欢迎来到天天文库
浏览记录
ID:57644420
大小:283.50 KB
页数:10页
时间:2020-08-30
《泵站设计说明.doc》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、1.排涝站设计1.1.设计暴雨计算根据《泵站技术规范》SD204-86中规定。本站暴雨历时采用3日暴雨3日排至作物耐淹水深。排涝区暴雨计算资料采用新惠站1980-2006年,共27年的三日暴雨量,进行逐一排频演算。新惠站1980-2006年三日暴雨量见下表:新惠站1980-2006年三日暴雨量统计表年份三日最大降雨日期年份三日最大降雨日期198034.96-(6-8)1994140.57-(11-13)198123.77-(21-23)199561.38-(1-3)198239.35-(2-4)199628.78-(5-6)198385.75-(10-12)199767.27-
2、(14-16)1984120.78-(10-12)1998100.88-(7-9)198575.88-(4-6)199937.16-(20-22)198695.77-(3-4)200045.28-(9-11)198772.87-(10-12)200124.46-(18-20)198863.67-(14-16)200240.18-(3-5)198943.66-(28-30)2003100.77-(16-18)199073.25-(25-27)200446.36-30~7-2199178.66-(7-8)200564.97-(21-23)199272.87-(13-15)20064
3、7.66-29、30~7-11993148.37-(17-19) 本站三日暴雨计算采用现行频率计算法——配线计算法,计算步骤如下:将原始资料降雨量X由大于小加以排列,计算系列的多年平均三日暴雨量,计算成果列入新惠站1980-2006年三日暴雨量频率计算表。。新惠站1980-2006年三日暴雨量频率计算表序号年份三日最大降雨KiKi-1(Ki-1)2P=m/(n+1)*100%11993148.32.181.181.403.57%21994140.52.071.071.147.14%31984120.71.780.780.6010.71%41998100.81.480.480
4、.2314.29%52003100.71.480.480.2317.86%6198695.71.410.410.1721.43%7198385.71.260.260.0725.00%8199178.61.160.160.0228.57%9198575.81.120.120.0132.14%10199073.21.080.080.0135.71%11198772.81.070.070.0139.29%12199272.81.070.070.0142.86%13199767.20.99-0.010.0046.43%14200564.90.96-0.040.0050.00%15198
5、863.60.94-0.060.0053.57%16199561.30.90-0.100.0157.14%17200647.60.70-0.300.0960.71%18200446.30.68-0.320.1064.29%19200045.20.67-0.330.1167.86%20198943.60.64-0.360.1371.43%21200240.10.59-0.410.1775.00%22198239.30.58-0.420.1878.57%23199937.10.55-0.450.2182.14%24198034.90.51-0.490.2485.71%2519962
6、8.70.42-0.580.3389.29%26200124.40.36-0.640.4192.86%27198123.70.35-0.650.4296.43% 67.91 6.31 取Cv=0.5,并假定Cs=3Cv,Cs=2.5Cv,Cs=2Cv进行配线计算,计算结果计入理论频率计算表。由理论频率计算表:通过配线图,十年一遇三日暴雨应为X=113.41mm,故本站设计三日暴雨采用此值。理论频率计算表频率Px=67.9x=67.9x=67.9Cv=0.5Cv=0.5Cv=0.5Cs=3Cv=1.5Cs=2.5Cv=1.25Cs=2Cv=1.0KpxpKpxpKpxp12.
7、67181.312.59175.882.51170.4551.98134.461.96133.101.94131.74101.67113.411.67113.411.67113.41201.3591.681.3692.351.3893.71500.8859.760.9061.120.9262.47750.6443.460.6342.780.6443.46900.4933.270.4731.920.4429.88950.4429.880.3926.480.3423.09990.3725.130
此文档下载收益归作者所有