道路雨水口泄流效率关键影响因素研究  

Study on key influencing factors of drainage efficiency of street inlets

作　　者：段园煜 郭帅 王秋萍 陈国芬[3] 吴众华[4] 陈岚 DUAN Yuanyu;GUO Shuai;WANG Qiuping;CHEN Guofen;WU Zhonghua;CHEN Lan(Department of Architectural Engineering,Hefei University,Hefei 230601,China;College of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Power-China Huadong Engineering Corporation Limited,Hangzhou 310014,China;Department of Civil Engineering,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]合肥学院城市建设与交通学院,安徽合肥230601 [2]合肥工业大学土木与水利工程学院,安徽合肥230009 [3]华东勘测设计研究院,浙江杭州310014 [4]浙江大学建筑工程学院,浙江杭州310058

出　　处：《河海大学学报（自然科学版）》2022年第1期7-12,共6页Journal of Hohai University(Natural Sciences)

基　　金：安徽省自然科学基金(1908085QE211);安徽高校自然科学研究项目(KJ2020A0664)。

摘　　要：为了研究道路坡度(横坡1%-2%、纵坡0.3%-5.0%)和径流量(0-70 m^(3)/h)对雨水口泄流效率的影响,搭建了比例为1∶1的试验平台,分析不同工况下的泄流效率。试验结果表明:径流量越大,纵坡越大,泄流效率越低;横坡每提高0.5%,雨水口的泄流效率约提高10%。将孔口出流方程对数据进行拟合所得公式与其他文献提出的经验公式进行对比,结果显示:对标准型平篦式雨水口,前者的拟合效果更好。基于拟合公式,提出雨水口布置的设计思路,推导了布置间距的计算公式,并将其应用于雨水口布置间距的优化设计。In order to study the influence of road slope(1%-2%in cross slope and 0.3%-5.0%in longitudinal slope)and runoff of 0-70 m^(3)/h on the inlet efficiency,tests were carried out on a 1∶1 platform.Experimental results show that the inlet efficiency decreases with the increasing of flow rate as well as the longitudinal slope.However,when the cross slope increases 0.5%,the efficiency increases about 10%.In addition,experimental data were fitted with the orifice equation.Comparison was conducted between the fitting formula and previous empirical formulas,and the results show that the proposed formula gives better results on the standard flat-grate street inlet.Based on the fitting formula,a new method for the street inlet design is proposed for the future urban road construction and formulas for determining the inlet spacing are deduced,which were adopted for the optimal design of inlet spacing.

关 键 词：雨水口 泄流效率 间距 道路工程 

分 类 号：TU992[建筑科学—市政工程]