摘要
为研究新建线路上跨既有地铁隧道的施工控制措施的合理性,通过现场试验的方法研究了杭州地铁7号线上跨既有地铁1号线的施工措施,并对隧道变形及地表沉降监测数据等进行了分析。研究表明:1号线运营地铁的道床变形、管片收敛及病害扩张等均得到有效控制;7号线施工过程中的地表沉降、管片姿态等均在允许范围内。研究结果对类似盾构近距离上跨既有地铁隧道施工提供一定的借鉴。
In order to study the rationality of the construction control measures of crossing the existing metro tunnel on the new line,the construction measures of crossing the existing Metro Line 1 on Hangzhou Metro Line 7 were studied by means of field test,and the monitoring data of tunnel deformation and surface settlement were analyzed.The result shows that the track bed deformation,segment convergence and disease expansion of Metro Line 1 have been effectively controlled;The surface settlement and segment attitude during the construction of line 7 are within the allowable range.It can be seen that the research results provide a certain reference for the construction of similar shield short-distance over existing metro tunnel.
作者
刘映晶
闵加正
张文宏
王幸福
刘松
LIU Ying-jing;MIN Jia-zheng;ZHANG Wen-hong;WANG Xing-fu;LIU Song(Zhongtian Construction Group Co. Ltd., Hangzhou 310000, China;Hangzhou General Station of Construction Engineering Quality and Safety Supervision, Hangzhou 310000, China)
出处
《科学技术与工程》
北大核心
2022年第3期1147-1153,共7页
Science Technology and Engineering
关键词
盾构隧道
既有隧道
变形控制
施工安全
shield tunnel
existing tunnel
deformation control
construction safety
