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Numerical study on channel reservoir induced earthquake

  • CAO Jian-Ling ,
  • SHI Yao-Lin
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  • 1. Institute of Earthquake Science, Chinese Earthquake Adiministration,Beijing 100036,China;
    2. Laboratory of Computational Geodynamics, Graduate University, Chinese Academy of Sciences, Beijing 100049,China

Received date: 2010-01-18

  Revised date: 2010-05-14

  Online published: 2011-01-20

Abstract

We modeled the impoundment induced stress change in channel reservoir by two-dimensional finite element method.We calculated Coulomb failure stress change on the fault striking parallel to the major axis of reservoir.Compared to the regional stress field,the compressive stress caused by impoundment is small and is most confined within several kilometers depth.If the background stress is in favor of normal faulting some faults with certain dips and depths would come closer to failure,while if the background stress is in favor of shallow thrust those thrusts would be safer after reservoir impoundment.

Cite this article

CAO Jian-Ling , SHI Yao-Lin . Numerical study on channel reservoir induced earthquake[J]. Journal of University of Chinese Academy of Sciences, 2011 , 28(1) : 19 -26 . DOI: 10.7523/j.issn.2095-6134.2011.1.004

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