Predicting the shear characteristics of rock joints with asperity degradation and debris backfilling under cyclic loading conditions
文献类型：期刊论文
| 作者 | Li, Yingchun; Wu, Wei; Tang, Chun'an; Liu, Bo |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2019 |
| 卷号 | 120期号:-页码:108-118 |
| 关键词 | Rock joint Cyclic shear Waviness and unevenness Asperity degradation Debris backfilling |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2019.06.001 |
| 英文摘要 | This study presents a constitutive model to predict the shear behavior of rock joints under cyclic loading. The model focuses on asperity degradation and debris backfilling during a complete shear cycle. The degradation of two-order asperity is associated with the evolution of waviness and unevenness based on the classic wear theory. The produced debris significantly influences the joint shear behavior in the subsequent shear processes, and its thickness is dependent on shear displacement, joint length, as well as worn area and wavelength of asperities. The model particularly considers the dilation angles of waviness, unevenness, and backfilled debris at different processes during the shear cycle. The validation results show that the model can well predict the shear behavior of regularly shaped joints, but the accurate prediction for irregularly shaped joints depends on the quantitative description of joint surface roughness. The proposed model uses the quantitative description of joint profiles to evaluate the shear behavior of rock joints, which is more practical than previous models relying on empirical judgement or data back analysis. |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000481575700010 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/14922]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore; 2.Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China; 3.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 | Li, Yingchun,Wu, Wei,Tang, Chun'an,et al. Predicting the shear characteristics of rock joints with asperity degradation and debris backfilling under cyclic loading conditions[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2019,120(-):108-118. |
| APA | Li, Yingchun,Wu, Wei,Tang, Chun'an,&Liu, Bo.(2019).Predicting the shear characteristics of rock joints with asperity degradation and debris backfilling under cyclic loading conditions.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,120(-),108-118. |
| MLA | Li, Yingchun,et al."Predicting the shear characteristics of rock joints with asperity degradation and debris backfilling under cyclic loading conditions".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 120.-(2019):108-118. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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