长洲水利枢纽工程外江厂房围堰布置与结构优化设计

Layout of Power House's Cofferdam on Outer River and Optimal Structure Design for Changzhou Hydraulic Project

外江厂房围堰在大围堰围护下施工,占压已建闸坝工程及利用厂房挡土,在满足外江过流和库区临时淹没的前提下,不影响通航,妥善解决土石围堰防冲刷问题,合理利用工程土石料,节省工程投资。

Power house＇s cofferdam on outer river is built under the protection of large cofferdam, occupying hydraulic structures that have been built and retaining soil with power house. The construction of the cofferdam facilitates flow let through the outer river and temporarily inundates reservoir area without affecting navigation. The problem of scour prevention has been solved for the earth-rock cofferdam, and project investment has been saved for earth-rock materials are put into rational use.