CN104533422A - Noble metal mine pillar recovery method and timbering framework - Google Patents

Noble metal mine pillar recovery method and timbering framework Download PDF

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Publication number
CN104533422A
CN104533422A CN201410789838.3A CN201410789838A CN104533422A CN 104533422 A CN104533422 A CN 104533422A CN 201410789838 A CN201410789838 A CN 201410789838A CN 104533422 A CN104533422 A CN 104533422A
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CN
China
Prior art keywords
production
route
pillar
supporting
mine
Prior art date
Application number
CN201410789838.3A
Other languages
Chinese (zh)
Inventor
贾汉义
王金波
周东良
王祯
赵金刚
宝海忠
刘京超
曹英莉
何少博
Original Assignee
招金矿业股份有限公司夏甸金矿
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 招金矿业股份有限公司夏甸金矿 filed Critical 招金矿业股份有限公司夏甸金矿
Priority to CN201410789838.3A priority Critical patent/CN104533422A/en
Publication of CN104533422A publication Critical patent/CN104533422A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/02Lining predominantly with wood

Abstract

The invention belongs to the technical field of underground exploitation of metal mines and particularly relates to a noble metal mine pillar recovery method and a timbering framework. After a goaf in a pillar support stability influence range is pretreated by filling, recovery is performed by adopting a small-section and overall-section support upward drift-fill method according to the shape characteristics of a retained mine pillar; self-stabilization can be realized by fully utilizing self-stability of mine rock; meanwhile, timbering is realized by adopting a small-section and overall-section timbering method; safety influences caused by adjacent mined fields to pillar recovery can be effectively weakened; high safety coefficient is realized; a local fan is used for ventilation, and a good ventilation effect is achieved. The method disclosed by the invention has the advantages of realizing safe exploitation of retained mine pillars, reducing the loss rate of ores, effectively solving the mine resource crisis, fully recycling limited mine resources and realizing continuous development of the mines.

