SU732541A1

SU732541A1 - Method and device for consolidating mineral seam

Info

Publication number: SU732541A1
Application number: SU782678045A
Authority: SU
Inventors: Валентин Владимирович Пищулин; Анатолий Павлович Широков; Анатолий Михайлович Серый; Владимир Иванович Кунцевич
Original assignee: Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт
Priority date: 1978-10-23
Filing date: 1978-10-23
Publication date: 1980-05-05

Description

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Изобретение относитс к горнодобывающей промышленности, а и менно к способам креплени пласта полезного ископаемого посредством анкеров.The invention relates to the mining industry, as well as to methods for securing a mineral formation by means of anchors.

Известен способ креплени пласта угл при отжиме, включающий бурение шпуров, установку дерев нных анкеров с опорными элементами, выполненными в виде металлических винтовых зажимов, и последующее сн тие опорных элементов перед выемкой угл комбайном 1.There is a known method of fastening a coal seam during squeezing, which includes drilling holes, installing wooden anchors with supporting elements made in the form of metal screw clamps, and then removing the supporting elements before excavating the coal with combine 1.

Недостаток такого способа заключаетс в том, что при сн тии опорных элементов перед выемкой .угл (из-за наличи в них металлических частей) происход т вывалы угл .The disadvantage of this method lies in the fact that when removing the supporting elements before digging the corner (due to the presence of metal parts in them), coal falls out.

Дл осуществлени указанного способа также пригоден известный дерев нный анкер , включающий стержень с взаимно перпендикул рными продольными прорез ми на концах и вставленные в них дерев нные клинь 2.For carrying out this method, a well-known wooden anchor is also suitable, including a rod with mutually perpendicular longitudinal cuts at the ends and wooden wedges 2 inserted into them.

Такой анкер не имеет металлических частей , поэтому не требует сн ти опорных элементов перед выемкой угл комбайном, однако рассчитан только на одноразовое использование и, следовательно, им нельз закрепить больше одной полосы пласта.Such an anchor does not have metal parts; therefore, it does not require the removal of supporting elements before digging the coal with a combine; however, it is designed only for one-time use and, therefore, it cannot fix more than one strip of the formation.

Известен также другой способ креплени пласта полезного ископаемого, включающ}1Й бурение шпуров и установку в них анкеров 5 длиной больше ширины вынимаемой полосы в пласте, укорачивание анкеров при выемке полосы с закреплением конца оставшейс части анкера в устье шпура 3.There is also another method of fixing the mineral formation, including drilling drilling holes and installing anchors 5 in them longer than the width of the strip to be taken out in the reservoir, shortening the anchors when the strip is dredged, securing the end of the remaining part of the anchor to the hole of the hole 3.

Недостаток такого способа заключаетс в том, что он рассчитан на использование 10 составных анкеров, на разъединение и извлечение элементов которых требуетс много времени, а также в возникновении вывалов из раскрепленного перед выемкой пласта.The disadvantage of this method is that it is designed to use 10 composite anchors, for the separation and removal of elements of which takes a long time, as well as the occurrence of dumps from the stratified layer before excavation.

Цель изобретени - повышение производительности и безопасности труда.The purpose of the invention is to increase productivity and safety.

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Это достигаетс тем, что укорачивание анкеров производ т путем их среза при выемке полосы, а закрепление - расклиниванием .This is achieved by shortening the anchors by cutting them off while stripping the strip, and fixing it by wedging.

Такой способ может быть осуществлен This method can be implemented

Claims

20 with an anchoring device consisting of a rod with mutually perpendicular longitudinal slits at the ends and wedges inserted into the slits. The difference of the device, which makes it possible to carry out a new method, is that the rod is made with additional longitudinal slots located along its length with an interval equal to the width of the strip to be taken out. FIG. 1 shows an apparatus for carrying out the method; in fig. 2 is a diagram of the mineral formation. The device includes anchor lining, which consists of a rod 1 made of wood or other non-metallic material, locking slits 2 and 3 at the ends of the rod 1, additional longitudinal slits 4 and 5 and locking wedges (not shown) not, made from a rod material. The longitudinal slots are located along the length of the rod with an interval equal to the width of the strip to be removed in a single pass of the shearer. To increase the strength of the anchor, the adjacent longitudinal slots in the rod are mutually perpendicular. The fastening of the mineral reservoir is carried out as follows. In the reservoir of the mineral, there are drill holes, for example, 2 m deep, into which the anchors are inserted and then wedged. For this purpose, locking wedges are previously inserted in slots 2 and 3 of rod 1. If necessary, the chest is obstructed by planks, which are held by anchors. When coal is excavated, a portion of the anchors are cut together with a wedge lock by the amount of capture of the working body of the combine after its passage. Since the slots in the anchor rods are located with an interval equal to the width of the grab of a combine harvester, the remaining part of the anchor has a slot 4 or 5 at the end. Immediately after the combine passes, the end of the anchor in the schpa2 / ra mouth is wedged by driving a wedge into the corresponding slot that provides a reliable fastening of the reservoir. Claim 1. A method of securing a mineral reservoir, including drilling holes and installing anchors therein longer than the width of a removable strip in the reservoir, shortened anchors when withdrawing a strip with securing the end of the remaining part of the anchor to the hole of the hole, characterized in that, in order to improve performance and occupational safety, shortening the anchors is done by cutting them off at strip removal, and fixing by wedging. 2. A device for carrying out the method according to claim 1, comprising anchor bolt consisting of a rod with mutually perpendicular longitudinal slits at the ends of the wedges inserted into the slits, characterized in that additional longitudinal slits are made along the length of an interval equal to the width of the band to be removed. Sources of information taken into account during the examination 1. A. P. Shirokov and others. Reduction in accidents during the operation of the POCS complex in difficult conditions. Safety, labor and mine rescue. Ref. collection number 10 (112), M., 1976, p. 4-5.

2. Reference book of a mining engineer, T. 2, M., “Nedra, 1972, p. 628-629.

3. USSR author's certificate number 515098, cl. E 21 C 41/06, 1971 (prototype). four