基于单视线向D-InSAR技术提取开采沉陷移动与变形方法研究  

Retrieving surface movement and deformation induced by coal mining based on a single D-InSAR pair

作　　者：王磊 张鲜妮[1] 

机构地区：[1]安徽理工大学测绘学院,安徽淮南232001 [2]山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地,山东青岛266590

出　　处：《岩石力学与工程学报》2017年第4期865-873,共9页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金资助项目(41602357);安徽高校自然科学研究项目(KJ2016A190);山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地开放基金(MDPC2013KF14)~~

摘　　要：为了解决D-InSAR技术不能全面监测煤矿开采引起的地表移动与变形问题,综合运用理论推导和模拟实验方法,开展基于单视线向D-InSAR技术提取开采沉陷移动与变形的方法研究,主要取得如下成果:(1)融合近水平、缓倾斜煤层开采沉陷规律和D-InSAR技术,建立任意像元任意方向下沉、倾斜、水平移动、水平变形和曲率变形的计算模型及其推广模型。模拟实验结果表明,在模拟地质采矿条件和影像分辨率10 m条件下,任意像元移动变形模型提取精度为:(1)SN,EW向倾斜计算误差分别为±0.03和±0.02 mm/m;(2)SN,EW向水平移动计算误差分别为±1.6和±1.3 mm;(3)SN,EW向水平变形计算误差分别为±0.04和±0.03 mm/m;(4)SN,EW向曲率计算误差分别为±0.001和±0.001 mm/m^2。模型精度满足矿山开采沉陷监测要求。(2)利用构建的基于单视线向D-InSAR技术提取开采沉陷移动与变形方法,提取了20120105~20120116期间,南屯煤矿9310工作面开采引起的SN,EW向采动地表移动与变形。研究成果对矿山开采沉陷D-InSAR监测具有重要参考价值。Current D-InSAR technology cannot fully survey the surface movement and deformation caused by the coal mining. To overcome the weakness, a method of extracting the movement and deformation from a single D-InSAR pair based on the integrated means of theoretical derivation and simulation experiments was proposed. A calculation model of the flit, horizontal movement, curvature and horizontal deformation in any direction for all pixels by combining the subsidence of the horizontal and gently inclined coal seams and D-InSAR technology was established. The errors of tilt calculation in North-south and east-west directions are ±0.03 mm/m and±0.02 mm/m respectively. The errors of horizontal movement calculation in north-south and east-west directions are ±1.6 mm and ±1.3 mm respectively. The errors of horizontal deformation calculation in north-south and east-west direction are ±0.04 mrn/m and ±0.03 mm/m respectively. The errors of curvature deformation calculation in north-south and east-west directions are ±0.001 mrn/m2 and ±0.001 mm/m2 respectively. During the period of 05-01-2012 to 16-01-2012, the surface movement and deformation in north-south and east-west directions caused by the mining at workface 9310 in Nantun coal mine were calculated by using the retrieving model of movement and deformation.

关 键 词：采矿工程 D-INSAR 概率积分法 移动与变形 开采沉陷 

分 类 号：TD32[矿业工程—矿井建设]