基于SBAS-InSAR技术的煤炭坝矿区地表沉降监测与分析

Surface Settlement Monitoring and Analysis of Coal Dam Mining Area Based on SBAS-InSAR Technology

为满足能源的需求,煤炭坝矿区对煤矿进行了大规模的开采,给当地环境带来了巨大的危害。传统监测方法已无法满足监测要求,InSAR技术凭借其大范围、无接触、监测精度高的优点在矿区沉降监测中广泛应用。本文基于SBAS-InSAR对11景ALOS1数据进行处理,获取了煤炭坝矿区2008年7月至2011年1月期间的时序形变结果和平均沉降速率。结果发现多处煤矿开采区地面沉降剧烈,通过对时序形变结果进行分析,得出在不同的矿区有不同的形变特征。监测结果对当地城镇规划和地质灾害的预防有一定的指导意义。

In order to meet the energy demand,the coal dam mining area has carried out large-scale mining of coal mines,which has brought huge disasters to the local environment.Traditional monitoring methods cannot meet the monitoring requirements.InSAR technology is widely used in mining subsidence monitoring due to its advantages of large-scale,non-contact,and high monitoring accuracy.Based on SBAS-InSAR,11 scenes of ALOS1 data were processed in this paper,and the time series deformation results and average settlement rate of coal dam mining area from July 2008 to January 2011 were obtained.As a result,it was found that the ground subsidence in several coal mining areas was severe.By analyzing the time series deformation results,it was concluded that there are different deformation characteristics in different mining areas.The monitoring results have certain guiding significance for local town planning and prevention of geological disasters.