Experimental study on mechanical properties of clay sediment containing tetrahydroguran hydrate
Wang SY(王淑云) ; Lu XB(鲁晓兵) ; Zhang XH(张旭辉)
Source Publication Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
Conference Name 28th International Ocean and Polar Engineering Conference, ISOPE 2018
Conference Date June 10, 2018 - June 15, 2018
Conference Place Sapporo, Japan
Abstract Based on remolded clay sediment obtained from a certain area in the South China Sea, a series of tri-axial unconsolidated untrained compression tests on clay sediment containing tetrahydrofuran hydrate were performed under the conditions of different hydrate saturation and confining pressure. The stress-strain curve of clay sediment containing hydrate consists of three stages: elastic (when strain is less than 1.5%), plastic (when strain is between 2% and 6%) and strain hardening (when strain is greater than 6%) stage, and very different from that of clay sediment which behaves only plastic failure. Moreover, the undrained shear strength of clay sediment containing hydrate increases about 1~7 times than that of clay sediment and decreases by 50% after hydrate dissociation. Copyright © 2018 by the International Society of Offshore and Polar Engineers (ISOPE)
Keyword Arctic engineering
Undrained shear strength
Indexed By EI
Document Type 会议论文
Affiliation Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
Recommended Citation GB/T 7714
Wang SY,Lu XB,Zhang XH. Experimental study on mechanical properties of clay sediment containing tetrahydroguran hydrate[C]Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018,2018:183-186.
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