Classification of mechanisms of induced earthquakes: From a view of rock mechanics

J. Q. Kang, Jianbo Zhu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The induced earthquake has attracted a lot of attentions in the world recently. The earthquakes induced by fluid injection and extraction, reservoir impoundment and mining/rock removal have been reported, studied and reviewed in a number of literatures. In this paper, from a view of rock mechanics, three fundamental mechanisms are summarized, i.e., the increase of pore pressure, the change of stress, and the change of frictional coefficient. The stimulation of reservoir-related earthquakes and earthquakes induced by fluid injection are sufficiently interpreted by a Coulomb-Mohr failure criterion and effective stress law in the saturated rock. The mining induced earthquakes mainly result from the change of stress. More remarkably, additional physical or chemical effects of fluids may lead to weakening of materials in fault zones owing to stress corrosion.
Original languageEnglish
Title of host publicationRock Dynamics
Subtitle of host publicationFrom Research to Engineering - 2nd International Conference on Rock Dynamics and Applications, ROCDYN 2016
PublisherCRC Press/Balkema
Pages315-320
Number of pages6
ISBN (Print)9781138029538
Publication statusPublished - 1 Jan 2016
Event2nd International Conference on Rock Dynamics and Applications, ROCDYN 2016 - Suzhou, China
Duration: 18 May 201619 May 2016

Conference

Conference2nd International Conference on Rock Dynamics and Applications, ROCDYN 2016
CountryChina
CitySuzhou
Period18/05/1619/05/16

ASJC Scopus subject areas

  • Geology

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