A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Use of torque wrench to determine load in roof bolts -- I. Slotted-type bolts
Importance of roof bolting for coal and metal mine roof supporting; tests of slotted type bolts indicate that torque of 260 ft-pounds applied to nut produce load of 10,000 plus or minus 2700 lb on bolt; results show that neither type of thread nor type of rock affects torque-load relationship for slotted type bolts.
Use of torque wrench to determine load in roof bolts -- I. Slotted-type bolts
Importance of roof bolting for coal and metal mine roof supporting; tests of slotted type bolts indicate that torque of 260 ft-pounds applied to nut produce load of 10,000 plus or minus 2700 lb on bolt; results show that neither type of thread nor type of rock affects torque-load relationship for slotted type bolts.
Use of torque wrench to determine load in roof bolts -- I. Slotted-type bolts
U S Bur Mines -- Report Investigations
Barry, A.J. (author) / Panek, L.A. (author) / McCormick, J.A. (author)
1953
7 pages
4 Supp Plates
Report
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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