三轴水泥搅拌桩组合高压旋喷桩形成止水帷幕的应用  

The application of waterproof curtain formed by triaxial cement mixing pile and high-pressure chemical churning pile

作　　者：叶团进 

机构地区：[1]福建省九龙建设集团有限公司,福建厦门361008

出　　处：《福建建筑》2013年第9期67-69,共3页Fujian Architecture & Construction

摘　　要：本文介绍的工程实例具有一定的特殊性,本工程的基坑支护止水是在基坑开挖至一定程度后发现基坑内出现多处大管涌现象,现场的水文地质情况与原岩土勘察报告存在较大出入的情况下所采取的止水补强措施。本文阐述了将三轴水泥搅拌桩用于深基坑止水,并在局部无法采用三轴水泥搅拌桩处采取高压旋喷桩进行止水两种止水帷幕组合进行截水的应用。两种措施组合形成的止水帷幕完成后止水效果良好并且能够保证基坑支护体系的稳定。The project case described in this article has a certain degree of particularity. In this article the supporting system used in the foundation pit means the sealing and strengthening measure to take when multiple serious piping phenomena are found when deep foundation pit is excavated to a certain extent, mo reover, the hydrogeologieal conditions of the site is quite different from the original geotechnical investigation report. This article illustrated on how to use the triaxial cement mixing pile to prevent water in deep excavation and the application of two kinds of section combinations in high - pressure chemical churning pile as the waterproof curtain when the triaxial cement mixing pile cannot be used partly. These two measures of curtains for cutting off water in deep - cement - mixing piles have been proved to be highly effective by practice and to ensure that the supporting system used in the foundation pit is stable.

关 键 词：三轴水泥搅拌桩 高压旋喷桩 止水帷幕 

分 类 号：TV551.4[水利工程—水利水电工程]