Tilt and Settlement Monitoring of High-Rise Buildings Using GNSS Precise Point Positioning and Seasonal Ground Deformation

被引：0

作者：

Guo W. ^{[1
]}

Wang G. ^{[2
]}

Bao Y. ^{[1
]}

Zhang M. ^{[1
]}

Sun X. ^{[3
]}

Zhao R. ^{[3
]}

Gan W. ^{[4
]}

机构：

[1] Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing

[2] Department of Earth and Atmospheric Sciences, University of Houston, 77204, TX

[3] Tianjin Key Laboratory of Soft Soil Characteristic and Engineering Environment, Tianjin Chengjian University, Tianjin

[4] State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing

来源：

Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2020年 / 45卷 / 07期

关键词：

GNSS precise point positioning; Seasonal deformation model; Tall buildings monitoring; Tilt and settlement;

D O I：

10.13203/j.whugis20190015

中图分类号：

学科分类号：

摘要：

This paper introduces a method which utilizes global navigation satellite system (GNSS) based precision point positioning (PPP) for conducting long-term tilt and settlement monitoring of high-rise buildings in North China. Two-year continuous GNSS observations from two high-rise buildings near a deep foundation pit in Beijing are used for the case study. The method comprises four steps: ① Calculating the geocentric coordinates (XYZ) of the GNSS antenna with respect to a global reference frame (e.g., IGS08) with the PPP method; ② transforming the geocentric coordinates to a regional reference frame-the North China reference frame (NChina16); ③ converting the geocentric XYZ coordinates to a station-centric East -North-Up (ENU) coordinates; ④ removing seasonal ground-surface deformation from the ENU time series and restoring the true displacements (tilt and settlement) of the building. Experimental result indicates that the PPP method is able to achieve 2-3 mm horizontal accuracy(root mean square error) and 6-9 mm vertical accuracy (root mean square error)for 24-hour continuous observations in North China. The combination of PPP, NChina16, and the North China seasonal ground deformation model can perform millimeter-accuracy, near-real time, and long term static structural health monitoring of high-rise buildings and other large-scale infrastructure projects in North China. © 2020, Editorial Board of Geomatics and Information Science of Wuhan University. All right reserved.

引用

页码：1043 / 1051

页数：8

共 25 条

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