Numerical simulation of fracture propagation in freezing rocks using the extended finite element method (XFEM)
文献类型：期刊论文
| 作者 | Zhou, Yun4,5; Ma, Wei3; Tan, Xianjun4,5; Chen, Weizhong4,5; Yang, Diansen4,5; Su, Zhouzhou4,5; Zhang, Xi2,5; Xu, Fei1,5 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 148页码:12 |
| 关键词 | Fractured rock mass Frost-heaving pressure Effective volumetric expansion coefficient Fracture propagation |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2021.104963 |
| 英文摘要 | Owing to its importance to rockslides in cold regions, the evolution of heaving pressure, which acts as a driving force for fracture propagation in freezing rocks, was studied using the extended finite element method. For the growth of a fracture, the compounds of migrating water and ice lens deliver pressure from volumetric expansion as water consolidates, which is characterized by an empirical rate law. Satisfying the fracture propagation condition at the fracture tip under a given mixture volume and fracture length can result in a critical pressure level that initiated fracture growth. First, the numerical snap-through solutions of the pressure were validated against previous experimental results. The increase in pressure seemed to be limited at the freezing stage. The realistic parameters used in the empirical law for volumetric expansion rates were determined by fitting the numerical results to the experimental results. Then, parametric studies on fracture growth speeds and pressure limits were performed. The fracture size, fracture toughness of the rock, and parameters of the empirical law had a substantial effect on the variation in heaving pressure and thin fracture aperture. When fracture growth was considered, the heaving pressure tended to decrease, and the fracture propagation speed gradually reduced to zero. |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Outstanding Youth Science Fund Project of National Natural Science Foundation of China[51922104] ; Key Research Program of the Chinese Academy of Sciences[KFZD-SW-423] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018014] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018003] ; Youth Innovation Promotion Association CAS |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000724246400002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/28298]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Tan, Xianjun |
| 作者单位 | 1.Shijiazhuang Tiedao Univ, Struct Hlth Monitoring & Control Inst, Shijiazhuang 050043, Hebei, Peoples R China 2.China Univ Geosci, Fac Engn, Wuhan 430074, Hubei, Peoples R China 3.Texas A&M Univ, Dept Petr Engn, College Stn, TX 77843 USA 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yun,Ma, Wei,Tan, Xianjun,et al. Numerical simulation of fracture propagation in freezing rocks using the extended finite element method (XFEM)[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2021,148:12. |
| APA | Zhou, Yun.,Ma, Wei.,Tan, Xianjun.,Chen, Weizhong.,Yang, Diansen.,...&Xu, Fei.(2021).Numerical simulation of fracture propagation in freezing rocks using the extended finite element method (XFEM).INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,148,12. |
| MLA | Zhou, Yun,et al."Numerical simulation of fracture propagation in freezing rocks using the extended finite element method (XFEM)".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 148(2021):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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