Abstract
This study presents a numerical investigation into the mechanical behavior of pore-filling type methane hydrate bearing sediments (MHBS) using the discrete element method. Based on the available experimental data of methane hydrate (MH) samples, MH is modeled as strong bonded clusters. A series of drained triaxial compression tests are simulated and the results show that for the pore-filling type MHBS with MH saturation from 5% to 20%, a higher MH saturation induces a slightly higher shear strength and slightly larger dilatancy. The inclination of the critical state line on the q − p′ plane increases when MH saturation increases. In addition, the evolution rule of deviator fabrics of the strong contact is similar to that of stress ratio q/p′-axial strain.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Collett, T.S., Kuuskraa, V.A.: Hydrates contain vast store of world gas resources. Oil Gas J. 96(19), 90–95 (1998)
Kvenvolden, K.A.: Methane hydrate—a major reservoir of carbon in the shallow geosphere? Chem. Geol. 71(1–3), 41–51 (1988)
Waite, W.F., et al.: Physical properties of hydrate-bearing sediments. Rev. Geophys. 47, 465–484 (2009)
Masui, A., Haneda, H., Ogata, Y., Aoki, K.: Effects on methane hydrate formation on shear strength of synthetic methane hydrate sediments. In: Proceedings of the 15th international offshore and polar engineering conference, pp. 364–369. International Society of Offshore and Polar Engineers, Seoul (2005)
Hyodo, M., Yoneda, J., Yoshimoto, N., Nakata, Y.: Mechanical and dissociation properties of methane hydrate-bearing sand in deep seabed. Soils Found. 53, 299–314 (2013)
Yu, Y., Cheng, Y.P., Xu, X., Soga, K.: Discrete element modelling of methane hydrate soil sediments using elongated soil particles. Comput. Geotech. 80, 397–409 (2016)
Shen, Z.F., Jiang, M.J.: DEM simulation of bonded granular material. Part II: extension to grain-coating type methane hydrate bearing sand. Comput. Geotech. 75, 225–243 (2016)
Cundall, P.A., Strack, O.D.L.: A discrete numerical model for granular assemblies. Géotechnique 29(1), 47–65 (1979)
Kuhn, M.R., OVAL and OVALPLOT: Programs for analyzing dense particle assemblies with the discrete element method. http://faculty.up.edu/kuhn/oval/doc/oval_0618.pdf. Accessed 28 Feb 2018
Acknowledgements
This work was funded by the National Natural Science Foundation of China with Nos. 51639008 and 51579178, Major Project of Chinese National Programs for Fundamental Research and Development (973 Program) with No. 2014CB046901. All of these supports are greatly appreciated.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Switzerland AG
About this paper
Cite this paper
Jiang, M., Liu, J., He, J. (2018). Investigating the Mechanical Behavior of Pore-Filling Type Methane Hydrate Bearing Sediments by the Discrete Element Method. In: Wu, W., Yu, HS. (eds) Proceedings of China-Europe Conference on Geotechnical Engineering. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-97112-4_40
Download citation
DOI: https://doi.org/10.1007/978-3-319-97112-4_40
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-97111-7
Online ISBN: 978-3-319-97112-4
eBook Packages: EngineeringEngineering (R0)