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, Xianghua4; Wang, Yanli3; Yang, Zhiyong2 |
| 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/35468]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.Academy of Railway Sciences Engineering Consult Co., Ltd., Beijing 100081, China 3.Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan 430010, China 4.Second Institute of Oceanography, MNR, Hangzhou 310012, China |
| 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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