Hydro-mechanical coupling characteristics and damage constitutive model of low-permeability granite under triaxial compression
文献类型：期刊论文
| 作者 | Zheng, Zhi; Xu, Hongyu; Wang, Wei; Mei, Guoxiong; Liu, Zaobao; Zheng, Hong; Huang, Shuling |
| 刊名 | INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 32期号:2页码:235 |
| ISSN号 | 1056-7895 |
| 关键词 | Triaxial compression test permeability hydro-mechanical coupling damage constitutive model compaction effect |
| 英文摘要 | To investigate the effect of hydro-mechanical coupling characteristic in low-permeability hard rocks during the excavation of groundwater-sealed energy cavern and hydraulic engineering tunnels or chambers, triaxial compression tests were conducted on engineering granite under different confining and seepage pressures. The mechanical properties, such as the strength and deformation parameters, of granite under hydro-mechanical coupling condition were studied. The permeability of the granite under different stresses first decreases, then stabilizes, and then increases significantly until the final abrupt change, and the inflection point of the abrupt change in permeability tends to be in advance as the confining pressure increases or the seepage pressure decreases. Based on the statistical damage theory and test result, combined with the Mogi-Coulomb strength criterion, a hydro-mechanical coupling statistical damage constitutive model that considers the rock damage threshold and the initial compaction effect was proposed, and the proposed mechanical model was verified based on the test results under different confining and seepage pressures. The proposed mechanical model was further applied to predict permeability catastrophes during rock fracturing and achieves good results. This study provides a theoretical basis for the prevention and control of hydro-mechanical coupled disasters in rock engineering. |
| 学科主题 | Materials Science ; Mechanics |
| 语种 | 英语 |
| 出版者 | SAGE PUBLICATIONS LTD |
| WOS记录号 | WOS:000878337000001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35521]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Hohai University; 2.Northeastern University - China; 3.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 4.Ministry of Water Resources; Yangtze River Water Resources Protection Bureau 5.Guangxi University; |
| 推荐引用方式 GB/T 7714 | Zheng, Zhi,Xu, Hongyu,Wang, Wei,et al. Hydro-mechanical coupling characteristics and damage constitutive model of low-permeability granite under triaxial compression[J]. INTERNATIONAL JOURNAL OF DAMAGE MECHANICS,2023,32(2):235. |
| APA | Zheng, Zhi.,Xu, Hongyu.,Wang, Wei.,Mei, Guoxiong.,Liu, Zaobao.,...&Huang, Shuling.(2023).Hydro-mechanical coupling characteristics and damage constitutive model of low-permeability granite under triaxial compression.INTERNATIONAL JOURNAL OF DAMAGE MECHANICS,32(2),235. |
| MLA | Zheng, Zhi,et al."Hydro-mechanical coupling characteristics and damage constitutive model of low-permeability granite under triaxial compression".INTERNATIONAL JOURNAL OF DAMAGE MECHANICS 32.2(2023):235. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。