SU1122824A1 - Method of mining seam deposits of minerals - Google Patents

Abstract

THE METHOD OF DEVELOPING PLASTIC DEPOSITS OF THE USEFUL MINERALOWS. , characterized in that, in order to increase the safety of the development of wetlands by eliminating the possibility of breaking water saturated pores d the rocks, initially on the slope of the pillar, lay the rocks exposed from weak water-saturated rocks in front of the trench, and the weak water-saturated rocks of the next 9 passes through the exposed rock platform lie on the rock in this place in the mine; drainage cavities.

Description

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The invention relates to mining and can be applied in open pit mining at shallow depths in wetlands.

There is a method of developing reservoir deposits of minerals using the best transport system, which includes opening the mineral by means of an excavator, excavating the mineral and laying the waxed space by means of rock tl 3. TC in a fluid and plastic state, and reserves of minerals, confined to such sites, go into losses.

The closest to the invention to the technical essence and the achieved result is the method of developing reservoir mineral deposits, including opening the mineral in trenches with excavation of subsurface rocks in the inlets, forming pillars between the trenches, sequential laying of overburden substapes on the ridge from the developed area and with a lag on the previously laid rocks, excavation of the mineral C2J "

The disadvantage of this method is the relatively low safety of development due to the possibility of penetration of water-bearing rocks from the dump into the process space.

The aim of the invention is to improve the safety of the development of wetlands by eliminating the possibility of breakthrough of water-bearing rocks into the technological space.

This goal is achieved by the fact that according to the method of mining stratal mineral deposits, including opening the mineral in trenches with excavation of overburden rocks by sub-steppes in the stopovers, forming pillars between the trenches, sequential laying of uneven rocks of the sub-steppes on the side slope from previously laid rocks, useful excavation

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fossil, initially on the slope of the pillar, the rocks of the rocky outcrop exposed from weak water-saturated rocks are laid ahead in front of the trench, and the weak water-saturated. The regular rocks of the next entry of the exposed rocky subpath are placed on the rocks, while the drainage cavities pass in the developed space in place of the rock formation.

FIG. 1 shows the plot plan; in fig. 2, section A-A in FIG. one.

15 The method is carried out as follows.

The development of a horizontal or hollow layer of the mineral 1 5 overlapped by stable and rocky or semi-rocky 2 and water-saturated weak rocks 3 takes place in trenches with formation of pillars 4 between them. Excavator 5 is installed on the sub-step, represented by 5 stable stable rocks 1-1-1, trimmed with the overlying water-saturated weak rocks.

Rock is excavated and placed on the slope of a forming pillar in the developed area. the property of the previous tranE1; ei. Initially, the rocks 2 are removed to the initial part of the pillar with the minimum required sharp angle of rotation of the excavator boom. At a later stage, the rocks 2 are laid on a slope forward as the excavator moves. This contributes to the strengthening of the slope of the pillar.

Then, the water-saturated weak rocks 3 are excavated and placed in the worked-out space of the previous trench and on the previously laid rock layer 2. The mineral resource is mined with a mining ledge using known means of mechanization and transported to the surface.

In the underlying minerals, the drainage trench 6 passes along the lower edge of the trench slope with a slope towards the central catchment area. When laying rocky rocks 2 nd slope of the pillar, the drainage trench b is filled with these rocks to form overburden 3 and they consolidate

The precarious method and the specified sequence of operations make it possible to work out the marshy areas of the deposits, which eliminates the loss of a significant part of the minerals, significantly increases the efficiency of development and creates conditions for obtaining more productive lands during the subsequent recultivation of the land areas disturbed by mining.

Claims (1)

METHOD FOR DEVELOPING LAYERED DEPOSITS OF USEFUL FOSSILS, including opening of minerals in trenches with excavation of overburden rocks by access points, formation of pillars between trenches, sequential laying of overburden rocks of subsurface deposits on the slope of the worked out quarry and lagging the fact that, in order to increase the safety of the development of wetlands by eliminating the possibility of a breakthrough of water-saturated rocks in logical space, initially at a slope pillar stack rock bares from weak water-saturated rocks rock podustupa on the upstream side of the trench, and the weak water-saturated rocks once stope exposes rock podustupa laid on rocks _t wherein in the goaf at the laying site rocks tested drainage cavity. I 1