自锁锚杆是一种通过围岩变形来实现自身加固的锚杆。设计的依据是利用围岩变形的不协调性,通过锚杆杆体把浅部围岩与深部围岩联系起来,将浅部围岩变形压力转移到深部围岩,利用深部围岩牵制浅部围岩变形。实现围岩自我约束,自我调整,达到控制和降低围岩变形速度的目的。 Self-locking bolt is a bolt through the deformation of the surrounding rock to achieve their own reinforcement. The basis of design is to make use of the incompatibility of the surrounding rock deformation. By connecting the shallow surrounding rock with the deep surrounding rock by the anchor rod body, the deformation pressure of the shallow surrounding rock is transferred to the deep surrounding rock. The deep surrounding rock is used to contain the shallow surrounding Rock deformation. Surrounding rock to achieve self-restraint, self-adjustment, control and reduce the surrounding rock deformation rate purposes.