| A quantitative analysis for submarine slope instability of the northern South China Sea due to gas hydrate dissociation | |
| Liu Feng1,2; Wu Shi-Guo1,3; Sun Yun-Bao1,2 | |
| 2010-04-01 | |
| 发表期刊 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 卷号 | 53期号:4页码:946-953 |
| 文章类型 | Article |
| 摘要 | This paper analyzed the factors of instability of submarine slope, and discussed the pore pressure change of submarine sediments in the northern South China Sea due to gas hydrate dissociation. We select the Shenhu area of the northern South China Sea as the study case,made a quantitative assessment of the stability of submarine infinite slope by utilizing limiting equilibrium theory, and acquired the safety factors of different landslide planes assumed beforehand, numerically simulated the effect of gas hydrate dissociation on stability of submarine slope. The results of the study showed that 15% gas hydrate dissociation will lead to submarine slope failure under the condition of water depth 1200 m, sediments depth 200 m, and slope angle 5 degrees Under the same condition of water depth and sediments depth, more percentage of gas hydrate dissociation is needed for submarine slope failure for smaller slope angle. For bigger slope angle such as 20 degrees, only 5% gas hydrate dissociation will lead to submarine slope failure. |
| 关键词 | Gas Hydrate Dissociation Submarine Landslide Submarine Instability South China Sea |
| DOI | 10.3969/j.issn.0001-5733.2010.04.019 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277220400019 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/32773 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.China Univ Petr, Coll Georesources & Informat, Qingdao 266555, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Liu Feng,Wu Shi-Guo,Sun Yun-Bao. A quantitative analysis for submarine slope instability of the northern South China Sea due to gas hydrate dissociation[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(4):946-953. |
| APA | Liu Feng,Wu Shi-Guo,&Sun Yun-Bao.(2010).A quantitative analysis for submarine slope instability of the northern South China Sea due to gas hydrate dissociation.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(4),946-953. |
| MLA | Liu Feng,et al."A quantitative analysis for submarine slope instability of the northern South China Sea due to gas hydrate dissociation".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.4(2010):946-953. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 南海北部陆坡水合物分解引起海底不稳定性的（797KB） | 期刊论文 | 出版稿 | 限制开放 | ODC PDDL | 浏览 | |
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