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国产GB-InSAR在特大型水库滑坡变形监测中的应用

郭延辉 杨溢 杨志全 高才坤 田卫明 何玉童

郭延辉, 杨溢, 杨志全, 高才坤, 田卫明, 何玉童. 2021: 国产GB-InSAR在特大型水库滑坡变形监测中的应用. 中国地质灾害与防治学报, 32(2): 66-72. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.09
引用本文: 郭延辉, 杨溢, 杨志全, 高才坤, 田卫明, 何玉童. 2021: 国产GB-InSAR在特大型水库滑坡变形监测中的应用. 中国地质灾害与防治学报, 32(2): 66-72. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.09
Yanhui GUO, Yi YANG, Zhiquan YANG, Caikun GAO, Weiming TIAN, Yutong HE. 2021: Application of GB-InSAR in deformation monitoring of huge landslide in reservoir area. The Chinese Journal of Geological Hazard and Control, 32(2): 66-72. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.09
Citation: Yanhui GUO, Yi YANG, Zhiquan YANG, Caikun GAO, Weiming TIAN, Yutong HE. 2021: Application of GB-InSAR in deformation monitoring of huge landslide in reservoir area. The Chinese Journal of Geological Hazard and Control, 32(2): 66-72. doi: 10.16031/j.cnki.issn.1003-8035.2021.02.09

国产GB-InSAR在特大型水库滑坡变形监测中的应用

doi: 10.16031/j.cnki.issn.1003-8035.2021.02.09
基金项目: 国家自然科学基金中智国际(地区)合作与交流重点项目(41861134008);云南省应用基础研究计划项目(2018FB075);云南省科技计划项目(科技惠民计划2015RA069)
详细信息
    作者简介:

    郭延辉(1985-),男,博士(后),副教授,主要从事地质灾害监测与预测预警方面的研究。E-mail:guoyanhui0818@kust.edu.cn

    通讯作者:

    杨 溢(1965-),男,博士,教授,主要从事地质灾害起动机理与防控方面研究。E-mail:2919847230@qq.com

  • 中图分类号: P642.2

Application of GB-InSAR in deformation monitoring of huge landslide in reservoir area

  • 摘要: 水电站库区特大型滑坡的稳定性对于水电站坝工结构及周边人民生命财产安全具有重要影响,对该类滑坡稳定性及变形趋势进行大范围实时精确观测可为滑坡提供可靠的预警和治理信息,具有十分重要的意义。水电站库区滑坡传统监测方法主要以GNSS监测,全站仪监测等为主,本研究将国产先进的地基干涉合成孔径雷达系统LKR-05-KU-S100,应用于澜沧江大华桥水电站沧江桥—营盘滑坡和大华滑坡的监测。现场监测试验表明,该系统精度较高,可进行远距离、全天时、全天候、大范围监测,对于大型及特大型滑坡的监测具有独特的优势和广阔的应用前景。
  • 图  1  GB-InSAR系统观测几何示意图

    Figure  1.  Observation geometry schematic diagram of GB-InSAR system

    图  2  GB-InSAR分辨率示意图

    Figure  2.  Resolution diagram of GB-InSAR

    图  3  LKR-05-KU-S100雷达系统组成图

    Figure  3.  Composition of LKR-05-KU-S100 radar system

    图  4  雷达监测信息成像处理界面

    Figure  4.  Radar monitoring information imaging processing interface

    图  5  沧江桥—营盘滑坡全貌及分区示意图

    Figure  5.  Cangjiangqiao—Yingpan landslide panorama and zoning diagram

    图  6  沧江桥—营盘滑坡光学照片

    Figure  6.  Optical photos of Cangjiangqiao—Yingpan landslide

    图  7  沧江桥—营盘滑坡雷达强度影像及变化过程曲线图

    Figure  7.  Radar intensity image and change process curve

    图  8  沧江桥—营盘滑坡累积变形分布图

    Figure  8.  Cumulative deformation distribution of Cangjiangqiao—Yingpan landslide

    图  9  大华滑坡全貌及分区图

    Figure  9.  Overall view and zoning map of Dahua landslide

    图  10  大华滑坡雷达强度影像图

    Figure  10.  Radar intensity image of Dahua landslide

    图  11  大华滑坡监测过程曲线

    Figure  11.  Dahua landslide monitoring process curve

    图  12  大华滑坡累积变形分布图

    Figure  12.  Distribution of accumulated deformation of Dahua landslide

    表  1  雷达基本参数表

    Table  1.   Radar basic parameter table

    雷达组成参数名称参数取值
    雷达控制单元信号频段Ku
    信号类型SFCW
    孔径类型合成孔径
    天线增益18 dBi
    极化方式VV
    主瓣-3 dB角宽75°H/90°V
    下载: 导出CSV

    表  2  LKR-05-KU-S100系统基本参数

    Table  2.   Basic parameters of LKR-05-KU-S100 system

    参数名称 参数取值
    分辨率 距离分辨率:0.3 m
    方位向:4 mrad(可定制)
    监测距离/m10~4000
    监测精度/mm0.1
    工作环境/°C−25~60
    软件软件数据接口开放,界面简易,操作方便
    可定制性 可实现多源数据融合
    下载: 导出CSV
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  • 收稿日期:  2020-08-19
  • 修回日期:  2021-01-04
  • 刊出日期:  2021-04-27

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