Study on the Micro-Mechanical Mechanism of Fine-Grained Marine Sediments Subjected to Shallow Gas Invasion
文献类型：期刊论文
| 作者 | Wang, Yehuan2,3; Wang, Yong2,3; Wang, Yanli1; Chen, Cheng2,3; Kong, Lingwei2,3; Xu, Mengbing2,3 |
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-04-01 |
| 卷号 | 11期号:4页码:- |
| 关键词 | fine-grained marine sediment shallow gas invasion mode micro-mechanical mechanism |
| 英文摘要 | Marine sediment is an important channel for methane leakage from the earth interior to the atmosphere. The investigation of gas invasion in fine-grained marine sediments is of great theoretical and practical significance in marine science and engineering. To study the mechanical mechanisms of fine-grained marine sediments subjected to shallow gas invasion, a gas injection test with a self-developed experimental apparatus was performed, and the gas invasion behavior was investigated. The results showed that the behavior of gas invasion in fine-grained sediments can be divided into different phases; the fracturing direction beta gradually changes from vertical to horizontal, and finally fractures along the roof. Based on the 2D undrained elliptical cavity model and the tensile strength of sediments, considering both tensile and shear failure modes, a discrimination criteria of gas invasion was proposed. It revealed that gas invasion gradually changes from shear failure to tensile failure, and the fracturing angle theta predicted by the criteria is consistent with the experimental phenomenon. |
| 学科主题 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000977078400001 |
| 出版者 | MDPI |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35305]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Ministry of Water Resources; Yangtze River Water Resources Protection Bureau 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 3.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; |
| 推荐引用方式 GB/T 7714 | Wang, Yehuan,Wang, Yong,Wang, Yanli,et al. Study on the Micro-Mechanical Mechanism of Fine-Grained Marine Sediments Subjected to Shallow Gas Invasion[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2023,11(4):-. |
| APA | Wang, Yehuan,Wang, Yong,Wang, Yanli,Chen, Cheng,Kong, Lingwei,&Xu, Mengbing.(2023).Study on the Micro-Mechanical Mechanism of Fine-Grained Marine Sediments Subjected to Shallow Gas Invasion.JOURNAL OF MARINE SCIENCE AND ENGINEERING,11(4),-. |
| MLA | Wang, Yehuan,et al."Study on the Micro-Mechanical Mechanism of Fine-Grained Marine Sediments Subjected to Shallow Gas Invasion".JOURNAL OF MARINE SCIENCE AND ENGINEERING 11.4(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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