Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of a Penetrometer for EstiMATING Roof-Bolt Anchorage
Research was done to determine if a hydraulically operated penetrometer developed by the Bureau of Mines could be used to estimate the roof-bolt anchorage capacity of mine roof rock. Tests were conducted both in the laboratory using cement cylinders and underground in shale rock. Hardness readings were measured by the penetrometer around the periphery of the bolt holes at the anchorage horizon. Roof bolts were then installed and subjected to an anchorage test. The results showed that the penetrometer readings could be used to determine the optimum stratum for roof-bolt anchorage but could not be used to make an accurate estimate of the anchorage capacity. (Author)
Evaluation of a Penetrometer for EstiMATING Roof-Bolt Anchorage
Research was done to determine if a hydraulically operated penetrometer developed by the Bureau of Mines could be used to estimate the roof-bolt anchorage capacity of mine roof rock. Tests were conducted both in the laboratory using cement cylinders and underground in shale rock. Hardness readings were measured by the penetrometer around the periphery of the bolt holes at the anchorage horizon. Roof bolts were then installed and subjected to an anchorage test. The results showed that the penetrometer readings could be used to determine the optimum stratum for roof-bolt anchorage but could not be used to make an accurate estimate of the anchorage capacity. (Author)
Evaluation of a Penetrometer for EstiMATING Roof-Bolt Anchorage
J. H. Stears (Autor:in)
1965
27 pages
Report
Keine Angabe
Englisch
Evaluation of penetrometer for estimating roof-bolt anchorage
| Engineering Index Backfile | 1965
Evaluation of a penetrometer for estimating roof-bolt anchorage
| TIBKAT | 1965
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