Increasing of drainage boreholes stability that drilled from surface and undermined by longwalls
Nazymko V.V1 , Diedich I.O2
1Donetsk National Technical University, Krasnoarmiysk, Ukraine
2PJSC “Donetsksteel” – metallurgical plant”, Donetsk, Ukraine
Min. miner. depos. 2014, 8(1):61-66
https://doi.org/10.15407/mining08.01.061
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ABSTRACT
Mechanism of drainage boreholes destruction that drilled from surface and undermined by longwalls is determined. Method of stability providing and labor ability of boreholes is developed.
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