土石围堰高压旋喷桩防渗施工技术应用  

Application of anti-seepage construction technology of high-pressure rotary jet grouting pile in earth-rock cofferdam

作　　者：陈浩 CHEN Hao(The Fourth Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Chengdu 610213,China)

机构地区：[1]中交四航局第四工程有限公司,四川成都610213

出　　处：《水运工程》2021年第12期112-114,149,共4页Port & Waterway Engineering

摘　　要：针对犍为航电枢纽一期一段土石围堰汛期挡水问题,为确保土石围堰为汛期施工提供无水施工条件,在保证工程施工质量、安全的前提下,进行一期一段土石围堰高压旋喷桩防渗板的研究,通过施工过程中采用的高压旋喷桩防渗板墙双重管法的施工工艺、试验与分析,确定施工工艺及最佳施工参数,并对土石围堰高压旋喷桩防渗施工优势进行总结分析,为同类工程提供借鉴。To ensure the ability of retaining water and anti-seepage of earth-rock cofferdam and the construction quality and safety of the project,we adopt the high-pressure rotary jet grouting anti-seepage slab wall in the first section of the earth-rock cofferdam of Qianwei navigation-power junction project in the Minjiang River.According to the research,test and analysis on the construction technology of the double pipe method of the high-pressure jet grouting pile anti-seepage sheet wall,we determine the construction technology and optimal construction parameters.Furthermore,we analyze the advantages of the high-pressure jet grouting pile anti-seepage construction in the earth-rock cofferdam to provide reference for similar projects.

关 键 词：土石围堰 高压旋喷桩 防渗板墙 最佳施工参数 犍为航电枢纽 

分 类 号：U615[交通运输工程—船舶及航道工程]