PROCESS OF STRIP MINING OF DEPOSITS Russian patent published in 1996 - IPC

FIELD: mining industry. SUBSTANCE: invention can be used for strip mining of deposits of mineral resources, for finishing operations in sections of underground workings, for opening and finishing of deep strippings with nonuniformly dipping group of deposits (at angle 20-45 deg to horizon), for dumping of toxic rocks and for incidental quarrying of construction materials from underlaying rocks. Process involves stripping of deposit, excavation and transportation of rock mass, dumping of barren rock into worked out spaces, formation of cross-overs over dumped rock. First of all deposits in flank of stripping on side of lying wall of deposit are developed. Deposit deepenings in flank of stripping are filled with overburden rock with addition of binding materials such as clay, for instance. High walls of dumped rock are anchored by blocks and slabs. Deepening of deposits are spread, enhanced in space, shielded and filled with toxic rock and there covered with water insulating layer. EFFECT: expanded application field of process. 2 cl, 3 dwg