Monitoring Regional Surface Subsidence of Ningdong Coal Base by DinSAR
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摘要:
宁东煤炭基地开发已成为宁夏工业经济发展的重要引擎，而煤炭开采所引起的地表沉降成为该区主要的区域地质环境问题。笔者利用合成孔径雷达差分干涉测量技术（DinSAR）和2015～2019年的5期Sentinel-1A数据，对宁东煤炭基地区域性地表沉降特征进行监测。结果表明，不同区域、不同年份间的沉降特征存在较大差异，其中北部地区整体沉降量较大，年最大沉降量达到了0.13 m，南部整体沉降量较小；2015～2016年沉降量最大，而2016～2017年沉降量最小；2015～2019年沉降量超过0.1 m的区域面积为578 km²，沉降区与煤矿工矿开采活动区一致，主要为煤炭开采引发的地表沉降。其他微量地表沉降，一方面来自雷达影像的相干失真，另一方面与地表其他风沙侵蚀等变形有关。DinSAR技术在大范围监测地表沉降方面具有明显优势，但由于时间基线较长，存在一定的失相干现象。
Abstract:The exploitation of Ningdong coal base has become an important engine for industrial economic development in Ningxia. Surface subsidence, which caused by coal mining has become the main geological environmental problem in the area. This study monitored regional surface subsidence characteristics of Ningdong coal base by utilizing Differential Interferometry Synthetic Aperture Radar (DinSAR) and Sentinel-1A dataset from 2015 to 2019. The results indicated that the characteristics of subsidence vary widely in different regions and years, subsidence in the north is larger than that in the south, which maximum reached 0.13 m. In the past four years, the subsidence from 2015 to 2016 is most serious and however its from 2016 to 2017 is lest. During 2015～2019, the area with subsidence value more than 0.1 m were 578 km². The subsidence area is consistent with the mining activity area, which means that the surface subsidence is mainly caused by coal mining. Other slight surface subsidence, on the one hand, could caused by coherent distortion of radar image and be related to the surface deformation such as wind-sand erosion on the other hand. DinSAR technique has distinct advantage in monitoring large-scale land subsidence, but there is a loss of coherent phenomenon due to the long time baseline.
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Keywords:
- surface subsidence /
- DinSAR /
- coal base /
- deformation monitoring /
- Ningdong
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图 2 基于SARscape的DinSAR测量技术流程图
Figure 2. Flowchart of differential interferometry synthetic aperture radar by SARscape
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图 3 不同处理下的干涉条纹图（2015～2016年）
a.干涉条纹图；b.去平后的干涉条纹图；c.滤波后的干涉条纹图；d.重去平后的干涉条纹图
Figure 3. Interferogram with different processing (from 2015 to 2016)
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图 4 不同时间段宁东地表沉降及主要煤矿开采区
a. 2015～2016 年；b. 2016～2017 年；c. 2017～2018 年；d. 2018～2019 年；e. 主要煤矿开采区
Figure 4. Subsidence map of Ningdong region in different periods and mainly coal mining areas
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图 5 2015～2019年累积沉降量及沉降切面图
a. 2015～2019 年累积沉降量；b. A–B 线沉降切面；c. C–D 线沉降切面
Figure 5. Cumulative subsidence and its profile of Ningdong region from 2015 to 2019
表 1 Sentinel-1A干涉像对及其时空基线表
Table 1 Temporal and spatial (perpendicular) baselines of Sentinel-1A interferograms
干涉像对编号 主影像成像时间 副影像成像时间 时间基线（d） 空间基线（m） 1 20150520 20160514 360 −101.11 2 20160514 20170521 372 38.32 3 20170521 20180516 360 51.09 4 20180516 20190523 372 −18.87 
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白泽朝,汪宝存,靳国旺,等. Sentinel-1A数据矿区地表形变监测适用性分析[J]. 国土资源遥感,2019,31(2):210–217. BAI Zechao, WANG Baocun, JIN Guowang, et al. Applicability analysis of ground deformation monitoring in mining area by Sentinel-1A data[J]. Remote Sensing for Land and Resources, 2019, 31(2): 210-217.
董英,张茂省,卢娜,等. 陕北能源化工基地资源开发引起的植被生态风险[J]. 地质通报,2008,27(8):1313–1322. DONG Ying, ZHANG Maosheng, LU Na, et al. Ecological risk of vegetation caused by resource exploitation in the Northern Shaanxi, Energy & Chemical Industry Base, China[J]. Geological Bulletin of China, 2008, 27(8): 1313-1322.
杜臻, 张茂省, 冯立, 等. 鄂尔多斯盆地煤炭采动的生态系统响应机制研究现状与展望[J]. 西北地质, 2023, 56(3): 78−88. DU Zhen, ZHANG Maosheng, FENG Li, et al. Research Status and Prospect of Ecosystem Response Mechanism to Coal Mining in Ordos Basin[J]. Northwestern Geology, 2023, 56(3): 78-88.
