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Models to represent mine roof rocks of different thicknesses, over underground openings, were prepared and subjected to barodynamic methods of applying stresses with use of centrifuge; thin and thick models were found to behave differently; beam theory of roof supports seems to hold good for thin beds and its application is doubtful where ratio of span of immediate roof rock to its thickness becomes smaller than certain critical value.
Models to represent mine roof rocks of different thicknesses, over underground openings, were prepared and subjected to barodynamic methods of applying stresses with use of centrifuge; thin and thick models were found to behave differently; beam theory of roof supports seems to hold good for thin beds and its application is doubtful where ratio of span of immediate roof rock to its thickness becomes smaller than certain critical value.
Use of models for study of mine roof rock
J Mines, Metals Fuels
Sheth, P.G. (author)
1962
Article (Journal)
English
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