地质与资源2025，Vol.34Issue(6)：721-728,8.DOI:10.13686/j.cnki.dzyzy.2025.06.006
基于多轨InSAR技术的露天矿区形变监测
Deformation monitoring of open-pit mining areas using multi-track InSAR technology
摘要
Abstract
Open-pit mining of mineral resources often leads to slope instability and triggers hazards such as landslides,posing significant constraints on the sustainable development of both the mining environment and local socio-economy.This study focuses on the Manjiazhai open-pit mine and employs ascending and descending Sentinel-1A data(January 2020 to June 2021)to monitor slope deformation using the Small Baseline Subset Interferometric Synthetic Aperture Radar(SBAS-InSAR)method.The one-dimensional line-of-sight(LOS)deformation from multiple tracks was decomposed into two-dimensional displacement fields,yielding deformation velocities and time-series results in the east-west and vertical directions.The slope generally exhibited gradual deformation,with certain localized areas showing accelerated movement.The east-west deformation rate ranged from-545 to+423 mm/a,while the vertical deformation rate varied between-279 and+110 mm/a.By combining geological data and rainfall statistics from the monitoring period,internal and external contributing factors to slope instability were analyzed.Furthermore,the accuracy of InSAR-derived results was validated using total station monitoring data from 19 control points,showing an average error of±11 mm and a root mean square error of±14 mm.关键词
露天采场/滑坡灾害/SBAS-InSAR/二维形变/监测精度Key words
open-pit mine/landslide hazard/SBAS-InSAR/2D deformation/monitoring accuracy分类
天文与地球科学引用本文复制引用
杨华祥,张帆,赵海往,杨志成,张坤梅,杨文梅..基于多轨InSAR技术的露天矿区形变监测[J].地质与资源,2025,34(6):721-728,8.基金项目
陕西省自然科学基础研究计划项目"基于多目标优化理论与SAR立体测量辅助的大规模多基线相位解缠绕研究"(2023-JC-QN-0370). （2023-JC-QN-0370）
