ICGCM Papers:
Ground Control Monitoring Systems and Practices
 
 
Time Dependent Mining Induced Subsidence Measured By Differential Interferometric Synthetic Aperture Radar
33rd International Conference on Ground Control in Mining
Time Dependent Mining Induced Subsidence Measured By Differential Interferometric Synthetic Aperture Radar
by
Jessica M WempenMichael K Mccarter, University of Utah, Salt Lake City, United States
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Author's Presentation PPT
[Conference] 33rd International Conference on Ground Control in Mining
[Price] Free  [Comments] 0
[Topical Area] Ground Control Monitoring Systems and Practices
[Author] Jessica M WempenMichael K Mccarter, University of Utah, Salt Lake City, United States
[Abstract] 
Key Conclusions:
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Using DInSAR to evaluate subsidence over large regions with relatively long time scales has the potential to quantify the future subsidence potential, as well as the impact of subsidence in the mining region. Subsidence data generated using DInSAR can supplement data from traditional subsidence monitoring methods.
Key Findings:
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In this mining region, surface subsidence is generated primarily by extraction of trona using retreating longwalls. Additionally, trona is extracted by solution mining which also generates measurable surface subsidence. The maximum subsidence measured by DInSAR for one of the mines totaled 1.3 m for the period from December 2007 to March 2011.
Objective of the Paper:
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This paper evaluates the use of DInSAR to measure mining induced surface subsidence. Nine sets of interferometric data from the Japanese satellite ALOS were processed using DInSAR to generate displacement maps for a group of trona mines in Southwest Wyoming.
Problem Statement:
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Subsidence monitoring has traditionally measured surface deformation over a relatively small area. Differential Interferometric Synthetic Aperture Radar (DInSAR) has the potential to generate subsidence data on a regional mining scale with a relatively high data density.