SU623970A1

SU623970A1 - Method of pillarless developing of winning columns

Info

Publication number: SU623970A1
Application number: SU772477147A
Authority: SU
Inventors: Николай Алексеевич Федоров; Евгений Владимирович Игнатов; Валерий Евгеньевич Зайденварг
Original assignee: Кузбасский Политехнический Институт
Priority date: 1977-04-19
Filing date: 1977-04-19
Publication date: 1978-09-15

Description

Изобретение относитс к горной промышленности и может быть использовано дл подготовки выемочных столбов при разработке мощных пологих угольных пластвв .The invention relates to the mining industry and can be used to prepare excavation pillars in the development of high-power flat coal plasvv.

Известен способ подготовки выемочных столбов при разработке мощных пологих угольных пластов, включающий проведение выработок, оконтуривающих выемочные столбы с оставлением целиков угл между выемочными столбами ||lj. Однако данный способ характеризуетс значительными потер ми угл , а также больщим объемом проведени подготовительных вырабо ток..There is a method of preparation of excavation pillars in the development of powerful flat coal seams, including the conduct of workings, delineating the excavation pillars, leaving the pillars between the coal extraction pillars || lj. However, this method is characterized by a significant loss of coal, as well as a large amount of preparatory development.

Известен также способ бесцеликовой подготовки выемочных столбов при разработке мощных пологих угольных пластов, включающий использование выработки, пройденной у почвы пласта и закрепленной рамной крепью с зат жкой, отрабатываемого выемочного столба дл отработки смежного выемочного столба 2j. Однако при применении указанного способа требуютс значительные затраты на поддержание выработок и на сохранение несущей способности крепи дл отработки смежного сло .-There is also known a method of targetless preparation of excavation pillars in the development of powerful flat coal seams, including the use of excavation, passed at the soil of the reservoir and fixed with a frame fixture with a puff, worked out extraction column for testing the adjacent excavation column 2j. However, when using this method, significant costs are required to maintain the workings and to preserve the bearing capacity of the lining for working the adjacent layer.

Целью изобретени вл етс сохранение несущей способности крепи выработки дл отработки смежного выемочного столба .The aim of the invention is to preserve the bearing capacity of the support for the development of the adjacent extraction column.

Цель достигаетс тем, что при выемке отрабатываемого столба вслед за проходом очистного забо последнего в указанной выработке извлекают зат жку и обрущают между рамами крепи угольный tvtaccHB над выработкой, полностью заполн все сечение последней обрущенным уг лем, и после затухани сдвижени горных пород над выработкой извлекают обрушенный уголь из нее и устанавливают зат жку между рамами крепи.The goal is achieved by the following: when excavating the column being worked, after the passage of the refining slab of the latter, the pulling is removed in the specified excavation and the coal tvtaccHB over the excavation is removed between the frames, the entire collapsed coal is completely filled over the entire excavation, and after the shear of the rocks above the excavation, the collapsed coal from it and set the stopper between the support frames.

На чертеже представлена схема подготовки выемочных столбов, реализующа предлагаемый способ.The drawing shows the preparation of excavation pillars, which implements the proposed method.

Claims

Extraction pillars 1 are worked without; pillars with the use of production of 2 worked pillars by lava 3 for mining the adjacent excavation pillar by lava 4. The said excavation is crossframe with a brace and tightening. Following the passage of the clearing slab of the working column in the said excavation, pulling is removed and the lining of the coal mass over the excavation between the frames, completely filling the entire section of the last crushed coal 5. lining, using the restored production for mining the adjacent pillar. In excavation 2 before the collapse of the coal, a ventilation pipe 6 can be placed, which is dismantled when the excavation is restored. Claims method of peakless preparation of digging pillars in the development of powerful flat coal seams, including the use of excavation, traversed near the reservoir soil and fixed with a frame fixture with a puff, worked out an extraction column for working out an adjacent excavation column, different in that the way of working out support for working out the adjacent excavation column, during the excavation of the worked pole, following the passage of the clearing slab of the latter, in the specified excavation is extracted buckle and collapses between frames lining coal array generation of completely filling the entire cross section of the last coal caving and after the extinction of displacement of rock above the caved coal generation is recovered from it and is set between frames puff lining. Sources of information taken into account in the examination; 1.Type development systems with the start of a sewage treatment by falling (uprising) in the conditions of the Karaganda basin. Karaganda, 1972, p. 58-64.

2. Lebedev B. K. and others. The experience of podgovtovi ki and mining mining fields without leaving the interlock coal pillars in the mines of Kuzbass. COAL, 1973, p. 5-9.

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