SU1481402A1 - Method of winning coal at stepped-roof face - Google Patents
Method of winning coal at stepped-roof face Download PDFInfo
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- SU1481402A1 SU1481402A1 SU874249312A SU4249312A SU1481402A1 SU 1481402 A1 SU1481402 A1 SU 1481402A1 SU 874249312 A SU874249312 A SU 874249312A SU 4249312 A SU4249312 A SU 4249312A SU 1481402 A1 SU1481402 A1 SU 1481402A1
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- SU
- USSR - Soviet Union
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- coal
- ledge
- excavation
- extraction
- mass
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Abstract
Изобретение относитс к угольной промышленности и предназначено дл разработки тонких крутых угольных пластов, опасных по газодинамическим влени м, потолкоустойчивым забо м. Цель изобретени - повышение безопасности очистных работ за счет увеличени отжима угл и газоотдачи угольного массива в уступе. Выемку угл в уступе ведут диагональными участками (У) снизу вверх. Отбойку угл на каждом У осуществл ют сверху вниз с постепенным заглублением в угольный массив до ширины вынимаемой полосы у основани У. Затем в той же последовательности уступу придают пр молинейную форму. По мере выемки угл на У возвод т призабойную крепь из переносимых металлических стоек. Отбитый уголь транспортируетс самотеком по ограждению. 2 ил.The invention relates to the coal industry and is designed to develop thin, steep coal seams that are hazardous by gas-dynamic phenomena and ceiling-resistant faces. The purpose of the invention is to improve the safety of cleaning operations by increasing the extraction of coal and the gas output of the coal mass in the ledge. Excavation of coal in the ledge are diagonal sections (Y) from the bottom up. The cutting of coal on each Y is carried out from top to bottom with a gradual penetration into the coal massif to the width of the strip to be removed at the base of U. Then, in the same sequence, the ledge is given a linear shape. As the coal was removed, the bottomhole support was erected from portable metal struts. Repulsed coal is transported by gravity over the fence. 2 Il.
Description
1one
Изобретение относитс к угольной промышленности и предназначено дл разработки тонких крутых угольных пластов, опасных по газодинамическим влени м, потолкоуступным забоем.The invention relates to the coal industry and is intended for the development of thin, steep coal seams, hazardous by gas-dynamic phenomena, with a ceiling slab.
Цель изобретени - повышение безопасности очистных работ за счет уве« личени отжима угл и газоотдачи угольного массива в уступе.The purpose of the invention is to improve the safety of cleaning works by increasing the extraction of coal and gas recovery of the coal mass in the ledge.
На фиг.1 представлена схема отбойки угл в пр молинейном уступе; на фиг.2 - то же, в уступе со спасательной нишей.Fig. 1 shows a coal breakdown scheme in a straight ledge; figure 2 - the same, in the ledge with the rescue niche.
Способ осуществл етс следующим образом.The method is carried out as follows.
Отбойку угл в каждом уступе начинают с нижней части вынимаемой полосы вырубкой диагонального участка 1. Выемку угл на участке ведут сверху вниз с постепенным заглублением вThe cutting of coal in each ledge begins from the bottom of the strip to be taken out by cutting diagonal section 1. The coal is excavated in the section from the top downwards with a gradual deepening in
массив по мере продвижени по падению до ширины вынимаемой полосы у основани участка на линии сопр жени уступов. При этом формируют диагонально-навнсагаций забой по линии 2, вл ющейс продолжением р да крепи 3. Крепление вынимаемого участка осуществл ют после выемки заход- си по падению на величину комплекта крепи (обычно 0,2). Такие onepaipm по выемке угл и креплению осуществл ют на вышележащих диагональных участках II и III. После чего приступают к формированию пр молинейного забо . При этом выемку угл в уступе на участках IY - YI ведут в той же последовательности. По мере выемки угл на этих участках возвод т при- забойную крепь из переносных металлических стоек 4, гидравлических или1the array as it progresses along the dip to the width of the strip to be removed at the base of the section on the junction line of the ledges. In this case, diagonally-downhole formations are made along the line 2, which is a continuation of a number of supports 3. The attachment of the section to be removed is carried out after withdrawal by dropping by a drop by the amount of the set of supports (usually 0.2). Such onepaipm for coal extraction and fastening are carried out on the overlying diagonal sections II and III. Then proceed to the formation of a linear slab. At the same time, excavation of coal in the ledge in areas IY - YI is carried out in the same sequence. As coal is excavated, in these areas, the bottom bolt is erected from portable metal struts 4, hydraulic or 1
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клиновых. Отбитый уголь транспортируетс самотеком по ограждению 5.wedge. Repulsed coal is transported by gravity over the fence 5.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874249312A SU1481402A1 (en) | 1987-05-25 | 1987-05-25 | Method of winning coal at stepped-roof face |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874249312A SU1481402A1 (en) | 1987-05-25 | 1987-05-25 | Method of winning coal at stepped-roof face |
Publications (1)
Publication Number | Publication Date |
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SU1481402A1 true SU1481402A1 (en) | 1989-05-23 |
Family
ID=21305962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874249312A SU1481402A1 (en) | 1987-05-25 | 1987-05-25 | Method of winning coal at stepped-roof face |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1481402A1 (en) |
-
1987
- 1987-05-25 SU SU874249312A patent/SU1481402A1/en active
Non-Patent Citations (1)
Title |
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Сонин С.Д. и др. Подземна разработка пластовых месторождений - М.: Госгортехиздат, 1961, с.286-287. * |
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