噶米合流排水管道计算-作业(最新整理)

1、某市一工业区拟采用合流排水系统，其管渠的布置如图 1 所示，各设计管段的管长、排水面积、各管段的工业废水设计流量见表 2。其他原始资料如下：（1） 设计雨水量的计算公式及参数：10020(1+ 0.56 lg p)暴雨强度公式为： q =t + 36l/（sha）；123456设计暴雨重现期 p1a；地面集水时间 t110min，折减系数 m2； 该设计区域综合径流系数为0.45。管段编号管 道排水面积（ha）本段工业废水流量（l/s） 河 流图 1合流制排水管道的平面布置长 度l（m）面积编号本段面积12851.2020231281.791034590.8360451381.93056165

2、.52.1235（2） 设计人口密度为 300cap/ha，生活污水量标准按 100l/（capd）计。（3） 截流干管的截流倍数 n0 采用 3。试计算：各设计管段的设计流量，并进行水力计算，结果填入表 2 中；若在 5 点设置溢流井，则 56 管段的设计流量及 5 点的溢流量各为多少？(25 分)注：流量计算精确到小数点后两位，设计流量的总计（表 2 中的第 12 项）不得忽略旱流流量。计算用钢筋混凝土圆管（满流）、n0.013 的水力计算表见附表 3。设计管道输水能力 q在提供的水力计算表中选取与设计总流量值相等或稍大的最接近一档的流量值。写出在 5 点设置溢流井后，56 管段的设计流量

3、及 5 点的溢流量的计算步骤。管段编号管 道长 度l（m）排水面积（ha）管内流行时间(min)设计流量（l/s）管 径d（mm）设计坡度（）设计流速（m/s）设 计 管道 输 水能力 q（l/s）备 注本 段转 输总 计t =l2 vt = l2v雨水生活污水工业废水溢 流 井转输水量总 计1234567891011121314151617表 2截流式合流干管水力计算表12450不设溢流井23600346004570056800567005#设溢流井附表 3钢筋混凝土圆管水力计算表（满流）n=0.013d（mm）q（l/s）450600700800v（m/s）i()v（m/s）i()v（m/

4、s）i()v（m/s）i()1240.781.8920.440.4080.320.1790.250.0881260.791.9530.450.4210.330.1850.250.0911280.82.0160.450.4350.330.1910.250.0941320.832.1440.470.4620.340.2030.260.11360.862.2750.480.4910.350.2160.270.1061400.882.4110.50.520.360.2280.280.1121440.912.5510.510.550.370.2420.290.1191480.932.6950.520.5

5、810.380.2550.290.1251520.962.8420.540.6130.390.2690.30.1322841.799.92312.1390.740.940.570.4612921.8410.4891.032.2620.760.9940.580.4883001.8911.0721.062.3870.781.0490.60.5153081.9411.671.092.5160.81.1060.610.5433161.9912.2851.122.6490.821.1640.630.5713242.0412.9141.152.7840.841.2240.640.63962.4919.29

6、21.44.1591.031.8280.790.8974002.5219.6841.414.2441.041.8650.80.9154082.5720.4791.444.4151.061.9410.810.9524162.6221.291.474.591.082.0170.830.994242.6722.1171.54.7681.12.0960.841.0284322.7222.9591.534.951.122.1760.861.067d（mm）q（l/s）450600700800v（m/s）i()v（m/s）i()v（m/s）i()v（m/s）i()5503.4637.2151.958.02

7、41.433.5261.091.735603.5238.581.988.3181.463.6561.111.7935703.5839.972.028.6181.483.7871.131.8585803.6541.3852.058.9231.513.9221.151.9245903.7142.8242.099.2331.534.0581.171.9916003.7744.2882.129.5491.564.1971.192.0596103.8445.7772.169.871.594.3381.212.1286203.947.292.1910.1961.614.4811.232.1986303.9

8、648.8282.2310.5281.644.6271.252.276504.0951.9772.311.2071.694.9251.292.4166704.2155.2252.3711.9071.745.2331.332.5676904.3458.5712.4412.6281.795.551.372.7237104.4662.0162.5113.3711.845.8761.412.8837304.5965.5592.5814.1351.96.2121.453.0487504.7269.2012.6514.921.956.5571.493.2177704.8472.942.7215.72626

9、.9121.533.3917904.9776.7792.7916.5542.057.2751.573.569“”“”at the end, xiao bian gives you a passage. minand once said, people who learn to learn are very happy people. in every wonderful life, learning is an eternal theme. as a professional clerical and teaching position, i understand the importance

10、 of continuous learning, life is diligent, nothing can be gained, only continuous learning can achieve better self. only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the need