深部巷道锚杆-锚索-围岩变形协同研究

Study on Bolt-cable-surrounding Rock Deformative Synergy in Deep Roadway

利用锚杆、锚索在物理力学性能上＂刚柔并济＂的优越性和互补性来控制深部巷道围岩稳定,已经越来越普遍而重要.针对锚杆（索）与围岩变形不协调,造成局部锚杆（索）发生拉断而导致整体控制失效的情况,通过计算分析深部巷道围岩变形的演化过程,提出锚杆-锚索-围岩变形协同的控制思路和计算方法,以充分发挥三者的整体承载性能,更好地实现深部巷道围岩稳定性控制目标.

It is increasingly important to stablize the sourrounding rock in deep roadway by employing its superior physical feature of rigid-flexible coupling. A lack of coordin ation between the surrounding rock and the bolt or cable result in a partial tensile failure of the later,which in turn causes an overall control failure. In order to overcome this problem,the process of deformation of the surrounding rock in deep raodway was explored,and the way was discussed to control and calculate the bolt-cable-surrounding rock deformative synergy,which their overall bearing capability was optimized,and a better control of the stability of the surrounding rock in deep roadway was achieved.