Hydraulic and earth engineering – Earth treatment or control – Rock or earth bolt or anchor
Patent
1994-12-22
1996-09-17
Bagnell, David J.
Hydraulic and earth engineering
Earth treatment or control
Rock or earth bolt or anchor
4052591, 4053022, 411 1, 411 8, 411 9, E02D 1700, E21D 2000, E21D 210002, F16B 3102
Patent
active
055562337
ABSTRACT:
A rock anchor includes an elongate element. A transverse dimension of a portion of the elongate element is enlarged. The transverse dimension is reducible on the application of a suitable force applied to the enlarged portion. The invention extends to a tensioning device for use with the rock anchor and to a yielding anchor assembly which includes the rock anchor and the tensioning device.
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Bagnell David J.
Mayo Tara L.
RSC Mining (Proprietary) Limited
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