SU1203241A1 - Method of mining mineral deposits with filling-up of excavated space - Google Patents

Description

The invention relates to rock formations and can be used in underground mining.

The purpose of the invention is to reduce the development costs and improve the safety of mining operations by increasing the adhesion forces between the bedding layers.

FIG. 1 shows the erected tab in the chambers of the first stage; FIG. 2, a backfill array, is formed when the field is being built by 1-sh in the chambers of two queues; in fig. 3 - the same, when processing the entire field; in Fig. 4, the location of the ar 1 1p h д dich elements in the soil has been worked out) and the pledged chamber. Work out the ore reserves of the chambers of the first stage. After working the chambers in their soil, they make undercuts into which metal stems 1W are inserted. Next, on three lower faces of the cross section of the chamber, formwork is erected and the filling material is poured. Then, with a lag equal to the hardening time, the tailings are worked and laid cameras of the second stage under the protection of pledged cameras of the first stage. Thereafter, the ore reserves of the chambers of the next stage are recovered, with the upper part of the chambers having a trapezoidal cross-sectional shape being the bookmark of the chambers of the overlying layer. Further, all the cameras are worked out like third-stage cameras, t, e, under the protection of the bookmark erected in the cameras of the previous queues. Thus, the backfill massif of the recovered deposit acquires a configuration resembling a honeycomb beehive.

After mining the ore reserves of each chamber in the soil, podborki are made through 1–1.5 m parallel to the contour of the future chambers of the underlying layer I, i.e. at an oi mass displacement angle oi. Then reinforcing elements 2 are inserted into these peaks. (Drill steel waste can be used and backfill material is fed into the chambers. When mining the chambers of the underlying layers, these rods will appear in the walls of the chambers and can be used for hanging on these lighting cables, luminaires, ventilation hoses, etc., in addition, this will have a positive effect on improving the safety of mining operations by increasing the stability of the rock of the bookmark.

%%

vniipi

Circulation 481

Order 8399/38 Subscription

.one

Branch PIP Patent,

Uzhgorod, Projecto st., 4

Claims (2)

1. A METHOD OF DEVELOPING DEPOSITS OF USEFUL FOSSILS WITH THE LAYING OF THE EARNED SPACE, including layer-by-layer excavation of minerals in descending order, having a cross-sectional shape, regular six squares, with an offset of one relative to the other half the height of the reinforcement and a quarter of the width of the elements before setting and laying the worked out space with a hardening mixture, characterized in that, in order to reduce development costs and increase the safety of mining operations bot by increasing the adhesion forces between the layers of tabs, reinforcing elements installed in the holes that are drilled in the joints of the layers and the angle displacement ore array and stowing perimeter zahodok three bottom faces form a free space within them. 2. The method of pop. 1, characterized in that the free space is formed by installing up to laying the mined-out space along the perimeter of the three lower edges of the formwork. SU., „1203241 Figure 1