JD105-JD106300998.00045.6160.6002.0392.035JD107-JD108250996.00018.0900.3430.8950.891JD109-JD110200770.00012.3620.3641.2820.987JD110-JD111200996.0002.5740.0760.0700.0703.5.2事故工況校核給水管網(wǎng)主要管線損壞時(shí)必須及時(shí)檢修，在檢修和恢復(fù)供水前，該管段停止輸水，整個(gè)管網(wǎng)的水力特性改變，供水能力降低。根據(jù)國家有關(guān)規(guī)定，城市給水管網(wǎng)在事故工況下，必須保證70%以上用水量。一般按最不利事故工況進(jìn)行校核，即考慮靠近供水泵站主干管在最高時(shí)損壞的情況；節(jié)點(diǎn)壓力仍按設(shè)計(jì)時(shí)的服務(wù)水頭要求表3-7平差計(jì)算依據(jù)和結(jié)果平差計(jì)算依據(jù)和結(jié)果平差類型事故校核2、計(jì)算公式海曾威廉公式V=0.44*C*(Re/C)^0.075*(g*D*I)^0.5Re=V*D/ν計(jì)算溫度：13℃ν=0.0000013、局部損失系數(shù)：1.204、水源點(diǎn)水泵參數(shù):無參數(shù)5、管網(wǎng)平差結(jié)果特征參數(shù)水源點(diǎn)編號節(jié)點(diǎn)流量(L/s)節(jié)點(diǎn)壓力(m)JD1-1438.696109.726最大管徑(mm):1600.00最小管徑(mm):200.00最大流速(m/s):0.805最小流速(m/s):0.019水壓最低點(diǎn)JD25壓力(m):-0.01自由水頭最低點(diǎn)JD25自由水頭(m):-41.26表3-8平差計(jì)算節(jié)點(diǎn)參數(shù)表平差計(jì)算節(jié)點(diǎn)參數(shù)節(jié)點(diǎn)編號流量(L/s)地面標(biāo)高(m)節(jié)點(diǎn)水壓(m)自由水頭(m)JD1-1428.92763.510109.72676.216JD22.05563.930109.68775.757JD37.95761.590109.63178.041JD44.77264.830109.51174.681JD5170.12965.230109.19173.961JD610.45066.490108.61372.123JD711.75868.210107.92169.711JD817.60164.270107.26772.997JD911.69866.160106.27070.110JD1011.75266.860105.34468.484JD1117.65467.290104.48967.199JD1211.73469.540103.51063.970JD1311.52167.630102.63565.005JD1411.52169.680101.88462.204JD1517.54870.320101.19760.877JD1611.65171.850100.28358.433JD1711.69870.21099.52759.317JD1813.50269.53098.90659.376JD195.91468.22098.64460.424JD2010.02569.42098.13158.711JD2111.55670.65097.20056.550JD2211.58071.58096.68155.101JD2311.76472.36096.17453.814JD249.78671.98095.88953.909JD259.76871.250-0.010-41.260JD2611.76470.76083.97943.219JD2711.69869.68085.14545.465JD2811.68768.20089.24751.047JD2915.52369.72092.29252.572JD3011.53270.86091.77550.915JD3111.78171.69091.91750.227JD3211.72272.68093.86651.186JD3311.97971.59095.75054.160JD3411.79972.87093.60750.737JD359.85171.16093.40652.246JD367.10272.67093.58550.915JD377.09470.63094.27053.640JD388.56971.48094.20452.724JD3911.73470.26094.42354.163JD408.69569.11095.17856.068JD418.18570.83095.95755.127JD429.01271.46096.23554.775JD4314.65472.65097.58054.930JD4411.78774.36097.71853.358JD4511.79375.53098.63953.109JD467.69676.280100.93754.657JD477.64374.160101.37857.218JD4811.61071.850103.38361.533JD4911.65770.260104.82764.567JD5017.54271.470105.93664.466JD5111.57469.880106.76066.880JD5211.69867.350107.62470.274JD5317.71964.810108.17673.366JD5411.75262.190108.90176.711JD5511.78766.750107.26970.519JD5611.50768.530106.41467.884JD5723.20570.290105.64765.357JD5811.79371.630105.11163.481JD5911.74673.560105.27361.713JD6011.49776.250104.67458.424JD618.63977.680103.80356.123JD6214.71978.240103.37255.132JD6317.48277.190102.27955.089JD6411.53975.380102.48157.101JD6511.74076.610103.13656.526JD6611.82374.350101.21856.868JD6711.74077.530100.26752.737JD687.25375.24099.42954.189JD6918.07573.86099.23955.379JD7010.81671.54098.76157.221JD7111.75271.20098.84357.643JD7211.71072.73099.43656.706JD7311.69873.68098.11354.433JD748.17775.38097.15951.779JD7519.00674.16096.82552.665JD7610.81676.29096.08549.795JD7711.79974.38096.09151.711JD7811.75872.94097.38654.446JD7911.73472.72095.35352.633JD809.80471.35093.33151.981JD8111.76475.83096.37550.545JD8211.77076.98096.58949.609JD8314.97774.36098.74454.384JD8411.71671.58097.50255.922JD856.11870.20095.80855.608JD869.16472.85099.13456.284JD8721.33470.26099.95159.691JD8811.78768.63098.62659.996JD8911.77070.25096.87556.625JD907.08272.15094.56052.410JD919.52972.690100.59557.905JD9211.78773.480101.22757.747JD9318.64574.620101.92657.306JD9411.81171.860100.70258.842JD9511.77570.23099.12858.898JD968.15571.09097.13756.047JD976.11272.800102.02259.222JD9811.05373.740102.55658.816JD9922.41375.290103.21057.920JD10011.63973.600101.46057.860JD10111.66971.870100.28958.419JD1028.79339.58098.73359.153JD10310.50771.630103.95262.322JD10411.66372.980104.90961.929JD10511.81172.850103.67160.821JD10611.77071.960104.74262.782JD10711.76472.070101.96659.896JD10811.76470.660102.60961.949JD10910.46771.77097.55355.783JD11010.45573.87097.21853.348JD11111.77071.36097.34655.986表3-9平差計(jì)算管段參數(shù)表平差計(jì)算管道參數(shù)管道編號管徑(mm)管長(m)流量(L/s)流速(m/s)千米損失(m)管道損失(m)JD1-JD21600102.0001428.9270.6850.3870.039JD2-JD31600143.0001426.8730.6840.3860.055JD3-JD41000217.005508.5170.6210.5530.120JD3-JD541200984.000910.3990.8050.7420.730JD4-JD51000589.000503.7450.6150.5440.320JD5-JD6800778.000333.6160.6350.7430.578JD6-JD7800987.000323.1670.6150.7010.692JD7-JD8800999.000311.4090.5930.6540.654JD8-JD9700986.000278.0060.6901.0120.998JD8-JD59200988.00015.8020.4652.0181.994JD9-JD10700990.000266.3070.6610.9350.925JD10-JD11700995.000254.5560.6320.8600.855JD11-JD12600991.000200.2840.6320.9880.979JD11-JD65300996.00036.6180.4821.3581.353JD12-JD13600991.000188.5500.5950.8830.875JD13-JD14600955.000177.0290.5590.7860.751JD14-JD15600991.000165.5080.5230.6940.688JD15-JD16500986.000121.6940.5470.9270.914JD15-JD72250987.00026.2670.4991.7841.761JD16-JD17500982.000110.0430.4950.7700.756JD17-JD18500994.00098.3440.4420.6250.621J