相邻工作面开采下的矿区地表沉陷InSAR监测与分析  

InSAR monitoring and analysis of surface subsidence in mining area under adjacent mining face

作　　者：张红月 王道顺 ZHANG Hongyue;WANG Daoshun(Shandong Provincial Lunan Geology and Exploration Institute(Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geological Brigade),Yanzhou 272100,China;Jining Data and Application Center of High Resolution Earth Observation System,Yanzhou 272100,China;Technology Innovation Center of Restoration and Reclamation in Mining Induced Subsidence Land,Ministry of Natural Resources,Yanzhou 272100,China;Shang Provincial Big Data Industry Innovation Center,Yanzhou 272100,China)

机构地区：[1]山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队),山东兖州272100 [2]高分辨率对地观测系统济宁数据与应用中心,山东兖州272100 [3]自然资源部采煤沉陷区综合治理工程技术创新中心,山东兖州272100 [4]山东省大数据产业创新中心,山东兖州272100

出　　处：《煤矿安全》2023年第6期184-192,共9页Safety in Coal Mines

基　　金：山东省鲁南地质工程勘察院(山东省地勘局第二地质大队)开放基金资助项目(LNYS-2021-N14);山东省重点研发计划(重大科技创新工程)资助项目(2020CXGC011403);2021年度山东省地勘局科技创新资助项目(KY202109)。

摘　　要：针对相邻工作面重复开采条件下地表形变复杂和常规D-InSAR方法易受时间去相关和大气延迟等因素影响的问题,以东滩煤矿为研究对象,采用SBAS-InSAR方法对40景Sentinel-1A数据进行时序处理,获取了研究区域的年均沉降速率和时序累计沉降量,并对形变特征进行了分析。结果表明:6303相邻工作面的采动对已采工作面影响效果显著,相邻工作面开采条件下地表沉陷速率快、范围广、沉陷盆地形状不规则,6303工作面在走向和倾向上的沉降量差异明显,表现出非对称性特征;InSAR技术能够效监测到矿区相邻工作面开采的地表沉陷现象,可为类似复杂开采条件下的矿区地表形变分析提供技术参考。Aiming at the problems that the surface deformation is complex under the condition of repeated mining of adjacent working faces and the conventional D-InSAR method is easily affected by factors such as time decorrelation and atmospheric delay,this paper takes Dongtan Coal Mine as the research object,and adopts the SBAS-InSAR method to process the 40-scene Sentinel-1A data,the annual average subsidence rate and time series accumulated subsidence of the study area were obtained,and the deformation characteristics were analyzed.The results show that the mining effect of 6303 adjacent working face on the existing working face is significant.Under the mining conditions of adjacent working face,the surface subsidence rate is fast,the scope is wide,and the subsidence basin shape is irregular.The subsidence amount of 6303 working face in the strike and inclination is obviously different,showing the characteristics of asymmetry.InSAR technology can effectively monitor the surface subsidence phenomenon of adjacent mining face,which can provide a reference for the analysis of surface deformation in mining area under similar complex mining conditions.

关 键 词：SBAS-InSAR 相邻工作面 开采沉陷 沉陷盆地 特征分析 

分 类 号：TD325.4[矿业工程—矿井建设]