FIELD: mining.
SUBSTANCE: invention relates to mining, particularly, to sliding anchor. Sliding anchor comprises anchor rod whereon sliding control element with through hole is arranged to receive anchor rod. Note here that said sliding control element comprises case of bodies of slippage provided with, at least, one recess to receive said body that stays in contact with anchor rod outer surface. Each aforesaid recess is arranged in aforesaid case tangentially to anchor rod outer surface. Note here that envelope surface of each recess extends for preset amount into free clearance of though hole, while each body of slippage fills the clearance in its recess.
EFFECT: controlled load onto sliding anchor in different phases of opening spaced in time.
20 cl, 8 dwg
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Authors
Dates
2011-01-27—Published
2007-11-09—Filed