Characteristics and mechanism of rockburst at five deep gold mines in Jiaodong Peninsula of China
文献类型：期刊论文
| 作者 | Xiao, Peng1,2; Li, Diyuan1; Zhao, Guoyan1; Zhu, Quanqi1 |
| 刊名 | INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 171页码:13 |
| 关键词 | Deep gold mine Rockburst characteristics Spalling In -situ stress Rockburst criterion |
| ISSN号 | 1365-1609 |
| DOI | 10.1016/j.ijrmms.2023.105574 |
| 英文摘要 | Rockburst in deep rock engineering poses serious threat to personnel safety and engineering. In order to reveal the rockburst characteristics in deep engineering, the rockburst investigations and rockburst mechanisms based on in-situ stress were carried out at five deep gold mines in Jiaodong Peninsula, China. At the cover depth between 400 m and 600 m, the ground pressure hazards are mainly local spalling. At the cover depth between 600 m and 1000 m, the ground pressure hazards are mainly rockburst, accompanied by serious spalling. When the cover depth is more than 1000 m, in addition to rockburst, the large area collapse occurred in some tunnels. The maximum horizontal principal stress in the northwest of Jiaodong Peninsula is the largest, indicating that the regional in-situ stress field is dominated by horizontal tectonic stress. The average maximum horizontal principal stress direction is about 105 degrees, which is approximately perpendicular to the strike of regional metallogenic fault zone. The increase of in-situ stress is the main factor leading to the serious ground pressure hazards. The tangential stress threshold for rockburst is 8 times the tensile strength of rock at the five gold mines, which is consistent with the stress threshold (8 times tensile strength) leading to brittle failure of rock in Griffith criterion. This indicates that the strain rockburst is caused by the concentration of tensile stress in the micro-cracks of surrounding rock. |
| 资助项目 | Na- tional Natural Science Foundation of China[52074349] |
| WOS研究方向 | Engineering ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001075216900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39605]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Diyuan |
| 作者单位 | 1.Cent South Univ, Sch Resources & Safety Engn, Changsha 410083, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Peng,Li, Diyuan,Zhao, Guoyan,et al. Characteristics and mechanism of rockburst at five deep gold mines in Jiaodong Peninsula of China[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2023,171:13. |
| APA | Xiao, Peng,Li, Diyuan,Zhao, Guoyan,&Zhu, Quanqi.(2023).Characteristics and mechanism of rockburst at five deep gold mines in Jiaodong Peninsula of China.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,171,13. |
| MLA | Xiao, Peng,et al."Characteristics and mechanism of rockburst at five deep gold mines in Jiaodong Peninsula of China".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 171(2023):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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