对迷宫堰的研究

迷宫堰是岸边无闸溢洪道进口采用的堰型之一。其堰顶轴线在平面上形成首尾相接的三角形、梯形或矩形,状似迷宫,故称为迷宫堰,也有人称为锯齿堰。迷宫堰最主要的特点是在不增加泄水建筑物所占河谷宽度的情况下,泄流能力数倍于直线堰,有利于工程布置。无论对于改建还是新建工程,在满足同一前提条件下,用迷宫堰比用其它堰型更为经济。本文详细的介绍了迷宫堰的分类、基本参数、过水流态、影响水力特性的因素及现有研究成果和存在的问题。

Study on the Labyrinth Weir

The labyrinth weir is one of weir type that adopted by the enter-port of the no-spillway on shore.The top axis line of the weir forms a head-to-tail connected triangular,trapezoidal or rectangular in a plane,like a maze,so called it the labyrinth weir,and also known as saw tooth weir.The mainly characters of the labyrinth weir is that on the condition of not increase the occupied width of drainage building to the valley,the discharge capacity is several times as the straight weir,it benefit to the project layout.No matter to remodel or new project,to meet the same premise,use the labyrinth weir is more economical than any other weir type.This paper introduces the labyrinth weir and its classification,basic parameters,water flow form,influence factors of hydraulic characteristics,the existing research results and the existing problem.