A follow up to the behaviour of cable bolts in shear; experimental study and mathematical modelling
A mathematical model is able to determine the pure shear strength of cable bolt under various shearing conditions. The proposed model is developed based on the Fourier series concept and a linear relationship between shear and normal forces generated during the cable bolt shearing. The conventional double shearing apparatus (MKII) was modified to evaluate the pure shear strength of cable bolt by removing the contribution of concrete blocks contact frictional force. The experimental results obtained from the modified double shear instrument (MKIII) was in good agreement with the proposed mode prediction.
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