浅埋大跨度施工技术在地铁车站施工中的运用  

Application of Shallow Buried Large Span Construction Technology in Metro Station Construction

作　　者：李轲 Li Ke(PowChina Railway Construction Investment Group Co.,Ltd.,Beijing 100060,China)

机构地区：[1]中电建铁路建设投资集团有限公司,北京100060

出　　处：《科学技术创新》2022年第34期153-156,共4页Scientific and Technological Innovation

摘　　要：地铁车站建设中,隧道跨度越大,结构稳定性越差,为保证现场施工安全和工程结构安全,必须采取相应的支护措施。以某地铁车站工程为例,分别介绍了车站暗挖段的超前支护、导洞开挖、主体结构混凝土浇筑与防水处理等环节施工要点。在施工期间,对车站工程周边的地面沉降和地下管线沉降进行了观测。结果表明,地面沉降速率和地下管线沉降量均在允许范围之内,确保了该工程顺利交付验收。In the construction of subway stations, the larger the tunnel span, the worse the structural stability. In order to ensure the safety of site construction and engineering structure, corresponding support measures must be taken. Taking a subway station project as an example, this paper introduces the construction points of the advanced support, the excavation of the pilot hole, the concrete pouring of the main structure and the waterproof treatment of the underground excavation section of the station. During the construction period, the ground subsidence and underground pipeline subsidence around the station project were observed. The results show that the land subsidence rate and underground pipeline subsidence are within the allowable range, which ensures the smooth delivery and acceptance of the project.

关 键 词：超前支护 暗挖法 ECB防水板 沉降观测 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]