Methane Hydrate (hereafter referred to as MH) is being researched and developed in Japan. In order to investigate the effect of the characteristics of a host sand on the shear behaviour of MH-bearing sands, MH was artificially produced in specimens composed of four kinds of material. In this study, a high stress and low temperature triaxial plane strain testing apparatus was used.
A marked increase in stiffness and strength was observed in all MHbearing materials. An increase in degree of MH saturation led to an increase in the angle of the shear band and the width of the shear band became narrower.
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2015. International Society of Offshore and Polar Engineers