人民长江Issue(2)：32-36,5.DOI:10.16232/j.cnki.1001-4179.2015.02.008
向家坝二纵围堰柔性结构段基础施工技术初探
Study on foundation treatment technology for flexible structure section of stage II longitudinal cofferdam of Xiangjiaba Hydropower Station
李先镇 1沈扬2
作者信息
- 1. 中国长江三峡集团公司向家坝工程建设部，四川宜宾644600
- 2. 三峡发展公司向家坝监理部，云南水富657800
- 折叠
摘要
Abstract
The upstream section of stage II longitudinal cofferdam of Xiangjiaba Hydropower Station is located on deep overbur -den layer with depth of 45 to 62 m.In order to increase the foundation bearing capacity of deep overburden layer and ensure the cofferdam stability under different water levels , the joint and diversion sections of the cofferdam were designed as flexible struc-ture.Then the construction procedure , construction technology and treatment of abnormal situation involved in foundation treat -ment of flexible structure section are introduced in detail .The cofferdam has experienced two flood seasons in 2009 and 2010 , and the safety monitoring result and actual operation situation indicate that the flexible structure is stable , which save investment and accelerate the construction schedule .关键词
深厚覆盖层/基础处理/柔性结构段/向家坝水电站Key words
deep overburden layer/foundation treatment/flexible structure section/Xiangjiaba Hydropower Station分类
天文与地球科学引用本文复制引用
李先镇,沈扬..向家坝二纵围堰柔性结构段基础施工技术初探[J].人民长江,2015,(2):32-36,5.
