南水北调干线加压实验调压池退水闸及滞洪水库进水流量计算  

Pressurization experiment on the main line of South-to-North water diversion project calculation of inflow of the backwater gate of the surge tank and the flood detention reservoir

作　　者：徐华山 马寅男 黄云海 王巍 王京生 李玉臣 张星 周杰 XU Huashan;MA Yinnan;HUANG Yunhai;WANG Wei;WANG Jingsheng;LI Yucheng;ZHANG Xing;ZHOU Jie(Beijing Drainage Management Center,Beijing 100195,China;Daning Management Office of Beijing South-to-North Water Diversion,Beijing 100442,China;Anhui University of Architecture Survey and Design Institute Co.,Ltd.,Hefei 230022,China;Beijing Bitongtaima Water Environment Treatment Co.,Ltd.,Beijing 101121,China;Beijing Water Engineering Construction and Management Center,Beijing 100036,China)

机构地区：[1]北京市排水管理事务中心,北京100195 [2]北京市南水北调大宁管理处,北京100442 [3]安徽建筑大学勘测设计研究院有限公司,安徽合肥230022 [4]北京碧通台马水环境治理有限公司,北京101121 [5]北京市水务工程建设与管理事务中心,北京100036

出　　处：《北京水务》2022年第2期61-65,共5页Beijing Water

基　　金：国家重点研发计划(2016YFC0503004):“京津冀城市群生态安全保障技术研究”。

摘　　要：利用水工建筑物量水是一种简便而经济的方法,但也存在实际流态判断及参数率定困难的实际问题。利用南水北调干线北京段加压输水和水源切换的契机,观测和收集了40000余组数据资料,整理出80组可用数据,利用这部分数据,根据不同的流态,选取合适的计算公式,利用EXCEL 2016函数编辑相关公式,开展调压池大流量退水计算和滞洪水库进水闸小流量出流计算,并开展了误差分析,从数据观测和工况流态变化方面分析了计算误差产生的原因。计算结果表明:调压池退水闸闸孔出流计算流量81.25%的结果偏差控制在±6%以内,滞洪水库进水闸出流计算流量76.25%的结果偏差控制在±6%以内,较好地实现了流量计算的准确性。Using hydraulic structures to measure water is a simple and economical method,but it is also difficult to judge the actual flow pattern and calibrate the parameters.Taking the opportunity of pressurized water delivery and water source switching in Beijing section of the South-to-North water diversion trunk line,this paper observed more than 40000 groups of data.Based on 80 groups of data available,this paper select appropriate calculation formula according to different flow patterns,and edit the relevant formula by Excel 2016 to calculate the large flow return calculation of surge tank and the small flow outlet of flood detention reservoir intake gate.At the same time,the error analysis is carried out,and the causes of the calculation error are also analyzed from the data observation and the change of the working condition flow state.Calculation results show that the deviation of 81.25%of the calculated discharge of the outlet sluice of the surge tank is controlled within±6%,and the deviation of 76.25%of the calculated discharge of the inlet sluice of the flood detention reservoir is controlled within±6%,which achieves the accuracy of the discharge calculation.

关 键 词：水工建筑物 流量计算 南水北调 调压池 滞洪水库 

分 类 号：TV877[水利工程—水利水电工程]