2011•Unpublished venueOpen access

Finite Element Modelling Of Ground Vibrations Due To Tunnelling Activities

Muhammad Ekhlasur Rahman, Trevor Orr

Abstract

This paper presents the use of three-dimensional finite elements coupled with infinite elements to investigate the ground vibrations at the surface in terms of the peak particle velocity (PPV) due to construction of the first bore of the Dublin Port Tunnel. This situation is analysed using a commercially available general-purpose finite element package ABAQUS. A series of parametric studies is carried out to examine the sensitivity of the predicted vibrations to variations in the various input parameters required by finite element method, including the stiffness and the damping of ground. The results of this study show that stiffness has a more significant effect on the PPV rather than the damping of the ground.

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Key concepts: Vibration, Ground vibrations, Finite element method, Structural engineering, Stiffness, Parametric statistics, Quantum tunnelling, Noise (video)