Develop a shaft sinking and lining strategy

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Reference no: EM13318896

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:

  1. Proposed excavation strategies
  2. Timelines/project management for the project
  3. Equipment and consumables used
  4. Costing's ( a useful source is the AusIMM monograph 'Cost estimation handbook')
  5. lining design
  6. sinking stage design
  7. shaft fittings

and any other salient points.

Reference no: EM13318896

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