Large-Scale Failure Mechanism of a Footwall with Steeply Inclined Discontinuities in a Sublevel Caving Mine
文献类型：期刊论文
| 作者 | Yang, Kuoyu1; Li, Sihan1; Xia, Kaizong2; Chen, Congxin2; Shen, Wenlong3; Deng, Ke1 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 24期号:8页码:13 |
| 关键词 | Metal mine Underground mining Sublevel caving method Steeply inclined discontinuities Large-scale failure mechanism Footwall failure |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/IJGNAI.GMENG-9852 |
| 英文摘要 | In a metal mine adopting a sublevel caving (SLC) method, life-of-mine and temporary mine infrastructures are preferred to be positioned on the footwall side of the ore body. Therefore, the footwall stability, especially well developed with steeply inclined discontinuities, is a major concern in an SLC mine. In response to this issue, a comprehensive investigation of the large-scale footwall failure mechanism has been conducted. The load-bearing structure responsible for footwall large-scale failure has been recognized. Subsequently, by adopting limit equilibrium theory, an improved mechanical model of overlapping cantilever beams is proposed for evaluating the footwall stability and determining its failure scope. In this model, a relationship between footwall movement and lateral force acting on the caved zone side of the footwall is built, considering the footwall movement and its compression effect on the caved zone. A validation study of this improved mechanical model is conducted and the calculation results are compared with the in situ monitoring data. It is shown that this improved model offers a more realistic simulation of lateral force acting on the caved zone side of the footwall. The proposed improved model can be utilized for other practical applications involving footwall large-scale failure under similar geotechnical conditions. |
| 资助项目 | Science and Technology Project of Henan Province[242102321177] ; General Program of the Hubei Provincial Natural Science Foundation[2023AFB631] ; Young Scholar Fund of National Natural Science Foundation of China[42002292] ; Youth Innovation Promotion Association CAS[2023346] ; Outstanding Youth Science Foundation of Henan Province[242300421072] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001281726700029 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42236]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Shen, Wenlong |
| 作者单位 | 1.Henan Univ, Sch Civil Engn & Architecture, Kaifeng 475000, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Henan Polytech Univ, Sch Energy Sci & Engn, Collaborat Innovat Ctr Coal Work Safety & Clean Hi, Jiaozuo 454000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Kuoyu,Li, Sihan,Xia, Kaizong,et al. Large-Scale Failure Mechanism of a Footwall with Steeply Inclined Discontinuities in a Sublevel Caving Mine[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2024,24(8):13. |
| APA | Yang, Kuoyu,Li, Sihan,Xia, Kaizong,Chen, Congxin,Shen, Wenlong,&Deng, Ke.(2024).Large-Scale Failure Mechanism of a Footwall with Steeply Inclined Discontinuities in a Sublevel Caving Mine.INTERNATIONAL JOURNAL OF GEOMECHANICS,24(8),13. |
| MLA | Yang, Kuoyu,et al."Large-Scale Failure Mechanism of a Footwall with Steeply Inclined Discontinuities in a Sublevel Caving Mine".INTERNATIONAL JOURNAL OF GEOMECHANICS 24.8(2024):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。