InSAR技术监测矿山沉陷盆地技术研究

Study on monitoring mine subsidence basin using D-InSAR

InSAR技术具有大面积、短周期、连续快速、高精度、高密度的监测特点,可以全天时、全天候工作,对微小变形具有高敏感度。在InSAR技术基础上发展出来的D-In SAR技术是获取矿区地表形变量的一种新方法。文中首先介绍了二轨法D-In SAR技术测量原理,结合GAMMA软件各模块的功能及相关程序,以某矿区某矿为实验区域,将获取的沉降信息与预测软件的预计结果进行定量分析,并与传统监测方法得到的沉降数据进行定量对比分析,两种方法的平均误差为8.97 mm,标准偏差为9.68 mm,监测结果大致相符,表明用D-InSAR方法监测能较好地反应地表沉降情况。

InSAR technology had the advantages of large area,short cycle,high precision and high density. It could work continuously,rapidly and all-time,with high sensitivity for small deformation. The D-In SAR technology developed on the basis of InSAR technology was a new method to get the mine tiny surface deformation. In this paper,the basic principles of two rails D-In SAR technique measuring was introduced,combined with the functions and related procedures of each module of the GAMMA software,taking a mine in a mining area as an experimental area,the obtained settlement information and the prediction results of the prediction software were quantitatively analyzed,and quantitatively compared with the settlement data obtained by traditional monitoring methods. The average error was 8. 97 mm. The standard deviation was 9. 68 mm. The monitoring results were broadly in line. It showed that D-In SAR could better reflect the situation of monitoring surface subsidence.