SU1465571A1 - Trenching method - Google Patents

Abstract

The invention relates to the mining industry and m. used in open pit mining. The goal is to increase the productivity of trenching by reducing the angle of rotation of the dragline bucket (D). The rock is removed from the trench by ditches across the width of the trench. From one point to the next, the forward development along the trench in its contours is moving ahead. Then, from the same point, they are shifted to the advanced development by the bucket D across the axis of the trench from its side, the remaining along the side of the rock of the subsequent approach and push them to the slope of the nearest side to the D side of the advanced generation. After that, back along the course from the same point, the breeds of the last stope and the rocks pulled down over the slope from the previous points will work. After installing D on. The next point, a standing cycle, is repeated. 4 il. WITH/)

Description

one

This invention relates to the mining industry and can be used in open pit mining.

The purpose of the invention is to increase the productivity of penetration by trenches by reducing the angle of rotation of the dragline bucket.

FIG. 1 shows a diagram of trenching in the proposed method, in plan; in fig. 2 shows section A-A in FIG. one; on fig.Z - section bb in fig. 1j in FIG. 4 shows a section B-B in FIG. one.

The method is as follows.

The rock is pulled out of the trench with a dragline by successive tread width entries. From the point one hundred and one dragline 2 work ahead on

in the course of movement of the drainline, the advanced generation 3 along trench 4, in its contours abcda (see Figs. 1, 2 and 4). Then, from the same point, they are shifted to the advanced production 3 by the dragline bucket 2 across the axis of the trench 4 from its side ab, remaining along the side .b of the subsequent breed 5 (see flg, 1 and 2) to the dragline 2, the beams of advanced generation 3. After that, back along the course from the same point, one hundred and one of the dragline 2 work out the rocks of the subsequent approach 6 and slid over the slope ef from its previous points. one hundred or seven rocks (see figs. 1 and 3).

The proposed method of driving trenches ensures the movement of rocks 3 in

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Claims (1)

Claim A method of digging trenches, including excavation of rocks with a dragline with successive widths of cuts, cos. higher cutting rates by excavating one of the cuts, moving rocks of the subsequent cutting into the cutting and working out of displaced rocks _ together with the rocks of the last cutting, characterized in that, in order to increase the productivity of trenching by reducing the angle of rotation of the driveline bucket, The southerly forward excavation is created by excavating the rocks ahead along the movement of the dragline from one standing point in the trench contours, moving the rocks of the subsequent entry into the advanced excavation 15 ku is produced by shifting the rocks with a dragline bucket across the trench extension, and the last run is worked out from behind along the dragline movement together with the displaced rocks and after the dragline is installed at the next standing point, the work cycle is repeated. fie. 1 6 ~ b fieA