一种新的旋喷桩止水效果检测方法  

A new detection method for water cutoff effect of jet grouting piles

作　　者：陶云 黄兴 TAO Yun;HUANG Xing(No.2 Engineering Co.,Ltd.of CCCC Third Harbor Engineering Co.,Ltd.,Shanghai 200120,China)

机构地区：[1]中交三航局第二工程有限公司,上海200120

出　　处：《水运工程》2022年第9期215-220,共6页Port & Waterway Engineering

摘　　要：针对高压旋喷桩止水帷幕止水效果的检测问题,以某工程高压旋喷桩止水帷幕为例,研究国内与俄罗斯高压旋喷桩施工方式的差异及止水帷幕渗透系数检测方法。提出“新二重管法”,用于特定环境和复杂条件下施工。用钻孔取芯的方法检测高压旋喷墙的渗透系数K。施工方法和检测计算公式可操作性强、可靠性高。新的旋喷桩止水效果检测方法能反映高压旋喷墙的整体质量、有效检查高压旋喷墙的渗透系数、综合评价止水帷幕止水效果。This paper is to detect the effect of the water cutoff curtain with high-pressure jet grouting piles.Taking the water cutoff curtain with high-pressure jet grouting piles in a project as an example,this study explores the difference in the construction methods of high-pressure jet grouting piles in China and Russia and the detection method of the permeability coefficient of the water cutoff curtain.The“new double-pipe method”is proposed for construction under specific environment and complex conditions.The permeability coefficient K of the high-pressure jet grouting wall is detected by the method of drilling and coring.The construction method and detection calculation formula have the characteristics of strong operability and reliability.The new detection method for the water cutoff effect of jet grouting piles can reflect the overall quality of the high-pressure jet grouting wall,effectively check the permeability coefficient of the high-pressure jet grouting wall,and comprehensively evaluate the effect of the water cutoff curtain.

关 键 词：高压旋喷桩 止水帷幕 渗透系数 止水效果 船坞工程 

分 类 号：U656[交通运输工程—港口、海岸及近海工程]