An elasticity solution for the shear stiffness of the full-grouted resin roofbolt

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SUMMARY The bolt is modeled as a beam on an elastic foundation where the theory of elasticity in polar coordinates is employed to determine the foundation modulus (spring stiffness) of the resin-rock combination. Parameter studies are presented showing the effects of the rock and resin elasticity on the shear stiffness values. The results obtained are compared to values obtained using a three-dimensional finite element study. The agreement between the elasticity solution and the three-dimensional finite element model is close enough to preclude the need for using the finite element model in this type of an analysis. © 1981, Elsevier Scientific Publishing Company.

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Developments in Geotechnical Engineering