Collaborative Monitoring of Open Pit Mine Induced Large Scale Landslide with LiDAR DEM and Time Series SAR Data

doi:10.12068/j.issn.1005-3026.2021.12.012

Abstract

Abstract: A collaborative monitoring scheme combining pixel offset tracking(POT) and multi-temporal interferometry (MTI) is proposed， where POT is used during rapid-movement period and MTI is used during slow-movement period. Targeting at the spatial inconsistency between the azimuth-line of sight(Az-LOS) measurements and downslope landslide displacements， a light detection and ranging(LiDAR) digital elevation model(DEM) based conversion method from Az-LOS to downslope direction is also proposed and adopted in the long-term displacement monitoring of the large scale landslide on the south slope in Fushun west open pit mine. By comparing the estimated downslope displacements with GPS measurements， mean error of decimeter level is achieved.

Key words: multi-temporal interferometry; pixel offset tracking; landslide monitoring; open pit mine; digital elevation model

CLC Number:

TP722.6
TP79

WEI Lian-huan， LIU Shan-jun， YANG Tian-hong， ZHAO Ye. Collaborative Monitoring of Open Pit Mine Induced Large Scale Landslide with LiDAR DEM and Time Series SAR Data[J]. Journal of Northeastern University(Natural Science), 2021, 42(12): 1753-1760.

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