A rock burst usually causes a roadway collapse or even an instant blockage. When the deformation energy accumulated in the surrounding rock exceeds the minimum energy required for the dynamic destruction of the surrounding rock of a roadway, a rock burst accident will occur. According to statistics, 85% of rock burst accidents occur in roadways. This paper establishes a strong-soft-strong structural model for the rock burst stability control of the surrounding rock of a roadway, and the anti-impact and antiseismic mechanisms of the mechanical model are analysed. The strength, stress transfer, deformation, and energy dissipation characteristics of the strong-soft-strong structure are studied. The stress criterion and energy criterion of rock burst failure in small internal structures are derived for roadway support design. The support scheme of “anchor cable active support + hydraulic lifting support + soft structure energy absorption” is proposed. A steel pipe can be inserted into a borehole drilled into the small internal structure to realize the proposed innovative protection technology for small internal structures by creating a soft structure that can release, absorb, and transfer the pressure by repeatedly cracking the coal and rock mass. The innovation of cracking technology for soft roadway structures has been realized. The roadway tested with this strong-soft-strong enhanced surrounding rock control technology met the production requirements during the mining period. The field test was successful, and the expected support effect was achieved. This work provides a reference for roadway support under similar conditions and can be popularized and applied.

中文翻译：

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岩爆巷道支护的新理论模型及其应用。

岩石破裂通常会导致巷道坍塌甚至是即时堵塞。当积聚在围岩中的变形能量超过动态破坏巷道围岩所需的最小能量时，就会发生岩爆事故。据统计，凿岩事故中有85％发生在道路上。建立了巷道围岩爆破稳定控制的强软强结构模型，分析了力学模型的抗冲击和抗震机理。研究了强软强结构的强度，应力传递，变形和能量耗散特性。推导了小型内部结构中岩爆破坏的应力准则和能量准则，用于巷道支护设计。提出了“锚索主动支护+液压提升支护+软结构能量吸收”的支护方案。可以将钢管插入钻入小型内部结构的钻孔中，以通过创建软结构来实现针对小型内部结构的建议创新保护技术，该结构可以通过反复破碎煤和岩体来释放，吸收和传递压力。实现了软巷道结构裂缝技术的创新。使用这种坚硬而坚固的增强围岩控制技术进行测试的巷道满足了采矿期间的生产要求。现场测试成功，达到了预期的支持效果。此项工作为相似条件下的巷道支护提供了参考，可以推广应用。