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Sill mat design for narrow vein mining Marcinyshyn, Kennth William

Abstract

The crux of sill mat design is the estimation of vertical stress before sill mat failure. Current theories for estimating vertical pressure in rock and soils at shallow depths all produce a variety of answers. The current theories for estimating vertical stress do not account for changes in stope geometry. For example, the footwall, hangingwall, and ore widths change drastically from lift to lift in some narrow vein gold mines. Consequently, a different approach is suggested. The new approach is based on Terzaghi's (1948) Arching Theory and the first order linear differential equation: ........ [For full abstract see attached file]

Item Metadata

Title
Sill mat design for narrow vein mining
Creator
Marcinyshyn, Kennth William
Publisher
University of British Columbia
Date Issued
1996
Description
The crux of sill mat design is the estimation of vertical stress before sill mat failure. Current theories for estimating vertical pressure in rock and soils at shallow depths all produce a variety of answers. The current theories for estimating vertical stress do not account for changes in stope geometry. For example, the footwall, hangingwall, and ore widths change drastically from lift to lift in some narrow vein gold mines. Consequently, a different approach is suggested. The new approach is based on Terzaghi's (1948) Arching Theory and the first order linear differential equation: ........ [For full abstract see attached file]
Extent
9983781 bytes
Genre
Thesis/Dissertation
Type
Text
File Format
application/pdf
Language
eng
Date Available
2009-02-10
Provider
Vancouver : University of British Columbia Library
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
DOI
10.14288/1.0081160
URI
http://hdl.handle.net/2429/4419
Degree
Master of Applied Science - MASc
Program
Mining Engineering
Affiliation
Applied Science, Faculty of; Mining Engineering, Keevil Institute of
Degree Grantor
University of British Columbia
Graduation Date
1996-11
Campus
UBCV
Scholarly Level
Graduate
Aggregated Source Repository
DSpace

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Rights

For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.