ABSTRACT
ABSTRACT: Verifying sufficiency of the design of an excavation is an everyday job in mining and tunneling. The essential task is to estimate loads and deformation to confirm excavation stability and mostly, rock mass changes are slow enough that momentum can be ignored. Sometimes however, rock damage and movements can occur at high speed. In this paper, a methodology for simulating high velocity deformation due to induced seismic events, to confirm sufficiency of excavation designs is presented. We discuss briefly the forecasting of potential for such events to establish demand as well as the simulation of the event itself and the numerical testing-to-failure of proposed excavation designs to establish ultimate capacity.
1 INTRODUCTION
