中文摘要：

针对层理边坡预应力锚杆加固工法中存在的缺陷及隐患，通过对加锚层理边坡力学机制的理论推导及试验对比分析，得出锚杆设计倾角的变化会对锚杆的抗拔力和加锚层理弱面的抗剪强度产生相反的影响，从而设计时，使两者难以协调兼顾。为此，提出压力注浆与锚杆复合加固工法可以克服此类问题的观点，并经过对加锚注浆节理模型的力学分析，推出压力注浆能够提高加锚层理边坡的抗剪强度及抗剪刚度的结论，为这种复合加固工法提供理论依据。最后通过具体的工程实例，使该工法得以实际运用与验证，并就工法工艺中的几个关键技术问题予以说明。

英文摘要：

Aiming at the defects and hidden troubles in reinforcement of layered slope by prestressed bolts, the mechanical mechanism is deduced theoretically and test is conducted and analyzed contrastively; and a conclusion that the change of designed inclination of anchors will bring a contrary influence on shear strength and withdrawal resistance of anchors is drawn, which makes design difficult. Therefore, a viewpoint that multiplex reinforced method of pressure grouting and anchors could solve the problems is brought forward. A bolted and grouted jointed model is established and analyzed; and a conclusion that pressure grouting will strengthen the shear strength and stiffness of bolted layered slope is drawn, it provides theoretical references for the multiplex reinforced method. Finally, the method is applied and validated by an actual engineering; and some key technological problems about the method are illuminated.