SU783473A1

SU783473A1 - Mineral mining method

Info

Publication number: SU783473A1
Application number: SU782630755A
Authority: SU
Inventors: Всеволод Васильевич Журавлев; Олег Михайлович Кодолов; Владимир Ильич Симонов; Михаил Иванович Весков
Original assignee: Ордена Трудового Красного Знамени Институт Горного Дела Им. А.А. Скочинского
Priority date: 1978-06-19
Filing date: 1978-06-19
Publication date: 1980-11-30

Description

Изобретение относится к горной промышленности и может быть использовано при разработке мощных пластов полезных ископаемых, преимущественно угольных.The invention relates to the mining industry and can be used in the development of powerful strata of minerals, mainly coal.

Известен способ выемки полезного ископаемого при разработке мощных пластов длинными столбами, включающий выемку полезного ископаемого наклонными слоями в нисходящем порядке 11].A known method of extraction of minerals in the development of powerful strata with long columns, including the extraction of minerals in inclined layers in a descending order 11].

Известен также способ выемки полезного ископаемого при разработке мощных пластов длинными столбами, включающий выемку полезного ископаемого почвоуступным забоем с глубиной отбойки угля в верхнем слое забоя за один цикл равной глубине отбойки угля в верхнем слое забоя за один цикл в уступе и поддержание кровли в верхнем слое крепью с ограждением, отделяющим очистное пространство верхнего слоя от выработанного пространства [2]..There is also known a method of extracting minerals in the development of powerful strata with long columns, including the extraction of minerals with an open face with a depth of breakdown of coal in the upper layer of the face in one cycle equal to the depth of breakdown of coal in the upper layer of the face in one cycle in the ledge and supporting the roof in the upper layer of lining with a fence separating the treatment space of the upper layer from the worked-out space [2] ..

Однако оба указанных способа характеризуются недостаточной эффективностью и безопасностью выемки.However, both of these methods are characterized by insufficient efficiency and safety of the excavation.

Целью изобретения является повышение эффективности и безопасности выемки.The aim of the invention is to increase the efficiency and safety of the excavation.

Поставленная цель достигается тем, что после выемки угля в верхнем слое подают в выработанное пространство твердеющую закладку вприсечку к ограждению крепи и торцу уступа и после затвердения закладки производят выемку угля в уступе с одновременным распором вновь образуемого торца уступа с закладочным массивом.This goal is achieved by the fact that after coal mining in the upper layer, a hardening tab is inserted into the worked-out space in cross-section to the lining of the lining and the butt of the ledge, and after hardening of the tab, coal is excavated in the ledge with the simultaneous spread of the newly formed end of the ledge with the filling array.

На фиг. 1-3 представлены схемы последовательности выемки пласта.In FIG. 1-3 are diagrams of the sequence of excavation of the reservoir.

Способ заключается в следующем.The method is as follows.

Мощный пласт полезного ископаемого, преимущественно угля, отрабатывают длинными столбами по простиранию. Пласт отрабатывают почвоуступным забоем. Глубину отбойки угля в верхнем слое 1 забоя за один цикл принимают равной глубине угля за один цикл в уступе 2. Поддержание кровли в верхнем слое производят крепью 3 с ограждением 4, отделяющим очистное пространство 5 от выработанного пространства 6. После выемки угля в верхнем слое подают в выработанное простран3 ство твердеющую закладку 7 вприсечку к ограждению крепи и торцу 8 уступа и после затвердения закладки производят выемку угля в уступе с одновременным распором вновь образуемого торца 9 уступа с закладочным массивом. Распор осуществляют, например, пневмобаллонной крепью 10, Выемку угля в уступе производят выемочным механизмом 11.A powerful layer of minerals, mainly coal, is mined by long columns along strike. The layer is worked out by a slaughtering face. The depth of the coal breaking in the upper layer 1 of the face for one cycle is taken equal to the depth of coal for one cycle in the ledge 2. Maintenance of the roof in the upper layer is carried out with a support 3 with a guard 4 separating the treatment space 5 from the worked out space 6. After coal extraction in the upper layer, in the worked-out space, the hardening tab 7 is cut against the roof support and the end face 8 of the ledge, and after the hardening of the tab, coal is excavated in the ledge with the simultaneous spread of the newly formed end face 9 of the ledge with the backfill array. The spacer is carried out, for example, by a pneumatic balloon support 10, Coal mining in the ledge is carried out by a mining mechanism 11.

Способ позволит повысить эффективность и безопасность выемки мощных пластов.The method will improve the efficiency and safety of mining powerful formations.

Claims

The invention relates to the mining industry and can be used in the development of thick seams of minerals, mainly coal. There is a known method of excavating a mineral in the development of thick layers of long pillars, including the excavation of mineral in oblique layers in descending order 1. There is also known a method of excavation of a mineral in the development of thick seams with long pillars, including the excavation of minerals by soil-slaughtering with coal depth in the upper layer of the hole in one cycle of equal depth of coal in the upper layer of the slab in one cycle in the ledge and supporting the roof in the upper layer of the crepe. with a fence separating the cleaning space of the upper layer from the above-spaced space 2. However, both of these methods are characterized by insufficient effect and safety of the excavation. The aim of the invention is to increase the efficiency and safety of the excavation. The goal is achieved by the fact that after the coal is excavated in the upper layer, a solid hardening is inserted into the worked-out space to the fence of the support on the butt of the ledge and after hardening of the laying the coal is dredged in the ledge with the simultaneous thrust of the newly formed end of the ledge with the backing mass. FIG. 1-3 shows the sequence of excavation of the reservoir. The method is as follows. A powerful mineral layer, predominantly coal, is worked by the length of the pillars along the strike. The reservoir is worked out by the ground approach. The depth of coal blasting in the upper layer 1 is taken in one cycle equal to the depth of coal in one cycle in step 2. Maintaining the roof in the upper layer is made by lining 3 with fencing 4, the department cleansing space 5 from the worked out space 6. After dredging the coal in the upper The layer is fed to the developed space-hardening tab 7 in the accessory to the O1 façade lining and the yurtz 8 of the ledge, and after the ejecting of the laying, the cutting is done in the ledge with the simultaneous decomposable end of the 9 of the ledge with the filling Mi ccHBOM. The spreads are carried out, for example, by means of a peebalballoid fixture 10. The coal is excavated in yctyne by means of an excavation mechanism. The method will improve the efficiency and safety of excavation of thick seams. The invention is a method of minerals when working powerful seams with long pillars, including the excavation of minerals by soil-accessing slaughter with a é end of the Kii coal in the upper layer of the slab in one cycle equal to the coal depth in one cycle S ff 3 in the ledge and maintaining the roof the upper layer is lined with a fence separating the cleaning space of the upper layer from the excavated space, characterized in that, in order to increase the efficiency and safetyless excavation, after excavation, coal in the upper layer is fed into A solid hardening tab in the basement to the fence of the support and topuy of the ledge, and after hardening of the laying, coal is dredged in the ledge with simultaneous expansion of the newly formed ropvfi ledge with the filling mass:; Sources of information, taken into account in the examination 1. V. Nikitin and others. Development of flat and nakionnyh layers. M., 1976, p. 98-104.

2. USSR author's certificate number 65632, cl. E 21 C 41/04, 1941.

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