Abstract

The study involves developing a framework of research methodology for enhancing the capability of spaceborne integrated DInSAR and PSI approach for detection, monitoring, and analysis of land surface deformation in the underground mining environment. First component of the framework involves pre-feasibility assessment of the integrated approach followed by selecting suitable InSAR data sets considering three significant parameters, i.e., terrain, deformation, and system characteristics. The other essential components are preprocessing of the selected & acquired InSAR data for its quality check, the scheme for better detection as well as monitoring of mining subsidence trough(s) using Coherent Small Baseline-DInSAR Time Series (CSB-DTS), scheme for better in-depth monitoring of detected and undetected mining subsidence trough(s) using PSI, and result validation & analysis. Effectiveness of the proposed framework has been validated in the assessment of subsidence due to underground mining activities in one of the largest copper-ore producing belts in India, Khetri Copper Belt.

摘要

该研究涉及开发研究方法框架，以增强星载一体化InSAR和PSI方法在地下采矿环境中检测，监测和分析地表变形的能力。该框架的第一个组成部分涉及对集成方法的预可行性评估，然后选择考虑三个重要参数（即地形，变形和系统特性）的合适的InSAR数据集。其他必不可少的组成部分是对所选和采集的InSAR数据进行预处理以进行质量检查，更好的检测方案以及使用相干小基线-DInSAR时间序列（CSB-DTS）监测开采沉降谷的方案，使用PSI更好地深入监测已发现和未发现的采矿沉降槽，以及结果验证与分析。在印度最大的铜矿生产带之一，Khetri铜带中，由于地下采矿活动而引起的沉陷评估中，所提出框架的有效性已得到验证。