摘要
雨水口作为连接地表径流与地下管流的重要关口,其泄流能力大小至关重要。该文在精细考虑完整的雨水口结构基础上,对横格条以及顺格条型雨水口进行了133组恒定流试验。通过对篦前水深、不同出流模式下率定的流量系数对比,分析了雨水通过雨水口的下泄过程,提出了相应计算公式,其研究成果可为雨水口设计计算、布设间距、方式等防汛排涝对策研究提供依据。
As an important node between surface runoff and underground drainage pipe flow,the drainage capacity of street inlet is very important.In this paper,133 sets of steady flow tests were carried out on the street inlet of maleic and transverse on the basis of careful consideration of the complete structure of street inlet.By comparing the water depth in front of the grate and the flow coefficient determined by different conditions,the paper analyzes the process of rainwater through the street inlet,and accordingly put forward to the calculation formula.The results of this study can provide the basis for the flood control and drainage strategies,such as the street inlet design calculation,the spacing and the way of laying.
作者
顾立忠
赵建坤
张晓雷
宫鹏杰
GU Lizhong;ZHAO Jiankun;ZHANG Xiaolei;GONG Pengjie(Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510635, China;Guangdong Key Laboratory of Hydrodynamics Application Research, Guangzhou 510635, China;Nyingchi Municipal Water Conservancy Bureau, Nyingchi 860000, China;School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, China)
出处
《广东水利水电》
2020年第6期17-21,共5页
Guangdong Water Resources and Hydropower
基金
广东省水动力学应用研究重点实验室开放研究基金(编号:gdsky[2018]003)
广东省科技厅自然科学基金(编号:2016A030313783)
广东省水利科技创新项目(编号:2015-09)。
关键词
城市洪涝
雨水口
泄流能力
流量系数
模型试验
urban flood
street inlet
drainage capacity
flow coefficient
laboratory experiment
