SU964154A1

SU964154A1 - Method of sinking vertical mine working in unstable rock beds

Info

Publication number: SU964154A1
Application number: SU792766225A
Authority: SU
Inventors: Георгий Дмитриевич Бондаренко
Original assignee: Предприятие П/Я М-5703
Priority date: 1979-05-07
Filing date: 1979-05-07
Publication date: 1982-10-07

Description

Изобретение относится к горному ' делу и касается проходки вертикальных горных выработок в неустойчивых породах.The invention relates to mining, and relates to the sinking of vertical mine workings in unstable rocks.

Известен способ проходки горной выработки, включающий крепление за- ⁵бивной крепью и выдачу породы [1].Known tunneling excavation method comprising fastening za- ⁵ Bivni rock bolting and delivery [1].

Недостатком способа является большой расход необорачиваемого металла.The disadvantage of this method is the high consumption of non-turnaround metal.

Наиболее близким по технической сущности и достигаемому результату к предлагаемому является способ, включающий выемку породы и крепление (2).The closest in technical essence and the achieved result to the proposed is a method that includes the excavation of the rock and fastening (2).

Недостатком такого способа является необходимость применения искусст венного замораживания, что из-за удороживания, повышенной трудоемкости и увеличения сроков строительства снижает эффективность проходки.The disadvantage of this method is the need to use artificial freezing, which, due to the increase in cost, increased labor intensity, and increased construction time, reduces the efficiency of sinking.

Цель изобретения - повышение эф- 20 фективности проходки.The purpose of the invention is to increase the efficiency of sinking.

Поставленная цель достигается тем, что согласно способу проходки, включающему выемку породы и крепление после выемки слоя неустойчивой породы производят с сечением, превышающим сечение выработки, затем производят бетонирование образовавшейся полости, при этом бетон после набора им прочности в пределах сечения выработки извлекают.·This goal is achieved by the fact that according to the method of sinking, including excavation of the rock and fastening after excavation of a layer of unstable rock is produced with a cross section exceeding the cross section of the excavation, then the formed cavity is concreted, and concrete is recovered after building strength within the excavation cross section. ·

На фиг. 1-7 показана- последовательность проходки шахтного ствола; на фиг. 8 - ствол, общий вид.In FIG. 1-7 shows the sequence of penetration of the shaft shaft; in FIG. 8 - trunk, general view.

Проходку выработки, например ствола, производят следующим образом.The penetration of a mine, for example a trunk, is as follows.

Вскрывают слой 1 неустойчивых пород. При этом неустойчивая порода, например, плывун заполняет ствол на уровне 2. После этого в ствол подают жидкость (воду, глинистую суспензию и др.) до уровня з, достаточного для уравновешивания статического напора породы.Open layer 1 of unstable rocks. In this case, unstable rock, for example, a quicksand fills the trunk at level 2. After that, liquid (water, clay suspension, etc.) is fed into the trunk to a level h sufficient to balance the static pressure of the rock.

Далее производят разработку и выдачу породы под слоем пригрузочной жидкости. По достижении нижней границы 4 слоя неустойчивой породы в ствол подают бетон (цементный раствор) 5- После набора бетоном 5 необходимой прочности пригрузочную жидкость откачивают, его разрушают и выдают на поверхность в пределах сечения выработка.Next, the development and delivery of the rock is carried out under a layer of loading fluid. Upon reaching the lower boundary of the 4th layer of unstable rock, concrete (cement mortar) is fed into the barrel 5- After the concrete 5 has set the required strength, the loading fluid is pumped out, it is destroyed and the output is delivered to the surface within the cross-section.

Предлагаемый способ позволяет сни· зить капиталовложения и сроки строительства за счет исключения операций по искусственному замораживанию.The proposed method allows to reduce capital investment and construction time due to the exclusion of operations on artificial freezing.

Claims

FIELD OF THE INVENTION The invention relates to mining and relates to the sinking of mine workings in unstable rocks. There is a method of excavation of mine workings, including fastening driving support and issuance of rock t. The disadvantage of this method is the large consumption of unwrapped metal. The closest in technical essence and the achieved result to the proposed is a method including rock excavation and fastening. 21 The disadvantage of this method is the need to apply artificial freezing, which, due to the increased cost, increased labor intensity and an increase in construction time, reduces the efficiency of penetration. The purpose of the invention is to increase the efficiency of penetration. The goal is achieved by the method of penetration, which includes excavation of rocks and fixing after removing the layer of unstable rock produced with a cross section exceeding the output cross section, then concreting the cavity formed, and the concrete after gaining strength within the cross section of the excavation is removed. . 1-7 shows the sequence of penetration of the shaft; in fig. 8 - trunk, general view. The excavation of the production, for example, the shaft, is performed as follows. Open layer 1 unstable rocks. At the same time, the rock is unstable, for example, quicksand fills the barrel at level 2. After that, liquid (water, clay slurry, etc.) is supplied to the barrel to a level 3, which is sufficient to balance the static pressure of the rock. Further, the rock is developed and dispensed under a layer of delivery liquid. Upon reaching the lower boundary k of the unstable rock layer, concrete (cement mortar) 5- is supplied to the trunk 39. After the concrete 5 has gained the required strength, the loading liquid is pumped out, it is destroyed and delivered to the surface within the section of the development f. The proposed method makes it possible to reduce capital investment and construction time by eliminating artificial freeze operations. Claim method The method of penetrating a vertical mine workings in unstable 1 rock formations, including excavation and fastening, characterized in that, in order to increase the efficiency of penetration, the unstable rock layer is excavated with a cross section exceeding the open-air section, then the cavity is concreted , at the same time, the concrete, after gaining strength, within the section of production, is extracted. Sources of information taken into account in the examination 1. N. Trupak. Special methods of mining workings. M., Nedra, 1976, p. 15-33.

2. In the same place 190 (prototype).

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