基于D-InSAR技术的老采空区稳定性监测研究

Research of coal mining subsidence monitoring based on D-InSAR technology

科学揭示采动区变形规律是开发利用老采空区的核心环节。文中以淮南矿区为例,基于ALOS数据,利用D-InSAR技术和精细化策略,反演了淮南煤矿采动区2008.10.11~2008.11.26时段三维历史变形场。解译结果表明:(1)位于该时段内宏观上监测到10个动态沉陷区;(2)基于ENVI平台分别定量解析了各采动区历史沉降场,实验结果显示采动区日沉降速率为2.04 mm/d^3.65 mm/d,按照1.67 mm/d稳定判别标准,则此十个采动区均处在活跃阶段,最大变形速率发生在8区。文中研究成果对开发利用煤矿采动地基具有重要参考价值。

Science reveals mining area deformation law is the key link in the development and utilization of old goaf. Taking Huainan mining area as an example, based on ALOS data, using the D -InSAR technology and refinement strategy, inversion of Huainan coal mining area 2008. 10. 11 - 2008. 11.26 time three -dimensional deformation history was done. Interpretation results showed that ： （ 1 ） 10 dynamic subsidence areas were located in the period of macroscopic monitoring; （2） based on ENVI platform each historical subsidence area was analyzed respectively and quantitatively. The experimental results showed that the mining area sedimentation rates were 2.04 mm/d to 3.65 mm/d which were in active stage according ＇to the 1.67 mm/d stability criteria. And the maximum deformation rate occurred in the 8th districts. The research results in this paper had important reference value for the development and utilization of coal mining foundation.