施工导流在占化水电站坝址比选中的作用  

The Role of Construction Diversion in Comparison and Selection of Dam Site for Chiem Hoa Hydropower Station

作　　者：刁树广[1] 蒋树强 

机构地区：[1]广西电力工业勘察设计研究院,广西南宁530023 [2]广西浩天电力发展集团有限公司,广西南宁530023

出　　处：《红水河》2010年第1期33-38,共6页Hongshui River

摘　　要：占化水电站为低水头水电站,与上一梯级宣光水电站相距仅约24 km,可供作为坝址的场地相对有限,在所拟选的几个坝址中,地形、地质、主体工程枢纽布置、施工总布置场地等条件区别不大,最优的2个比选坝址的工程总投资相差不到百分之一,一期施工导流的土石子围堰成为坝址比选关键的决定因素之一。文章简单介绍坝址比选的情况。Chiem Hoa Hydropower Station with a low water head is only about 24kin away from the upper cascade Tuyen Quang Hydropower Station. There is limited place to build dam for the station. Proposed dam sites have similar topographic and geologic conditions for main works arrangement and construction general layout. The difference of total investment between the best two options is less than 1%. The earth-rock filled cofferdam of the 1st phase construction diversion plays a key role to determine the dam site. The article presents the process of comparison and selection of dam site for the station.

关 键 词：坝址比选 施工导流 土石子围堰 占化水电站 

分 类 号：TV551.6[水利工程—水利水电工程]