Dynamic Computational Analysis of Openings in Jointed Rock

Abstract

Procedures for the transient analysis of openings in jointed rock are developed and applied to several problems. The rock masses are modeled by rigid blocks with edge‐to‐edge interaction at joints and are coupled to sur rounding finite elements for transmission of waves to the opening. Studies of the dynamic response of caverns show that failing blocks slide intermittently and displace the most when shear wave lengths are about twice the cavern height.