佛山市深厚淤泥、粉砂场地大型复杂基坑支护设计  

Design of Complex Foundation Excavation in a Deep Silt Site in Foshan City

作　　者：赵朋辉 ZHAO Penghui(Foshan Sanlongwan Investment Holdings Limited Foshan 528300,China)

机构地区：[1]佛山三龙湾投资控股有限公司,广东佛山528300

出　　处：《广东土木与建筑》2021年第6期47-49,52,共4页Guangdong Architecture Civil Engineering

摘　　要：介绍佛山市深厚淤泥、粉砂场地某大型基坑支护工程的设计过程。项目实践表明,在不能做内支撑、不能做锚杆(索)、支护措施不能超出红线的情况下,对于一层地下室且周边环境较为简单区段,可采用“放坡+单排管桩+坑内加固土”方式进行支护;对于对于一层地下室且周边环境较为复杂区段,可采用“双排管桩+坑内加固土”方式进行支护;对于两层地下室且周边环境较为复杂区段,可采用“放坡+灌注桩+斜撑+坑内加固土”方式进行支护。This paper mainly introduces the design process of a large foundation excavation project in a deep silt and silt site in Foshan.The practice of this project shows that,in the case of no internal support,no anchor bolt(cable),and no support measures beyond the red line,“slope laying+single row pipe pile+pit reinforced soil”can be adopted for the section with one-storey basement and relatively simple surrounding environment.For the section with one-storey basement and relatively complex surrounding environment,the method of“double row pipe pile+pit reinforced soil”can be adopted for support.For the section with two-storey basement and relatively complex surrounding environment,the method of“slope laying+cast-in-place pile+inclined brace+reinforced soil in pit”can be adopted for support.

关 键 词：基坑支护 悬臂预应力管桩 复合土钉墙 双排管桩 

分 类 号：TU473.2[建筑科学—结构工程]