止、排及降水技术在垃圾填埋场库区开挖中的应用

Application of stop, row and precipitation technology in excavation of landfill site area

深基坑开挖中如何控制地下水是基坑工程成败的关键问题之一。对于沿海、沿江等高水位地区或表层滞水丰富的地区来说,在垃圾填埋场大面积的库区开挖中,为减少地下水对基坑开挖的影响,开挖前需要在四周设置止水帷幕墙,开挖过程中,根据土质和现场地形,采取不同的降水组合方式。

How to control groundwater in excavation of deep foundation pit is one of the key issues for the success or failure of foundation pit engineering. In areas with high water levels such as coastal areas and along rivers, or in areas where there is a lot of surface water retention, during the excavation of a large area of the landfll site, in order to reduce the impact of groundwater on the excavation of foundation pits, it is necessary to set them before excavation. Water curtain wall and excavation process, according to the soil and the site topography, take different combinations of precipitation.