【摘要】 针对程潮铁矿２~＃主溜井“托斗法”加固方案，采用数值模拟计算的方法，在加固前后条 件下，对围岩的力学状态、局部结构和系统整体结构的稳定性进行了预测分析，为整体加固设 计方案的评价提供了理论依据．更多还原

【Abstract】 According to the reinforcement plan on No.2 main ore-pass of Cheqchao iron mine by the method of support funnel, it is analyzed by numerical simulation that is the stability in the mechanical state of surrounding rock and the local and whole structure before and behind reinforcement, The calculation result presents the theoretical basis for the choice and confirmation of the whole reinforcement plan.更多还原