城市地铁盾构法区间下穿多种建构筑物施工技术

Construction Technology of Urban Subway Shield Tunneling Section Under-passing Various Structures

本文以济南轨道交通R2线一期工程土建施工七标段历山北路站~二环东路站盾构法区间隧道施工为工程背景,进行地铁盾构法区间隧道在下穿多种城市建构筑物环境下的综合施工技术研究,通过采用试掘进方法,总结形成了一套盾构掘进控制措施,并对沉降机理进行分析进而提出了应对措施,使得建筑物沉降得到有效控制,顺利完成下穿天地亿家所在楼施工。

This paper takes the construction of the shield tunnel between Lishan North Road Station and Erhuan East Road Station in the seventh bid section of the civil construction of the first phase of the Jinan Rail Transit R2 line as the engineering background,and studies the comprehensive construction technology of subway shield-driven section tunnels under the environment of multiple urban structures.Through the use of trial tunneling methods,a set of shield tunneling control measures are summarized and formed,and the settlement mechanism is analyzed and countermeasures are proposed,so that the settlement of the building was effectively controlled and the construction of under-passing Tiandiyijia is successfully completed.