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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)
2018
会议名称28th International Ocean and Polar Engineering Conference, ISOPE 2018
会议日期June 10, 2018 - June 15, 2018
会议地点Sapporo, Japan
会议录名称Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
页码183-186
摘要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)
关键词Arctic engineering Compression testing Failure (mechanical) Hydrates Hydration Mechanical properties Strain hardening Stress strain curves Clay sediments Confining pressures Hydrate dissociation Hydrate saturation Strength Stress strain Tetrahydrofuran hydrate Undrained shear strength
ISBN号9781880653876
收录类别EI
语种英语
文献类型会议论文
条目标识符http://dspace.imech.ac.cn/handle/311007/78006
专题流固耦合系统力学重点实验室
作者单位Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
推荐引用方式
GB/T 7714
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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