基于MT-InSAR和灰色预测模型的金属矿区地表变形研究  

Study on ground surface deformation of a metal mine based on MT-InSAR approach and gray prediction model

作　　者：王华[1] 李素敏[1,2,3] 袁利伟 张玮 马相松 管庆丹[1] Wang Hua;Li Suming;Yuan Liwei;Zhang Wei;Ma Xiangsong;Guan Qingdan(School of Land and Resources Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;Surveying and Mapping Geo-Informatics Technology Research Center on Plateau Mountains of Yunnan Higher Education,Kunming Yunnan 650093,China;Key Laboratory of Intelligent Mine Geospatial Information Integration and Innovation,China Nonferrous Metals Industry Association,Kunming Yunnan 650093,China;School of Public Safety and Emergency Management,Kunming University of Science and Technology,Kunming Yunnan 650093,China;Yuxi Dahongshan Mining Co.,Ltd.,Yuxi Yunnan 653400,China;Kunming Color Metallurgical Design Institute Co.,Inc.,Kunming Yunnan 650000,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]云南省高校高原山区空间信息测绘技术应用工程研究中心,云南昆明650093 [3]中国有色金属工业协会智慧矿山地理空间信息集成创新重点实验室,云南昆明650093 [4]昆明理工大学公共安全与应急管理学院,云南昆明650093 [5]玉溪大红山矿业有限公司,云南玉溪653400 [6]昆明有色冶金设计研究院股份公司,云南昆明650000

出　　处：《化工矿物与加工》2022年第4期45-50,共6页Industrial Minerals & Processing

基　　金：国家自然科学基金(41161062,41861054);云南省重点研发计划(202003AC100002)。

摘　　要：对于矿区地表变形测量,传统方法存在成本高、很难反映地表大面积变形信息和时空演化特征等缺点。基于此,以大红山铁矿为例,采用Sentinel-1A卫星数据,利用SBAS-InSAR对数据进行处理,建立了灰色预测模型,并对模型精度进行了验证,结果表明:由地面观测点获取的实测三向位移经归一化后得到的位移与InSAR取得的LOS向位移相对误差在15%以内,表明时间序列InSAR在观测精度上是可靠的;矿区内存在4个发育成熟的沉降集中带和2个局部沉降区域;InSAR监测值和水准测量值有较好的一致性,监测相对误差和预测相对误差均在12%以内。The application of traditional methods in the measurement of ground surface deformation in mining areas often presents disadvantages such as high operating cost,difficulty to reflect large area of ground deformation with space-time evolution characteristics.Because of this,taking the Dahongshan Iron Mine as an instance,the data received from Sentinel 1A satellite were processed by using the SBAS-InSAR approach,thus the grey prediction model was also developed.Finally the accuracy of the proposed model was verified.The results show that the relative deviation of the integrated three dimensional displacement obtained from the ground surveying points to the LOS displacement resulted from InSAR was less than 15%,indicating the reliable accuracy of the InSAR timing for deformation observation.There were four well-developed and concentrated sedimentation zones and two local sedimentation areas in the mine.The measurement results based on InSAR were consistent to that of leveling survey.The relative deviation of both actual field survey and prediction survey was less than 12%.

关 键 词：地表变形 MT-InSAR 灰色预测模型 位移 模型精度 相对误差 

分 类 号：P642.26[天文地球—工程地质学]