METHOD FOR EXTRACTING DEPOSITS OF WATER-SOLUBLE MINERAL RESOURCES Russian patent published in 2005 - IPC

FIELD: mining industry.

SUBSTANCE: method includes extraction of resources of mine field by extraction fields, limited in space by surfaces of pyramids sides, vertexes of which do not go beyond lower limit of water-protective massif, allowed when fracturing cracks are absent, and slanting angle of sides of these pyramids is greater than or equal to angle of full displacements of rocks of natural massif, encased in pyramids. Within each pyramid concurrently with extraction of mineral resource artificial carrying block is formed, being in force interaction with rocks surrounding pyramid. Prior to extraction of deposits of mineral resources above future extracted space in water-protective massif a mesh of environment-protective mines is formed with nodes, positioned below pyramid vertexes, limiting extraction fields, and threads - environment-protective mines, directed along sides of these pyramids. Nodes of mesh, mating and/or intersection of environment-protective mines - are preferably positioned below vertexes of pyramids at distance from vertexes no less than height of possible ceiling of crack formations and cave-ins above connection and/or intersection of environment-protective mines.

EFFECT: higher personnel safety.

2 cl, 1 dwg, 1 ex