摘要
随着近年来城市化进程加速,城市排涝泵站建设需求激增,如何因地制宜确定排涝泵站规模尤为重要。淮北地区常用的方法有排模法、24 h降雨24 h平均排除法和调洪演算法等。其中调洪演算法是确定排涝泵站规模比较准确的方法,但淮北地区多数排涝泵站所在河道缺少实测流量及产汇流过程线等数据,采用调洪演算法计算较繁琐。以七渔河泵站作为计算实例加以探讨,研究发现,采用最大24 h降雨时程分布24 h内暴雨后期平均排除法计算产汇流及排涝泵站规模方法便捷且计算精确,为淮北地区排涝泵站规模计算提供了一种新的方法。该方法适用于流域面积小于50 km2且缺少实测流量等数据的排水区域,已在阜阳市芦桥沟泵站和临泉县白沟站得到运用,结果科学可行。
With the acceleration of urbanization in recent years,the construction demand of urban drainage pump stations has increased dramatical1y..How to determine the scale of drainage pump stations according to 1ocal conditions is particular1y important.The commonly used methods in Huaibei area include mode1 setting method,24-hour average rainfa11 exc1usion method and f1ood regulation algorithm.Among them,the flood routing algorithm is one of the more accurate methods to determine the scale of the drainage pump station.However,the current situation of most drainage pump stations in Huaibei is 1ack of measured f1ow,unit hydrograph and other data,so it is tedious to use the flood routing algorithm to calculate.Qiyuhe pump station was taken as an examp1e to discuss this calculation.It is found that the average elimination method of the maximum 24--hour rainfa11 time history distribution in the 1ater period of the rainstorm within 24 hours is convenient and accurate in calculating the catchment discharge and the scale of the drainage pump station,which provides a new method for the scale calculation of the drainage pump station in Huaibei area.This method was suitable for drainage areas with basin area 1ess than 50 km^(2) and 1ack of measured f1ow data.It had been applied to the Luqiaogou pump station in Fuyang City and Baigou pump station in Linquan County.The results were scientific and feasible.Qiyuhe pump station was taken as an examp1e to discuss this calculation.
作者
胡少南
HU Shaonan(AnHui Fuyang Water Conservancy P1anning and Design of Institute Co.,Ltd,Fuyang 236600,China)
出处
《江淮水利科技》
2023年第2期18-22,共5页
Jianghuai Water Resources Science and Technology
关键词
城市排涝
暴雨后期平均排除法
设计流量
泵站规模计算
urban drainage
average exc1usion method in 1ate rainstorm
designed di scharge
pumping
