Year of Publication

2018

Degree Name

Master of Science in Mining Engineering (MSMIE)

Document Type

Master's Thesis

College

Engineering

Department

Mining Engineering

First Advisor

Dr. Jhon Silva

Abstract

Underground coal mine explosions pose a significant threat to infrastructure such as mine seals and refuge alternative chambers. After a mine seal failed in the Sago mine disaster, which took the life of 12 miners, design requirements were reexamined and improved. However, most research being completed on the analysis of mine structures during an explosive event focuses solely on peak pressure values, while ignoring the impact of pressure duration. This study investigates the impact pressure duration, waveform shape, and impulse have on structural displacement, while also exploring what pressures and duration can be expected during a mine explosion. Additionally, the use of high explosives to simulation conditions experienced during a mine explosion is examined. Results from this study are produced through experimental testing using a scaled shock tube and theoretical studies using finite element analysis.

Digital Object Identifier (DOI)

https://doi.org/10.13023/etd.2018.446

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