Stability Analysis of a Jointed Beam.
Internat J Numer Anal Methods Geomech 1977 Dec; 1(4):323-341
A numerical step-by-step procedure 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 logarithm 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 nonlinear effects are considered.
Internat. J. Numer. Anal. Methods Geomech., V. 1, No. 4, October- December, 1977, PP. 323-341