ZHANG Xuhui, LU Xiaobing, WANG Shuyun, LI Qingping, YAO Haiyuan. EXPERIMENTAL STUDY ON THE POSSIBLE STRATUM FAILURE CAUSED BY FAST THERMAL INDUCED HYDRATE DISSOCIATION[J]. Marine Geology & Quaternary Geology, 2011, 31(1): 157-164. DOI: 10.3724/SP.J.1140.2011.01157
Citation: ZHANG Xuhui, LU Xiaobing, WANG Shuyun, LI Qingping, YAO Haiyuan. EXPERIMENTAL STUDY ON THE POSSIBLE STRATUM FAILURE CAUSED BY FAST THERMAL INDUCED HYDRATE DISSOCIATION[J]. Marine Geology & Quaternary Geology, 2011, 31(1): 157-164. DOI: 10.3724/SP.J.1140.2011.01157
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EXPERIMENTAL STUDY ON THE POSSIBLE STRATUM FAILURE CAUSED BY FAST THERMAL INDUCED HYDRATE DISSOCIATION

  • 1 Institute of mechanics, Chinese Academy of Sciences, Beijing 100190;

  • 2 COONC, Beijing 100027

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  • Received Date: September 20, 2010
  • Revised Date: October 10, 2010
    Graphical Abstract
    • Abstract
  • Hydrate dissociation in marine deposits may cause large disasters. Experiments are carried out to study the failure conditions and modes caused by the dissociation of hydrate. A rectangular model box and a cylindrical model box are designed to simulate the two-dimensional and one-dimensional conditions respectively. It is shown that kinds of failure modes, including slowly sliding and settlement, layered destruction and burst, occur with the thermal dissociation of hydrate happened fast or slow and for different hydrate deposit and cover deposit (such as the heterogeneity of the deposit, permeability of the cover layer). Each kind of these failures is a severe threat to engineering.
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    • References (18)
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