Title | The effects of disseminated methane hydrate on the dynamic stiffness and damping of a sand |
Publication Type | Journal Article |
Year of Publication | 2005 |
Authors | Clayton, CRI, Priest, JA, Best, AI |
Journal | Géotechnique |
Volume | 55 |
Pagination | 423-434 |
ISBN Number | 0016-8505 |
Abstract | Methane hydrates are ice-like compounds that can exist only under restricted thermobaric conditions, at low temperatures or under high ambient pressure. They are important because of their potential contributions as a future source of energy, to global warming, and as a possible trigger for long run-out submarine slope instability. This paper describes laboratory experiments to synthesise disseminated methane hydrates and to characterise them under small-strain dynamic loading in the resonant column apparatus. The effects of depositing varying quantities of methane hydrate within a sand are investigated by reference to their shear and bulk modulus, and damping, over a range of isotropic effective stress. Results are compared with those obtained on the same sand without hydrate bonding and after dissociation. |
- Log in to post comments
- Google Scholar