高层建筑深基坑支护结构位移动态监测方法OA北大核心CSTPCD

The monitoring accuracy of displacement trajectory,displacement rate,and displacement time change is poor when monitoring the displacement of deep foundation pit-supporting structures in high-rise buildings.To solve this problem,this study investigates a dynamic monitoring method for tracking displacement in such structures.The influencing factors of support structure displacement are comprehensively analyzed to identify key indices.Founda-tion pit data are then collected,and a dataset is created to reduce dimensionality.The objective function is calcu-lated,and a time series model is established by integrating the impact indices.A dynamic variable matrix is estab-lished on the basis of the model calculations.By analyzing the matrix,the statistics of the dynamic monitoring data are obtained,thereby completing the dynamic monitoring of the support structure.The experimental results show that the monitoring error of the displacement trajectory is 0.1.The displacement rate is kept below 0.9 mm/d,which is consistent with the actual rates.The longitudinal displacement reaches 202 mm,conforming to the actual settlement.This method can be effectively applied to the dynamic displacement monitoring of deep foundation pit-supporting structures in high-rise buildings.It also provides important technical support for ensuring the stability and safety of high-rise buildings.