摘要
综合运用相似材料模拟试验和数值模拟结果,分析了预应力锚杆支护技术对两帮的控制效用,指出锚杆支护中合理的预紧力可以改善锚固岩体力学性能,降低两帮变形量,从而有利于保持巷道围岩稳定。
The action on ribs of pretensioned bolt in the roof has been analyzed on the basis of mechanics of rock, the similar material simulated test and means of the numerical simulation in this paper. Have announced the principle of reducing ribs deformation by this method, the basic interaction principles of surrounding rock has been illuminated in the supporting system. Point out that rational pretensioned bolt in roof can form intensifying roof beam structure and help and keep tunnel the stabilities of ribs rock.
出处
《矿山压力与顶板管理》
北大核心
2004年第2期71-72,共2页
Ground Pressure and Strata Control
