SU1010274A1 - Inter-level ceiling for descending level-by-level excavation of ore bodies, with solidifying filling-up composition - Google Patents
Inter-level ceiling for descending level-by-level excavation of ore bodies, with solidifying filling-up composition Download PDFInfo
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- SU1010274A1 SU1010274A1 SU813258432A SU3258432A SU1010274A1 SU 1010274 A1 SU1010274 A1 SU 1010274A1 SU 813258432 A SU813258432 A SU 813258432A SU 3258432 A SU3258432 A SU 3258432A SU 1010274 A1 SU1010274 A1 SU 1010274A1
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Abstract
МЕЖСЛОЕБОЕ ПЕРЕКРЫТИЕ ДЛЯ НИСХОДЯЩЕЙ СЛОЕВОЙ ВЫЕМКИ РУДНЫХ ТЕЛ С ТВЕРДЕЮЩЕЙ ЗАКЛАДКОЙ, включающее несущий дугообразный элемент с основани ми, контактирукицими ей стенками выработанного пространства , отличающеес тем, что, с целью упрощени его монтажа, н сущий элемент выполнен из чередующихс между собой слоев металлической сетки и торкретбетона , а основани загнуты вдоль стенок выработанного пространст ва в твердеющей закладке. to 4INTERSHORE COVERAGE FOR DOWNLOAD LAYER EXTRACTING OF ORE BODIES WITH A HARD BACKGROUND, including a carrying arcuate element with bases, contacting the walls of the worked-out space, characterized in that, in order to simplify its installation, the overall element is made from the core of the core elements that are designed to simplify its installation, the overall element is designed by the core of the core elements that are designed to simplify its installation, the common element is designed by the core of the main parts, and it is designed as a result of the main components, which simplify its installation, the common element is designed by using the same components as the main parts of the spaced parts, in order to simplify its installation, the overall element is made from the core of the core parts, it will be designed by the general elements of the spaced parts, in order to simplify its installation, the overall element is made from the core of the core elements, it will be designed by the core of the main parts, the basic elements will be simplified by the main components, which simplify its installation, the common element is made from the core of the core elements, the main parts are the main parts of the spaced parts, different from the main parts of the open space, the main parts are the main parts of the space. , and the bases are curved along the walls of the developed space in a hardening tab. to 4
Description
Изобретение относитс к горной промышленности и может быть использовано при подземной разработке месторождений полезных ископаемых с закладкой выработанного пространства ,Известно межслоевое железобетонное перекрытие, выполненное в виде плоского несущего элемента, создаваемого на почве погашаемой вырабоки , причем торцы несущего элемента закреплены анкерами, установленным в стенках выработки и жестко св занными с продольными арматурными стержн ми и арматурной сеткой 1.The invention relates to the mining industry and can be used in underground mining of mineral deposits with laying the worked out space. Interlayer reinforced concrete overlap is known, made in the form of a flat bearing element created on the soil of the redeemable development, and the ends of the bearing element are fixed by anchors installed in the walls of the mine and rigidly connected with longitudinal reinforcing bars and reinforcing mesh 1.
Однако данна конструкци имеет недостаточно высокую несущую спосоность . Кроме того, заходка нижележащего сло при проходке проветриваетс вентил тором местного проветривани , что ухудшает услови труда забойных рабочих из-за нарастани вли ни производственновредных факторов по длине заходки, особенно при использовании самоходного оборудовани .However, this structure does not have a sufficiently high carrying capacity. In addition, the penetration of the underlying layer during penetration is aired by a local ventilation fan, which worsens the working conditions of downhole workers due to the increasing influence of production-hazardous factors along the length of the entry, especially when using self-propelled equipment.
Наиболее близким по технической сущности и достигаемому результату вл етс межслоевое перекрытие дл нисход щей слоевой выемки рудных тел с твердеющей закладкой, включающее несущий дугообразный элемент с основани ми, контактирующими со стенками выработанного пространства 2,The closest in technical essence and the achieved result is the interlayer overlap for the downward layer excavation of ore bodies with a hardening bookmark, including a supporting arcuate element with bases in contact with the walls of the worked-out space 2,
Недостатком известного перекрыт вл етс сложность монтажа,The disadvantage of the known overlapped is the complexity of the installation,
Целыг изобретени вл етс упрощение межслоевого перекрыти .The purpose of the invention is to simplify interlayer overlap.
