Design of Dewatering Scheme for Deep Foundation Pit in Construction Engineering and Analysis of Settlement Deformation Law
To ensure the safe construction of foundation pits,this article combines the basic information of foundation pit engineering,first car-ries out the design of its dewatering scheme,and based on the monitoring results of foundation pit settlement deformation,grasps the settlement deformation law through deformation prediction methods.The analysis results indicate that it is necessary to carry out the design of the founda-tion pit dewatering plan.Based on the actual engineering situation,the dewatering measures should be designed as light well point dewatering,and during the dewatering process,it should be ensured that the water level after dewatering is 1m lower than the design pit bottom elevation.After the later stage of dewatering,the water level monitoring results show that the fluctuation range of the water level relative to the design wa-ter level after dewatering is-0.154～0.328m,which meets the regulatory requirements;Meanwhile,through deformation prediction,the set-tlement deformation of the foundation pit shows a clear convergence trend,and the final predicted settlement value is between 18.34 and 21.25mm,which is also within the range of deformation control values,indicating that the settlement deformation control of the foundation pit is good,accumulating experience for similar projects.
Deep foundation pitPrecipitation planSettlement deformationDeformation prediction
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