近地铁地下广场基坑咬合桩与HC组合型钢支撑施工  

Construction of Interlocking Piles and HC Composite Steel Supports for the Foundation Pit of the Underground Square Near the Subway

作　　者：王瓅玮 陆斌 WANG Li-wei;LU Bin(China Energy Engineering Corporation Limited,Beijing 100022,China;China Energy Engineering Group Zhejiang Thermal Power Construction Co.Ltd.,Hangzhou 310020,China)

机构地区：[1]中国能源建设股份有限公司,北京100022 [2]中国能源建设集团浙江火电建设有限公司,杭州310020

出　　处：《工程建设与设计》2025年第2期19-21,共3页Construction & Design for Engineering

摘　　要：临近地铁地下广场基坑开挖前,首先结合基坑周边建设条件、气候环境和地铁营运安全对基坑开挖中的施工重难点进行分析,同时提出针对性控制措施。由于项目基坑分布面积大,对大面积基坑采用咬合桩支护整体开挖的方法,并针对项目特点制定基坑开挖施工安全保护措施。此外,为保护地铁运行安全,对临近地铁线路区域采取HC组合型钢支撑的支护措施,分阶段推进支护、开挖与结构施工。In the excavation process of the underground square foundation pit close to the subway,the construction difficulties in the foundation pit excavation should be analyzed based on the construction conditions around the foundation pit,climate environment and subway operation safety,and the targeted control problems should be put forward.Due to the large distribution area of foundation pit,whole area excavation with interlocking pile support method can be applied.Before excavation,protection measures should be formulated according to the characteristics of the project.In addition,in order to protect the safety of subway operation,the support measures of HC composite steel support are adopted in the area near the subway line,the support,excavation and structural construction are carried out in stages.

关 键 词：咬合桩 HC组合形钢支撑 临近地铁地下广场 基坑开挖 

分 类 号：TU753.1[建筑科学—建筑技术科学]