Study and Enhancement of Underground Mining Technologies to Prevent Earth’s Surface Failures

Abstract

The work contains studies of the problem of stabilizing geodynamic processes in the rock massif, preservation of the daylight surface and ecological balance in the mined-out and operating mine fields of Ukraine. The main regularities of influence of sublevel-room mining systems with backfilling on changes of the stress-strain state of the rock massif and the main structural elements of the block are determined. Rich iron ore mining by underground methods and subsequent transition to the sublevel-room mining system with backfilling is modeled. New technologies for mining ore deposits are developed and current ones are enhanced to prevent the earth’s surface failures, stabilize landslide and displacement zones within the boundaries existing at the time of transition to systems with backfilling. The developed resource-saving technologies of mining can significantly enhance ore extraction indicators and the environmental condition of the basin by locating waste dumps and disposing wastes of mining enterprises in the mined-out area of underground mines.