BOLTING OF MINE WORKINGS Russian patent published in 2001 - IPC

Abstract RU 2172409 C2

FIELD: mining. SUBSTANCE: bolting includes steel rod made of lengths interconnected by threaded sleeve. Thread of sleeves and joining part of rod lengths is flattened metric. Flattened thread height-full thread height ratios is 0.414-416 for sleeve and 0.586-584 for rod. EFFECT: provided high force characteristics of bolting, especially in slim holes and full strength of anchor over its entire length. 3 cl, 3 dwg

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RU 2 172 409 C2

Authors

Manujlov Ju.A.

Moor V.F.

Dates

2001-08-20—Published

1999-10-20—Filed