Research Article
Bolt-Grout Interactions in Elastoplastic Rock Mass Using Coupled FEM-FDM Techniques
Thus, for th load step | th iteration, do the following: | For each Gauss (sampling) point of an rock element | Initialize | Find the trial stress | Using trial stresses | Check if (see (3a) and (3b)) | If “No” trial stress is the updated stress | If “Yes” plastic correction is required (see (5) and (9)) | Determine nodal reaction forces (see (26a) and (26b)) | End For loop | For each bolt element | Use FDM procedure to compute displacements | at each discretized points on the bolt () (see (18)) | Determine shear force at each discretized point (see (14)) | Transform the shear forces into nodal reaction | forces for the rock elements having a bolt (see (24)) | Add this reaction force to the above reaction force | End For Loop | End loop iteration | End loop load step |
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