Theoretical Calculation and Prediction of Settlement Caused by Foundation Pit Precipitation
To effectively grasp the deformation law of foundation pit settlement,based on the geological conditions of the foundation pit,combined with the principle of effective stress,the layered comprehensive method is used to calculate the theoretical value of settlement caused by foundation pit precipitation;Secondly,based on the on-site settlement monitoring data during the excavation construction process,the accuracy of theoretical calculation values is supported by deformation prediction.The analysis results show that in the theoretical calculation results of foundation pit settlement,the settlement theoretical calculation values are to varying degrees smaller than the settlement monitoring values,and the settlement values have a continuous decreasing characteristic as the distance from the center of the drainage well increases;In the research results of predicting foundation pit settlement,the average relative error of the predicted results is between 2.02% and 2.09% ,indicating that ILSO-RVM-CT has strong predictive ability in predicting foundation pit settlement deformation,and the prediction results show that the settlement deformation of foundation pit will continue to increase at a small rate,indicating that the settlement deformation of foundation pit tends to be stable.
excavation dewateringtheoretical calculationson site monitoringdeformation prediction
NETL
NSTL
万方数据
