新建地铁与新建建筑穿插施工引起不均匀沉降处理措施

Treatment Measures for Uneven Settlement Caused by Interlaced Construction of New Subways and New Buildings

随着城市地铁轨道交通的发展,新建地铁线路不可避免的出现下穿建筑的情形。结合地铁与新建建筑交叉施工实际案例,使用先浅基础施工后深基础施工、先高层建筑施工后低层建筑的施工顺序进行下穿施工,施工中先施工的浅基础高层建筑出现不均匀沉降,针对新建建筑出现的楼座不均匀沉降设计新型地基加固的方案,顺利完成工程建设,研究成果可以为类似工程提供设计参考。

With the development of urban subway and rail transit,it is inevitable that new subway lines will pass through buildings.Based on the actual case of cross construction between subway and newly built buildings,the construction sequence of underpass construction is used,which includes shallow foundation construction followed by deep foundation construction,and high-rise building construction followed by low-rise building construction.The shallow foundation high-rise building that was constructed first experienced uneven settlement during construction.A new foundation reinforcement plan was designed to address the uneven settlement of the newly built building base,and the project construction was successfully completed.The research results provide design reference for similar projects.