METHOD FOR PROTECTION OF POTASH PIT AGAINST INFLOW OF UNDERGROUND AND RIVER WATERS

摘要

Disclosed is a method for protection of potash pit against inflow of underground and river waters through drilling wells in zone of water-bearing horizon. Prevention of for water inflows to pit are performed with alternation through row of vertical injection wells drilled from earth surface across fractured-karsted water-bearing horizon till intersection with its base, and through another row of inclined injection wells drilled along river bank under its channel, by stepped injection to water slips and karsts through those wells of designed volume of water-insulation composition for formation of double watertight barrier at dangerous side of potash pit.