大岗山水电站围堰基础防渗墙施工  

Construction of cut-off wall of cofferdam foundation of Dagangshan Hydropower Station

作　　者：林丹 李方平 

机构地区：[1]国电大渡河大岗山水电开发有限公司,四川石棉625409

出　　处：《人民长江》2012年第22期57-59,共3页Yangtze River

摘　　要：以大岗山水电站围堰防渗施工为例,介绍了围堰基础防渗墙无渗漏建造技术和质量控制方法。在施工中,采用了多种施工技术方法,克服了地质条件复杂、卵砾石层厚度大、均一性差等不利地质条件,解决了诸多施工难题,成功建造了无渗漏围堰。为保证基坑干地施工、大坝建基面一次验收合格创造了有利条件。The constructive technology and quality control method of cut-off wall of cofferdam foundation are introduced with the case of seepage control construction of cofferdam of Dagangshan Hydropower Station.Unfavorable conditions such as complex geological condition,large thickness and non-uniformity of gravel layer are overcome by adopting a variety of technologies during the process of construction.In this way,various constructive difficulties are solved to construct the anti-pervious cofferdam successfully.Favorable conditions are created to ensure the acceptance of construction of foundation pit and foundation base of dam.

关 键 词：围堰 漂(块)卵砾石层 无渗漏 大岗山水电站 

分 类 号：TV551.3[水利工程—水利水电工程]