Effects of joint surface roughness and orientational anisotropy on characteristics of excavation damage zone in jointed rocks
文献类型：期刊论文
| 作者 | Zhao, Zhihong1; Guo, Tiecheng1; Li, Shaojun2; Wu, Wei3; Yang, Qiang4; Chen, Sicong1 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2020-04-01 |
| 卷号 | 128页码:13 |
| 关键词 | EDZ Joint surface roughness Anisotropy DEM |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2020.104265 |
| 英文摘要 | Investigating the mechanical behavior of the excavation damage zone (EDZ) in jointed rocks is essential for underground openings. In this numerical study, the effects of joint surface roughness and orientational anisotropy on the size and shape of EDZ in jointed rocks were examined, based on a diversion tunnel excavated in columnar jointed rocks at the Baihetan Hydropower Station. The results showed that failure zones are usually at the two ends of the tunnel roof. Both open and shear zones are dependent on the JRC (Joint Roughness Coefficient) averages and standard deviations. With increasing standard deviations of JRC, the depths and areas of both open and shear zones generally increase. As the jointed rocks changing from anisotropic to isotropic, the shapes of EDZ are similar but rotate in jointed rocks. Under effects of water pressures, larger open zones appear in the lateral tunnel walls, and the depths of shear zones increase. |
| 资助项目 | National Key R&D Program of China[2018YFC0407005] ; National Natural Science Foundation of China[51779123] ; National Natural Science Foundation of China[51739006] ; National Natural Science Foundation of China[U1765206] ; Tsinghua University Initiative Scientific Research Program[20151080432] |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000536483800009 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24248]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhao, Zhihong |
| 作者单位 | 1.Tsinghua Univ, Dept Civil Engn, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore 4.Tsinghua Univ, Dept Hydraul Engn, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zhihong,Guo, Tiecheng,Li, Shaojun,et al. Effects of joint surface roughness and orientational anisotropy on characteristics of excavation damage zone in jointed rocks[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2020,128:13. |
| APA | Zhao, Zhihong,Guo, Tiecheng,Li, Shaojun,Wu, Wei,Yang, Qiang,&Chen, Sicong.(2020).Effects of joint surface roughness and orientational anisotropy on characteristics of excavation damage zone in jointed rocks.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,128,13. |
| MLA | Zhao, Zhihong,et al."Effects of joint surface roughness and orientational anisotropy on characteristics of excavation damage zone in jointed rocks".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 128(2020):13. |
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。