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Journal of Earth Science

, Volume 24, Issue 3, pp 449–456 | Cite as

Detecting surface subsidence in coal mining area based on DInSAR technique

  • Shaochun Dong (董少春)
  • Hongwei Yin (尹宏伟)
  • Suping Yao (姚素平)
  • Fei Zhang (张飞)
Article

Abstract

Coal is the primary energy resource in China. Thousands of underground coal mines are operating in China and cause severe land subsidence, leading to many environmental and engineering problems. Huainan (淮南) coal mine is the largest coal mining area in East China. Surface subsidence associated with Huainan coal mining activities has been monitoring by DInSAR (differential synthetic aperture radar) techniques in this study. Four ASAR (advanced SAR) pairs from 2009 to 2010 are selected to perform 2-pass DInSAR processing with spatial and temporal baselines suitable for subsidence monitoring. The subsidence maps generated from these pairs show that the extension of subsidence is consistent with the field observation. Quantitative measurements indicated that the magnitudes of subsidence are increased with the development of underground coal mining exploitation. This study demonstrates that DInSAR technique is effective for surface subsidence monitoring in coal mining area. Limitations and recommendations both in the adopted method and auxiliary data are also discussed.

Key Words

surface subsidence DInSAR 2-pass underground coal mining Doris (Delft object-oriented interferometric software) 

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Copyright information

© China University of Geosciences and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Shaochun Dong (董少春)
    • 1
  • Hongwei Yin (尹宏伟)
    • 1
  • Suping Yao (姚素平)
    • 1
  • Fei Zhang (张飞)
    • 1
  1. 1.School of Earth Sciences and EngineeringNanjing UniversityNanjingChina

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