Variable-Compliance-Type Constitutive Model for Toyoura Sand Containing Methane Hydrate

摘要

In this study, the applicability of variable-compliance-type constitutive model to triaxial compression test of Toyoura sand containing synthetic methane hydrate was examined as the first step towards formulation of mechanical properties of methane hydrate reservoirs. Parameters used in the constitutive model were determined by alternating strain rate triaxial compression tests. The calculated results by the model were compared with the previously experimental results. It was found that the model examined was one of promising models for sand containing methane hydrate.