SU994736A1 - Method of mining mineral deposits - Google Patents

Description

(54) METHOD FOR DEVELOPING USEFUL FIELDS

one

The invention relates to mining and can be used in underground mining of minerals in downward order with filling the mined-in space with a hardening mixture.

There is a known method of developing ore deposits in horizontal layers from top to bottom with drilling and blasting blasting and filling the developed space with hardening mixture 1.

The closest technical solution to the invention is a method of mining mineral deposits, including excavation of mineral layers from top to bottom, mining layers in which pass split layer mines, drilling and blasting of mineral deposits from them, temporary storage of recovered mineral resources, isolating it from penetration of the bookmark and laying out spent visits with hardening mixture 2.

The disadvantages of the known methods are the large amount of rifling and the low intensity of the excavation due to the UNSCORDABLE

It is necessary to undergo split production for mining every approach.

The purpose of the invention is to reduce the volume of rifled work and increase the intensity of excavation.

5 The goal is achieved by the fact that

according to the method of developing mineral deposits, including mining the mineral layers from top to bottom, mining layers, which pass split layer workings, drilling and blasting, from them mineral deposits, temporary storage, isolation of broken mineral, and laying spent spent minerals hardening with a mixture, the split layers of mine workings pass on the border of two adjacent stopovers, from which the mineral resources in both x, discourage minerals in the stope from vyrabotnannogo

Claims (2)

2 spaces and store it within the contour of the split production, then after the required material has been set up by the material of the bookmark, the mapped minerals are removed from the split production, and after working off the approach from the ore massif they are laid simultaneously with this approach. FIG. 1 image / csn vertical section of the haul being worked; in FIG. 2, node I in FIG. one; in fig. 3 shows section A-A in FIG. 1. The deposit in the plan is divided into panels, which, in turn, are divided into sloping layers by thickness (with a layer inclination angle equal to or slightly larger than the natural spreading angle of the bookmark). In order to prepare for the clearing recess, layer mining 1, exit 2 and flanking slope 3 are used for each layer, which serve to transport the mineral to the ore floor 4 materials and ventilation. Fresh air from the haulage horizon through the rising 5 and the layer workings 1 enters the cleaning holes of the inlet 6. Through the assembly ventilation openings 7 and the rising walls 8, which simultaneously serve to lay the stowing pipelines, the outgoing jet enters the ventilation-stowing horizon (in the drawing shown). On the basis of the soil, over the entire length of the soil, on the border of adjacent inlets, split lay-workings 9 are made, from which they drill and repulse stocks. Depending on the drilling equipment used, the stocks in the stopovers are filled with either a set of fan shpur or a roof of the stoppers with fan holes, and the beads with parallel holes and beat off with sections (sections), the length of which is selected based on the performance of the loading and hauling equipment. It is also possible oburianie loops with cyclical blasting .. Clearing the recess begin in one of the drilled approaches. Repulsed mineral 10 in the split production circuit is temporarily stored and coated on it 11, preventing penetration of the bookmark, and then filled in with the finished tab with filling tab 12. To increase the angle of repulse of ore that preserves the contour of the split production, application can be applied. a layer of sprayed concrete (including on a metal grid, laid on the pile of a broken mineral) with some lag from the bottom, blasting of knobs on the board of rifled excavation in the adjacent slugger stope to a depth of about 1 m or holding split vfabotki recessed relative zahodok soil. After setting the standard strength of a mineral, the mineral in the contour of the split production is removed by loading and delivery equipment, thereby restoring this production, and from it the similar approach is worked out in the same way. After it has been worked out, the developed space is filled with a bookmark, including the restored split production. Similarly, the remaining entries in the layers are processed. Making the roof of the lower layer of the arched form, increasing its stability, can be done by using a grader or loading-hauling machines. The use of the invention will make it possible to reduce the cost of excavating the mineral by reducing the volume of the rifling work and increasing the use and productivity of the drilling equipment as a result of simultaneously drilling two bills from one split production. The invention The method of mining mineral deposits, including the excavation of mineral fossil layers from top to bottom, mining layers in which pass split layer development, drilling and blasting of mineral reserves from them, temporary storage of recovered mineral, its isolation from penetration and laying out spent hardening mixtures, characterized in that, in order to reduce the volume of rifling and increase the intensity of the beam, the cut At the border of two adjacent stopovers, of which simultaneously stock up mineral resources in both stopovers, beat the mineral in the stowage from the side of the mined-in space and store it within the split production contour; the split production is removed, and after working the stopping from the side of the ore massif are laid simultaneously with this stopping. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 3286672, cl. E 21 C 41/06, 05.13.81. 2. USSR author's certificate number 706535, cl. E 21 C 41/06, 1978 (prototype). J L ; -V .-- ::. I: vV -.;. .:. - i - - -