FIELD: mining.
SUBSTANCE: method includes erection of vertical rising wells onto a drained water-bearing horizon, besides, from each rising well in a point located by 30-50 m below the water-bearing horizon soil, an additional side shaft is cut with a rounding (curve) radius of around 50 m. The side shaft is tunnelled after it reaches drained rocks in direction of the next rising well to the point of exit of the next additional shaft into drained rocks. It makes it possible to create a closed drainage contour and to practically eliminate ingress of underground waters into a protected mine or pit.
EFFECT: reduced ingress of underground waters to minimum permissible values.
2 dwg
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