排桩与地下连续墙在逆作法施工中的应用与对比分析

APPLICATION AND COMPARATIVE ANALYSIS OF ROW PILES AND DIAPHRAGM WALL IN TOP-DOWN CONSTRUCTION

结合深基坑工程案例,分析逆作法施工采用排桩与地下连续墙做基坑围护墙体的技术特点。在控制基坑和周边环境方面,采用“两墙合一”技术的能力很强,采用“桩墙合一”技术的能力居中,而采用“桩墙分离”技术的能力相对较弱。实际施工中可根据基坑特点、周边环境和经济效益等因素综合考虑选用。

Combined with the deep foundation pit engineering case,the technical characteristics of the top-down construction method using row piles and underground continuous walls as the foundation pit retaining wall are analyzed and compared.In terms of controlling the foundation pit and surrounding environment,the ability to adopt the"two-wall integration"technology is very strong,the ability to adopt the"pile-wall integration"technology is intermediate,and the ability to adopt the"pile-wall separation"technology is relatively weak.In actual construction,it can be selected according to factors such as foundation pit characteristics,surrounding environment and economic benefits.