Research on Transmission Mechanism of Anchorage Force of Anchored Bolt Supporting

Transmission mechanism of anchorage force of anchored bolt supporting is very complex.On the basis of shear stress's exponential distribution of anchorage force obtained by former scholar,this paper presented calculation formula of anchorage force along bolt body by considering influence of surrounding rock body and relative stiffness of anchorage agent on shear stress distribution.It also deduced distribution curve of shear stress of surrounding rock at anchorage section along bolt body.The results might provide theoretical reference to anchored bolt supporting design and construction.