In well-point dewatering construction at the current stage,the water level in the dewatering wells may become unstable,affecting the dewatering effect of deep excavations.Therefore,research is conducted on the construction technology of well-point dewatering for deep excavation in high-rise residential buildings.A lightweight well-point dewatering scheme is designed,which selects the 250QJ140-30-22 water pump as the dewatering equipment,matched based on the pump's head characteristics.Dewatering operations are achieved through steps such as excavating dewatering wells and pumping water with the pump,followed by well sealing to complete the well-point dewatering construction for composite deep excavations in super high-rise residential buildings.The results show that the final drawdown of the dewatering well reaches 6.60 m,which is greater than the designed drawdown requirement of the groundwater level,achieving the expected dewatering effect.
关键词
超高层住宅建筑/复合深基坑开挖/井点降水/施工技术
Key words
Super High-rise Residential Building/Composite Deep Excavation/Well-point Dewatering/Construction Technology
维普
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