闸前调蓄湖体型对水闸排涝能力的影响研究  

Study on the Influence of the Shape of Storage Lake in Front of the Sluice on Flow Capacity

作　　者：包纯毅 韩晓维 胡淑静 王斌 BAO Chunyi;HAN Xiaowei;HU Shujing;WANG Bin(Zhejiang Design Institute of Water Conservancy and Hydro-electric Power Co.,Ltd.,Hangzhou 310002,Zhejiang,China;Zhejiang Institute of Hydraulics&Estuary(Zhejiang Institute of Marine Planning and Design),Hangzhou 310017,Zhejiang,China;Zhejiang Provincial Key Laboratory of Estuary and Coast,Hangzhou 310017,Zhejiang,China)

机构地区：[1]浙江省水利水电勘测设计院有限公司,浙江杭州310002 [2]浙江省水利河口研究院(浙江省海洋规划设计研究院),浙江杭州310017 [3]浙江省河口海岸重点实验室,浙江杭州310017

出　　处：《浙江水利科技》2023年第1期53-57,共5页Zhejiang Hydrotechnics

摘　　要：通过对长直河道沿程水力坡降的分析表明,在一定的水力条件下,当断面宽度小于一定尺度后,河道水面比降将突变,容易产生河道上游水位仍然较高,而河道下游水位已经“见底”的现象。为保证闸前来水充分,同时避免闸前冲刷,可以适当扩大闸前河道规模或者设置调蓄湖。利用平面二维数学模型,对比分析了6种调蓄湖体型对排涝能力的影响,推荐闸前设置橄榄型调蓄湖,可以有效避免闸前河道冲刷、提高水闸的排涝能力。推荐的橄榄型调蓄湖计算公式和方法可供规划设计参考应用。Through the analysis of the drainage mechanism of the plain river network drainage sluices,the main factors affecting the flow capacity are insufficient hydrodynamic force in front of the sluices and insufficient matching of the scale of the river channels.In order to avoid erosion of the river in front of the sluice and improve the flow capacity,the river in front of the sluice should be equipped with a storage lake.The analysis of the hydraulic slope along the long straight river channel shows that the water surface slope in the river channel has a certain relationship with the river width and the drainage flow.Combined with a two-dimensional mathematical model,this paper compares and analyzes the influence of six types of storage lakes on flow capacity.It is recommended that olive-type storage lakes be set up,which can effectively avoid river erosion in front of the sluice and improve flow capacity.The recommended olive-shaped storage lake calculation formulas and methods can be used in planning and design applications.

关 键 词：排涝闸 排涝能力 调蓄湖 水位 

分 类 号：TV66[水利工程—水利水电工程]