Rock Slope Reinforcement Of Shotcrete And Reinforcement Effectiveness Analysis

Bolting and shotcrete reinforcement technology shotcrete technology and the prestressed anchor combine recent years been widely used in large-scale slope especially rocky slope on. Shotcrete reinforcement on rock slope reinforcement mechanism of action has not been fully thorough study of the scope of application of shotcrete reinforcement there is considerable controversy, shotcrete reinforcement design method and parameter values to determine an inconsistency, shotcrete reinforcement effectvariety of evaluation methods has not formed a complete system, these aspects need further research and analysis.In this paper, rock slope for the study, based on the limit equilibrium method for slope stability analysis, analysis of the take anchor shotcrete rock slope reinforcement before and after effect. First, a brief introduction to the rock slope instability and failure mode. Secondly, bolt slopes reinforced shotcrete mechanism introduced. Through the slope reinforcement safety factor before and after the change to the analysis and evaluation of bolt shotcrete reinforcement effect. The use of different means of monitoring (surface deformation measurements, three-point displacement meter Prestressed Anchor dynamometer bolt force measuring meter, cracks) of measurement data recording and analysis, evaluation of reinforcement effect.Through the work, made the following main results:(1) limit equilibrium method in rock slope stability analysis of the most widely used, and specification accompanying;(2) bolt shotcrete reinforcing rock slope the mechanism of action, that the rock slope engineering bolt from the pressure wall and composite beams shotcrete on rock reinforcement role penetrate cracks addition to recognized shotcrete surface also has bonded bundled role;(3) combined with the the Vipassana appearance of the safety monitoring of slope monitoring data by surface deformation, cracks in the degree of opening of internal displacement meter deformation monitoring curve, a comprehensive analysis of the stability of high slope deformation, inferred high sliding slope, slippery the location of the body thickness, displacement, dislocation with adverse structural surface;(4) by direct analysis of the monitoring data to determine the steady state of the reinforced slope, evaluation anchoring effect.