基于DInSAR技术的煤矿区地面沉陷分析  

Analysis of land subsidence in coal mining area based on DInSAR technology

作　　者：王娜[1] 徐素宁[1] 周家晶[2] 

机构地区：[1]中国地质环境监测院,北京100081 [2]核工业北京地质研究院遥感信息与图像分析技术国家级重点实验室,北京100029

出　　处：《中国地质灾害与防治学报》2016年第2期110-114,共5页The Chinese Journal of Geological Hazard and Control

基　　金：中国地质调查局地质矿产调查评价专项:矿山环境综合调查与评价(1212011220086)

摘　　要：以神木县某一煤矿区地面沉陷为研究对象,收集了2012年10月至2013年3月期间5期RADARSAT-2数据,利用雷达差分干涉测量(DIn SAR)技术进行地面沉陷监测研究。通过"二轨法"进行差分处理,根据差分干涉图的时间分布和干涉图的质量,选择其中的4期雷达差分干涉图进行处理,获得了该研究区mm级精度的沉陷场以及相应的等值线图,并统计了沉陷面积,分析得出研究区内地表存在较大幅度沉陷区域,沉陷速率明显减小的结论,这与煤矿开采地表沉陷逐渐稳定过程相吻合,后结合光学影像对沉陷结果进行综合分析。试验表明,DIn SAR技术在矿区地面沉陷监测方面可应用性较高,其结果可为矿山后续的开采沉陷控制和沉陷区综合治理提供一定依据。In Shenmu a mining ground subsidence as the research object,collected the five RADARSAT-2 data from October 2012 to March 2013,used radar differential interferometry（DIn SAR） technology for land subsidence monitoring studies. Through the ＂two-track method ＂ differential treatment,according to the differential interferogram time Distributed and interfere with quality map,select the four radar differential interferogram processing,access to the settlement of the field and the corresponding contour map of the study area mm-level accuracy and statistics of the settlement area,analysis results of surface subsidence study area,the presence of a relatively large area, sedimentation rate reduced significantly, which consistent with stabilization process gradually of coal mining surface subsidence,and combing optical image comprehensive analysis the results of subsidence. Tests showed that the mining ground subsidence monitoring DIn SAR technology has applicability,the results can be mined for subsequent mining subsidence control and provide a basis for the comprehensive management of subsidence.

关 键 词：雷达差分干涉测量 地面沉陷 监测 煤矿区 

分 类 号：P642.26[天文地球—工程地质学]