The infiltration and physical and chemical effects of fissure water often have a degrading effect on the strength and bearing capacity of the surrounding rock of the roadway. With the increase of the time of water infiltration, the roadway deformation increases exponentially, resulting in a higher risk of roadway destruction. In this paper, targeting at the supporting and protection issues associated with the main inclined shaft during the water-drenching, a numerical simulation method was established to evaluate the impact of the fissure water on the deformation of the surrounding rock of the roadway, and a solution to control the top water in main inclined shafts by grouting was proposed. Through the numerical simulation method, the effective penetration range of the slurry in the surrounding rock and the variation of the tunnel deformation with the grouting timing were studied. A method of combining numerical simulation with on-site monitoring to determine a reasonable grouting timing was proposed. The field application suggests that grouting at a reasonable timing can effectively control the influence of seepage water from the roof crack of the main inclined shaft on the deformation of the roadway surrounding rock, improve the integrity of the roadway surrounding rock, increase the bearing capacity of the support, and maintain the safety and stability of the roadway surrounding rock of the main inclined shaft. Furthermore, this study can provide insightful references to the grouting reinforcement adopted by similar main inclined shafts.

中文翻译：

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渗水主斜井巷道加固时机优化探讨

裂隙水的入渗和物理化学作用往往对巷道围岩的强度和承载力产生退化作用。随着渗水时间的增加，巷道变形呈指数增长，导致巷道破坏的风险更高。本文针对主斜井在淋水过程中的支护问题，建立了数值模拟方法，评估了裂隙水对巷道围岩变形的影响，并提出了一种数值模拟方法。提出了通过注浆控制主斜井顶水的解决方案。通过数值模拟方法，研究了泥浆在围岩中的有效渗透范围和隧道变形随灌浆时间的变化。提出了一种数值模拟与现场监测相结合的方法，以确定合理的注浆时机。现场应用表明，合理定时注浆，可有效控制主斜井顶板裂缝渗水对巷道围岩变形的影响，提高巷道围岩的整体性，提高巷道承载力。支护，维护主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。提出了一种数值模拟与现场监测相结合的方法，以确定合理的注浆时机。现场应用表明，合理定时注浆，可有效控制主斜井顶板裂缝渗水对巷道围岩变形的影响，提高巷道围岩的整体性，提高巷道承载力。支护，维护主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。提出了一种数值模拟与现场监测相结合的方法，以确定合理的注浆时机。现场应用表明，合理定时注浆，可有效控制主斜井顶板裂缝渗水对巷道围岩变形的影响，提高巷道围岩的整体性，提高巷道承载力。支护，维护主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。现场应用表明，合理定时注浆可有效控制主斜井顶板裂缝渗水对巷道围岩变形的影响，提高巷道围岩的整体性，提高巷道承载力。支护，维护主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。现场应用表明，合理定时注浆，可有效控制主斜井顶板裂缝渗水对巷道围岩变形的影响，提高巷道围岩的整体性，提高巷道承载力。支护，维护主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。保持主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。保持主斜井巷道围岩的安全稳定。此外，本研究可为类似主斜井采用注浆加固提供深刻参考。