SU1186801A1 - Moliquidating mine workings - Google Patents

Abstract

METHOD FOR LIQUID TREATMENT OF MINING DEVELOPMENTS, including isolating the open space with hermetic jumpers, feeding the pulp into the isolated space, filling the exhausted space with pulp from bottom to top and creating excessive pressure in the empty part of the exhausted space as it is filled with pulp, characterized by preventing the movement of rock mass during the development of salt deposits during the entire period of filling up lpu fed at its lower mark at § This creates an overpressure of air compression in the unfilled volume) hydrochloric part of the space and its DC Subfam hered nt 1m.

Description

The invention relates to the mining industry and can be used, for example, to eliminate mine workings in salt mines.

The purpose of the invention is to reduce the cost of preventing the movement of the rock mass during the development of salt deposits.

FIG. 1 shows a schematic diagram of the implementation of the method of eliminating mine workings in a salt mine; in fig. 2 is a diagram of a mined mine, (view across the strike; in FIG. 3, the view along strike.

The method is carried out as follows.

To eliminate the mine workings of the salt mine, pipeline 1, laid in the main central shaft 2, crosscut 3 and haulage 4, liquid waste 5 of the processing plant with a solid: liquid ratio of 1: 4-1: 6 is delivered to the lower pumping horizon and released from the pipes in the lowest part, above which there are no protected objects on the surface. The lower part of the excavated space 6, the mine workings of the intermediate horizons 7 of the cross-section 3 and the main trunk 2 are filled with liquid waste 5 from the bottom up.

Liquid waste, filling up the mine workings, displaces the air into the upper part of the high-level space 8 and creates an air cushion there. In order to reliably seal the overfilled spaces, the airtight jumpers 11 with pressure gauges 12, which serve to control the jumpers of the intermediate horizons, temporarily, before filling the liners, and jumpers Roadway 11 is permanently isolated from liquid waste. The pressure of compressed air in the developed space 8, exceeding the hydrostatic pressure, balances the mountain pressure in the upper part of the developed space B and the weight of the liquid waste column in the main trunk 2 prevents the flow of ground and mine water along the cracks, prevents the destruction of the walls, pillars 13, roof 14 and the soils of the 15 developed spaces 8 and, ultimately, prevents the subsidence of the earth's surface under the influence of mining.

After the main barrel is filled with liquid waste, the main and vent shafts, in accordance with the common safety rules, are overlapped by bridges, respectively 16 and 17.

The use of the invention provides a reduction in the cost of eliminating salt mines, reducing land subsidence and the possibility of dumping liquid waste from enrichment plants, which increases the efficiency of the development of salt deposits.

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Claims (1)

METHOD FOR ELIMINATING MINING OPERATIONS, including isolation of the worked-out space with sealed bridges, feeding pulp into the isolated space, filling the worked-out space with pulp from the bottom up and creating excess pressure in the unfilled part of the worked-out space as the workings are filled with pulp, characterized in that, in order to reduce costs to prevent displacement of the rock mass during the development of salt deposits, during the entire period of filling the mined-out space of the pulp fed to its lower mark, while overpressure is created by § compressing the air in the volume of the unfilled part of this space and keeping it constant. SU. „, 1186801>