Description

A kind of noble metal mine pillar recovery method and supporting framework
Technical field
The invention belongs to metal mine underground mining technologies field, particularly relate to a kind of noble metal mine pillar recovery method and supporting framework.
Background technology
In noble metal bargh, build ore deposit in early days by the restriction of production technique level, left over a large amount of ore pillar in order to maintain Stope stability in exploitation process, this part ore pillar fails to reclaim in time, and cause ore losses serious, limited resource is not fully utilized.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, a kind of noble metal mine pillar recovery method and supporting framework are provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: comprise multiple stope curtain wall left over and the goaf being positioned at described curtain wall periphery, step is as follows:
(1) carry out filling to the goaf being positioned at the described curtain wall periphery treating back production, filling raw material used comprises crude tailings or barren rock;
(2) will treat that region, back production mining area is planned, and selected main route position is as the connecting taxiway of back production;
(3) the described curtain wall treating back production carries out slicing planning, by bottommost, be set as first floor, the ore pillar adopting light section supporting to treat back production on the first layer carries out back production: first utilize ore deposit rock self stability to carry out, from steady, namely carry out small-sized Drift stoping and forming stope route;
(4) in the excavation of stope route described in light section, make route suspension device and carry out supporting operation, then limit Cai Jin limit supporting, form tunneling boring supporting; And adopt into described stope route in local fan ventilation is set;
(5) after the back production of described stope route terminates, top tight filling is carried out;
(6) then, above this stope route, carry out second layer operation, repeat above-mentioned (1) ~ (4) step, until second layer operation completes;
(7) above-mentioned operation is repeated, until selected pillar recovery terminates;
(8) select other ore pillar of back production district else, repeat above-mentioned operation, until complete selected back production district operation.
Further, described step (2) comprising: described main route construction, to arteries and veins end of a lane sandfilling place, carries out the supporting of round log frame; Construction, to lower wall framework intersection, makes the supporting of round log frame and route light section follow up simultaneously, until construction is coiled to ore body.
Further, described light-gauge stope route specification is wide is 1.2-1.5 rice, and height is 1.5-2 rice.
Further, the wood stud of the route suspension device on upper strata is corresponding with lower floor position.
Further, an ore pillar should at least be isolated between the ore pillar of back production or front and back back production while that the selection principle of other ore pillar of alternative back production district described in step (8) being two.
A supporting framework described in above-mentioned stoping method, comprising: help to play perpendicular support, top board plank and round log stull filling with round log at route two, and stull support junction metal diagonal brace fix with perpendicular, the supporting framework of a formation complete beaer.
Wherein, described log diameter is more than or equal to 120mm, and described plank thickness is more than or equal to 40mm, and described perpendicular tie distance is more than or equal to 800mm.
The invention has the beneficial effects as follows: by supporting framework of the present invention and stoping method; safe working can be carried out to leaving over ore pillar, reducing ore loss ratio, effective Solve Mine Resources Crises; the mine resources that abundant recycling is limited, realizes the sustainable development in mine.
Accompanying drawing explanation
Fig. 1 is supporting configuration diagram of the present invention;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 is pillar recovery front view of the present invention;
Fig. 4 is pillar recovery hierarchy schematic diagram;
In figure, 1, plank; 2, round log; 3, diagonal brace.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with example and accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
A kind of supporting framework, comprising: help with the perpendicular support of round log 2 dozens at route two, top board plank 1 and round log 2 stull filling, stull is fixed with the perpendicular junction metal diagonal brace 3 that supports, and forms the supporting framework of a complete beaer.
Utilize supporting framework described above to carry out the pillar recovery of noble metal mine, step is as follows:
(1) comprise multiple stope curtain wall left over and the goaf being positioned at described curtain wall periphery, carry out filling to the goaf being positioned at the described curtain wall periphery treating back production, filling raw material used comprises crude tailings or barren rock;
(2) will treat that region, back production mining area is planned, and selected main route position is as the connecting taxiway of back production; Described main route construction, to arteries and veins end of a lane sandfilling place, carries out the supporting of round log frame; Construction, to lower wall framework intersection, makes the supporting of round log frame and route light section follow up simultaneously, until construction is coiled to ore body.
(3) the described curtain wall treating back production carries out slicing planning, by bottommost, be set as first floor, the ore pillar adopting light section supporting to treat back production on the first layer carries out back production: first utilize ore deposit rock self stability to carry out, from steady, namely carry out small-sized Drift stoping and forming stope route;
(4) in the excavation of stope route described in light section, make route suspension device and carry out supporting operation, then limit Cai Jin limit supporting, form tunneling boring supporting; And adopt into described stope route in local fan ventilation is set;
(5) after the back production of described stope route terminates, top tight filling is carried out;
(6) then, above this stope route, carry out second layer operation, repeat above-mentioned (1) ~ (4) step, until second layer operation completes;
(7) above-mentioned operation is repeated, until selected pillar recovery terminates;
(8) select other ore pillar of back production district else, repeat above-mentioned operation, until complete selected back production district operation.
Further, described light-gauge stope route specification is wide is 1.2-1.5 rice, and height is 1.5-2 rice.
Further, the wood stud of the route suspension device on upper strata is corresponding with lower floor position, serves as artificial ore pillar, ensures good stressed effect, ensure STOPE STABILITY.
Further, between the ore pillar of back production or front and back back production while that the selection principle of other ore pillar of alternative back production district described in step (8) being two, an ore pillar at least should be isolated.
Wherein, stoping operation each time with the stope support framework top board of back production filling or tailings filling body for the scope of operation, carry out the operations such as next step driling explosion ore removal filling, upwards carry out back production with this move in circles successively (every 2 meters is a layering).
As shown in Fig. 3, Fig. 4, need to carry out back production one by one to 1. number, 2. number, 3. number and 4. number ore pillar, 40#, 41#, 42#, 43#, 44# and 45# stope back production is complete, and has carried out tailing-filled.The connecting taxiway of route as back production is interted from the construction of 43# main route, construction is to arteries and veins end of a lane sandfilling place, supporting framework is used to carry out supporting, construction is to lower wall ore limits place, supporting framework must follow up with route light section simultaneously, until construction is coiled to ore body, after a layering stope construction, tailings top tight filling must be carried out.After treating a layering pillar recovery, as shown in Figure 4, several support brackets are configured to support, according to the slanting angle of ore body, at ore body lower wall construction ventilation well, carry out lower one deck back production.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (7)

