Dynamic mechanical properties of tetrahydrofuran hydrate-bearing silty clay sediments
文献类型：会议论文
| 作者 | Sun FF(孙芳芳); Wang SY(王淑云) ; Zhang XH(张旭辉); 鲁晓兵 Lu X
|
| 出版日期 | 2019 |
| 会议日期 | June 16, 2019 - June 21, 2019 |
| 会议地点 | Honolulu, HI, United states |
| 关键词 | Deformation Dynamic load Failure strength Hydrate-bearing sediment Pore pressure |
| 页码 | 32-35 |
| 英文摘要 | The dynamic mechanical properties of gas hydrate-bearing sediments (GHBS) are of great importance for the safety evaluation of gas hydrate stratum under the earthquake loading and the vibration during engineering activities. Previous research focuses on the static properties of GHBS before and after gas hydrate dissociation. In this paper, the dynamic tri-axial tests on unsaturated tetrahydrofuran hydrate-bearing silty clay sediments (THBS) are conducted under the frequency of 1.0 Hz, the effective confining pressure 1.0 MPa, and relative dynamic load amplitude (dynamic load amplitude/effective confining pressure) of 0– 0.6. When the relative dynamic load amplitude is lower than 0.5, the failure strength of THBS after the dynamic loading is greater than the static failure strength, and dynamic compaction and strengthen effect prevails. While when the relative dynamic load amplitude (DLA) exceeds 0.5, the failure effect dominates, reducing the shear strength of THBS greatly. The pore pressure and deformation develop slowly with the increase of the load time. © 2019 by the International Society of Offshore and Polar Engineers (ISOPE). |
| 会议录 | Proceedings of the International Offshore and Polar Engineering Conference
 |
| 语种 | 英语 |
| ISBN号 | 9781880653852 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/85103]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.College of Engineering, University of Chinese Academy of Sciences, Beijing, China 2.Institute of Mechanics, Chinese Academy of Sciences, Beijing, China |
| 推荐引用方式 GB/T 7714 | Sun FF,Wang SY,Zhang XH,et al. Dynamic mechanical properties of tetrahydrofuran hydrate-bearing silty clay sediments[C]. 见:. Honolulu, HI, United states. June 16, 2019 - June 21, 2019. |
入库方式： OAI收割
来源：力学研究所
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