Investigating the Performance of Hard Rock Pillars with Different Width to Height Ratios and the Effects of Inclination, a Discontinuity and Blasting
Access Status
Open access
Authors
Jessu, Kashi Vishwanath
Date
2018Supervisor
Sam Spearing
Type
Thesis
Award
PhD
Metadata
Show full item recordFaculty
Science and Engineering
School
WASM: Minerals, Energy and Chemical Engineering
Collection
Abstract
Pillar design, a challenge in underground hard rock mines, contributes to catastrophic failure or economic loss based on its failure mechanism. Factors influencing the pillar failure mechanisms such as pillar inclination, presence of discontinuity and blasting effects were investigated with the help of laboratory tests and numerical analyses to create a design structure. Lastly, the pillar designs were evaluated by developing strain based monitoring method for pillar classification and pillar optimization.
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Jessu, Kashi; Spearing, Sam (2018)© The Southern African Institute of Mining and Metallurgy, 2018. Pillars are commonly left in underground mining, either for secondary extraction after the primary stopes have been filled or to maintain the overall ...
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