Experimental Study on Poisson's Ratio of Silty-Fine Sand with Saturation
文献类型：期刊论文
| 作者 | Yan, Kai1; Wang, Yong1; Lai, Xianghua2; Wang, Yanli3; Yang, Zhiyong4 |
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 11期号:2页码:- |
| 关键词 | Poisson's ratio saturation sand bending element S-wave P-wave |
| 英文摘要 | The influence of saturation on the Poisson's ratio v of reservoir sediments has an engineering significance in the field of oil and nature gas exploration. Based on a self-developed combined (BE-EE-RC) test system, under the dehydration path, the Poisson's ratio variation of reservoir silty-fine sand in Hangzhou Bay, China, was investigated. Results show that the P- and S-wave velocities vary non-monotonically with decreasing saturation at different net stresses, and reach a maximum at the optimum saturation S-r((opt)); Biot's theory with respect to variation in V-p with S-r matches well with the measured e data. With a small amount of gas intrusion, Poisson's ratio of saturated sand shows a sudden drop and gradually stabilizes; then, it attenuates slowly and reaches the minimum value at S-r((opt)). Once the saturation degree decreases to the level lower than S-r((opt),) it rapidly increases. Based on the soil-water characteristic curve (SWCC) and mesoscopic evolution of internal pore water morphology, the variation in Poisson's ratio v can be divided into four segments of saturation: the boundary effect stage, the primary transition stage, the secondary transition stage, and the unsaturated residual stage. Ultimately, a prediction model for Poisson ratio's v of the silty-fine sand was proposed to consider the saturation variation. |
| 学科主题 | Engineering ; Oceanography |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000940313300001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35568]  |
| 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.Second Institute of Oceanography (SIO); 3.Ministry of Water Resources; Yangtze River Water Resources Protection Bureau 4.Academy of Railway Sciences Engineering Consult Co. |
| 推荐引用方式 GB/T 7714 | Yan, Kai,Wang, Yong,Lai, Xianghua,et al. Experimental Study on Poisson's Ratio of Silty-Fine Sand with Saturation[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2023,11(2):-. |
| APA | Yan, Kai,Wang, Yong,Lai, Xianghua,Wang, Yanli,&Yang, Zhiyong.(2023).Experimental Study on Poisson's Ratio of Silty-Fine Sand with Saturation.JOURNAL OF MARINE SCIENCE AND ENGINEERING,11(2),-. |
| MLA | Yan, Kai,et al."Experimental Study on Poisson's Ratio of Silty-Fine Sand with Saturation".JOURNAL OF MARINE SCIENCE AND ENGINEERING 11.2(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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