低水头水闸下游流态及消力池长度计算分析

Calculation and Analysis of the Downstream Flow Pattern and the Length of the Stilling Basin of Low Head Sluice

在分析低水头水闸泄流下游流态的基础上,对水闸下游消力池长度的计算方法进行较系统地研究。研究成果包括了水闸的3种闸门开启运行方式的下游消力池长度计算:①水闸最大泄洪流量Qm运行时,闸门为局部开启控泄运行;②闸门全开、Qm运行时,水闸为自由出流运行;③闸门全开、Qm运行时,水闸为淹没出流运行。该研究成果基本涵盖了低水头水闸下游消力池长度的计算方法,可供工程设计和运行参考。

Based on the analysis of the downstream flow pattern of the low head sluice,the calculation method of the length of the stilling basin of the sluice downstream is studied systematically.The research results include the calculation of the length of downstream stilling basin of three sluice opening operation modes:1)when the maximum discharge Qm of the sluice is running,the sluice is still partially opened to control the discharge;2)when the gate is fully open and Qm runs,the gate runs with free flow;3)when the gate is fully open and Qm runs,the sluice runs under submerged outflow.The research results of this paper basically cover the calculation methods of the length of the downstream stilling basin of the low head sluice,which can be used for reference in engineering design and operation.