Disturbed zone calculation and stability evaluation method of footwall slope with slip-shear failure under excavation
文献类型：期刊论文
| 作者 | Qin, Hui1,2; Tang, Hua1,2; Yin, Xiao-tao1,2; Cheng, Xu1,2 |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| 出版日期 | 2024-02-01 |
| 卷号 | 31期号:2页码:589-601 |
| 关键词 | footwall slope slip-shear failure failure mechanism mechanical truncation method (MTM) disturbed zone analysis of stability |
| ISSN号 | 2095-2899 |
| DOI | 10.1007/s11771-023-5511-5 |
| 英文摘要 | The slip-shear failure type of footwall slope is a type of beding slope that often appears in mining engineering, which has the characteristics of strong suddenness and extensive failure range. How to quickly and accurately define the plastic disturbed zone of excavation and evaluate its stability is vital for safety control. In this work, the failure mode and characteristics of this type of slope are first revealed by numerical simulation tests. Then, according to the failure mode of the slope, considering the uniaxial compressive strength of the rock mass, the mathematical equation describing the excavation disturbed zone is established. Finally, a new mechanical truncation method (MTM) is proposed to calculate the excavation disturbed zone and stability of the footwall slope. It is found that the MTM can accurately characterize the disturbed zone. The calculated limit cutting depth, disturbance thickness, and safety factor are in good agreement with the numerical simulation results, and the evaluation results are safer than numerical simulations. The maximum thickness of the disturbed zone determines the depth of the anchor end of the anchor cable. The disturbed zone indicates the critical area for reinforcement and provides engineering construction and monitoring guidance for the footwall slope. |
| 资助项目 | Key R&D Program of Yunnan, China[202303AA080010] ; National Natural Science Foundation of China[51779250] ; Science and Technology Innovation and Demonstration of Yunnan Provincial Department of Transportation, China[74] ; Science and Technology Innovation and Demonstration of Yunnan Provincial Department of Transportation, China[98] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001190975700023 |
| 出版者 | JOURNAL OF CENTRAL SOUTH UNIV |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/41022]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Tang, Hua |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, 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 | Qin, Hui,Tang, Hua,Yin, Xiao-tao,et al. Disturbed zone calculation and stability evaluation method of footwall slope with slip-shear failure under excavation[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2024,31(2):589-601. |
| APA | Qin, Hui,Tang, Hua,Yin, Xiao-tao,&Cheng, Xu.(2024).Disturbed zone calculation and stability evaluation method of footwall slope with slip-shear failure under excavation.JOURNAL OF CENTRAL SOUTH UNIVERSITY,31(2),589-601. |
| MLA | Qin, Hui,et al."Disturbed zone calculation and stability evaluation method of footwall slope with slip-shear failure under excavation".JOURNAL OF CENTRAL SOUTH UNIVERSITY 31.2(2024):589-601. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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