市政排水管道水力計(jì)算表

1、已已知知流流量量、坡坡度度，計(jì)計(jì)算算管管徑徑滿滿流流粗糙系數(shù)n0.009流量2.4476坡度0.005管管徑徑d d1.0001.000水水力力半半徑徑r r0.2500012450.250001245過(guò)過(guò)水水?dāng)鄶嗝婷鎍 a0.7850078210.785007821流流速速v v3.1179501343.117950134恒恒定定流流滿滿流流下下水水力力坡坡降降約約等等于于管管道道坡坡度度m3/sm mm mm2m2m/sm/s內(nèi)內(nèi)插插法法求求總總變變化化系系數(shù)數(shù)平平均均日日流流量量(l/s)(l/s) 5 5 1515 4040 7070 100100 200200 500500 1000

2、10001 15 55 512總總變變化化系系數(shù)數(shù) 2.32.3 2.02.0 1.81.8 1.71.7 1.61.6 1.51.5 1.41.4 1.31.32 22 2. .3 32 2. .0 09 94 40 01 15 521.131 1. .8 82 21 1. .9 95 50 09 96 67 70 04 40 046.921 1. .7 71 1. .8 8 1 1. .7 77 76 69 93 33 31 10 00 07 70 089.31 1. .6 61 1. .7 7 1 1. .6 63 35 56 66 67 72 20 00 01 10 00 0116.6

3、81 1. .5 51 1. .6 61 1. .5 58 83 33 32 25 50 00 02 20 00 0214.861 1. .4 41 1. .5 5 1 1. .4 49 95 50 04 47 7表3.1.3 綜合生活污水量總變化系數(shù)平均日流量(l/s) 5 15 40 70 100 200 500 1000已已知知流流量量、坡坡度度，計(jì)計(jì)算算管管徑徑總變化系數(shù) 2.3 2.0 1.8 1.7 1.6 1.5 1.4 1.3注：當(dāng)污水平均日流量為中間數(shù)值時(shí)，總變化系數(shù)可用內(nèi)插法求得。已已知知坡坡度度、管管徑徑，計(jì)計(jì)算算流流量量、流流速速滿滿流流粗糙系數(shù)n0.0130水力坡降i

4、0.0130流流量量換換算算管徑d1.6500m水水力力半半徑徑r r0.41250.4125m m流流速速v v4.86014.8601m/sm/s過(guò)過(guò)水水?dāng)鄶嗝婷鎍 a2.13722.1372m2m2流流量量q q10.386810.3868m3/sm3/s非非滿滿流流粗糙系數(shù)n0.0090水力坡降i0.0020管徑d0.3000m充滿度h/d0.3050充充滿滿角角（以以弧弧度度計(jì)計(jì)，=角角度度*0.017444445*0.017444445） 1.17021.1702濕濕周周0.62730.6273水水力力半半徑徑r r0.05200.0520m m流流速速v v0.69210.6921m/sm/s過(guò)過(guò)水水?dāng)鄶嗝婷鎍 a0.01820.0182m2m2流流量量q q0.01260.0126m3/sm3/s管管段段設(shè)設(shè)計(jì)計(jì)流流量量（m3/sm3/s）25.080m3/s41.224m3/s83.374m3/s146.065m3/s184.742m3/s321.226m3/sm3/hm3/hm3/sm3/sl/sl/s10 0. .0 00 00 02 27 78 8 0 0.