›› 2011, Vol. 32 ›› Issue (S1): 755-0760.

• Numerical Analysis • Previous Articles     Next Articles

Numerical simulation of macromechanical properties of deep-sea energy soil by discrete element method under simplified bond model

XIAO Yu1, 2, JIANG Ming-jing1, 2, SUN Yu-gang1, 2   

  1. 1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
  • Received:2010-07-30 Online:2011-05-15 Published:2011-05-16

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2003

Abstract: A micro-bond contact model[1–2] proposed and verified by Jiang[3–5] et al. is incorporated into PFC2D developed by Itasca. Then biaxial test is carried out to simulate the mechanical properties of deep-sea energy soil; and comparison analysis with the triaxial test done by Masui [6] et al. is done. The results show that the macromechanical properties of deep-sea energy soil and the influence of gas hydrate can be reflected through the micro-bond contact proposed by Jiang [1, 2] et al.; and the existence of gas hydrate has some contribution to the strength of deep-sea energy soil.

Key words: gas hydrate, energy soil, discrete element method, biaxial test, micro-bond

CLC Number: 

  • TU 443
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