摘要
在城市地铁建设中,往往会遇到各种地下不明障碍物,因此在施工前必须对这些障碍物进行及时有效地清理。针对在邻近运营地铁站下的粉细砂层中进行冻结清障施工时具有较大的风险,本文以武汉轨道交通十二号线园团区间为依托,系统介绍了在邻近运营地铁车站下的粉细砂地层条件中,采用竖井开挖和冻结法进行车站部分围护结构破除施工的相关技术,总结了冻结法清障施工过程对运营车站的风险,并介绍了在本工程中所采用的自动监测方法以及相应的风险控制措施。在此基础上,结合各项监测数据总结了冻结法清障施工风险控制措施的控制效果,为类似工程提供有益参考。
In the construction of urban subway,there are often various unknown obstacles in the ground,so these obstacles must be cleaned up timely and effectively before entering into the construction stage.In view of the great risk when the silty sand stratum is in the silty sand stratum adjacent to the operating subway station,this paper,based on the Yuantuan section of Wuhan Rail Transit Line 12,systematically introduces the related technologies of shaft excavation and freezing method to break the retaining structure of the station in the silty sand stratum adjacent to the operating subway station,summarizes the risks of freezing method to the operating subway station,and introduces the automatic monitoring methods and corresponding risk control measures adopted in this project.On this basis,combined with various monitoring data,the control effect of risk control measures in the construction of obstacle clearing by freezing method is summarized,which can provide a useful reference for similar projects.
作者
游正军
李雄彬
杨俊
You Zhengjun;Li Xiongbin;Yan Jun(Wuhan Metro Group Co.,Ltd.,77 Happiness Avenue,Wuhan 430077,China;National Center of Technology Innovation for Digital Construction,Huazhong University of Science and Technology,Wuhan 430074,China;School of Civil&Hydraulic Engineering,Huazhong University of Science&Technology,Wuhan 430074,China)
出处
《土木建筑工程信息技术》
2023年第2期62-67,共6页
Journal of Information Technology in Civil Engineering and Architecture
基金
国家自然科学基金重大项目(编号:52192664)。
关键词
运营地铁车站
冻结法
清障施工
风险控制
自动监测
Operate Subway Stations
Freezing Method
Obstacle Clearing Construction
Risk Control
Automatic Monitoring
