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针对深部软岩巷道设计、支护和围岩稳定性控制方面存在的问题,通过数值模拟正交试验得出水平应力作用角、侧压系数、岩体强度和分岔角等主要地质结构因素对深部软岩巷道交岔点围岩变形和稳定性的影响变化规律.研究表明,与可控因素分岔角相比,埋深、平均侧压力系数、围岩强度对深部巷道交岔点的影响是显著的,而岩体强度则是影响深部巷道交岔点稳定性的最主要的因素,并以此得出了深部巷道设计的最佳地质和结构参数.
Aiming at the existing problems in deep soft rock roadway design, support and surrounding rock stability control, the main geological structural factors such as horizontal stress angle, lateral pressure coefficient, rock mass strength and bifurcation angle are obtained through numerical simulation orthogonal experiment The research results show that the influence of buried depth, average lateral pressure coefficient and surrounding rock strength on the intersection of deep roadway is more obvious than that of controllable factor, which is caused by the deformation and stability of surrounding rock at the intersection of deep soft rock roadway. Is significant, while the strength of rock mass is the most important factor affecting the stability of the roadway in deep roadway, and the best geological and structural parameters of deep roadway design are obtained.