MONITORING OF SURFACE SUBSIDENCE OF THE MINING AREA BASED ON SBAS

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Zhu, Y.^1¹ 

[1]Faculty of Geomatics, East China Institute of Technology, NanChang, China^1

关键词: D-InSAR;    Small-baseline Subset;    Mining subsidence;    deformation monitoring;   

DOI  :  10.5194/isprs-archives-XLII-3-2603-2018

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

This paper has collected 7 scenes of L band PALSAR sensor radar data of a mine in FengCheng city, jiangxi province, using the Small-baseline Subset (SBAS) method to invert the surface subsidence of the mine. Baselines of interference less than 800m has been chosen to constitute short baseline differential interference atlas, using pixels whose average coherent coefficient was larger than or equal to 0.3 as like high coherent point target, using singular value decomposition (SVD) method to calculate deformation phase sequence based on these high coherent points, and the accumulation of settlements of study area of different period had been obtained, so as to reflect the ground surface settlement evolution of the settlement of the area. The results of the study has showed that: SBAS technology has overcome coherent problem of the traditionality D-InSAR technique, continuous deformation field of surface mining in time dimension of time could been obtained, characteristics of ground surface settlement of mining subsidence in different period has been displayed, so to improve the accuracy and reliability of the monitoring results.

【 授权许可】

CC BY