publication . Article . 2020

Discrete element numerical simulation of mechanical properties of methane hydrate-bearing specimen considering deposit angles

Yujing Jiang; Yujing Jiang; Sunhao Zhang; Bin Gong; Bin Gong; Peng Yan;
Open Access
  • Published: 28 Jan 2020 Journal: Journal of Natural Gas Science and Engineering, volume 76, page 103,182 (issn: 1875-5100, Copyright policy)
  • Publisher: Elsevier BV
Abstract
Abstract Methane hydrate sediment (MHS) distributes under the seabed in different deposit angles according to the bottom simulating reflector (BSR) exhibitions. The mechanical properties of the combined sediment composed of soil and MHS dominate the stability of the slope. In this work, simulation models that consider the deposit angles, the confining pressures, loading velocities and hydrate saturation (Sh), were generated by using the discrete element method, following which the bi-axial compression of these models is simulated. The deformation response behavior of these models is studied systematically under different loading velocities, deposit angle, and hy...
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doi: 10.1016/j.jngse.2020.103182
handle: 10069/40000
Subjects
free text keywords: Energy Engineering and Power Technology, Deformation (mechanics), Compression (physics), Stiffness, medicine.symptom, medicine, Overburden pressure, Hydrate, Elastic modulus, Composite material, Saturation (chemistry), Materials science, Discrete element method
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