D-InSAR技术在阿干镇矿区地面沉降监测中的应用  

Application of D-InSAR Technology on Aganzhen mining area Surface Subsidence Monitoring

作　　者：王天祥[1] 马金辉[1] 王凯[1] 胡向德 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]甘肃省地质环境监测院,甘肃兰州730050

出　　处：《中国煤炭地质》2015年第6期62-67,共6页Coal Geology of China

基　　金：国家支撑计划课题(2015BAK15B02);国家国际科技合作专项项目(2013DFE23030);国家自然科学面上项目"黄土阶地斜坡的稳定性分析研究--以兰州地区为例"(编号:41172328)

摘　　要：煤矿区过度开采引起的矿区地表形变和地面塌陷对人民群众的生命和财产安全造成极大的隐患,准确获取矿区地表形变范围及形变量、预测地表形变趋势具有重要意义。传统的地表形变监测手段都是基于点位的观测,成本较高且难以获得整体形变趋势,本文采用先进的D-InSAR技术,针对D-InSAR技术流程中时空基线对相干性的影响、干涉图滤波方法及参数的影响等关键问题进行了大量实验和讨论,并提出了优化方案,获取了阿干镇煤矿区过度开采导致的两个严重塌陷区域及形变量,实验结果与甘肃省地质环境监测院实地调查结果高度一致,充分体现了D-InSAR技术在获取地表微小形变方面的强大优势及发展潜力,对D-InSAR技术在矿区地表监测、安全生产及土地规划等方面具有很好的实际意义。Coalmine area over exploitation caused surface deformation and collapse will give rise to great risk on people life and proper?ty security. Correctly obtaining mine area surface deformation range, extent, and prediction of surface deformation trend are of far reach?ing importance. Traditional surface deformation monitoring means are all based on point observations with higher cost and harder to get holistic deformation trend. The paper uses advanced D-InSAR technology, in allusion to key issues of D-InSAR technique process im?pacts from spaciotemporal baseline on coherence, interferometric phase image filtering and parameters, thus carried out a mass of ex?periments, discussions and put forward optimization schemes, found out two serious collapse areas and extent caused by over exploita?tion in the Aganzhen mining area. The experimental results are highly congruent with site investigated results from the Gansu Institute of Geo-Environment Monitoring, thus fully reflected great advantage and development potential on surface small deformation data ob?taining. The technology has good practical significance in aspects of mine area surface monitoring, safety in production and land plan?ning.

关 键 词：D-INSAR 基线 滤波 相干性 地表形变监测 

分 类 号：P642.26[天文地球—工程地质学] P227[天文地球—地质矿产勘探]