RU2685587C1 - Method for open development of steeply-dipping deposits with application of combined temporary non-working sides - Google Patents

Method for open development of steeply-dipping deposits with application of combined temporary non-working sides Download PDF

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RU2685587C1
RU2685587C1 RU2018134735A RU2018134735A RU2685587C1 RU 2685587 C1 RU2685587 C1 RU 2685587C1 RU 2018134735 A RU2018134735 A RU 2018134735A RU 2018134735 A RU2018134735 A RU 2018134735A RU 2685587 C1 RU2685587 C1 RU 2685587C1
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steeply
working
development
mining
stage
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RU2018134735A
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Russian (ru)
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Георгий Григорьевич Саканцев
Татьяна Максимовна Переход
Алексей Викторович Яковлев
Виктор Леонтьевич Яковлев
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Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН)
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/26Methods of surface mining; Layouts therefor

Abstract

FIELD: mining.
SUBSTANCE: invention relates to mining industry, namely to stage-by-stage development of mineral deposits, and can be used at formation of temporary non-working boards and their subsequent reversion. In method of open development of steeply falling deposits in process of development of open-pit space its working side from side of lying side of deposit at approach to final contour of open-pit is converted into limit board and on it opening works are arranged, which serve for cargo communication of working horizons of pit with surface. On the side of the hanging wall of the deposit, simultaneously with the development of mining operations, a multistage combined temporarily idle board is formed, consisting of one-on-one steeply inclined steps, on which mine opening is arranged, and in their bases stone pads are arranged to place stones falling on them during subsequent re-opening of steeply inclined steps. Cruton-clay steps are made with a width that makes it possible to place on them a rock mass falling from above, rock-protective embankments with hydraulic excavators of the "reverse spade" type installed on them and access roads for supplying vehicles for loading of the rock mass. Truncation and development of steeply inclined steps are performed successively from top to bottom with horizontal layers using hydraulic backhoe excavators. At the same time re-opening of upper steeply inclined steps is combined in time with formation of lower steeply inclined stage, which is carried out simultaneously with development of adjoining volumes of minerals. Unfolding and development of lower steeply inclined stage without reduction of quarry productivity on mineral resources is provided by reserving of mineral in quarrying area.
EFFECT: technical result consists in reduction of current overburden ratio during initial development of deposit.
1 cl, 2 dwg

