Soil Water Retention and Pore Characteristics of Intact Loess Buried at Different Depths
文献类型：期刊论文
| 作者 | Hou, Xiaokun1,2; Qi, Shengwen1,2; Liu, Fangcui1,2 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 15期号:20页码:10 |
| 关键词 | Loess Plateau of China intact loess soil water retention curve pore size distribution buried depth |
| DOI | 10.3390/su152014890 |
| 英文摘要 | Surface water infiltration is a primary factor responsible for engineering challenges and geological disasters on the Loess Plateau of China (LPC). Due to the extensive groundwater in this region, surface water must pass through thick unsaturated zones to recharge the groundwater reservoirs. Exploring the unsaturated hydraulic characteristics of loess, especially at varying depths, may significantly contribute to disaster prevention and mitigation and the pursuit of sustainable development in the Loess Plateau. The soil-water characteristic curve (SWCC), intricately linked to the soil's pore structure, is a critical hydraulic parameter of loess. An exploration well with a depth of 30 m was excavated in the LPC to obtain intact specimens at depths of 5 m, 15 m, and 25 m. Basic physical property tests, SWCC measurements, and particle size distribution (PSD) analyses were conducted. Additionally, the relationship between PSD and SWCC is discussed in this paper. The findings highlight the influence of depth on the dominant pore size and distribution density, both of which decreased with increasing depth. The air occlusion value of the SWCC experienced an increase, and the slope of the SWCC in the transition zone exhibited consistency. These observations underscore the pivotal role played by pore structure in shaping the soil's water-retention behavior. Furthermore, predictions based on PSD data demonstrated excellent accuracy in replicating the wetting SWCC of loess over a wide suction range (e.g., 10-104 kPa). |
| WOS关键词 | CHARACTERISTIC CURVES ; COLLAPSE BEHAVIOR ; UNSATURATED LOESS ; PLATEAU ; PREDICTION ; MECHANISM |
| 资助项目 | Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001093522900001 |
| 资助机构 | Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. ; Additional thanks are given to Tonglu Li, Ping Li, Quanli Zhao, and Shuang Wu for the help in sampling and conducting the experiment. |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/110691]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Hou, Xiaokun |
| 作者单位 | 1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hou, Xiaokun,Qi, Shengwen,Liu, Fangcui. Soil Water Retention and Pore Characteristics of Intact Loess Buried at Different Depths[J]. SUSTAINABILITY,2023,15(20):10. |
| APA | Hou, Xiaokun,Qi, Shengwen,&Liu, Fangcui.(2023).Soil Water Retention and Pore Characteristics of Intact Loess Buried at Different Depths.SUSTAINABILITY,15(20),10. |
| MLA | Hou, Xiaokun,et al."Soil Water Retention and Pore Characteristics of Intact Loess Buried at Different Depths".SUSTAINABILITY 15.20(2023):10. |
入库方式： OAI收割
来源：地质与地球物理研究所
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