Abstract
AbstractA numerical step‐by‐step procedure, analogous to the ‘Initial Stress Method,’ is presented for the analysis of a single‐layer jointed rock beam subjected to gravity loads and in‐plane in situ formation pressure. The joints are permitted to open at locations where the flexural stresses exceed flexural strength. The material properties may be different for each rock block and joint. A detailed algorithm is given for the solution of the problem. The results of several analyses indicating the relative effects of initial formation pressure, transverse load, stiffness of the joint material, and joint spacing on the response of a jointed beam are presented. The convergence characteristics of the numerical procedure are included. The joint material is assumed to be ‘no‐tension’ type. Both the geometric and material non‐linear effects are considered.
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