Investigation of Mining-Induced Fault Reactivation Associated with Sublevel Caving in Metal Mines
文献类型：期刊论文
| 作者 | Xia, Kaizong1,2; Chen, Congxin1,2; Wang, Tianlong1,2; Yang, Kuoyu3; Zhang, Chuqiang4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 55期号:10页码:5953 |
| 关键词 | Metal mine Underground mining Sublevel caving mining Ground movement Fault reactivation Deformation and failure |
| ISSN号 | 0723-2632 |
| 英文摘要 | The long-term deformation of the Jinshandian Iron-ore Mine in China was monitored in situ, and the failure characteristics of the underground roadways and ground surface were analyzed. The mechanisms responsible for the mining-induced fault reactivation associated with non-pillar sublevel caving were subsequently revealed. When the quality of the overlying strata above the mined-out areas is relatively good, columns in the surrounding rock masses in the abutment pressure zone that are cut by joints with high dip angles will be subject to collapse, which causes significant reactivation of the faults. The failure of the surrounding rock masses in the abutment pressure zone has three distinct stages: failure of the columns, fault reactivation, and caving of the fault rock mass. In this event, the fault suffers large-scale reactivation which causes large-scale movement of the overlying strata. However, if the overlying strata are of relatively poor quality, the mining of the orebodies induces the roof strata to cave and this caving rapidly extends to the ground level. In this case, only the faults in the overlying strata above the mined-out areas are subjected to reactivation, and the scale of the movement observed in the overlying strata and ground surface is small. Due to the distinctive nature of the collapse and destruction that occurs in the columns in the abutment pressure zone, the scope of the fracturing in the surrounding rock masses is significantly larger than the scope of the mined-out areas (especially in the horizontal direction). Because of this, the ground movement angle associated with non-pillar sublevel caving in metal mines needs to be redefined. It is thus defined as the angle between the horizontal direction and an oblique line drawn from the bottom corner point of the actual fractured zone of the surrounding rock mass to an extended point on the ground surface movement curve. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000817067800002 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35410]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, People’s Republic of China 3.School of Civil Engineering and Architecture, Henan University, Kaifeng, Henan 475004, People’s Republic of China 4.School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, Hubei 430068, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Xia, Kaizong,Chen, Congxin,Wang, Tianlong,et al. Investigation of Mining-Induced Fault Reactivation Associated with Sublevel Caving in Metal Mines[J]. ROCK MECHANICS AND ROCK ENGINEERING,2022,55(10):5953. |
| APA | Xia, Kaizong,Chen, Congxin,Wang, Tianlong,Yang, Kuoyu,&Zhang, Chuqiang.(2022).Investigation of Mining-Induced Fault Reactivation Associated with Sublevel Caving in Metal Mines.ROCK MECHANICS AND ROCK ENGINEERING,55(10),5953. |
| MLA | Xia, Kaizong,et al."Investigation of Mining-Induced Fault Reactivation Associated with Sublevel Caving in Metal Mines".ROCK MECHANICS AND ROCK ENGINEERING 55.10(2022):5953. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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