Description

The invention relates to the mining industry, namely to the phased development of mineral deposits and can be used in the formation of temporarily non-working boards and their subsequent re-preservation.
There is a method of forming and testing of temporarily non-working boards during the phased development of deposits. The essence of the method lies in the temporary conservation of individual ledges, in which the board is temporarily inoperative. Preservation is carried out at an angle close to the redemption angle of the margin of the pit. When the temporarily non-working side reaches the rated height, the spacing of its upper horizons begins, while the height of the temporarily non-working side continues to increase due to the continuing dredging of the quarry. Thus, the site temporarily non-working board "slides" along the contour of the stage. Similarly, the sections of the temporarily non-working side formed on the contour of the subsequent stages of development are tested. The economic efficiency of the method is achieved by reducing the current stripping ratio by increasing the resulting slope angle of the working side. In this case, the efficiency increases with an increase in the angle of inclination of temporarily non-working boards. At large quarries, the volume of mothballed stripping can reach several tens of millions of cubic meters with a conservation period of ten or more years (Khokhryakov VS Open field development in stages, Iz. Universities, Mining Journal No. 10, pp. 15-26, 1965 ).
The disadvantage of this method is that the spacing of the upper horizons of the temporarily non-working side is accompanied by the release of rock mass during blasting operations. As a result, with a sufficiently steep angle of the slope of the temporarily non-working side, the entire side can be completely covered with the blasted rock mass. This eliminates the possibility of placing on the sections of the temporarily non-working side of the revealing workings and does not provide conditions for safe mining when lowering the working horizons of the open-pit mine into the temporary non-working position.
The closest analogue of the claimed invention is described in the patent for the invention of the Russian Federation No. 2064582 method of opencast mining, including the formation in the working area of the quarry ledges temporarily non-working side, the spacing of the upper horizons of the temporarily non-working side with its formation by temporarily non-working position located below working horizons, on the horizons of the temporarily non-working side pour protective ramparts to catch rockfall through the Internet heaps in height equal to the height of the temporarily non-working board sections, and in the permanent or temporary non-working board of the quarry, transport berms are arranged on the horizons of the barrier walls, from which congresses to the lower working horizons take place within an interval in depth equal to the height of the temporarily non-working board side.
The disadvantage of this method is the need to flatten temporarily non-working side for the device of transport berms and platforms, sites with barrier shafts and interruption of freight transport communication between areas of temporary non-working side when it is deconditioned, and the device of the barrier shafts does not provide safety of work during deconservation of pillars and work on working horizons due to the scattering of stones. Interrupting the freight transport link between the sections in depth during the re-entry of the side leads to the need to build additional congresses on the working board and to flatten it. At the same time, solving the problem of opening due to removal of the opening workings to the adjacent part of the working area with normal work sites and construction of connecting transport sites leads to additional costs for the development of the field and to an increase in the current coefficients of overburden.
The aim of the present invention is to reduce the current stripping ratio in the initial period of development of deep-lying steeply dipping deposits of rounded or elongated shape due to the temporary preservation of the sides and the technologically determined priority of mining the quarry space.
This goal is achieved by the fact that in the method of opencast development of steeply dipping deposits with the use of combined temporary non-working boards, including the formation of the working area of the quarry, the development of overburden rocks and the provision of cargo transport communication of the working horizons of the quarry with the surface according to the invention when approaching the final contour of the open pit, the sides of the field are transformed into the marginal board and the opening workings are placed on it and employees of the working horizons of the quarry with the surface for cargo transportation, and from the side of the hanging side of the field, simultaneously with the development of mining, they begin to form a multi-stage combined temporary non-working board consisting of steeply inclined steps placed one on top of the other, on which the opening workings are placed arrange stone-protective platforms for placing on them stones falling from above during the subsequent re-activation of steeply inclined steps, with steeply inclined steps They do not have a width that provides the possibility of placing on them a rock mass falling from above blasted, stone protection embankments with hydraulic backhoe type excavators mounted on them and access roads for supplying vehicles for loading rock mass, depreservation and mining of steeply inclined steps are successively horizontal from top to bottom layers with the use of hydraulic excavators of the type “reverse shovel”, while the re-activation of the upper steeply inclined steps is combined at the time The formation of the lower steeply inclined stage, which is carried out simultaneously with the mining of the mineral resources adjacent to it, and the possibility of depreservation and testing of the lower steeply inclined stage without reducing the mine's productivity with respect to the mineral in the mining zone of the open-pit.
The method of opencast development of steeply dipping deposits with the use of combined temporary non-working sides is illustrated by drawings, where:
FIG. 1 reflects the order of development of the career space with an indication in Roman numerals of the sequence of excavation of rock volumes.
FIG. 2 shows the design of the stone-protective platform, which protects the temporarily non-working side from the blasted rock, falling from the upper benches when working on the edge bands of separate steeply inclined steps of the temporarily non-working sides.
The method of opencast development of steeply dipping deposits with the use of combined temporary non-working sides consists in the following:
FIG. 1 reflects the division of the quarry on the development queue with Roman numbers (I, II, III, IV, V) indicating the sequence of operations. In the process of developing the career space, its working side 1 from the side of the lying side 2 of the field at the approach to the final contour of the quarry is turned into the limit side 3. At the limit side 3 are placed opening workings that serve for the cargo transport communication of the working horizons of the quarry with the surface, and from the side of the hanging side 4 deposits simultaneously with the development of mining begin to form a multi-stage temporarily non-working board, consisting of steeply inclined steps placed one on another 5. On a steeply inclined board 5 steps place opening excavations. In the foundations of steeply inclined steps 5, stone-protective platforms 6 are arranged for placing stones on them falling from above during the subsequent depreservation of steeply inclined steps 5 (Fig. 1). The steeply inclined steps 5 are provided with a width that provides the possibility of placing on them a falling rock mass 7 from above, stone protection embankments 8 with hydraulic backhoe excavators 9 mounted on them and a driveway 10 for feeding vehicles 11 for loading rock mass. Depreservation and mining of steeply inclined steps 5 are carried out successively from top to bottom in horizontal layers using hydraulic excavators 9 of the type “reverse shovel”. In this case, the re-activation of the upper steeply inclined steps 5 is combined with the formation of the lower steeply inclined steps 5, which are carried out simultaneously with the mining of the adjacent mineral volumes 12. The possibility of depreservation and mining of the lower steeply inclined stage 5 without reducing the mine’s mine productivity is ensured by reserving the mineral in the mining zone 13 of the mine in the necessary volumes IV (Fig. 1, 2).

