| 刘干,张凯,郭子钰,韩流.基于时序 InSAR技术的白音华一号矿区地表形变规律研究[J].矿产勘查,2025,16(6):1540-1549 |
| 基于时序 InSAR技术的白音华一号矿区地表形变规律研究 |
| Research on surface deformation regularity of Baiyinhua No. 1 mining area based on time-series InSAR technology |
| 投稿时间：2024-10-19 |
| DOI：10.20008/j.kckc.202506022 |
| 中文关键词: SBAS-InSAR 地表形变探测 边坡形变 白音华一号矿 |
| 英文关键词: SBAS-InSAR surface deformation detection slope deformation Baiyinhua No. 1 mine |
| 基金项目:本文受中煤科工集团沈阳设计研究院有限公司内部科研项目“露天矿地质灾害空-天-地一体化安全监控预警技术研究与应用”(NKJ016-2023)和“露天煤矿软岩内排基底长效加固技术研究”(NKY011-2024)联合资助。 |
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| 中文摘要: |
| 为了分析内蒙古白音华一号矿区地面沉降的时空变化特征及地表形变规律，本文利用 Sentinel-1B卫星 2条相邻降轨数据，结合相位叠加技术(Stacking)和小基线集(Small Baseline Subset，SBAS)技术，提取了矿区的沉降形变信息。通过对 2条轨道 InSAR监测结果的对比分析发现，矿区沉降主要集中在南、北排土场区域。其中，南排土场的累计形变量达 527 mm，年均形变速率为 148 mm/a；北排土场的最大累计形变量为 400 mm，年均形变速率为 112 mm/a。为进一步分析矿区的时序形变特征，本文选取了南北排土场的 8个特征形变点进行研究，结果表明两区域的形变规律较为一致，主要经历了“缓慢形变—加速形变—缓慢形变”3个阶段。其中，加速形变阶段集中在每年的 1—6月，其变化规律与矿区工期规划、冻融影响有关。研究表明，矿产开采与排弃计划、冻融等气候条件是导致矿区地表沉降的主要原因；研究成果可为矿区地质灾害防治、工期优化和环境保护提供重要的参考依据。 |
| 英文摘要: |
| To analyze the spatiotemporal characteristics and surface deformation patterns of ground subsidencein the Baiyinhua No.1 mining area in Inner Mongolia, this study utilized Sentinel-1B satellite descending orbit data from two adjacent tracks. Phase stacking (Stacking) and Small Baseline Subset (SBAS) techniques were employed toextract subsidence and deformation information of the mining area. Comparative analysis of InSAR results from thetwo tracks revealed that subsidence is primarily concentrated in the south and north dumping sites. The cumulativedeformation in the south dumping site reached 527 mm, with an average annual deformation rate of 148 mm/year,while the maximum cumulative deformation in the north dumping site reached 400 mm, with an average annual de.formation rate of 112 mm/year. To further explore the temporal deformation characteristics of the mining area, eightcharacteristic deformation points in the two dumping sites were selected for analysis. The results indicate that bothsites exhibit similar deformation patterns, characterized by three stages: "slow deformation—accelerated deforma. tion—slow deformation". Among them, the accelerated deformation stage is concentrated from January to June eachyear, and its variation law is related to the mining area construction period planning and freeze-thaw influence.Studies have shown that mineral mining and dumping plans, freeze-thaw climate conditions, etc., are the maincauses of surface subsidence in mining areas. The research results provide important reference basis for geologicaldisaster prevention, construction period optimization, and environmental protection in mining areas. |
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