砂质地层下地连墙施工的防塌孔措施  

Collapse Prevention Measures for Diaphragm Wall Construction in Sandy Strata

作　　者：聂大理 欧阳鹏 宾红军 杨东启 倪明辉 NIE Da-li;OU Yang-peng;BIN Hong-jun;YANG Dong-qi;NI Ming-hui(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2022年第9期43-45,共3页Yunnan Water Power

摘　　要：随着地下连续墙施工技术的不断发展,地连墙以刚度大、整体性好、对周围建筑及邻边管线影响较小等优点,成为了建筑施工时保护邻边建筑物的一种优秀工艺。但同时地连墙施工技术也存在一定的缺点,比如在复杂的地质环境下地连墙施工就会受到很大的影响。以广州白云机场三期扩建工程场外排渠改道工程西部排水河地连墙施工为例,针对地连墙在砂质地层下施工存在的塌孔问题提出一些解决措施。With the continuous development of underground continuous wall construction technology,underground continuous wall has become an excellent technology to protect adjacent buildings during construction due to its great rigidity,good integrity and little influence on surrounding buildings and adjacent pipelines.However,the construction technology of the diaphragm wall also has some disadvantages,such as the construction of the diaphragm wall in complex geological environment will be greatly affected.Taking the construction of the diaphragm wall of the third phase expansion project of Guangzhou Baiyun Airport as an example,this paper gives some solutions to the problems of hole collapse existing in the construction of diaphragm wall under sandy strata.

关 键 词：砂质地层 地连墙 塌孔 水泥搅拌桩 解决措施 

分 类 号：TU476[建筑科学—结构工程]