四排桩支护结构在下临地铁隧道的深基坑支护设计研究  

Study on the supporting design of deep foundation pit with four-row piles structure next to subway tunnel downwards

作　　者：刘金华 谭海林 肖豪 黄明艳 贺敬哲 Liu Jinhua;Tan Hailin;Xiao Hao;Huang Mingyan;He Jingzhe(Hunan Geological Exploration Institute of China Chemical Geology and Mine Bureau,Changsha,Hunan,410083,China;Hunan Chemical Geological Engineering Survey Institute Co.Ltd,Changsha,Hunan,410004,China)

机构地区：[1]中化地质矿山总局湖南地质勘查院,湖南长沙410083 [2]湖南化工地质工程勘察院有限责任公司,湖南长沙410004

出　　处：《化工矿产地质》2024年第2期173-178,共6页Geology of Chemical Minerals

基　　金：湖南化工地质工程勘察院有限责任公司研发项目多排桩在下临地铁的深基坑支护设计中的应用研究。

摘　　要：以长沙某下临地铁的深基坑支护工程项目为依托,运用四排桩支护结构进行支护设计,解决了悬臂式支挡结构在嵌固深度受限时造成抗滑和抗倾覆力不足的相关问题,并通过理论分析和数值模拟论证了这种多排桩支护体系的安全性、可行性、经济性,以期为相关工程提供参考。Based on a deep foundation pit support project in Changsha,which is next to the subway downwards,the fourrow pile support structure is used for support design,which solves the related problems of insufficient anti sliding and anti overturning forces caused by the cantilever support structure when the embedded depth is limited.Through theoretical analysis and numerical simulation,the safety,feasibility and economy of this multi-row pile support system are demonstrated,and the conclusions obtained are expected to provide reference for related projects.

关 键 词：下临地铁隧道 四排桩支护结构 多排桩支护理论 基坑支护 

分 类 号：TU942[建筑科学—建筑技术科学]