测绘通报 ›› 2025, Vol. 0 ›› Issue (12): 71-76.doi: 10.13474/j.cnki.11-2246.2025.1212

• 工程测量分会年会优选论文 • 上一篇    

基于星载InSAR的抽水蓄能电站环形堆石坝变形监测

万鹏1,2,3, 翟若明1,2,3, 丁帮宁1,2,3, 黎建洲1,2,3, 邹双朝1,2,3   

  1. 1. 长江科学院工程安全与灾害防治研究所, 湖北 武汉 430010;
    2. 水利部水工程安全与病害防治工程技术研究中心, 湖北 武汉 430010;
    3. 国家大坝安全工程技术研究中心, 湖北 武汉 430010
  • 收稿日期:2025-06-26 发布日期:2025-12-31
  • 作者简介:万鹏(1989—),男,博士,高级工程师,主要从事遥感信息处理分析及变形监测等研究工作。E-mail:wanpeng@mail.crsri.cn
  • 基金资助:
    中央级公益性科研院所基本科研业务费专项资金(CKSF2021448);长江勘测规划设计研究院开放创新基金(CX2019K02)

Deformation monitoring of ring rockfill dam in pumped storage power station based on spaceborne InSAR

WAN Peng1,2,3, ZHAI Ruoming1,2,3, DING Bangning1,2,3, LI Jianzhou1,2,3, ZOU Shuangchao1,2,3   

  1. 1. Engineering Safety and Disater Prevention Department, Changjiang River Scientific Research Institute, Wuhan 430010, China;
    2. Research Center on Water Engineering Safety and Disaster Prevention of MWR, Wuhan 430010, China;
    3. Research Center on National Dam Safety Engineering Technology, Wuhan 430010, China
  • Received:2025-06-26 Published:2025-12-31

摘要: 本文利用时间序列星载InSAR变形监测技术,研究抽水蓄能电站环形堆石坝的变形特征。利用永久散射体 InSAR(PSInSAR)处理技术,并结合高精度数字高程模型(DEM)数据,对张河湾抽水蓄能电站上水库环形堆石坝的表面变形进行监测;利用高精度测量机器人的地面同步监测数据对 InSAR 变形监测精度进行验证,对环形堆石坝变形特征进行分析。结果表明,张河湾电站上水库坝体及边坡在观测期内整体呈现抬升趋势,初步判断该现象由冬季至夏季的气温升高所致;InSAR 技术获取的监测点变形速率与地面同步观测结果的相关系数为 0.838,均方根误差(RMSE)为 7.24 mm /a;环形堆石坝监测点累计位移与温度显著相关;温度对监测点位移的影响呈缓慢非线性特征,且不同监测点响应存在差异;监测点祥林期位移量与水位变化量相关性较强,水位对特定点位的上下游向位移影响较大。本文研究为环形堆石坝等大面积构筑物的 InSAR 变形监测研究与应用提供了重要参考。

关键词: InSAR, 环形堆石坝, 变形监测, 抽水蓄能电站, 变形特征

Abstract: This study aims to investigate the deformation characteristics of the annular rockfill dam in pumped-storage power plants using time-series spaceborne InSAR deformation monitoring technology.The permanent scatterer InSAR (PSInSAR)processing technique was employed,combined with high-precision digital elevation model (DEM)data,to monitor the surface deformation of the annular rockfill dam in the upper reservoir of the Zhanghewan pumped-storage power plant.The monitoring accuracy of InSAR was validated using ground-based synchronous monitoring data from high-precision measurement robots,and the deformation characteristics of the annular rockfill dam were analyzed.The results show that the dam body and slopes of the upper reservoir in the Zhanghewan power plant exhibited an overall uplift trend during the observation period,which is preliminarily attributed to the temperature increase from winter to summer.The correlation coefficient between the deformation rates of monitoring points obtained by InSAR technology and the ground-based synchronous observations reached 0.838,with a root-mean-square error (RMSE)of 7.24mm/a.The cumulative displacement of monitoring points in the annular rockfill dam is significantly correlated with temperature.The influence of temperature on the displacement of monitoring points exhibits a slow nonlinear characteristic,and the responses of different monitoring points are divergent.The displacement of monitoring points shows a strong correlation with water level changes,indicating that water levels have a significant impact on the upstream-downstream displacement of specific points.This study provides important references for the research and application of InSAR deformation monitoring for large-area structures such as annular rockfill dams.

Key words: InSAR, ring rockfill dam, deformation monitoring, pumped storage power station, deformation characteristics

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