A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Industrial application of wooden roof bolts
Experience gained in Kuznetsk basin, in seam of 6.2 m thickness, dipping at 67°; wooden roof bolts consist of rods, 0.8 to 1.2 m long, and 38 to 40 mm in diam, with slits on both ends, into which wooden wedges are inserted, after installation in borehole.
Industrial application of wooden roof bolts
Experience gained in Kuznetsk basin, in seam of 6.2 m thickness, dipping at 67°; wooden roof bolts consist of rods, 0.8 to 1.2 m long, and 38 to 40 mm in diam, with slits on both ends, into which wooden wedges are inserted, after installation in borehole.
Industrial application of wooden roof bolts
Promyshlennoe primenenie derevyannoi ankemoi krepi
Yakovlev, N.I. (author) / Shirokov, A.P. (author) / Zapreev, S.I. (author)
Ugol ; 32
1957
2 pages
Article (Journal)
Russian
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