Investigating the Influence of Embedment Length on the Anchorage Force of Rock Bolts with Modified Pile Elements

The embedment length (EL) of full-grouting rock bolts is a core factor in bolt reinforcement. Therefore, understanding the influence EL on reinforcement performance benefits quality. To realise this purpose, paper adopted numerical modelling method. In method, structural elements modified piles were used. elastic debonding law was incorporated into pile to model behaviour surface between and grout. results showed that sliding had marginal bolts. Moreover, has paramount Before reached largest anchorage force, there linear relation force EL. It effective use regression analysis method predict critical This finding also applicable fibre-reinforced polymer (FRP) Additionally, type metal much larger initial stiffness than FRP