|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)|
Undrained shear strength
|Affiliation||Institute of Mechanics, Chinese Academy of Sciences, Beijing, China|
Wang SY,Lu XB,Zhang XH. Experimental study on mechanical properties of clay sediment containing tetrahydroguran hydrate[C],2018:183-186.
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