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- W2891551902 abstract "Roadway rockbursts seriously restrict the safety production of coal mines; however, the interaction between dynamic loads and roadway surrounding rocks has not been fully considered in existing studies. A dynamic failure analysis model of anchoring supporting structures was established to analyze dynamic effects of stress waves. Taking a rockburst in LW402103 of the Hujiahe coal mine as the case, the theoretical model was well applied and verified. The static cumulative resistance Qs (210.5 kN) which was incurred by deformation of rocks provided the basis (81.93% in the overall real-time resistance Q) of dynamic failures. However, the additional impact resistance Qd (46.43 kN) brought about by the energy release in the failure process of elastic zones triggered impact failures. As a result, under conditions that the overall real-time resistance Q (256.93 kN) exceeded the ultimate resistance [Q] (250.8 kN), the dynamic failure of supports occurred. The in situ application was implemented by taking pressure-relief measures and parameter optimizations of roadway supports, which achieved an effective prevention of rockbursts." @default.
- W2891551902 created "2018-09-27" @default.
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- W2891551902 date "2018-09-02" @default.
- W2891551902 modified "2023-09-25" @default.
- W2891551902 title "Mechanism Analysis of Roadway Rockbursts Induced by Dynamic Mining Loading and Its Application" @default.
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- W2891551902 doi "https://doi.org/10.3390/en11092313" @default.
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