| 摘要 |
mining industry. SUBSTANCE: way of rock anchoring lies in drilling of rock holes, in installation of bar reinforcement and its bonding to rock mass by circular layer of minimal thickness of bonding synthetic resins. Reinforcement with increased carrying resistance for breaking equally corresponding in resistance to shear of circular layer of bonding resin. Thickness of layer is found from expression t=(0.08-0.12) Da, where Da is diameter of bar of reinforcement. EFFECT: increased carrying resistance to breaking of the weakest link- reinforcement, reduced dimensions and usage of materials for erection of bolting. 1 tbl |
