Mining in Manitoba
Timber Support
Mine Development
The old standby method of support is timber. Timber can be cut and easily installed. Timber has the unique ability to fail gradually when loaded beyond its strength and in giving warning of approaching failure by audible cracking.
One piece Set
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This term applies to a single stick of timber called a post, stull, or prop. |
Two piece Sets
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Such as set consists of a cap and a single post. Lagging of 2 in. boards may be used |
Square Sets
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These sets consist of 4 vertical timbers called posts. Caps and girts are placed on top of the posts, a line of girts being at right angles to a line of caps. |
