FIELD: mining.
SUBSTANCE: anchor of mine workings consists of load-carrying element with tightening device on one edge and lock fixed on the other edge. Lock is made in the form of fork located coaxially with load-carrying element, and balance-beam with unbalanced arms, which is installed on rotation axis between fork teeth. Anchor is equipped with rod one end of which is connected to the arm and the other end - to tightening device arrangement cavity.
EFFECT: improving rock mass reinforcement reliability.
4 dwg
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