SBAS-InSAR技术在矿山开采区沉降监测中的应用

Application of SBAS-InSAR Technology in Settlement Monitoring of Mining Area

文章介绍了SBAS-InSAR技术的工作基本原理,分析了SBAS-InSAR技术的数据处理流程,结合15景矿山ENVISAT ASAR数据,分析了矿山沉降形变特征。研究结果表明:矿山沉降形变量最大的区域位于矿区东部和中南部,北东部具有较弱的形变量,而矿山北西侧基本未见明显的形变显示;矿山东部最大沉降区域的最大累计沉降量可达183.7 mm,平均沉降速率为-50—-30 mm/a的沉降面积约为0.33 km2;GPS监测结果和SBAS-InSAR技术监测结果对比显示,二者的平均误差为1.62 mm,符合我国相关规范精度要求,说明SBAS-InSAR技术所获监测结果精度可靠,可以在矿山沉降形变监测中推广使用。

This paper introduces the working principle of SBAS-InSAR technology,analyzes the data processing flow of SBAS-InSAR technology,and analyzes the characteristics of mine settlement deformation combined with the data of ENVISAT ASAR in 15 scenic mine.The results show that the region with the largest amount of mine subsidence deformation is located in the eastern and middle south of the mining area,and the North East has weak shape variables,while the North west side of the mine has no obvious deformation display,and the maximum cumulative settlement area in the eastern part of the mine is up to 183.7 mm,and the average settlement rate is-50—-30 mm/a the settlement area is about 0.33 km^2;The comparison between GPS monitoring results and SBAS-InSAR technical monitoring results shows that the average error of the two is 1.62 mm,which conforms to the relevant standard precision requirements in China,and shows that the monitoring results obtained by SBAS-In SAR technology are reliable and can be popularized and used in mine settlement deformation monitoring.