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1 工程概况中环线西北段A 2．7-2标沪嘉立交桥工程在桥梁承台基础施工时,遇到地下污水总管。该污水管投入使用已2年多,涉及范围广。鉴于规划、现有管线及施工工期等因素,该污水管无法搬迁。再则桥梁施工和竣工后不能满足最小维修通道的条件, 所以需在桥梁承台范围对管道进行加固保护,使其不仅在桥梁施工中不受损伤,而且保证自身结构的可靠性和耐久性。本工程污水管道属苏州河支流污水截流工程
1 Project Overview A 2.7-2 standard Hujiahe overpass project in the northwestern segment of Central Link meets the underground sewer when it is under construction of bridge cap. The sewage pipe put into use more than two years, involving a wide range. Due to factors such as planning, existing pipelines and construction period, the sewer pipe can not be relocated. Furthermore, the bridge can not meet the minimum maintenance conditions after construction and completion. Therefore, it is necessary to reinforce and protect the pipeline in the area of the bridge cap so that it will not be damaged during the bridge construction, but also ensure the reliability and durability of its structure. The sewage pipe of the project is a tributary of the Suzhou Creek Sewage Interception Project