溝槽挖土方計(jì)算公式

1、求給出放坡系數(shù)的基礎(chǔ)開挖土方計(jì)算公式？解：土方邊坡用邊坡坡度和坡度系數(shù)表示。工程中常用1：K表示放坡坡度。K稱坡度系數(shù)。設(shè)：上寬為a，挖土深度為h,長(zhǎng)度為L(zhǎng)，放坡系數(shù)為k則：下寬b=a-hk那么，挖土方的計(jì)算公式是：V=(a+a-hk) / 2 x HL,溝 槽 挖 土 方 計(jì) 算 表,管徑,上寬a=b+hk,下寬b=a-hk（查下表）,溝槽深 h （墊層+管徑+覆土高度） 或 （按圖紙?jiān)O(shè)計(jì)要求）,放坡系數(shù) K（查下表）,溝槽截面積S=(a+b)h2,管道長(zhǎng)度 L （單位：米）,挖土體積 V （單位：m3）,回填土 （單位：m3）,管內(nèi)體積 （單位：m3）,墊層體積 （單位：m3）DN50,1

2、.65,0.6,0.7,0.75,0.788 ,314.34,247.543 ,223.350 ,0.617 ,23.576 DN60,1.65,0.6,0.7,0.75,0.788 ,218.76,172.274 ,155.248 ,0.618 ,16.407 DN80,1.65,0.6,0.7,0.75,0.788 ,15.37,12.104 ,10.874 ,0.077 ,1.153 DN100,1.75,0.7,0.7,0.75,0.858 ,34.86,29.892 ,27.004 ,0.274 ,2.615 DN125,0,0.000 ,0.000 ,0.000 ,0.000 ,0

3、.000 DN150,1.8,0.75,0.7,0.75,0.893 ,0.000 ,0.000 ,0.000 ,0.000 DN200,2.2,1,0.8,0.75,1.280 ,977.19,1250.803 ,1167.435 ,0.307 ,83.061 DN250,2.275,1,0.85,0.75,1.392 ,1605.32,2234.405 ,2011.165 ,78.761 ,144.479 DN300,2.55,1.2,0.9,0.75,1.688 ,0.000 ,0.000 ,0.000 ,0.000 DN400,2.8,1.3,1,0.75,2.050 ,0.000 ,

4、0.000 ,0.000 ,0.000 DN500,3.05,1.4,1.1,0.75,2.448 ,0.000 ,0.000 ,0.000 ,0.000 DN600,3.3,1.5,1.2,0.75,2.880 ,0.000 ,0.000 ,0.000 ,0.000 DN700,3.75,1.8,1.3,0.75,3.608 ,0.000 ,0.000 ,0.000 ,0.000 DN800,4,1.9,1.4,0.75,4.130 ,0.000 ,0.000 ,0.000 ,0.000 DN900,4.25,2,1.5,0.75,4.688 ,0.000 ,0.000 ,0.000 ,0.

5、000 DN1000,4.6,2.2,1.6,0.75,5.440 ,0.000 ,0.000 ,0.000 ,0.000 DN1100,4.85,2.3,1.7,0.75,6.078 ,0.000 ,0.000 ,0.000 ,0.000 DN1200,5.1,2.4,1.8,0.75,6.750 ,0.000 ,0.000 ,0.000 ,0.000 注：紅色字體已設(shè)有公式，在黑色字體的格輸入實(shí)際數(shù)據(jù)即可。沒有標(biāo)注單位為“米”。溝槽基礎(chǔ)墊層厚度：一般土質(zhì)100，較差土質(zhì)200。,放 坡 開 挖 溝 槽 底 面 寬 度 表（Hs:管材半強(qiáng)度）,公稱直徑,Hs3000,3000Hs4000,H

6、s4000,公稱直徑,Hs3000,3000Hs4000,Hs4000,DN150,650,DN700,1600,1700,1800,DN200,700,DN800,1700,1800,1900,DN300,1000,1100,1200,DN900,1800,1900,2000,DN400,1100,1300,1400,DN1000,2000,2100,2200,DN500,1300,1400,1500,DN1100,2100,2200,2300,DN600,1400,1500,1600,DN1200,2200,2300,2400,有 支 撐 溝 槽 底 面 寬 度 表（Hs:管材半強(qiáng)度）,公

7、稱直徑,Hs3000,3000Hs4000,Hs4000,公稱直徑,Hs3000,3000Hs4000,Hs4000,DN150,950,DN700,1900,2000,2100,DN200,1000,DN800,2000,2100,2200,DN300,1300,1400,1500,DN900,2100,2200,2300,DN400,1400,1600,1700,DN1000,2300,2400,2500,DN500,1600,1700,1800,DN1100,2400,2500,2600,DN600,1700,1800,1900,DN1200,2500,2600,2700,雨水口連接管溝

8、槽寬度表(),黃色表格摘自04S520圖集埋地塑料排水管施工57頁,管道規(guī)格,DN100,DN300,DN400,溝槽寬度,650,800,900,土方工程放坡系數(shù)表,綠色表格摘自網(wǎng)上,土壤類別,放坡起點(diǎn)（m）,人工挖土,機(jī)械挖土,在坑內(nèi)作業(yè),在坑上作業(yè),一、二類土,1.2,1 : 0.50,1 : 0.33,1 : 0.75,三類土,1.5,1 : 0.33,1 : 0.25,1 : 0.67,四類土,2,1 : 0.25,1 : 0.10,1 : 0.33,室外排水管土方開挖底部寬度,管徑（）,鑄鐵管、鋼管、石棉水泥管,塑料管,混凝土、鋼筋混凝土管、 預(yù)應(yīng)力鋼筋混凝土管,陶土管,5075,0.6 ,0.7 ,0.8 ,0.7 ,100200,0.7 ,0.8 ,0.9 ,0.8 ,250350,0.8 ,0.9 ,1.0 ,0.9 ,400450,1.0 ,1.1