RU1813878C - Process of formation of dumps - Google Patents

Abstract

The invention relates to mining, in particular to open pit mining. The aim of the invention is to increase the capacity of the blade dumped on an uneven surface, while increasing its stability. On the surface of the dump between the outlets 1 of the thalweg 3, embankments 8 are formed at an angle to the front of the dump of the dump with the working platforms 9 on them, we take the working platform 9 adjacent to the exit of the log, filling the log is done from the specified embankment, after which from the outputs 12 of the thalweg formed from the leading embankment 19, pour the rock, forming a new log in the indicated place, then form the leading embankment, then the cycle of work is repeated with filling the space between embankments 8 and creating the surface of the dump with ramps to the leading embankments 19.1 zp f-ly, 5 ill. ate

Description

The invention relates to mining, in particular to open pit mining.

The aim of the invention is to increase the capacity of the blade dumped on an uneven surface, while increasing its stability.

Figure 1 shows the formation of the working platforms of the embankments and the filling of the logs from them; Fig.2-formation of new logs; Fig. 3 is a schematic diagram of the formation of the upper blade area; figure 4 is a section aa in fig.Z; figure 5 is a section bB in Fig.Z.

The proposed method is carried out as follows.

In the areas where the exits 1 of the logs 2 and their thalwegs 3 are located on the surface 4 (Fig. 1) of the blade 5 (Fig. 5), stars 7 are created by dumping the prisms 6 and mounds 8 are formed on the surface 4 of the blade 5 between the outputs 1 of the thalweg 3 at an angle to the front dump dump with work sites 9 on them (figure 1). Each platform 9 is adjacent to the corresponding exit 1 of the log 2 on the surface 4 and the log is filled with the indicated embankment 8 to a height determined from the condition

00

s

00

Xi

00

hn rShaSs h + hn-fr

0)

where hn is the excess of the level of the working platform 9 of embankment 8 over dump 5, m;

h3 is the critical height of the slope 10 dumped into the log 2, which is determined taking into account the curvature of log 2 in the plan, m;

h is the height of the blade, m,

. Fri - excess of the lower edge of the slope 10 sent to the log 2 over the base 11 of the dump 5 m, keeping hn Fri (Fig. 4), since the value hn - hT takes into account the possible increase in the height h of the slope, which implements its excess stability, formed due to curvature the slope of the blade 5 in plan, and ensures the completeness of filling the capacity of the blade dumped onto an uneven surface.

For example, with It 5 m, PP 7 m (i.e. hn It) and h 30 m according to condition (1) 7 PZ 32 m, i.e. 32 30 m, otherwise the goal will not be achieved.

After that, from new exits 12 bifurcated by slope 10 thalweg 3 to sections 13 and 14 s. the working platform of the surface 4 of the blade 5c, focusing on the slope 10 (Fig. 5), pour the rock into the prisms 15. forming a new log with slopes 16, 17 and the thalweg 18 (Fig. 2). Thus, from the exits 12 formed with the leading embankment 19 of the previous cycle of work, the rock is poured into the rock, forming a new log in the indicated place, after which it is filled up within the prism 10 (Fig. 2) and a new leading embankment 19 is formed, then the work cycle repeated in the same order, i.e. between the outputs of 1 thalweg of 3 adjacent work cycles form a mound 8 and a slope of 10, etc. In this case, the embankment 8 between the outputs 1 of the thalwegs 3 is formed at an angle determined from the expression

A2 f 5 arctg

where d is the angle of inclination of the axis of the embankment 8 on the dump to the front line of the dump, deg;

Ф is the shortest distance along the surface 4 of the dump between the lines of the existing and former dumping fronts, m;

Shn is the width of the leading embankment along the top, m,

which makes it possible to reduce the resultant angle of mowing of dump 5 with embankments 8 on convex, for example, the least stable sections 21 in terms of its sections, and thereby increase the degree of its stability.

For example, with Ф 25 m, Шн 50 m

2 .25 according to expression (2) of arctg, -Q.

those. 6 45 °.

The space between embankments 8 is covered with rocks lagging behind the front of the dumping dump and form a new turn

5 . YU

fifteen

20 - 25 30 35

40

45

55

fifty

Number 22 with exits 23 (Fig.Z). In this case, the roads respectively on the surface 9 of the embankment 8 and along it on the surface 22 are drilled. about

The use of the proposed dumping method provides the following advantages over existing methods.

The filling of the embankments 8 with the formation of the surface 22 on the surface 4 increases the capacity and stability of the dump 5 by compacting the embankment 8 with dump trucks, compacting the inclined layers of rocks under the races, creating an additional load on the dump 5 from the embankments 8, increasing the adhesion of the rocks in the dump by compaction, ensuring the rational location of the leading embankment 19 and embankment 8 relative to the uneven base 11 of the blade 5 and the use of increased stability of the dump concave in terms of slope, reducing the resultant its slope angle on planes convex in plan and increase of slope angle on dump areas concave in plan, increase in volumes of the leading embankment, dumped under conditions of clamping by forming and filling a new log, forming from slope 10 and thalweg 3 concave in the slope profile and abutment sprinkled into the prism 15 into the slope 10, equalizing the stability of the slopes along the front of the dump formation. In addition, the introduction of works in the indicated sequence and limits reduces the cost of bulldozer and truck operations by increasing the speed of the machines under conditions of increased stability of slopes and reducing the volume of work of bulldozers, which reduces the environmental impact by reducing the volume of exhaust gases.

..

Claims (2)

1. The method of dumping, including filling along the front of the leading embankments with the formation of logs, filling the logs from the working sites of the surface of the dump with the leading embankments formed in the indicated places, characterized in that, in order to increase the capacity of the dump dumped on an uneven surface while increasing its stability , form a mound on the surface of the blade between the outlets of the thalwegs at an angle to the front of the dumping dump with working platforms on them, and the working platform adjacent to the exit of the log, filling logs t water with said mound to a height defined by the conditions h h3 h + hn- hb where hn is the excess of the level of the unloading site under the dump / m; n3 — critical height of the slope dumped into the log, determined taking into account the curvature of the log in plan, m; hi is the excess of the lower edge of the slope to be logged over the dump m, and, having stood hn hT, then the rock is poured from the thalweg outlets formed with the leading embankment, forming a new log in the indicated place, after which the leading embankment is formed, then 0 the work cycle is repeated in the same order. 2. The method according to claim 1, characterized in that the embankments between the outlets of the thalwegs are formed at an angle determined from the expression: (5 arctg2 f / n, d is the angle of inclination of the embankment on the dump to the front line of the dump, m; Ф is the shortest distance along the surface of the dump between the lines of the existing former front of the dumping, m; Шн - width of the leading embankment by eepxy. Vi. g r # s Fig. /. ё.2