1. a noble metal mine pillar recovery method, comprises multiple stope curtain wall left over and the goaf being positioned at described curtain wall periphery, it is characterized in that step is as follows:
(1) carry out filling to the goaf being positioned at the described curtain wall periphery treating back production, filling raw material used comprises crude tailings or barren rock;
(2) will treat that region, back production mining area is planned, and selected main route position is as the connecting taxiway of back production;
(3) the described curtain wall treating back production carries out slicing planning, by the bottom, be set as first floor, the ore pillar adopting light section supporting to treat back production on the first layer carries out back production: first utilize ore deposit rock self stability to carry out, from steady, namely carry out small-sized Drift stoping and forming stope route;
(4) in the excavation of stope route described in light section, make route suspension device and carry out supporting operation, then limit Cai Jin limit supporting, form tunneling boring supporting; And adopt into described stope route in local fan ventilation is set;
(5) after the back production of described stope route terminates, top tight filling is carried out;
(6) then, above this stope route, carry out second layer operation, repeat above-mentioned (1) ~ (4) step, until second layer operation completes;
(7) above-mentioned operation is repeated, until selected pillar recovery terminates;
(8) select other ore pillar of back production district else, repeat above-mentioned operation, until complete selected back production district operation.
2. pillar recovery method in noble metal mine according to claim 1, is characterized in that, described step (2) comprising: described main route construction, to arteries and veins end of a lane sandfilling place, carries out the supporting of round log frame; Construction, to lower wall framework intersection, makes the supporting of round log frame and route light section follow up simultaneously, until construction is coiled to ore body.
3. pillar recovery method in noble metal mine according to claim 1, is characterized in that, described light-gauge stope route specification is wide is 1.2-1.5 rice, and height is 1.5-2 rice.
4. pillar recovery method in noble metal mine according to claim 1, is characterized in that, the wood stud of the route suspension device on upper strata is corresponding with lower floor position.
5. pillar recovery method in noble metal mine according to claim 1, is characterized in that, at least should isolate an ore pillar between the ore pillar of back production or front and back back production while that the selection principle of other ore pillar of alternative back production district described in step (8) being two.
6. a supporting framework according to claim 1, is characterized in that, described supporting framework comprises: help to play perpendicular support, top board plank and round log stull filling with round log at route two, and stull is supportted junction metal diagonal brace fix with perpendicular.
7. supporting framework according to claim 6, is characterized in that, described log diameter is more than or equal to 120mm, and described plank thickness is more than or equal to 40mm, and described perpendicular tie distance is more than or equal to 800mm.
CN201410789838.3A 2014-12-18 2014-12-18 Noble metal mine pillar recovery method and timbering framework CN104533422A (en)

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Application Number Priority Date Filing Date Title
CN201410789838.3A CN104533422A (en) 2014-12-18 2014-12-18 Noble metal mine pillar recovery method and timbering framework

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109711025A (en) * 2018-12-20 2019-05-03 西安科技大学 Shallow embedding low coverage house column type goaf Upward mining rock stratum stability analysis method

Citations (6)

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Publication number Priority date Publication date Assignee Title
CN1456788A (en) * 2003-06-06 2003-11-19 中南大学 Continuous mining process with deep hole dropping and top-bottom pillars mining in advance
CN103527200A (en) * 2013-10-25 2014-01-22 河北省矾山磷矿有限公司 Sill-pillar-free sublevel rhombus room subsequent filling mining method
CN103573268A (en) * 2012-08-05 2014-02-12 彭康 Upward horizontal layered filling mining method of stress arch continuous mining
CN103590831A (en) * 2013-11-22 2014-02-19 北京科技大学 Novel mining method of gently-inclined thin and medium thickness ore bodies
CN103615285A (en) * 2013-12-04 2014-03-05 南京银茂铅锌矿业有限公司 Stope route arrangement mode and method beneficial to roof-contacted filling
CN104100268A (en) * 2013-04-08 2014-10-15 彭康 Seesaw-type timbering roof building remaining ore extraction method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1456788A (en) * 2003-06-06 2003-11-19 中南大学 Continuous mining process with deep hole dropping and top-bottom pillars mining in advance
CN103573268A (en) * 2012-08-05 2014-02-12 彭康 Upward horizontal layered filling mining method of stress arch continuous mining
CN104100268A (en) * 2013-04-08 2014-10-15 彭康 Seesaw-type timbering roof building remaining ore extraction method
CN103527200A (en) * 2013-10-25 2014-01-22 河北省矾山磷矿有限公司 Sill-pillar-free sublevel rhombus room subsequent filling mining method
CN103590831A (en) * 2013-11-22 2014-02-19 北京科技大学 Novel mining method of gently-inclined thin and medium thickness ore bodies
CN103615285A (en) * 2013-12-04 2014-03-05 南京银茂铅锌矿业有限公司 Stope route arrangement mode and method beneficial to roof-contacted filling

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陈国山等: "撞楔法在三道岔矿残矿回采中的应用", 《黄金》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109711025A (en) * 2018-12-20 2019-05-03 西安科技大学 Shallow embedding low coverage house column type goaf Upward mining rock stratum stability analysis method

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Application publication date: 20150422