杜灵通,徐友宁,宫菲,等. 宁东煤炭基地植被生态特征及矿业开发对其的影响[J]. 地质通报,2018,37(12):2215–2223. doi: 10.12097/j.issn.1671-2552.2018.12.012 DU Lingtong, XU Youning, GONG Fei, et al. Characteristics of vegetation and ecology in Ningdong coal base and the effects of mining activities[J]. Geological Bulletin of China, 2018, 37(12): 2215-2223. doi: 10.12097/j.issn.1671-2552.2018.12.012
冯旻譞, 齐琦, 董英, 等. 利用Sentinel-1A数据监测大西安2019～2022年大西安地表形变[J]. 西北地质, 2023, 56(3): 178−185. FENG Minxuan, QI Qi, DONG Ying, et al. Monitoring Surface Deformation in Xi’an City from 2019 to 2022 Based on Sentinel-1A Data[J]. Northwestern Geology, 2023, 56(3): 178−185.
高冠杰,侯恩科,谢晓深,等. 基于四旋翼无人机的宁夏羊场湾煤矿采煤沉陷量监测[J]. 地质通报,2018,37(12):2264–2269. doi: 10.12097/j.issn.1671-2552.2018.12.018 GAO Guanjie, HOU Enke, XIE Xiaoshen, et al. The monitoring of ground surface subsidence related to coal seams mining in Yangchangwan coal mine by means of unmanned aerial vehicle with quad-rotors[J]. Geological Bulletin of China, 2018, 37(12): 2264-2269. doi: 10.12097/j.issn.1671-2552.2018.12.018
李广宇,张瑞,刘国祥,等. Sentinel-1A TS-DInSAR京津冀地区沉降监测与分析[J]. 遥感学报,2018,22(4):633–646. LI Guangyu, ZHANG Rui, LIU Guoxiang, et al. Land subsidence detection and analysis over Beijing-Tianjin-Hebei area based on Sentinel-1A TS-DInSAR[J]. Journal of Remote Sensing, 2018, 22(4): 633-646.
李旺. 基于哨兵卫星的长白山地区地表形变监测DInSAR技术[J]. 北京测绘,2018,32(9):1073–1077. LI Wang. DInSAR technology of subsidence monitoring in Changbai mountain area based on Sentinel satellite[J]. Beijing Surveying and Mapping, 2018, 32(9): 1073-1077.
欧阳伦曦,李新情,惠凤鸣,等. 哨兵卫星Sentinel-1A数据特性及应用潜力分析[J]. 极地研究,2017,29(2):286–295. OUYANG Lunxi, LI Xinqing, HUI Fengming, et al. Sentinel-1A data products’ characteristics and the potential applications[J]. Chinese Journal of Polar Research, 2017, 29(2): 286-295.
王国瑞,徐友宁,程霞,等. 宁东煤炭基地金凤煤矿GPS地面变形监测研究[J]. 地质通报,2018,37(12):2199–2207. doi: 10.12097/j.issn.1671-2552.2018.12.010 WANG Guorui, XU Youning, CHENG Xia, et al. A study of GPS ground deformation monitoring of Jinfeng coal mine in Ningdong coal base[J]. Geological Bulletin of China, 2018, 37(12): 2199-2207. doi: 10.12097/j.issn.1671-2552.2018.12.010
王景升,李佳,陈宝雄,等. 宁夏东部能源化工基地煤炭产业生态风险评估[J]. 资源科学,2013,35(10):2011–2016. WANG Jingsheng, LI Ja, CHEN Baoxiong, et al. Coal mining ecological risk assessment of the energy chemical production base in Eastern Ningxia[J]. Resources Science, 2013, 35(10): 2011-2016.
谢晓深,侯恩科,高冠杰,等. 宁夏羊场湾煤矿浅埋煤层开采地面塌陷发育规律及形成机理[J]. 地质通报,2018,37(12):2233–2240. doi: 10.12097/j.issn.1671-2552.2018.12.014 XIE Xiaoshen, HOU Enke, GAO Guanjie, et al. A study of the development regularity and formation mechanism of ground subsidence in shallow coal seam mining of Yangchangwan coal mine, Ningxia[J]. Geological Bulletin of China, 2018, 37(12): 2233-2240. doi: 10.12097/j.issn.1671-2552.2018.12.014
张永庭,徐友宁,梁伟,等. 基于无人机载LiDAR的采煤沉陷监测技术方法——以宁东煤矿基地马连台煤矿为例[J]. 地质通报,2018a,37(12):2270–2277. ZHANG Yongting, Xu Youning, LIANG Wei, et al. Technical methods for colliery subsidence disaster monitoring using UAV LiDAR: A case study of the Maliantai colliery, Ningdong coal base, Ningxia[J]. Geological Bulletin of China, 2018a, 37(12): 2270-2277.
张永庭,魏采用,徐友宁,等. 基于遥感技术的宁东煤炭基地土地利用变化及驱动力分析[J]. 地质通报,2018b,37(12):2169–2175. ZHANG Yongting, WEI Caiyong, XU Youning, et al. An analysis of land use changes and driving forces in Ningdong coal base of Ningxia with remote sensing technology[J]. Geological Bulletin of China, 2018b, 37(12): 2169-2175.
郑美楠,邓喀中,陈华,等. 时序累积DInSAR与GIS结合的矿区沉降监测与分析[J]. 煤矿安全,2017,48(1):160–163. doi: 10.13347/j.cnki.mkaq.2017.01.044 ZHENG Meinan, DENG Kazhong, CHEN Hua, et al. Monitoring and analysis of mining subsidence based on timing accumulation DInSAR and GIS[J]. Safety in Coal Mines, 2017, 48(1): 160-163. doi: 10.13347/j.cnki.mkaq.2017.01.044
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