地基雷达干涉测量超高层建筑物动态监测分析  

Dynamic Monitoring and Analysis of Super High-Rise Buildingsby Ground-Based Radar Interferometry

作　　者：周吕 马俊 文学霖 杨飞[3] 章迪[3] 劳建雄 ZHOU Lü;MA Jun;WEN Xuelin;YANG Fei;ZHANG Di;LAO Jianxiong(College of Geomatics and Geoinformation,Guilin University of Technology,Guilin 541006,China;China Railway Siyuan Survey and Design Group Co Ltd,Wuhan 430063,China;School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China;Beijing Key Laboratory of Urban Spatial Information Engineering,Beijing 100038,China)

机构地区：[1]桂林理工大学测绘地理信息学院,桂林市541006 [2]中铁第四勘察设计院集团有限公司,武汉市430063 [3]武汉大学测绘学院,武汉市430079 [4]城市空间信息工程北京市重点实验室,北京市100038

出　　处：《大地测量与地球动力学》2021年第3期301-307,共7页Journal of Geodesy and Geodynamics

基　　金：广西科技计划(桂科AD19110107);武汉市科技计划(2019010702011314);广西自然科学基金(2018GXNSFBA050006);城市空间信息工程北京市重点实验室项目(2020217);国家自然科学基金(41604019);广西高校中青年教师科研基础能力提升项目(2020KY06032)。

摘　　要：以在建的武汉绿地中心为研究对象,建立一套超高层建筑物动态特性监测与分析技术方法。采用该方法获取监测时段内建筑物动态位移时间序列、振幅以及显著性频率等动态特性信息,并基于灰色关联分析法分析楼顶位移与温度变化的相互关系。结果表明,研究时段内楼顶、楼高400 m以及楼高300 m处监测方向的水平位移最大振幅分别为5.12 mm、4.22 mm和3.11 mm,且标准差均为亚mm级;该建筑物固有频率为0.2002 Hz,由于同时受施工震动、温度等影响,导致该大楼还受其他频率影响较明显,如楼顶处监测方向位移时间序列仍受频率0.3082/8.0339 Hz影响较显著;楼顶位移与温度变化时间序列的灰色关联度接近1,表明楼顶位移与温度变化存在较大关系。Taking the Wuhan Greenland Center,which is under construction,as the research object,a set of technical methods for monitoring and analyzing the dynamic characteristics of super high-rise buildings are established.Based on the proposed methods,we extract the dynamic characteristics of the building,such as dynamic displacement time series,amplitude and significant frequency during the monitoring period.We analyze the correlation between the displacement and temperature change at the roof of the building based on grey relational analysis method.The results show that the maximum horizontal amplitudes at the top,400 m height and 300 m height of the building in monitoring direction,are 5.12 mm,4.22 mm and 3.11 mm respectively,and the standard deviations reach the submillimeter level.The natural frequency of the building is detected as 0.2002 Hz.The building is also significantly affected by other frequencies because of construction vibration and temperature.For example,the displacement time series of monitoring direction at the roof of the building is still significantly affected by the frequencies of 0.3082/8.0339 Hz.The grey relational grade between displacement and temperature time series at the roof of the building is close to 1,which indicates the displacement may be closely related to temperature change.

关 键 词：地基雷达 超高层建筑物 动态监测 周期图法 频率 

分 类 号：P237[天文地球—摄影测量与遥感]