SU1677311A1 - Method for working gently sloping and inclined seams of minerals - Google Patents

Abstract

This invention relates to the development of mineral deposits under conditions of geological disturbances. The purpose of the invention is to reduce the cost of developing fields complicated by geological disturbances. The mining field is worked out with panels, and the panels with excavation pillars. From the day surface or from the underground workings, paired inclined workings pass through the mineral reservoir before contact with geological disturbances. The extraction poles are cut by penetration 1 of excavation drifts. Inclined workings are made at an angle of 30-60 °. to excavation drifts. The contours of violations are established by sinking exploratory workings from the lower ends of paired inclined workings, after which sinking excavation drifts are carried out. The reservoir mining begins from the boundaries of geological disturbances by the lavas limited by these disturbances. Then sequential commissioning of adjacent lavas is performed throughout the mine floor. Development of the reservoir is carried out by lavas from the boundaries, the floor with the transition of inclined workings clearing holes. 2 hp f-ly, 4 ill.

Description

The invention relates to the mining industry and can be used in the development of flat and inclined seams of minerals that are prone to disturbances.

The purpose of the invention is to reduce the cost of developing fields complicated by geological disturbances.

FIG. Figure 1 shows an example of pre-cutting a mine floor enclosed within the boundaries of disturbances identified according to geological exploration wells during the development of a formation under the sediments; figure 2 - section aa in figure 1; FIG. 3 shows an example of the development of an inclined coal seam that goes under sediment after adjusting the preliminary cutting of a mine floor; figure 4 - section bb in fig.Z,

The drawing shows: 1 and 2 — exploration sites drilled from the day surface, respectively, before opening the reservoir under development and up to failures 3 — contours of the violation boundaries according to the Neologo-exploration wells 1 and 2; 4 - excavation pillars of preliminary mine floor cutting; 5 and 6 - direction of paired inclined workings (the direction is chosen from the calculation of the angle / 30-60 ° to the contour of the excavation pillars); 51 and B1 - respectively, conveyor and auxiliary inclined workings, passed along

Os

x | vl 00

coal seam before contact with actual disturbances 7 or from underground mines; 8 - exploration workings, passed on the contact of actual violations, 7-9 - panels; 10 - pumps; 11 - industrial sites equipped on the surface; 12 - excavation drifts, surrounding columns 13 and 14 and carried out after adjusting the preliminary cutting of the mine floor; 15 - clearing face, equipped with a mechanized complex; 16 - lock jumpers.

The method is carried out as follows.

First, within the boundaries of 3 violations defined by the submitted exploration wells 1 and 2, the mine plan is pre-cut the mine floor on the panel, and with the distribution along the strike - excavation pillars 4, and to their contour at an angle / 30-60 ° - paired inclined workings 5 and 6 on the reservoir. Then, conveyor 5 and auxiliary 6 inclined workings are conducted from the day surface from the site 11 or from underground mine workings through the reservoir to contact with actual disturbances 7 and their lower ends are connected with exploratory workings 8. Exploration workings establish the contours of the actual violations 7 After the inclined 51 and B1 and 8 exploration workings are carried out, the preliminary cutting of the mine floor is corrected, after which the excavation drifts are carried out 12. The delineating pillars 13 and 14 and begin to excavate the coal . Development of the reservoir begins from the boundaries of the actual violations 7 and lead by lavas 13 and 14 with the transition by cleansing faces of 15 inclined workovers 1 and b1 with the sequential commissioning of adjacent lavas.

The distance between the conveyor 51 and auxiliary 61 slabs - each panel 9 is taken from the calculation of the possible installation of lock bridges 16 between them, ensuring the delivery of materials and equipment in the mine platforms and trolleys, and providing working pressure on the workings during the transition by clearing decks 15 inclined workings 51 and b1.

The reservoir mining is carried out in an upward order by the lavas from the boundaries of the actual violations at the beginning by selective lavas 13, limited by violations, and then by the lavas 14 throughout the mine floor without reassembling the equipment of mechanized complexes with crossing lavas of inclined workings. The ascending order of excavation of the excavation pillars creates the most favorable and safe for the development of disturbed, watered and flammable coal seams.

conditions of mining, as the entire incoming flow of polluted water into the lava goes into the developed space, where it is cleaned of sludge and the already cleaned enters the water tanks of the pump chambers. The excavation of the excavation pillars is carried out with mechanized complexes.

Coal from clearing and preparatory faces is transported by excavation

5 drifts, equipped with conveyors, to conveyor slopes 51, along which coal is delivered to the industrial site 11 or to the underground workout, equipped with conveyors. Delivery of materials, equipment and

0 people before the bottom are carried out along an auxiliary slope B1 and excavation drifts equipped with a rail track or a monorail road.

The air in the excavation areas serves

5 along the auxiliary slope B1 of each panel 9. The ventilation of the excavation sections is carried out depending on the gas-carrying capacity of the formation and the spontaneous combustion of the coal according to directing or return flow diagrams. With

In the development of fire-hazardous coal seams behind the clearing site from the side of the retained part of the excavation excavation, the developed space is treated with an antipyroic aqueous solution.

Claims (3)

Claim 1. A method of developing flat and sloping mineral layers, including mining the floor with panels, and 0 panels - excavation pillars, conducting paired inclined workings along the mineral reservoir and excavation drifts, contouring the posts, junction of inclined paired workings with excavation drifts at an angle of 30-60 °, working out with lavas from the floor boundaries with the transition of inclined workings with cleaning holes and sequential commissioning of adjacent lavas, characterized in that, with In order to reduce the cost of developing fields complicated by geological disturbances, paired slanting openings take place before contact with disturbances whose contours are established by penetration 5 exploration workings from the ends of paired inclined workings, then excavation drifts are carried out, and the reservoir mining begins from the boundaries of geological disturbances by the lavas limited by these disturbances, after which sequential commissioning of adjacent lavas takes place throughout the mine floor. 2. Method pop. 1, characterized in that paired inclined workings extend from the surface. 3. The method of claim 1, distinguished by the fact that paired inclined workings extend from underground workings. BUT // 51 V 2 16 V 540 Phage. four