SU1624177A1 - Flexible canopy - Google Patents

Abstract

The invention relates to the crepe of cleansing faces and predestination for the mechanization of the crepe flooring of the working space of the IRPI - improving safety of the working stand for gripping work -::

Description

The invention relates to mining, in particular, to the fortifications of working faces, and is intended to mechanize the fastening of the developed space during the excavation of medium and thick steep coal seams, worked out by long pillars along a strike with a diagonal arrangement of drilling and blasting.

The purpose of the invention is to improve the safety of work when mining powerful steep seams with pillars in a diagonal bottom hole drilling and blasting method.

The figo presents the proposed flexible overlap in the plane of the reservoir with a system of long pillars along the strike with a diagonal location of the bottom, general view; on - section aa on Fig; in FIG. 03 — section BB in FIG. 20

The flexible overlap consists of sections 1, made of base beams 2, and arches 3 installed between them, connected at their ends in a row and interconnected by plates 4 and cable ties 50 Gaps between sections are covered by aprons 6

Depending on the thickness of the formation, parallel rows of sections 7 are installed across the strike, interconnected at the base with 2 cable ties 8 "A metal mesh 9 is installed above the rows of sections

Under a series of sections, a passage 10 is taken out, in which there is an additional lattice overlap 11 having steps 12 for moving people about

0

five

four

Between the intersection of section 1 and the additional overlap 11, safety shelves with windows 13 are installed, which are connected by flexible connections 14 with overlapping sections and with additional intersections

Under the arches of the sections on the blocks 15, the rope 16 is pulled to the winch 17. The rope is connected by additional hangers 18c with safety shelves and overlap 11.

Under sections between rows, transverse passages 190 are taken out.

For the coal bypass, there is a bunker 20 and a haulage drift of 21 "

The work on coal mining and bottomhole mounting is carried out as follows:

Passages 10 under the rows of sections are taken out in advance along the entire length of the bottom. The coal is dredged using drilling and blasting operations from an additional lattice overlap 11 "Before the blasting of holes with a winch 17, the ropes 16 and suspension 18 pull. retraction from the slab section

Removable coal is bypassed along the passage to the bunker 20 and to the haulage drift 21 o

After the deepening of the passages under all the rows, the support pillars are dredged under the bases of the floors in the direction from the side of the bed to the side and the rows of sections move to the face under the action of the collapsed rocks.

In the case of a carbon trampling a passage under a series of sections, the rolling is done through transverse passages from the adjacent row.

The development of powerful steep seams of coal leads with a shield system, CGP, a system of sublevel drifts about

The use of a flexible overlap with a notch in long pillars along the strike with a diagonal arrangement of the bottom makes it possible to reduce the volume of preparatory workings by a factor of 2-3 and reduce the cost price of a ton of coal by 1.5–2 times.

Claims (1)

Invention Formula Flexible overlap, including sections with a running compartment, made of bases and arches installed between them, connected along the ends in a row of cable ties and parallel to the main row, connected by means of ropes additional rows of sections, a metal grid installed over all rows Dami sections that have windows to accommodate excavation equipment and safety grids, about the fact that, in order to increase the safety of work during the development of powerful steep seams, the pillars in the diagonal bottom of the drilling and blasting method, the flexible overlap is equipped with an additional lattice overlap installed between the overlap sections and additional overlap with safety shelves interconnected by means of flexible ties, and with additional overlap - by means of rope FIG. 2 Fig.Z