Matric Suction and Volume Characteristics of Compacted Clay Soil under Drying and Wetting Cycles
文献类型：期刊论文
| 作者 | Liu, Guanshi2; Toll, D. G.1; Kong, Lingwei2; Asquith, J. D.1 |
| 刊名 | GEOTECHNICAL TESTING JOURNAL
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 43期号:2页码:464-479 |
| 关键词 | water retention curves shrinkage volume change matric suction clay drying wetting |
| ISSN号 | 0149-6115 |
| DOI | 10.1520/GTJ20170310 |
| 英文摘要 | The influence of drying and wetting cycles on matric suction and volume characteristics of a compacted low-plasticity clay soil was studied experimentally. An apparatus was developed in which soil specimens were placed in direct contact with a high-suction tensiometer, then repeated drying and wetting cycles were applied, with drying by means of evaporation and wetting using the application of water droplets. The matric suction, vertical and radial displacement, and mass change of the specimens were all monitored continuously during the cycles. The equipment is the first to provide natural drying, unconstrained shrinkage, or swelling with continuous measurements of volume, suction, and water content in a way that could readily be used in engineering practice. The results indicated that drying-wetting cycles resulted in accumulated irreversible shrinkage. However, the amount of shrinkage decayed very significantly as the number of cycles increased, and the behavior became almost repeatable after the third cycle. It was also observed that the positions of soil water retention curves under drying-wetting cycles shift downwards with the increasing number of cycles; the larger the number of cycles, the smaller the difference between the curves, and after two or three cycles, the difference became steady. The shape of the curves changed very obviously under the first three drying-wetting cycles but less significantly after this. |
| 资助项目 | Overseas Study Plan 2009 from the Chinese Academy of Sciences ; Natural Science Foundation of China[51279200] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000522031900011 |
| 出版者 | AMER SOC TESTING MATERIALS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23883]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Toll, D. G. |
| 作者单位 | 1.Univ Durham, Dept Engn, South Rd, Durham DH1 3LE, England 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Guanshi,Toll, D. G.,Kong, Lingwei,et al. Matric Suction and Volume Characteristics of Compacted Clay Soil under Drying and Wetting Cycles[J]. GEOTECHNICAL TESTING JOURNAL,2020,43(2):464-479. |
| APA | Liu, Guanshi,Toll, D. G.,Kong, Lingwei,&Asquith, J. D..(2020).Matric Suction and Volume Characteristics of Compacted Clay Soil under Drying and Wetting Cycles.GEOTECHNICAL TESTING JOURNAL,43(2),464-479. |
| MLA | Liu, Guanshi,et al."Matric Suction and Volume Characteristics of Compacted Clay Soil under Drying and Wetting Cycles".GEOTECHNICAL TESTING JOURNAL 43.2(2020):464-479. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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