Claims (1)

  1. Method for open development of steeply dipping fields using combined temporary non-working sides, including the formation of a working area of the open pit, overburden mining and provision of cargo transport communication for the working horizons of the open pit with the surface, characterized by the fact that during the development of open pit space it’s working side to the final contour of the pit is turned into a limit board and on it are placed the opening workings used for the freight transport communication working horizons of the quarry with the surface, and from the side of the hanging side of the deposit, simultaneously with the development of mining, they begin to form a multi-stage combined temporary non-working board consisting of steeply inclined steps arranged one on top of the other, on which the opening workings are placed, and in their foundations they arrange stone-protective platforms for placement on stones falling from above during the subsequent depreservation of steeply inclined steps, while the steeply inclined steps are performed in a width that ensures The possibility of placing on them a falling rock mass from above, stone-protecting embankments with hydraulic backhoe excavators mounted on them and access roads for transporting vehicles for loading rock mass, depreservation and mining of steeply inclined steps lead from top to bottom in horizontal layers using hydraulic excavators type "reverse shovel", while the re-activation of the upper steeply inclined steps combined in time with the formation of the bottom steeply inclined second stage, which leads simultaneously with working volumes adjacent minerals, and the possibility of re-entry and refinement bottom steeply inclined stage without sacrificing performance career Minerals provided by reserving in the mineral mining quarry zone.
RU2018134735A 2018-10-03 2018-10-03 Method for open development of steeply-dipping deposits with application of combined temporary non-working sides RU2685587C1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2738148C1 (en) * 2019-07-19 2020-12-08 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method for open development of deep-lying rounded deposits

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692364A (en) * 1969-10-31 1972-09-19 Sune Torsten Henriksson Method of open-pit mining
RU2064582C1 (en) * 1992-02-21 1996-07-27 Акционерное общество "Институт по проектированию горнорудных предприятий "Гипроруда" Method for openpit mining of minerals
RU2015130708A (en) * 2015-07-23 2017-01-25 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method for open development of steely falling deposits of a round shape using a queue
RU2612178C2 (en) * 2015-07-27 2017-03-02 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method of open mining of steep dipping field having round form using temporary nonworking sidewalls
RU2632606C1 (en) * 2016-05-04 2017-10-06 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method for depreservation steeply inclined nonactive sidewalls
RU2652234C1 (en) * 2017-04-17 2018-04-25 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method of open development of inclined deposits with the use of spoil banks

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3692364A (en) * 1969-10-31 1972-09-19 Sune Torsten Henriksson Method of open-pit mining
RU2064582C1 (en) * 1992-02-21 1996-07-27 Акционерное общество "Институт по проектированию горнорудных предприятий "Гипроруда" Method for openpit mining of minerals
RU2015130708A (en) * 2015-07-23 2017-01-25 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method for open development of steely falling deposits of a round shape using a queue
RU2612178C2 (en) * 2015-07-27 2017-03-02 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method of open mining of steep dipping field having round form using temporary nonworking sidewalls
RU2632606C1 (en) * 2016-05-04 2017-10-06 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method for depreservation steeply inclined nonactive sidewalls
RU2652234C1 (en) * 2017-04-17 2018-04-25 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method of open development of inclined deposits with the use of spoil banks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2738148C1 (en) * 2019-07-19 2020-12-08 Федеральное государственное бюджетное учреждение науки Институт горного дела Уральского отделения Российской академии наук (ИГД УрО РАН) Method for open development of deep-lying rounded deposits

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