深基坑支护设计选型研究及典型实例分析  

Deep Foundation Pit Retaining Design Selection and Research and the Typical Analysis of Project Example

作　　者：谢琳 郭典塔 XIE Lin;GUO Dianta(Guangdong Architectural Design&Research Institute Co.,Ltd.Guangzhou 510010,China)

机构地区：[1]广东省建筑设计研究院有限公司,广州510010

出　　处：《广东土木与建筑》2022年第5期52-55,63,共5页Guangdong Architecture Civil Engineering

摘　　要：针对广州市天河区某项目处在复杂地质的岩土工程特性和工程周边环境,详细介绍了在此类地区深基坑支护设计方案选型分析,提出可采用桩撑、桩锚、喷锚等组合支护体系,止水帷幕可采用搅拌桩和旋喷桩组合体系;同时针对性提出在此类情况下应采用刚度大,对周边变形控制有利的支护结构体系,为深基坑的设计与稳定性控制提供理论指导,为基坑工程实施中起到参考作用。According to the geotechnical engineering characteristics of a project in Tianhe District,Guangzhou and the surrounding environment of the project,the selection analysis of deep retaining and protection for excavtions design scheme in this area is introduced in detail,and the combined support system of pile support,pile anchor and shotcrete anchor is proposed and the water stop curtain can adopt the combined system of mixing pile and rotary jet grouting pile;At the same time,it is pointed out that in such cases,the support structure system with large stiffness and favorable control of peripheral deformation should be adopted,It provides theoretical guidance for the design and stability control of deep retaining and protection for excavtions,and plays a reference role in the implementation of foundation pit engineering.

关 键 词：复杂环境 复杂地质 深基坑支护 支护结构体系 

分 类 号：TU476[建筑科学—结构工程]