SU798300A1

SU798300A1 - Method of open-cast mineral mining

Info

Publication number: SU798300A1
Application number: SU742048521A
Authority: SU
Inventors: Сергей Эдуардович Мининг; Анатолий Константинович Мясоедов; Александр Николаевич Елин; Геннадий Михайлович Редькин
Priority date: 1974-07-31
Filing date: 1974-07-31
Publication date: 1981-01-23

Description

Изобретение относится к горному делу и может быть использовано при \ открытой разработке месторождений полезных ископаемых.The invention relates to mining and can be used in the \ open development of mineral deposits.

Известен способ открытой разработки месторождений полезных ископаемых, включающий «тработку массива горных пород уступами, погрузку отбитой горной массы и последующее ее транспортирование £ 1 J.There is a method of open mining of mineral deposits, including "processing rock masses with ledges, loading broken rock mass and its subsequent transportation £ 1 J.

Известен также способ открытой разработки месторождений полезных ископаемых, включающий отработку массива горных пород наклонными уступами, погрузку отбитой горной массы и ее , транспортирование по рабочим площадкам уступов £2^.'There is also a known method of open-pit mining of mineral deposits, including the development of an array of rocks with inclined ledges, loading the broken rock mass and it, transportation along the working platforms of the benches £ 2 ^. '

Однако оба указанных способа характеризуются значительными потерями и разубоживанием полезного ископаемо- ₂го.However, both of these methods are characterized by significant losses and dilution _{of the} 2nd mineral.

Цель изобретения - уменьшение потерь и разубоживания полезного ископаемого.The purpose of the invention is the reduction of losses and dilution of the mineral.

Поставленная цель достигается тем, что фронт работ ведут перпендикулярно линиям пересечения наклонных рабочих площадок уступа с поверхностью „ контакта полезного ископаемого с вмещающими породами.The goal is achieved in that the front of the work is perpendicular to the intersection lines of the inclined working platforms of the ledge with the contact surface of the mineral with the host rocks.

На фиг.1 изображена схема расположения разрезных траншей; на фиг.2 -схема участка месторождения, отрабатываемого уступами с наклонными рабочим} площадками; на фиг.З - разрез А-А на фиг.2; на фиг.4 -’общий вид отработки участка.Figure 1 shows the layout of split trenches; figure 2 is a diagram of the plot of the field, worked out by ledges with inclined working} platforms; in Fig.Z - section aa in Fig.2; figure 4 is a General view of the mining site.

Способ заключается в следующем·. ‘ С дневной поверхности 1 проходят разрезные траншеи 2-9, расположенные в пределах будущих уступов 10 с наклонными рабочими площадками 11. На каждом уступе могут проводить одну траншею, например 2,8,9, несколько траншей 3,4 одновременно или несколько траншей' 5,6,7 со сдвигом во времени. Траншеи в уступах располагают преимущественно в одну линию, нал798300 · \ равленную под определенным углом к простиранию 12 контакта 13 полезного ископаемого · 14 с вмещающими породами 15. Разрезные траншеи 7 проводят таким· образом, чтобы подошва 16 этой траншеи находилась в плоскости нижней рабочей площадки будущего уступа. Затем борта 17 разрезных траншей разносят. При этом бурят и взрывают скважины 18 и осуществляют погрузку и транспортирование горной массы 19. Бурение скважин производят станками 20, а погрузку горной массы осуществляют экскаваторами 21. Транспортирование горной массы производят автосамосвалами '22. В случае необходимости уступы 10 при подходе к контакту 13 могут быть разбиты на подуступы 23, С целью сокращения потерь полезного ископаемого 24 и снижения разубоживания полезного ископаемого 25 фронт работ уступа располагают перпендикулярно линиям пересечения наклонных рабочих площадок уступа с поверхностью контакта полезного ископаемого с вмещающими породами.The method is as follows. 'Cutting trenches 2–9 located within the future benches 10 with inclined working platforms 11 pass from the day surface 1, they can carry out one trench, for example, 2.8.9, several 3.4 trenches at the same time or several trenches' 5 , 6.7 with a shift in time. The trenches in the ledges are arranged predominantly in one line, til 798300 ledge. Then the sides of the 17 cutting trenches are carried. In this case, wells 18 are drilled and blown up and loading and transportation of rock mass 19. Drilling of wells is carried out by machine tools 20, and loading of rock mass is carried out by excavators 21. Transportation of rock mass is carried out by dump trucks '22. If necessary, steps 10 when approaching contact 13 can be divided into steps 23, In order to reduce mineral losses 24 and reduce dilution of mineral 25, the front of the work of the ledge is perpendicular to the lines of intersection of the inclined working platforms of the ledge with the contact surface of the mineral with the surrounding rocks.

Данный способ позволит уменьшить потери и разубоживание полезного ископаемого.This method will reduce the loss and dilution of the mineral.

Claims

The invention relates to mining and can be used in opencast mining of mineral deposits. There is a method of open mining of mineral deposits, including “working the rock mass with ledges, loading broken rock and its subsequent transportation 1. There is also a method of open mining mineral deposits, mining the rock of the mountain rocks with inclined ledges, loading the broken mountain mass and its transportation over the work platforms of the ledges 2. However, both of these methods are characterized by significant losses and dilution of the mineral. The purpose of the invention is to reduce losses and dilution of the mineral. The goal is achieved by the fact that the front of the work is perpendicular to the line of intersection of the inclined working areas of the ledge with the surface of the contact of the mineral with enclosing rocks. Figure 1 shows the layout of the split trenches; Fig. 2 is a diagram of a portion of a field being worked off with ledges with inclined working areas; on fig.Z - section aa in figure 2; figure 4 - General view of the mining site. The method is as follows; Split trenches 2–9 are located on the day surface I, located within the future ledges 10 with inclined working areas II. On each ledge can spend one trench, for example 2,8,9, several trenches 3,4 at the same time or several trashpey 5,6,7 with a shift in time. The trenches in the ledges are located predominantly in one line, directed at a certain angle to the strike 12 of the contact 13 of the mineral U with host rocks 15. The split trenches 7 are arranged in such a way that the bottom 16 of this trench lies in the plane of the lower working platform of the future ledge. Then the flanges 17 of the split trenches are expanded. At the same time, the wells 18 are drilled and blown up and the rock mass is loaded and transported 19. The wells are drilled by machines 20, and the rock mass is loaded by excavators 21. The rock mass is transported by trucks. 22. If necessary, the steps of aO at the approach to contact 13 can be divided into sub-approaches 23. In order to reduce mineral losses 24 and reduce the dilution of the mineral 25, the front of the work of the ledge has a perpendicular line m worksites intersection inclined ledge with the contact surface of a fossil useful vmeschayupdami rocks. 04 This method will reduce the loss and dilution of a useful claim. Formula of the invention. Method of open cast mining of minerals, including mining of rock mass with inclined ledges, loading of broken rock mass and its transportation over work platforms of ledges, characterized in that, in order to reduce losses and dilute the mineral, the front of the works are perpendicular. The intersection of the inclined working sites of the step with the surface of the mineral’s contact with host rocks. Sources of information taken into account during the examination 1. Melnikov N, B. and other systems of open development, M., Gosgortehizdat, 1961, p. 146.

2. / Bannikov S.A. The development of a suite of sloping and gently sloping seams with inclined ledges is open. - Design and construction of coal enterprises M., 1962, 10, p.18-30.

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