Abstract
Based on the principle of fictitious displacement, equations were formulated by the boundary element method for determining the stress fields in an elastic material with a centrally located opening. The opening which can be of various geometry, is reinforced by roof bolting (either point-anchored or fully grouted bolt) of different systems. Also the effects of bedding planes in the roof strata are included. A computer program was written for the whole process and two example problems are illustrated. Comparisons with closed-form analytical and finite element methods demonstrate the accuracy of the method developed.
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