Strength and the cracking behavior of frozen sandstone containing ice-filled flaws under uniaxial compression
文献类型：期刊论文
| 作者 | Jia, Hai-liang3; Han, Li3; Zhao, Tao3; Sun, Qiang2; Tan, Xian-jun1 |
| 刊名 | PERMAFROST AND PERIGLACIAL PROCESSES
 |
| 出版日期 | 2022-03-04 |
| 页码 | 16 |
| 关键词 | crack coalescence crack initiation frozen flawed sandstone ice-filled flaws ice-rock interface uniaxial compression |
| ISSN号 | 1045-6740 |
| DOI | 10.1002/ppp.2142 |
| 英文摘要 | Understanding the mechanical properties of frozen flawed rock masses is fundamental to conducting safe rock engineering in frozen rock strata. However, there has been scarce research in this area, especially on key issues such as the strength and deformability of frozen flawed rock masses and failure processes under load. In this paper, frozen flawed sandstone was subjected to uniaxial compression and the cracking process was observed. The influences of flaw inclination angle and freezing temperature on the strength and cracking behavior of frozen flawed sandstone under load were determined. The results show that: (a) the strength of frozen flawed sandstone increases with increases in flaw inclination and decreases in temperature; (b) the flaw inclination has a dramatic influence on both the crack coalescence behavior and the final failure form of frozen flawed samples under compression; and (c) the significant influence of freezing temperature on the cracking behavior of frozen flawed sandstone is caused by the interaction between flaw ice and its surrounding rock. Strengthening of flawed sandstone by freezing results because (i) pore ice provides support and cohesion at the pore scale, while (ii) at the crack scale ice can support the flaw and resist its deformation during compression, and cementation of the ice-rock interface provides normal and tangential cracking resistance. |
| 资助项目 | National Natural Science Foundation of China[41702334] ; Youth Innovation Promotion Association CAS; National Outstanding Youth Science Fund Project of National Natural Science Foundation of China[51922104] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000764971500001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34639]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Tan, Xian-jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China 2.Xian Univ Sci & Technol, Coll Geol & Environm, Xian, Shaanxi, Peoples R China 3.Xian Univ Sci & Technol, Coll Architecture & Civil Engn, Xian, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Hai-liang,Han, Li,Zhao, Tao,et al. Strength and the cracking behavior of frozen sandstone containing ice-filled flaws under uniaxial compression[J]. PERMAFROST AND PERIGLACIAL PROCESSES,2022:16. |
| APA | Jia, Hai-liang,Han, Li,Zhao, Tao,Sun, Qiang,&Tan, Xian-jun.(2022).Strength and the cracking behavior of frozen sandstone containing ice-filled flaws under uniaxial compression.PERMAFROST AND PERIGLACIAL PROCESSES,16. |
| MLA | Jia, Hai-liang,et al."Strength and the cracking behavior of frozen sandstone containing ice-filled flaws under uniaxial compression".PERMAFROST AND PERIGLACIAL PROCESSES (2022):16. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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