施工方法对结构型式的确定和地铁土建工程造价有决定性影响。施工方法的选定,一方面受沿线工程地质和水文地质条件、环境条件(地面建筑和地下构筑物的现状、道路宽度,交通状况等)、地铁的功能要求、线路平面位置、隧道埋置深度及开挖宽度等多种因素的制约,同时也会对施工期间的地面交通和城市居民的正常生活、工期、工程的难易程 The construction method has a decisive influence on the determination of the structure type and the construction cost of the subway construction project. The selection of construction methods, on the one hand by the engineering geological and hydrogeological conditions along the line, the environmental conditions (the status of ground buildings and underground structures, road width, traffic conditions, etc.), subway functional requirements, the location of the line plane, Excavation width and other factors, but also on the ground during the construction of transport and urban residents of normal life, duration, engineering and easy to process