文章摘要
Irfan Ahmed Soomro,范宇宾,郭唯娜,柯长青.基于SBAS-InSAR技术的巨野煤田沉降监测[J].高技术通讯(中文),2021,31(3):333~340
基于SBAS-InSAR技术的巨野煤田沉降监测
Surface subsidence monitoring in Juye coalfield based on SBAS-InSAR technology
  
DOI:10.3772/j.issn.1002-0470.2021.03.014
中文关键词: 小基线集雷达干涉测量(SBAS-InSAR); 煤炭开采; 矿区沉降; 巨野煤田
英文关键词: small baseline subset interferometric synthetic aperture radar (SBAS-InSAR), exploitation of coal mining, subsidence of the mining area, Juye coalfield
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作者单位
Irfan Ahmed Soomro  
范宇宾  
郭唯娜  
柯长青  
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中文摘要:
      矿产资源过度开采极易诱发地面塌陷等地质灾害,对矿区的生产生活造成了严重的威胁。采用2017年5月至2018年11月21景Sentinel-1A数据,设置时间基线(365d)和空间基线(2371m)并生成连接图,采用小基线集技术(SBAS)对生成的影像对进行干涉处理,通过生成的干涉相位进行地面沉降的参数反演,获取了巨野煤田的形变场和监测点的形变序列。结果发现,巨野煤田发生24mm以上地面沉降的区域面积占比高达87.12%,而郭屯矿区的地面沉降最为严重,中心沉降量超过70mm,年沉降速率达到45mm/a。巨野煤田的地面沉降由自然和人为因素造成,其中人为煤炭开采和地下水的过量使用是主要原因。与水准测量的对比结果表明,二者沉降监测的总体趋势吻合。该项研究工作表明,小基线集雷达干涉测量(SBAS-InSAR)技术可以很好地应用于矿区沉降的监测,为合理开采矿产资源和矿区环境保护提供参考依据。
英文摘要:
      Excessive exploitation of mineral resources can easily induce ground deformation and other geological disasters, which poses a serious threat to the production and lives of the mining area. 21 Sentinel-1A scenes from May 2017 to November 2018 are adopted, then a connection chart is generated by setting the temporal (365d) and spatial (2371m) baselines. Based on this, the image pairs are interfered by small baseline subset (SBAS) technique. The parameters of land subsidence are inverted through the generated interferometric phase, and the deformation field and point monitoring sequence of the Juye coalfield are obtained. The results show that the cumulative settlement over 24mm occurs in 87.12% of the land in Juye coalfield, and the maximum land subsidence occurs in Guotun coal mine, the settlement rate is 45mm/a and the cumulative settlement is more than 70mm. The land subsidence in Juye coalfield is caused by natural and human factors, of which the exploitation of coal mine and the overuse of groundwater are the main reasons. Compared with the leveling data, the overall trend of subsidence monitoring is consistent, which demonstrates that the surface deformation monitoring results based on the small baseline subset interferometric synthetic aperture radar (SBAS-InSAR) method are reliable. It provides a reference basis for rational exploitation of mineral resources and environmental protection in mining areas.
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