Поставленна цель достигаетс |Тем, что в межслоевом перекрытии дл нисход щей слоевой выемки рудных тел с твердеющей закладкой, включающем несущий дугообразный элемент с основани ми, контактирующими .со стенками выработанного пространства, несущий элемент выполнен из чередующихс между собой слоев металлической сетки и торкребетона , а основани загнуты вдоль стенок выработанного пространства в твердеющей затладке.The goal is achieved by the fact that in the interlayer overlap for a downward layer excavation of ore bodies with a hardening bookmark, including a supporting arcuate element with bases contacting with the walls of the developed space, the supporting element is made of alternating layers of metal mesh and torcrebetone, The bases are bent along the walls of the worked-out space in a hardening grout.
На чертеже изображена предлагаема конструкци перекрыти в выработке.The drawing shows the proposed construction of the ceiling in the development.
Перекрытие состоит из сло 1 набрызг-бетона, армированного двум сло ми металлической сетки 2 (например , сетки плетеной 50x3),Перекрытие выполнено в виде арки 3, несущие основани 4 которой опираютс на стенки 5 выработки и контактируют с ними по высоте. Под аркой 3 расположена технологическа , полость 6, Над перекрытием расположена твердеюща закладка 7, Перекрытие монтируют с помощью опалубки 8,The overlap consists of a layer of sprayed concrete 1 reinforced with two layers of metal mesh 2 (for example, a 50x3 woven mesh). The overlap is in the form of an arch 3, the supporting bases 4 of which are supported on the walls 5 of the excavation and are in contact with them in height. Under the arch 3 there is a technological, cavity 6. Above the overlapping there is a hardening tab 7, the overlap is mounted using formwork 8,
Перекрытие работает следующим образом.The overlap works as follows.
На почву погашаемой выработки, имеющей ширину, например 3,5 м, устанавливают секцию металлической передвижной опалубки 8, на которую укладывают первый слой сетки 2 и с помощью торкрет-машины нанос т слой 1 быстротвердеющего набрызгбетона толщиной например 6-7 см. Затем укладывают второй слой металлической сетки 2 и нанос т слой набрызг-бетона 1 с доведением общей толщины до 0,15 м в замке и до 0,25 м в несущих основани х 4, Бетонирование перекрыти производ т секционно по мере затвердени сло 1, По окончании возведени перекрыти и достижении им расчетной прочности производ т заполнение выработки твердеющей закладкой 7, имеющей прочность пор дка 0,5 1 ,0 МПа,A section of metal movable formwork 8 is placed on the soil of a rechargeable production having a width of, for example, 3.5 m. The first layer of the grid 2 is placed on it and a layer 1 of rapid-setting concrete, for example, 6-7 cm thick, is applied with a gunning machine. Then the second metal mesh layer 2 and sprayed concrete layer 1 is applied, bringing the total thickness to 0.15 m in the castle and to 0.25 m in support bases 4. Concreting of the overlap is performed sectionally as the layer 1 solidifies. Upon completion of the construction of the overlap and reaching them the design strength is produced by filling the production with a hardening bookmark 7, having a strength of about 0.5-1.0 MPa,
Вертикальна нагрузка, обусловленна весом закладки 7, передаетс аркой 3, работающей на сжатие, через несущие основани 4 на стенки 5 выработки. Кроме того, закладка 7. прижимает контактирующие част несущих оснований 4 к стенкам 5, допэлнительно увеличива несущую способность перекрыти .The vertical load, due to the weight of the bookmark 7, is transmitted by the arch 3 working in compression through the supporting bases 4 to the walls 5 of the working. In addition, the tab 7. presses the contacting parts of the supporting bases 4 against the walls 5, additionally increasing the carrying capacity of the ceiling.
Применение предлагаемой конструкции позволит сократить затраты на монтаж перекрыти ,The application of the proposed design will reduce the cost of installation of overlap,
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813258432A SU1010274A1 (en) | 1981-01-07 | 1981-01-07 | Inter-level ceiling for descending level-by-level excavation of ore bodies, with solidifying filling-up composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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SU813258432A SU1010274A1 (en) | 1981-01-07 | 1981-01-07 | Inter-level ceiling for descending level-by-level excavation of ore bodies, with solidifying filling-up composition |
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SU1010274A1 true SU1010274A1 (en) | 1983-04-07 |
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SU813258432A SU1010274A1 (en) | 1981-01-07 | 1981-01-07 | Inter-level ceiling for descending level-by-level excavation of ore bodies, with solidifying filling-up composition |
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SU (1) | SU1010274A1 (en) |
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1981
- 1981-01-07 SU SU813258432A patent/SU1010274A1/en active
Non-Patent Citations (1)
Title |
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1. Выемка по падению под железобетонным пр рекрытиэм , ЭЙ, ,ГРП, № 10, 1977, реф.. 2. Авторское свидетельство СССР № 750072, кл. Е 21 С 41/06, 1978 (прототип). * |
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