Simulation Of The Vibrations Produced During The Rock Excavation By
Different Methods
Author(s)
J. Toraño & R. Rodríguez
Abstract
Simulation of the vibrations produced during
the rock excavation by different methods
J. Torafio & R. Rodriguez
Department of Exploitation and Prospection of Mines
Oviedo University, Spain
Abstract
The ground vibrations generated during rock excavation are always undesirable
because of the damage that can be caused to building structures. This paper
describes a numerical model that allows the simulation of ground vibrations due to
blasting (mining), which can be transmitted over a great distance, and ground
vibrations due to the use of hydraulic boom breakers (civil works) that are only
important near the origin. Software for non linear dynamic analysis based on Finite
Element Method is used. In the model the ground and the effect of a blasting (a
very high instantaneous pressure) or a pick action (periodic load) are simulated.
The calculated results are compared with real data proving that the model
can reproduce the real phenomenon.
1 Introduction
Some times, in mining or civil works, it is
Keywords
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