A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
New look at long-term anchorage -- Key to roof bolt efficiency
Comprehensive study was undertaken to determine anchorage losses for various shells installed in different materials; tests indicated that deeper grooves may be beneficial for softer material but detrimental in more competent rocks; large contact areas for 2 specially designed expansion shells masked effect of serrations to considerable extent, and effect of this parameter was not completely studied.
New look at long-term anchorage -- Key to roof bolt efficiency
Comprehensive study was undertaken to determine anchorage losses for various shells installed in different materials; tests indicated that deeper grooves may be beneficial for softer material but detrimental in more competent rocks; large contact areas for 2 specially designed expansion shells masked effect of serrations to considerable extent, and effect of this parameter was not completely studied.
New look at long-term anchorage -- Key to roof bolt efficiency
Min Eng
Stefanko, R. (author)
Mining Engineering ; 14
1962
5 pages
Article (Journal)
English
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