Evaluating the Effect of Brine on Water Absorption and Expansion of Red-Layer Mudstone in Central Sichuan Using Digital Image Correlation
文献类型：期刊论文
| 作者 | Huang, Kang1,2; Yu, Fei1; Tong, Kaiwen1; Li, Shichang1; Fu, Zhenghao1; Chen, Shanxiong1; Dai, Zhangjun1 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2023-07-27 |
| 卷号 | 23期号:12页码:13 |
| 关键词 | Digital image correlation Water adsorption characteristic curve Expansion strain Water-rock interaction Crack propagation Hydration expansion |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/IJGNAI.GMENG-8312 |
| 英文摘要 | Red-layer mudstone is a typical expandable rock, that is, it easily expands and deforms in water. This study focused on the dynamic quantitative analysis of the mudstone hygroscopic process and development of strain caused by the hydration expansion of clay, by combining a self-designed simple self-imbibition device with the digital image correlation method. The mudstone samples were self-imbibed in deionized water and salt solutions of different concentrations under the same atmospheric conditions (25 degrees C and 50% humidity). The effects of the salt type and salt concentration on the water absorption quality, expansion rate, crack initiation and expansion, matrix deformation, and water migration of mudstone over time were analyzed. The change in the water absorption capacity of mudstone with time was determined from the water absorption characteristic curve. The location and strain development of the local high-strain area during the water-rock interaction was captured from the full-field strain cloud image. The migration of water on the rock surface at different times was observed using camera photographs. Finally, water absorption was combined with strain, water migration, and crack propagation. The effect of saltwater on the hygroscopic expansion of mudstone was evaluated. (c) 2023 American Society of Civil Engineers. |
| 资助项目 | National Natural Science Foundation of China[42172308] ; Youth Innovation Promotion Association CAS[2022331] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001110299400001 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40020]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Dai, Zhangjun |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Kang,Yu, Fei,Tong, Kaiwen,et al. Evaluating the Effect of Brine on Water Absorption and Expansion of Red-Layer Mudstone in Central Sichuan Using Digital Image Correlation[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2023,23(12):13. |
| APA | Huang, Kang.,Yu, Fei.,Tong, Kaiwen.,Li, Shichang.,Fu, Zhenghao.,...&Dai, Zhangjun.(2023).Evaluating the Effect of Brine on Water Absorption and Expansion of Red-Layer Mudstone in Central Sichuan Using Digital Image Correlation.INTERNATIONAL JOURNAL OF GEOMECHANICS,23(12),13. |
| MLA | Huang, Kang,et al."Evaluating the Effect of Brine on Water Absorption and Expansion of Red-Layer Mudstone in Central Sichuan Using Digital Image Correlation".INTERNATIONAL JOURNAL OF GEOMECHANICS 23.12(2023):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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