Research on Construction Technology of Well-point Dewatering for Deep Excavation in High-rise Residential Buildings
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.
Super High-rise Residential BuildingComposite Deep ExcavationWell-point DewateringConstruction Technology