Abstract
When mining under bedding rock slopes, bedding landslides are prone to occur. This paper takes the mining-induced bedding rock landslide as the research area. Using a similar simulation experiment method, the effects of underground adverse slope mining disturbance on deformation, failure, and landslide of bedding rock slope were analyzed. The results show that under the influence of underground mining, the physical models exhibited a cantilever-fracture failure mode. Moreover, the deformation, failure, and landslide of the model were basically the same as the prototype landslide, which was a bedding rock landslide of initial traction type and later pushing type. On this basis, the phenomenon and the coefficient of weakening were defined. The stability of mining-influenced bedding rock slopes was studied by the limit equilibrium method. The outcomes indicate that the fractured block was stable after mining. The fractured block B first slid and came into contact with the fractured block A. The interacting pressure caused the fractured block B to push the fractured block A, and the fractured block A locked the fractured block B. Under the sliding extrusion of the fractured block B, the weakening coefficient of the fractured block A quickly weakened until the fractured block A slid. The fractured block B subsequently slipped after losing the resistance slide of the fractured block A. This successive slip process between the fractured blocks A and B obtained through the stability analysis is consistent with similar simulation experiments.
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The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.
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The authors received financial support from the Talent introduction research project of Guizhou University (grant number [2019] 42), Science & Technology Foundation of Guizhou Province (grant number [2020] 4Y050), and Science & Technology Foundation of Guizhou Province (grant number [2019] 2887).
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Conceptualization: ZD, LZ
Formal analysis: YW
Methodology: ZD, LZ
Project administration: ZD
Resources: ZJ, SX
Validation: ZJ, SX
Writing—original draft: ZD, LZ
Writing—review and editing: ZD, YW
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All the research work in this paper has been approved by the responsible authorities of the coal mine.
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Dai, Z., Zhang, L., Wang, Y. et al. Deformation and failure response characteristics and stability analysis of bedding rock slope after underground adverse slope mining. Bull Eng Geol Environ 80, 4405–4422 (2021). https://doi.org/10.1007/s10064-021-02258-7
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DOI: https://doi.org/10.1007/s10064-021-02258-7