Spatiotemporal Characteristics and Triggering Factors Analysis of Landslide Deformation in Nanfen Iron Mine Based on InSAR Technology
The Nanfen open-pit iron mine area of Benxi city,Liaoning province,experiences so frequent landslides to be focused.DInSAR and PSInSAR techniques are used to calculate deformations of the mine slope and analyzes the results in conjunction with rainfall and structural data.The conclusions are as follows:(1)DInSAR results indicate that the slope deformation in the mine area is significant in both the line-of-sight and vertical directions,with horizontal deformation showing a southwest sliding trend,and the sliding amplitude being greater than that in the vertical direction.The maximum slope direction shows significant subsidence.PSInSAR results indicate that the slope exhibited significant sliding between April 8,2021 and August 18,2021.(2)There is a strong positive correlation between slope deformation and rainfall,with a correlation coefficient of 0.93.(3)As elevation decreases,the rate of slope landslide subsidence increases.This study demonstrates that InSAR technology is highly effective for monitoring landslides in the Nanfen open-pit iron mine area.
万方数据
维普
