3D Nonlinear Blast Model Analysis for Underground Structures

Abstract

In this study, the impact of explosions on underground facilities is evaluated through numerical analysis, considering key factors including charge weights, size and shape of the tunnel, standoff distance (a distance from the detonation point to the tunnel wall), and various types of surrounding ground. Proposed explosion wave parameters and tunnel damage assessment charts are developed from the numerical analysis and provide a methodology for simple and practical application to vulnerability assessment of tunnels.