A unified model for frost wedging in an open fissure under unidirectional freezing
文献类型：期刊论文
| 作者 | Zheng, Peichao6,7; Tan, Xianjun6; Jia, Hailiang8; Shen, Kai6,7; Su, Zhouzhou2,3; Zhou, Yun6; Shataer, Reziwanguli4; Xie, Yi5; Wang, Dong5; Tian, Siming1 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 176页码:15 |
| 关键词 | Frost wedging Ice wedges Crack propagation Jointed hard rocks Water -ice phase transition Frost heaving pressure |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2024.105726 |
| 英文摘要 | The propagation of joints and fissures, included by the frost heaving pressure arising from the water-ice phase transition is considered as frost wedging. This process is widely observed and plays a crucial role in weathering of jointed hard rocks in cold regions. Despite some fundamental results achieved in former experimental studies, a unified theoretical model is still absent, hindering a thorough understanding of this process. To further explore the mechanism of frost wedging during the freezing process, this paper firstly carries out a frost heave test on a rock block bearing a single open fissure. The results indicate that the evolution of frost heaving pressure in the fissure can be divided into four stages: sealing of the open fissure by ice wedge, ice wedge slipping, crack propagation, as well as stabilization of the ice-filled fissure. Based on the laboratory test results, a unified model for the frost heaving pressure in a single open fissure is established, which comprehensively takes into account the mechanical interaction between ice, water and rock. The model is validated by the test result, and it can reasonably describe the formation of the sealing conditions and the process of crack propagation. Fracture of the ice-rock interface near the free surface increases the likelihood of ice wedge slip, while frost wedging mainly damages geological bodies during crack propagation. |
| 资助项目 | National Natural Science Foundation of China[52279119] ; National Natural Science Foundation of China[51991392] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) of China[2019QZKK0904] ; Science and Technology Planning Project of Xizang Autonomous Region, China[XZ202201ZY0021G] ; Youth Innovation Promotion Association, Chinese Academy of Sciences |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001218268000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41290]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Tan, Xianjun |
| 作者单位 | 1.China Railway Econ & Planning Res Inst, Beijing 100000, Peoples R China 2.State Key Lab Bridge Intelligent & Green Construct, Wuhan 430034, Hubei, Peoples R China 3.China Railway Bridge Sci Res Inst Co Ltd, Beijing, Peoples R China 4.Gezhouba Xinjiang Engn Co Ltd, Urumqi 830000, Xinjiang, Peoples R China 5.China Railway Eryuan Engn Grp Co Ltd, Chengdu 610031, Sichuan, Peoples R China 6.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 8.Xian Univ Sci & Technol, Coll Architecture & Civil Engn, Xian 710054, Shanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Peichao,Tan, Xianjun,Jia, Hailiang,et al. A unified model for frost wedging in an open fissure under unidirectional freezing[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2024,176:15. |
| APA | Zheng, Peichao.,Tan, Xianjun.,Jia, Hailiang.,Shen, Kai.,Su, Zhouzhou.,...&Chen, Weizhong.(2024).A unified model for frost wedging in an open fissure under unidirectional freezing.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,176,15. |
| MLA | Zheng, Peichao,et al."A unified model for frost wedging in an open fissure under unidirectional freezing".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 176(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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