哈尔滨工程大学学报2024，Vol.45Issue(4)：717-721,5.DOI:10.11990/jheu.202201035
高层建筑深基坑支护结构位移动态监测方法
Dynamic monitoring method for displacing deep foundation pit supporting structures in high-rise buildings
摘要
Abstract
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.关键词
高层建筑/深基坑/支护结构/位移/动态监测/影响因素/数据降维/监测方法Key words
high-rise building/deep foundation pit/supporting structure/displacement/dynamic monitoring/in-fluencing factor/data dimensionality reduction/monitoring method分类
测绘与仪器引用本文复制引用
王贵美,周建亮..高层建筑深基坑支护结构位移动态监测方法[J].哈尔滨工程大学学报,2024,45(4):717-721,5.基金项目
国家自然科学面上基金项目(72171224) （72171224）
教育部人文社科规划基金项目(19YJAZH122) （19YJAZH122）
住房和城乡建设部项目(2021-S-048). （2021-S-048）
