义能矿区开采沉陷演化的TS-DInSAR监测与影响分析

TS-DInSAR Monitoring and Impact Analysis of Mining Subsidence Evolution in Yineng Mining Area

为研究济宁市义能矿区开采沉陷演化特点及其对周边建筑物的影响,本文采用69景长时间序列中等分辨率Sentinel-1影像,以TS-DInSAR技术体系中的小基线集DInSAR分析为研究方法,获取了2016年初至2018年底该矿区开采面周边的沉降信息。结果表明,义能矿区在监测时段内沉陷范围较为集中,最大累计沉降量约为627 mm,通过居民点位置与沉陷结果的叠加分析,发现周边3处村庄受到了不同程度的影响,该结果能为煤矿开采沉陷控制方案的效果评估及设计优化提供重要参考作用。

In order to study the evolution characteristics of mining subsidence and its influence on surrounding buildings in Yineng mining area of Jining City,this paper uses Sentinel-1 image of 69 time series with medium resolution and small baseline DInSAR analysis in TS-DInSAR technical system as the research method to obtain the subsidence information around the mining area from the beginning of 2016 to the end of 2018.The results show that the subsidence area of Yineng mining area is relatively concentrated during the monitoring period,and the maximum cumulative settlement is about 627 mm.Through the superposition analysis of the location of residential areas and the results of subsidence,it is found that three surrounding villages are affected to varying degrees.The results can provide important reference for the effect evaluation and design optimization of coal mining subsidence control scheme.