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A new vertical shaft has been proposed to connect surface to existing workings at a depth of 1000m below ground. The shaft is to be a mineral hoisting shaft with the ability to act as an emergency egress and has a proposed circular shape of 6m diameter. The stratigraphy of the geological strata at the shaft site is as follows:
Depth from surface
Strata type
0-20m
Soil/overburden
20-100m
Weak regolith
100-300m
Siltstone of moderate strength low water flow
300-400m
Impermeable shale of moderate strength
400-800m
Bunter sandstone of high strength, aquifer, high water flow
800-1000m
Shales, medium strength, low water flow
The purpose of the exercise is for students to develop a shaft sinking and lining strategy for the site. The expectation is for students to compile a report of their findings, the report should include:
and any other salient points.
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The project will consist of a written paper and a presentation - Egress and Life Safety Analysis - FIRE 4500 (FIRE 2225)
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