加锚节理面结构强度特性研究

Study on structure strength characteristics of anchored joint face

从加锚节理岩体系统的变形破坏过程出发,基于节理剪胀效应建立了节理面抗剪性能理论分析模型,研究节理处锚杆应力与层面切向变形状态的关系,提出了"等效抗剪强度相对贡献率"的概念,并将其作为评价加锚节理岩体加固效果的指标,初步探讨了锚杆的理论最优安装角。

According to the deformation and failure process of anchored joint rock mass system, the theoretical analysis model of joint face shear resistance perform ance was built based on the joint shear dilation effect to study the relation of anchor stress at the joint with tangential deformation state of layer surface. The conception of ＂relative contribution to equivalent shear resistance strength＂ was proposed to evalu ate the reinforcement effect of anchored joint rock mass, and the optimum theoretical installation angle of anchor was also discussed preliminarily.