国内某地铁车站开挖阶段的影响分析  

nfluence Analysis of the Excavation Stage at a Subway Station in China

作　　者：周培欢 张炜煜 段晨 ZHOU Peihuan;ZHANG Weiyu;DUAN Chen(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》2024年第8期109-113,共5页Guangdong Architecture Civil Engineering

摘　　要：在岩层裂隙水发育地段,分析先隧后站隧道盾构施工对地铁车站基坑支护结构的影响;用程序反演计算实时围护结构承载能力,采取基底注浆、基坑周边设置回灌井、增设钢支撑等加固措施。实施结果和监测数据表明,采取的技术措施有效地减缓地连墙变形,保证结构及周边整体安全的情况下顺利完成了工程。通过计算和实测变形结果的对比进一步验证了反演分析和加固的可行性。In areas where rock fissure water is well-developed,the impact of"tunnel first,station later"shield tunneling construction on the support structure of subway station foundation pits was analyzed.Real-time bearing capacity of the retaining structure was calculated using Origin for inversion analysis,and reinforcement measures such as base grouting,setting up recharge wells around the foundation pit,and adding steel supports were implemented.The results of the implementation and monitoring data indicated that the technical measures effectively reduced the deformation of the diaphragm wall and ensured the overall safety of the structure and its surroundings,allowing the project to be completed successfully.A comparison between calculated and measured deformation results further confirmed the feasibility of the inversion analysis and reinforcement measures.

关 键 词：深基坑 先隧后站 反演分析 基坑加固 

分 类 号：TU318.1[建筑科学—结构工程]