FIELD: mining.
SUBSTANCE: invention relate to mining and is used for fixation of excavations. Anchor according to the first version includes bush, filled with substance. Substance corresponds bulk material, fed into bush cased, permeable for liquid, which at interaction with bulk material forms hardening mixture, expanding during hardening. In the second version into casing with bulk material it is inserted bar. In the third version casing with bulk material is winded on rod in the form of spiral.
EFFECT: effectiveness increase of anchor ensured by laboriousness reduction of its preparation to work.
19 cl, 5 dwg
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Authors
Dates
2009-09-20—Published
2008-04-23—Filed