METHOD FOR THE DEVELOPMENT OF MINERAL DEPOSITS BY AN UNDERGROUND METHOD USING TUNNEL-BORING MECHANIZED COMPLEXES Russian patent published in 2023 - IPC E21C41/16 E21D9/00 E21C27/00 

FIELD: mining.

SUBSTANCE: invention relates to the development of deposits of ores of ferrous, non-ferrous metals and mining and chemical raw materials, as well as kimberlite pipes by an underground method in predominantly hard rocks. The method for developing mineral deposits by underground method using a mechanized tunnel-boring complex includes the installation of a tunnel-boring complex in an installation chamber, mechanical destruction of the rock in the tunnel and its transportation to the surface in two stages. The second stage is carried out using the main conveyor. The passage of the tunnel-boring complex of a given route and subsequent filling of the mined-out space with backfill materials are monitored. As a tunnel-boring mechanized complex, a gripper tunnel-boring mechanized complex with a rotary actuator is used. Penetrations for the development of minerals are carried out along tunnels parallel to each other, originating at the exit from the installation chamber. The first stage of transporting the destroyed rock is carried out using a conveyor built into the tunnel boring complex. When the tunnel-boring complex reaches a predetermined point in the tunnel created by it, it is returned to the exit from the mounting chamber for further drilling in the next tunnel. When the tunnelling complex passes through the tunnel, the deviation of its angular position in the horizontal and vertical planes and the angular velocity of such deviations, as well as the linear deviations and the rate of their change from the given path of movement in the tunnel, are determined, a smooth curve is formed as a function of the obtained parameters of the angular and linear deviations and returned by trajectory formed by a smooth curve of the tunnel-boring complex to a given route. As a rotary actuator, a round-section rotor with rock-cutting elements in the form of conical cutters with hard-alloy inserts is used.

EFFECT: increasing the accuracy of the tunnel-boring mechanized complex following a given route, reducing the percentage of dilution of minerals, increasing the efficiency of the method both by developing areas of the ore body with a high content of mined minerals, and by ensuring the continuity of the mining process without dismantling the tunnel-boring mechanized complex.

2 cl, 5 dwg