新建地铁隧道下穿既有地铁施工技术探究

Construction Technology of New Metro Tunnel Undercrossing Existing Metro

为了改善我国城市交通环境,方便人们出行,改善城市交通环境,一些城市建设了大量地铁工程,地铁线路不断增多。在地铁工程建设中,新建地铁车站下既有线路施工的情况时有发生,势必会发生地铁线路换乘或交叉现象。在地铁工程施工期间,受换车地铁和空间限制等各项约束,经常需要穿越地铁线路,施工面临较大风险。为了保证施工作业顺利,保证既有线路结构安全,保证工程不会遭受破坏,不会对既有线路运营造成不良影响。对相关施工技术进行了探讨。

In order to improve China’s urban traffic environment,facilitate people’s travel and improve the urban traffic environment,a large number of subway projects have been built in cities,and the number of subway lines is increasing.In the construction of subway projects,the construction of existing lines under new subway stations happens from time to time,which will inevitably lead to the transfer and crossing of subway lines.During the construction of the subway project,it is often necessary to cross the subway line due to various constraints such as changing trains and space restrictions.The construction is faced with great risks.In order to ensure the smooth construction,ensure the safety of the existing line structure,ensure that the project will not be damaged,and will not cause adverse eff ects on the operation of the existing line,it is necessary to do a good job in the discussion of relevant construction technology.