Geomechanical properties of artificial methane hydrate-bearing fine-grained sediments
文献类型：期刊论文
| 作者 | Yang, Dehuan; Yan, Rongtao; Yan, Mengqiu; Lu, Di; Wei, Changfu |
| 刊名 | GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023 |
| 卷号 | 109 |
| 关键词 | Methane hydrate Fine-grained sediment Geomechanical properties Isotropic compression Triaxial compression |
| ISSN号 | 2949-9097 |
| 英文摘要 | A series of isotropic and triaxial compression tests was conducted on artificial methane hydrate-bearing fine-grained sediment (HBFS) specimens prepared via the excess-gas method. It is shown that the swelling index decreases and the yield stress increases linearly with the increase of the hydrate saturation, whereas the compression index is practically independent of hydrate saturation. The HBFS generally exhibits strain-hardening behavior, though strain-softening behavior may occur at low confining net stress and high hydrate saturation. The presence of hydrate can increase the stiffness and shear strength of the HBFS to various degrees, depending upon the applied confining net stress. It is revealed that the effect of hydrate cementation on the shear strength is weakened under high confining net stress conditions, owing to the deterioration of hydrate cemen-tation. The hydrate cementation can influence the shear dilatancy of the HBFS, an effect that becomes less pronounced as the applied confining net stress increases. Based on the experimental results, empirical formu-lations are developed for the yield stress, strength, and shear dilatancy of the HBFS. The experimental results provide a comprehensive dataset for validating the constitutive models of HBFS. |
| 学科主题 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000913727600001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35139]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS 2.Guilin University of Technology; 3.Guilin University of Electronic Technology; |
| 推荐引用方式 GB/T 7714 | Yang, Dehuan,Yan, Rongtao,Yan, Mengqiu,et al. Geomechanical properties of artificial methane hydrate-bearing fine-grained sediments[J]. GAS SCIENCE AND ENGINEERING,2023,109. |
| APA | Yang, Dehuan,Yan, Rongtao,Yan, Mengqiu,Lu, Di,&Wei, Changfu.(2023).Geomechanical properties of artificial methane hydrate-bearing fine-grained sediments.GAS SCIENCE AND ENGINEERING,109. |
| MLA | Yang, Dehuan,et al."Geomechanical properties of artificial methane hydrate-bearing fine-grained sediments".GAS SCIENCE AND ENGINEERING 109(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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