SU777232A1 - Pneumatic shell roof support - Google Patents

Description

For the development of powerful power lines, the pneumocosters are located "hell slaughter and one of the parallel races.

The compressed air is fed and discharged through a shut-off valve 5 and high-speed sleeves 6 supplied for each section 1 and.

On the torsion pipe and on and between the adjacent rows of the section, the working threads of the ropes 7 are laid, to which the auxiliary, and the cables are attached a flexible overlap 5 and sections that have handles 9.

To prevent the collapsed rocks from getting under the lining, aprons 10 are attached to the end ropes.

The size of the support according to the thickness of the reservoir is regulated by the change in air pressure in the sections or by switching on and off individual sections. In the event of any pneumatic enclosure breaking down, the running compartment is supported by the remaining pneumatic enclosures.

Sections / odin | yayutsya side surfaces of the m-and on the bottom //. The excavation of the IB coal is carried out by means of drilling and blasting operations. Through the windows 4. A row of the leading ditch 12 is removed by a section of the section.

As the pillars are excavated under the sections, the lining moves to the face under the pressure of the crushed rocks.

In a switchboard development system, the coal-fired furnaces pass into ditch 12.

The sections / are located under the flexible overlap 2 in a row along the diagonal bottom from the vent 15 to the retractable 14. With a thick formation, the sections 111 are poured in several rows between the enclosing cities of the formation. For the movement of people in the running compartment, a ladder 15 is flexible.

The support works as follows.

The coal in the bottom is removed by drilling and blasting through the windows 4. To move the coal, the ditch 12 is removed with advance along the entire length of the bo. After excavation of the pillars under the sections under the action of the collapsed rocks, the lining moves both along the dip and along the strike of the formation. Since the lining is mainly displaced in the fall, at the same time as the recess, lining is being installed on the fan clamp. At the haulage gateway, under the protection of a flexible overlap 2, sections are dismounted / subsequently used.

The roof is controlled by the hollow caving.

In the case of a combined 1c: system with a flexible overlap on the soil of the mounting layer, sections are installed under a flexible overlap 2 in a row: seam and parallel: and in a rhythm along strike. At the level of the ventilation layer, the lining is brought out through the transverse layer to the formation soil.

Works are carried out as follows.

In the preparatory block, the lower layer is removed by drilling and blasting from the cover of the flexible fastener through the windows 4. The coal is removed by the inclined layers in the direction from the roof to the soil of the formation. In order to bypass the coal that is fired (at the bottom of the reservoir dip between adjacent rows of pneumatic gouges, the ditches are removed and maintained. 12. Under the effect of the broken rocks, the lining moves into the strike cross and the dip of the stratum. , and after the approach, fix to the recumbent side under all flexible pereftytiy.,

Roof management can be done with a complete collapse or with the laying of a bookmark on the edge of the ventilation drift.

Claims (2)

1. Angarsky V.V. Metallichesk and reinforced concrete lining of Kuzbass. M., “Pedra, 1964, p. 79-80. 2. USSR author's certificate in application number 2675805/03, cl. E 21 D 23/00, 1978 (prototype). 0g f / J b- s atZSZSZS7V / sZ: AZ JSZSZV / 4, WITH