Consider the analysis of tunnel bolting leading to the equation If bolting is on a square pattern
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Consider the analysis of tunnel bolting leading to the equation If bolting is on a square pattern of spacing S and a 45? cone of influence is assigned to the bolt forces, show that this equation is equivalent to that of Bischoff and Smart (1977), equation 8, where provided a
Mohr-Coulomb yield condition is assumed for the rock. Equation 8 is per foot of tunnel length.
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