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我市三元桥改建工程和安墩东排涝站扩建工程,分别位于扬宁公路上和安墩套闸东侧,附近为工厂和居民住房稠密区,工场范围有限;加之地基为粉砂土,基坑如按1:3以上的边坡开挖,势必危及周围建筑物的安全和加大拆迁。我们在进行这两项工程施工时,为解决这一矛盾,在城建和人防部门地下工程施工实践的启发下,采用简易针井排水施工,并自制了设备,投放工地使用,取得了较满意的效果。
The reconstruction project of Sanyuan Bridge in our city and the expansion project of Andun East Drainage Station are located on the side of Yangning Highway and east of Andun Sluice. In the vicinity of the plant and residential buildings are densely populated areas with a limited scope of workshops. In addition, the foundation is silt sand, Excavation of the foundation pit by more than 1: 3 slope will inevitably endanger the safety of surrounding buildings and increase the demolition. In carrying out the construction of these two projects, in order to solve this contradiction, under the inspiration of the underground construction in the urban construction and civil air defense departments, using the simple needle well drainage construction, and making the equipment home and using the construction site, we achieved satisfactory results effect.