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Anchorage testing of mine-roof bolts -- 1: Slotted-type bolts
Apparatus consists of: hydraulic jack assembly for loading bolt and device (extensometer or cathetometer) for measuring displacement of bolt as it is loaded.
Anchorage testing of mine-roof bolts -- 1: Slotted-type bolts
Apparatus consists of: hydraulic jack assembly for loading bolt and device (extensometer or cathetometer) for measuring displacement of bolt as it is loaded.
Anchorage testing of mine-roof bolts -- 1: Slotted-type bolts
U S Bur Mines -- Report Investigations
Barry, A.J. (author) / Panek, L.A. (author) / McCormick, J.A. (author)
1954
12 pages
12 Supp Plates
Report
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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