SU1580005A1

SU1580005A1 - Method of driving in mining thick flat coal seam

Info

Publication number: SU1580005A1
Application number: SU884371921A
Authority: SU
Inventors: Владимир Павлович Аладышев; Вячеслав Яковлевич Шахматов; Иван Николаевич Мазько; Константин Александрович Райс; Валерий Анатольевич Кокоша
Original assignee: Институт горного дела им.А.А.Скочинского; Производственное Объединение По Добыче Угля "Ленинскуголь"
Priority date: 1988-01-27
Filing date: 1988-01-27
Publication date: 1990-07-23

Abstract

Изобретение относитс к горной промышленности. Цель изобретени - снижение затрат на проведение и поддержание выработки (В), а также повышение безопасности работ. По мере проход очистного забо 1 кровлю над ранее пройденной B обрушают на краевую чатсь угольного массива 3 смежного столба. Затем провод т B13 почвоуступным забоем в присечку к ранее пройденной впереди очистного забо B. Верхний уступ 5 ведут в зоне установившегос горного давлени с опережением нижнего уступа 12 не менее, чем на величину зоны пылеподавлени . На подпочвенную толщу угл вслед за прохождением верхнего уступа 5 B со стороны обрушенных пород устанавливают органный р д стоек 8. По мере проведени нижнего уступа 12 у почвы пласта формируют угольный целик 14 высотой 1/4 - 2/3 мощности пласта. Проветривание нижнего уступа 12 и верхнего уступа 5 осуществл ют нагнетательным способом. 1 з.п. ф-лы, 2 ил.The invention relates to the mining industry. The purpose of the invention is to reduce the cost of carrying out and maintaining production (B), as well as improving the safety of work. As the passage of the clearing slab 1 of the roof above the previously passed B bring down on the marginal part of the coal massif 3 adjacent pillars. Then, B13 is carried out by soil-accessing slaughter in the notch to the clearing blade previously passed in front. Upper ledge 5 is conducted in the zone of established rock pressure with advance of the lower ledge 12 not less than by the size of the dust suppression zone. Following the passage of the upper ledge 5 B from the side of the collapsed rocks, an organ row of columns 8 is installed on the subsurface coal. As the lower ledge 12 is held near the reservoir soil, a coal pillar 14 of 1/4 - 2/3 height of the reservoir is formed. Airing of the lower step 12 and the upper step 5 is carried out by the injection method. 1 hp f-ly, 2 ill.

Description

А-АAa

ПP

1611 Ю 9 Фиг. 21611 S 9 FIG. 2

Claims

SUMMARY OF THE INVENTION 1. Method for conducting production while developing a powerful shallow coal seam, including conducting a bottom hole in the edge of the coal mass of an adjacent column into a notch to a previously passed mine following the movement of the bottom face in the zone of steady rock pressure, formation of a coal pillar near the bottom of the bed a height equal to part of its capacity, a roadheader, the installation of an organ row of racks after passing the bottom of the mine from the side of the collapsed rocks, the collapse of the roof over previously by running production and airing the bottom of the mine, characterized in that, in order to reduce the cost of conducting and maintaining the mine, roof collapse is carried out at the edge of the coal mass, and the bottom of the mine is carried out locally with the formation of a subsoil thickness of coal between the upper and lower ledges, while the organ the row is set on the subsoil thickness of coal during the upper ledge, and the rear pillar is formed with a height equal to 1/4 - 2/3 of the thickness of the formation, as the lower ledge is carried out.

2. The method according to claim 1, characterized by the fact that, in order to increase the safety of work, the upper ledge is carried out ahead of the lower

5 steps not less than the size of the dust suppression zone, / 3 16 11 10 9 14

Figure 2