水泥搅拌桩加固始发井端头地基施工技术  

CONSTRUCTION TECHNOLOGY OF CEMENT MIXING PILE STRENGTHENING THE FOUNDATION AT THE END OF STARTING SHAFT

作　　者：唐勇 邓兴桥 熊煊辉 廖军 TANG Yong;DENG Xing-qiao;XIONG Xuan-hui;LIAO Jun(China Construction Fifth Engineering Bureau Co.,Ltd,410004,Changsha,China)

机构地区：[1]中国建筑第五工程局有限公司,长沙410004

出　　处：《建筑技术》2023年第4期459-462,共4页Architecture Technology

基　　金：国家自然科学基金项目(52108364)。

摘　　要：为解决顶管过程中始发井端头因承受较大水平荷载(反力)引起基坑产生较大变形问题,从而影响顶管施工安全和顺利进行,采用水泥土加固始发井端头地基加固技术,提高始发井端头地基土的整体强度,解决了因较大水平荷载(反力)引起的基坑变形问题。总结现场施工过程中水泥土桩加固始发井端头地基加固处理技术,并分析现场施工中常用的无损桩基检测方法优缺点。In order to solve the problem of large deformation of foundation pit caused by large horizontal load(reaction force) at the end of starting shaft in the process of pipe jacking,which affects the safety and smooth progress of pipe jacking construction,the cement soil reinforcement technology is adopted to improve the overall strength of the foundation soil at the end of the starting shaft,and the problem of foundation pit deformation caused by large horizontal load(reaction) is solved.This paper summarizes the treatment technology of cement soil pile strengthening the foundation at the end of the starting shaft in the process of on-site construction,and analyzes the advantages and disadvantages of non-destructive pile foundation testing methods commonly used in on-site construction.

关 键 词：水泥土搅拌桩 始发井 地基加固 无损检测 

分 类 号：TU992[建筑科学—市政工程]