FIELD: mining. SUBSTANCE: method involves using reinforcing members made in form of net from basalt filaments arranged in two rows in the filling mass on the boundary to separate it from the rock mass under mining. The second row is set up inside the chamber at a distance depending on chamber width. EFFECT: enhanced effectiveness in isolating waste rock. 2 dwg, 1 tbl
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Authors
Dates
1995-11-10—Published
1991-11-29—Filed