Chinese Science Bulletin

, Volume 44, Issue 14, pp 1321–1325 | Cite as

Temporal and spatial distribution of microfractures in granites of different structures under triaxial compression and its significance in seismology

  • Liqiang Liu
  • Shengli Ma
  • Jin Ma
  • Xinglin Lei
  • Kusunose K. 
  • Nishizawa O. 
  • Jouniaux L. 
Notes
Received:
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Abstract

The temporal and spatial distribution of microfracturing activity in two kinds of granite under triaxial compression has been studied by using a new acoustic emission system. For Inada granite, there is no clear clustering of acoustic emission events in time and space, thus it is difficult to exactly deduce the time and position of the major fracturing. While for Mayet granite, acoustic emission events are clustered in time and space, so the time and position of the major fracturing can be exactly predicted according to microfracturing process. Such a difference may result from the difference in deformation mode caused by different rock structures.

Keywords

rock structure acoustic emission microfracturing temporal and spatial distribution seismicity 
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Copyright information

© Science in China Press 1999

Authors and Affiliations

  • Liqiang Liu
    • 1
  • Shengli Ma
    • 1
  • Jin Ma
    • 1
  • Xinglin Lei
    • 2
  • Kusunose K. 
    • 2
  • Nishizawa O. 
    • 2
  • Jouniaux L. 
    • 3
  1. 1.Institute of GeologyChina Seismological BureauBeijingChina
  2. 2.Geological Survey of JapanTsukubaJapan
  3. 3.Laboratoire de Geologie & CNRSURAParisFrance

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