Application of Well Point Precipitation in Deep Excavation of High Water Level Sandy Soil Soil Layers
Laozhaoniu River Comprehensive Management(Water Diversion)Project is located in Qihe County,Dezhou City,Shandong Province.The main geological conditions are sandy soil,sandy loam soil,clay,and fine sand formations.Due to the fact that Qihe County is only 20 km away from the Yellow River bed and has a high groundwater level,deep foundation pit excavation is required for the construction of structural foundations,with a maximum excavation depth of 8.55 m.During the excavation process,liquefaction and sand flow phenomena may be encountered,and dewatering construction is the key to the excavation of deep foundation pits for structural foundations.From various aspects such as economy and applicability,the combination of tube well point precipitation and light well point precipitation can effectively reduce the groundwater level and prevent liquefaction and sand flow phenomena in deep foundation pit excavation.
well point precipitationhigh water levelsandy soil layerapplication
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