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A platform for research: civil engineering, architecture and urbanism
Use of yieldable steel-ring sets at Silver Mountain
Heavy ground was encountered in drifting across shear zone; when rock bolts and timbering proved ineffective, it was decided to use 8 ft diam yieldable steel ring sets; rings were installed as face advanced; to supply temporary support while rings were being installed, face was spiled ahead of 5 ft round to be blasted; to compensate for deformation, larger diameter sets should have been used.
Use of yieldable steel-ring sets at Silver Mountain
Heavy ground was encountered in drifting across shear zone; when rock bolts and timbering proved ineffective, it was decided to use 8 ft diam yieldable steel ring sets; rings were installed as face advanced; to supply temporary support while rings were being installed, face was spiled ahead of 5 ft round to be blasted; to compensate for deformation, larger diameter sets should have been used.
Use of yieldable steel-ring sets at Silver Mountain
Min Congress J
Crandall, W.E. (author)
1960
4 pages
Article (Journal)
English
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