A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rock cuts, tunnelling speeded by bolting
Improved drilling technique helps rock bolts and anchors to replace timbers in construction and mining practice; three types of rock bolts: slotted, expansion shell, and hooked rock anchor; first two used in mining as stabilizer of back and walls and third is used to bind poured concrete to virgin rocks.
Rock cuts, tunnelling speeded by bolting
Improved drilling technique helps rock bolts and anchors to replace timbers in construction and mining practice; three types of rock bolts: slotted, expansion shell, and hooked rock anchor; first two used in mining as stabilizer of back and walls and third is used to bind poured concrete to virgin rocks.
Rock cuts, tunnelling speeded by bolting
Eng Contract Rec
1956
Article (Journal)
English
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