Volume 16 Issue 2
Jun.  2010
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Article Navigation >  Journal of Geomechanics  > 2010  >  16(2): 146-158
GAN Jian-jun, HUANG Run-qiu, LI Qian-yin, et al., 2010. FORMATION MECHANISM OF GEO-HAZARDS TRIGGERED BY WENCHUA MS8.0 EARTHQUAKE ALONG DUJIANGYAN-WENCHUAN HIGHWAY. Journal of Geomechanics, 16 (2): 146-158.
Citation: GAN Jian-jun, HUANG Run-qiu, LI Qian-yin, et al., 2010. FORMATION MECHANISM OF GEO-HAZARDS TRIGGERED BY WENCHUA MS8.0 EARTHQUAKE ALONG DUJIANGYAN-WENCHUAN HIGHWAY. Journal of Geomechanics, 16 (2): 146-158.
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FORMATION MECHANISM OF GEO-HAZARDS TRIGGERED BY WENCHUA MS8.0 EARTHQUAKE ALONG DUJIANGYAN-WENCHUAN HIGHWAY

  • 1.

    State key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China

  • 2.

    Sichuan Bureau of Geology and Mineral Resources, Chengdu 610081, China

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  • Received: 2010-05-07
  • Published: 2010-06-28
    Abstract
  • The geological hazards induced by the Wenchuan MS8.0 earthquake along the Dujiangyan-Wenchuan Highway are especially severe and have seriously affected the safe riding along the highway and the reconstructions. In order to prevent and reduce disasters effectively, main geo-hazard type, slope failure modes and its formation mechanism, and the tempo-spitial distribution in the area have been studied on the basis of the field investigations and statistic analysis of available data. The main damage types include debris flow to collapse, cataclastic rocks to collapse, and shatter-subduction type mudslides, oscillation high-speed sliding debris flows along the slope area. Born transformation induced by such disasters have intensive, systematic and subsection characteristic. Thegeologic hazards have many types and are notably divided into sectors; the high and steep rock deposits of complex origin become the main materials of geological hazards; intense earthquake effect and coupling of endogenic and exogenic forces are important factors for formation and occurrence of geological hazards in the area.

     

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