高地应力矩形巷道底板破坏机理及控制对策

Damage Mechanism and Control Countermeasures of High Ground Stress Rectangular Roadway Floor

针对52_上02辅助运输巷,利用数值分析研究了地应力对巷道底板破坏的影响及控制措施,得出底板围岩出现区域性破坏且地应力越大围岩破坏越严重,锚杆(索)支护可转移围岩应力分布,减小巷道底板破坏程度和范围。

The influence and control measures of the ground stress on the bottom plate of roadway are studied by numerical analysis with 52under02 auxiliary haulage roadway, conclusions ： the damage of the surrounding rock is more severe due to the regional damage with the greater stress of the surrounding rock; the stress distribution of the surrounding rock can be transferred by the anchor, and the damage and scope of the floor could be reduced.