监测反馈技术在地铁盾构施工塌陷预警中的应用  

Application of Monitoring Feedback Technology to the Subway Shield Construction Failures Early Warning

作　　者：刘玉勇[1] 姚晓明[1] 王斌[1] 

机构地区：[1]中铁西南科学研究院有限公司,四川成都611731

出　　处：《施工技术》2016年第S1期447-450,共4页Construction Technology

摘　　要：盾构法施工在城市地铁隧道建设中正扮演越来越重要的角色。我国上海、广州、北京等城市已经采用盾构法成功实施了不少工程,成都的地质情况与上述城市截然不同,成都地区以富水砂卵石地层为主,易诱发地面沉降、塌陷,且沉降存在滞后性和突发性,可借鉴的经验不多,结合两次险情案例分析成都富水砂卵石地层土压平衡盾构施工监测反馈技术问题,通过监测反馈技术在地铁盾构施工塌陷预警中的应用,以期对类似地层的盾构安全施工提供借鉴和参考。Shield tunnel construction in urban subway tunnel construction is playing an increasingly important role. Shanghai,Guangzhou,Beijing and other cities in China have adopted successfully implemented many projects of shield method,geological situation very different from the city of Chengdu,Chengdu area is given priority to with water sand pebble stratum,easily induced ground subsidence,collapse,settlement and lag and sudden,can draw lessons from the experience of the few,combined with two danger case analysis Chengdu water rich sand pebble formation of earth pressure balance shield construction monitoring and feedback of technical problems,by the monitoring feedback technology application in the subway shield construction failures of collapse and early warning,in order to provide reference in the similar strata shield security construction and reference.

关 键 词：地铁 盾构 富水砂卵石地层 沉降 塌陷 监测反馈技术 

分 类 号：U455.43[建筑科学—桥梁与隧道工程] U231.3[交通运输工程—道路与铁道工程]