苏州工业园区新建地下污水主干线为钢筋混凝土管道系 ,直径２．４ｍ ,敷设总长１６８０ｍ ,管底平均埋深５．８ｍ ,原设计采用轻型井点分段疏干地下水 ,开槽明挖敷管方案 ,但考虑到现场沿管道设计走向 ,需穿越园区电力、给排水等浅层地下管线、道路、河道及地面设施 ,且管基坐 The new underground sewage main line in Suzhou Industrial Park is a reinforced concrete pipe system with a diameter of 2.4m, a total length of 1680m and an average buried depth of 5.8m at the bottom of the pipe. The original design adopted light well points to segment the groundwater, However, taking into account the site along the pipeline design direction, the need to cross the park power, drainage and other shallow underground pipelines, roads, waterways and surface facilities, and the tube-based