Ground Movement in the Hanging Wall of Underground Iron Mines with Steeply Dipping Discontinuities: A Case Study
文献类型：期刊论文
| 作者 | Wang, Tianlong2,3; Chen, Congxin2,3; Xia, Kaizong2,3; Shao, Yong2,3; Liu, Xuanting2,3; Yang, Kuoyu1 |
| 刊名 | ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-05-03 |
| 卷号 | -期号:-页码:- |
| 关键词 | Underground mining Hanging wall Ground movement Steeply dipping discontinuities |
| ISSN号 | 2193-567X |
| 英文摘要 | To ensure the safety of underground mining activities and effectively protect the surface production facilities and houses of the nearby residents, the ground movement caused by the sublevel caving method needs to be studied. In this work, the failure behaviors of the surface and drift of the surrounding rock were investigated based on the results of in situ failure investigations, monitoring data, and engineering geological conditions. The results were then combined with theoretical analysis to reveal the mechanism responsible for the movement of the hanging wall. Driven by the in situ horizontal ground stress, horizontal displacement plays an imperative role in both the movement of the ground surface and underground drifts. Accelerated movement is found to occur in the ground surface which coincides with the occurrence of drift failure. Failure occurs in the deep rock masses and then gradually propagates to the surface. The steeply dipping discontinuities are the main reason for the unique ground movement mechanism in the hanging wall. As steeply dipping joints cut through the rock mass, the rock surrounding the hanging wall can be modeled as cantilever beams subjected to in situ horizontal ground stress and lateral stress due to caved rock. This model can be used to obtain a modified formula for toppling failure. Also, a mechanism of fault slipping was proposed, and the condition required for fault slipping was obtained. Based on the failure mechanism of steeply dipping discontinuities, the ground movement mechanism was proposed considering the horizontal in situ ground stress and caved rock mass: slippage of fault F3, slippage of fault F4, and toppling of rock columns. Based on the unique ground movement mechanism, the goaf surrounding rock mass could be divided into six zones: a caved zone, a failure zone, a toppling-slipping zone, a toppling-deformation zone, a fault-slipping zone, and a movement-deformation zone. |
| 学科主题 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000980438000001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35105]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering and Architecture, Henan University, Kaifeng 475004, Henan, 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 430071, Hubei, People’s Republic of China 3.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Wang, Tianlong,Chen, Congxin,Xia, Kaizong,et al. Ground Movement in the Hanging Wall of Underground Iron Mines with Steeply Dipping Discontinuities: A Case Study[J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,2023,-(-):-. |
| APA | Wang, Tianlong,Chen, Congxin,Xia, Kaizong,Shao, Yong,Liu, Xuanting,&Yang, Kuoyu.(2023).Ground Movement in the Hanging Wall of Underground Iron Mines with Steeply Dipping Discontinuities: A Case Study.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,-(-),-. |
| MLA | Wang, Tianlong,et al."Ground Movement in the Hanging Wall of Underground Iron Mines with Steeply Dipping Discontinuities: A Case Study".ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING -.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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