Dynamic monitoring method for displacing deep foundation pit supporting structures in high-rise buildings

Guimei WANG; Jianliang ZHOU

doi:10.11990/jheu.202201035

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Dynamic monitoring method for displacing deep foundation pit supporting structures in high-rise buildings

更新时间：2025-09-01

- Dynamic monitoring method for displacing deep foundation pit supporting structures in high-rise buildings
- Journal of Harbin Engineering University Vol. 45, Issue 4, Pages: 717-721(2024)
- 作者机构：
  
  1.中国矿业大学力学与土木工程学院, 江苏徐州 221116
  2.泛城设计股份有限公司, 浙江杭州 310015
- 作者简介：
- 基金信息：
- DOI：10.11990/jheu.202201035
  CLC： P231
- Received：14 January 2022，
  
  Online First：31 January 2024，
  
  Published：05 April 2024
- 稿件说明：
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Guimei WANG, Jianliang ZHOU. Dynamic monitoring method for displacing deep foundation pit supporting structures in high-rise buildings[J]. Journal of Harbin Engineering University, 2024, 45(4): 717-721.
DOI：

Guimei WANG, Jianliang ZHOU. Dynamic monitoring method for displacing deep foundation pit supporting structures in high-rise buildings[J]. Journal of Harbin Engineering University, 2024, 45(4): 717-721. DOI： 10.11990/jheu.202201035.

摘要

针对高层建筑深基坑支护结构位移监测时

位移轨迹、位移速率以及位移时间变化监测准确性较差问题

本文研究了高层建筑深基坑支护结构位移动态监测方法。对支护结构位移影响因素进行具体分析

生成了影响指标; 再对基坑数据进行采集

建立数据集并进行降维处理; 计算获取目标函数

结合影响指标建立时间序列模型

依据对模型的计算建立动态变量矩阵; 通过对矩阵的计算获取动态监测数据的统计量

完成支护结构的动态监测。研究结果表明: 运用该方法进行监测时

位移移动轨迹监测误差为0.1

位移速率保持在0.9 mm/d以下

且与实际位移速率基本一致

纵向位移量达到202 mm

且与实际沉降量一致。本文方法能够有效应用于高层建筑深基坑支护结构的位移动态监测

为保障高层建筑的稳定性和安全性提供重要的技术支持。

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. Foundation pit data are then collected

and a dataset is created to reduce dimensionality. The objective function is calculated

and a time series model is established by integrating the impact indices. A dynamic variable matrix is established 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.

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