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Miner's Toolbox |
Miner's Toolbox |
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| Mechanical Rockbolts |
| Typical Technical Data | ||||||||||||||
| Expansion shell anchored rockbolts are the most common form of rockbolt and the most inexpensive. The bolt is anchored by rotating the bolt which pulls a wedge attached to the end of the bolt into a conical expansion shell. This forces the shell to expand against and into the wall of the borehole. This type of bolt is generally suitable for moderately hard to hard rock conditions. Mechanical Rockbolts:
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| Advantages and Disadvantages | ||||||||||||||
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