SU1177485A1 - Method of mining thick coal beds - Google Patents
Method of mining thick coal beds Download PDFInfo
- Publication number
- SU1177485A1 SU1177485A1 SU843726377A SU3726377A SU1177485A1 SU 1177485 A1 SU1177485 A1 SU 1177485A1 SU 843726377 A SU843726377 A SU 843726377A SU 3726377 A SU3726377 A SU 3726377A SU 1177485 A1 SU1177485 A1 SU 1177485A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- pillars
- coal
- thick coal
- coal beds
- mining thick
- Prior art date
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
Изобретение относится к горной промышленности и предназначено для разработки мощных угольных пластов.The invention relates to the mining industry and is intended for the development of thick coal seams.
Цель изоб[ветения — снижение вредного влияния осадок кровли и уменьшение потерь угля.The goal of the plant is to reduce the harmful effects of roof sludge and reduce coal losses.
Способ осуществляется следующим образом.The method is as follows.
При отработке верхнего слоя пласта по мере движения выемочной машины настилают ленту гибкого перекрытия с укладкой на него ряда пневмобаллонной крепи параллельно линии очистного забоя. Затем по мере дальнейшей выемки формируют угольные целики или навалы, после чего настилают гибкое перекрытие, сшивают с ранее уложенной лентой гибкого перекрытия и укладывают второй ряд пневмобаллонной крепи. Расстояние между рядами крепи принимают не более половины шага посадки непосредственной кровли. После отработки верхнего слоя кровлю пласта разделяют на блоки параллельно линии очистного забоя.When working out the upper layer of the reservoir as the excavation machine moves, a ribbon of flexible overlapping is laid with a series of pneumatic support lining it parallel to the clearing face. Then, as further excavations are made, coal pillars or piles are formed, after which they lay a flexible overlap, sew with a previously laid tape of flexible overlap, and stack a second row of pneumatic support. The distance between the rows of lining take no more than half the step of landing the immediate roof. After testing the top layer of the roof of the reservoir is divided into blocks parallel to the line of the working face.
Формирование блоков производят следующим образом. Параллельно линии очистного забоя бурят скважины, расстояние между рядами которых соответствует шагу посадки кровли. Длину скважин принимают равной 1, 2 мощности извлекаемогоThe formation of blocks produced as follows. In parallel, the face of the longwall bore holes, the distance between the rows of which corresponds to the step of landing the roof. The length of the wells is equal to 1, 2 of the power extracted
слоя пласта. Затем специальным инструментом, закрепленным на штанге станка,reservoir layer. Then a special tool mounted on the bar of the machine,
5 на конце скважины прорезают щели, герметизируют скважину и производят нагнетание жидкости в режиме гидроразрыва. Разделенную таким образом кровлю последовательно опускают на сформированные угольные целики или навалы посредством 10 уменьшения давления рабочего тела в рядах пневмобаллонной крепи. После этого крепь извлекают для повторного использования. 5 at the end of the well cut through the gap, seal the well and produce the injection of fluid in the mode of hydraulic fracturing. The roof thus divided is successively lowered onto the formed coal pillars or piles by reducing the pressure of the working fluid in the rows of pneumatic support 10 times. After that, the support is removed for reuse.
Угольные целики формируют исполнительным органом комбайна, оставляя на почве слоя выступ треугольного сечения. Эти целики в дальнейшем разрушаются за счет пригрузки вышележащей толщи обрушаемых пород. Угольные навалы формируют за счет укладки отбитого угля с по20 мощью исполнительного органа комбайна. Затем при отработке нижнего слоя размещение рядов пневмобаллонной крепи и формирование угольных целиков или навалов производят в шахматном порядке для обес25 печения полноты извлечения угля из оставляемых целиков треугольного сечения.The coal pillars form the executive body of the combine, leaving a triangular protrusion on the soil of the layer. These pillars are further destroyed by the overburden of the overlying crust. Coal piles are formed by stacking repulsed coal with the power of the executive body of the combine. Then, during the development of the lower layer, the placement of rows of pneumatic support and formation of coal pillars or piles is carried out in a checkerboard pattern to ensure complete extraction of coal from the left pillars of a triangular cross section.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843726377A SU1177485A1 (en) | 1984-04-11 | 1984-04-11 | Method of mining thick coal beds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843726377A SU1177485A1 (en) | 1984-04-11 | 1984-04-11 | Method of mining thick coal beds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1177485A1 true SU1177485A1 (en) | 1985-09-07 |
Family
ID=21113499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843726377A SU1177485A1 (en) | 1984-04-11 | 1984-04-11 | Method of mining thick coal beds |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1177485A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150497A (en) * | 2016-08-30 | 2016-11-23 | 西安煤矿机械有限公司 | A kind of medium-thickness seam flitting teaching playback automatic cutting control method |
| WO2021093122A1 (en) * | 2019-11-15 | 2021-05-20 | 山东科技大学 | Method for reducing withdrawal roadway roof pressure at end of coal face mining |
| RU2799293C1 (en) * | 2023-04-04 | 2023-07-04 | Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр угля и углехимии Сибирского отделения Российской академии наук" | Method for developing a thick seam with tough coal and difficult roofing rocks |
-
1984
- 1984-04-11 SU SU843726377A patent/SU1177485A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150497A (en) * | 2016-08-30 | 2016-11-23 | 西安煤矿机械有限公司 | A kind of medium-thickness seam flitting teaching playback automatic cutting control method |
| WO2021093122A1 (en) * | 2019-11-15 | 2021-05-20 | 山东科技大学 | Method for reducing withdrawal roadway roof pressure at end of coal face mining |
| RU2799293C1 (en) * | 2023-04-04 | 2023-07-04 | Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр угля и углехимии Сибирского отделения Российской академии наук" | Method for developing a thick seam with tough coal and difficult roofing rocks |
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