Improving the Numerical Modelling of In-Situ Rock Bolts Using Axial and Bending Strain Data from Instrumented Bolts

Abstract Numerical modelling has become an important tool in the underground rock bolt reinforcement designing process. provides advantage of easily and quickly simulating complex geometries mechanisms with sensitivity analyses. However, a numerical model needs to be calibrated using mathematical solutions, lab testing or actual in-situ observations measurements (which is preferred method) before its results can quantitatively applied design. Instrumented bolts provide useful data source for calibrating models. In this work, procedures have been presented identify determine orientation structures mass based on strains instrumented bolts. A method calibrate also presented. The validated laboratory tests modelling. create FLAC3D are data.