Ionic strength and temperature dependence of rheological behavior of deep-water sedimental slurries
文献类型：期刊论文
| 作者 | Hu, Shijun1,4; Chen, Pan1,4; Wang, Yong1,4; Wei, Changfu1,4; Li, Pengchun2,3 |
| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 265期号:-页码:- |
| ISSN号 | 0029-8018 |
| 关键词 | Deep-water sediment Rheological behavior Ionic strength Temperature Soil mass fraction |
| 英文摘要 | Understanding the rheological behavior of deep-water sedimental slurries is important for assessing the interaction between the deep-water sediment and pipelines. A series of sedimentation and rheological tests have been conducted on the deep-water slurries from the South China Sea, and the ionic strength and temperature dependence of its rheological behavior is investigated. It is shown the ionic strength can significantly influence the yield stress of the slurry through changing its fabric. A critical mass fraction is identified to distinguish the suspension state and contact state in the soil-water system. With a mass fraction less than the critical mass fraction, the slurry is in suspension state, and its yield stress and dynamic moduli increase as temperature increases. With a higher mass fraction, however, the slurry is in contact state, and its yield stress and dynamic moduli decrease with increasing temperature. A theoretical model for the yield stress of the slurries is introduced based on the DLVO theory. The model describes very well the yield stress characteristics of the slurries in the suspension state. The effect of electrostatic repulsive forces on the yield stress is dominant in the suspension state; in the contact state, however, the effect of attractive forces becomes significant. |
| 学科主题 | Engineering ; Oceanography |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:001006231100005 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35281]  |
| 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, Hubei, 430071, PR China 2.Key Laboratory of Ocean and Marginal Sea Geology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, 510301, China 3.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China 4.University of Chinese Academy of Sciences, Beijing, 100049, PR China |
| 推荐引用方式 GB/T 7714 | Hu, Shijun,Chen, Pan,Wang, Yong,et al. Ionic strength and temperature dependence of rheological behavior of deep-water sedimental slurries[J]. OCEAN ENGINEERING,2022,265(-):-. |
| APA | Hu, Shijun,Chen, Pan,Wang, Yong,Wei, Changfu,&Li, Pengchun.(2022).Ionic strength and temperature dependence of rheological behavior of deep-water sedimental slurries.OCEAN ENGINEERING,265(-),-. |
| MLA | Hu, Shijun,et al."Ionic strength and temperature dependence of rheological behavior of deep-water sedimental slurries".OCEAN ENGINEERING 265.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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