ABSTRACT
Fully grouted anchor bolts have been widely used in slope reclamation and mining reinforcement. Taking the anchor bolt, the grouted materials, the surrounding rock and their interfaces as the research objects, based on the basic shear-lag models and given reasonable assumed conditions, the authors studied the mechanism of the axis force and the side resistance in the fully grouted bolt system. Obviously, the system can be divided into three parts-the anchor bolt, grouted material and surrounding rock-by two interfaces among them. Under the condition of fully grouted, there is no stick-slide on the interface and the harmonious relationship between force and deformation is satisfied. Based on the basic shear-lag theory and given reasonable assumed conditions, the authors study the load-transfer characters of the fully grouted anchor bolt system and elaborate the system’s mechanisms, especially the distribution rule of the side resistance and axial force.
