CN106837335A - Truck cooperates with ore removal sill pillars sublevel caving method - Google Patents

Truck cooperates with ore removal sill pillars sublevel caving method Download PDF

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Publication number
CN106837335A
CN106837335A CN201710154314.0A CN201710154314A CN106837335A CN 106837335 A CN106837335 A CN 106837335A CN 201710154314 A CN201710154314 A CN 201710154314A CN 106837335 A CN106837335 A CN 106837335A
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China
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ore
truck
sublevel caving
caving method
ramp
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CN106837335B (en
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陈庆发
胡华瑞
陈青林
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Guangxi University
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Guangxi University
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK 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 OR ROCK DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00Transport specially adapted to underground conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

A kind of truck cooperates with ore removal sill pillars sublevel caving method, comprises the following steps:By the inclination inclined thick ore body or arbitrary angle of lower wall country rock moderately stable and the above extremely thick ore body division stage, divided along orebody strike in the stage and be segmented;The outer haulage drift of ore body lower wall arrangement arteries and veins and ramp;Using the transport short drop shaft of tunnelling and the sensible ore body of drilling drift outside arteries and veins;Using vertical sector medium-length hole ore blast during back production;Ore is directly loadable into truck through short drop shaft and drawing chute under overlying strata, is then transported to earth's surface through ramp.The present invention has reformed traditional vertical long hole and has fallen ore deposit sill pillars sublevel caving method, using the direct ore removal of truck, improves mechanization degree, ensure that the collaboration of ore deposit and ore removal, polycrystalline substance is simplified, ore transhipment cargo handling operation is reduced, mining production efficiency is improved.

Description

Truck cooperates with ore removal sill pillars sublevel caving method
Technical field
The present invention relates to a kind of mining methods of metal mine underground mining, specifically a kind of truck collaboration ore removal has foundation Sublevel caving method, it is adaptable to which earth's surface allows the inclination-inclined thick ore body of avalanche, lower wall country rock moderately stable and the above or any The extremely thick orebody mining in inclination angle.
Background technology
For allowing earth's surface avalanche, and the inclination-inclined thick ore body of lower wall country rock moderately stable and the above or arbitrarily incline The extremely thick ore body in angle, it is general to be fallen ore deposit sill pillars sublevel caving method back production using vertical long hole, have during this method back production ore body and open Adopt that intensity is big, the reliable advantage of production safety, but due to using ore removals such as scraper, drop shafts, also there is bottom to a certain extent Complex structure, adopt that quasi- cutting quantities is big, the low shortcoming of ore removal efficiency, cause stope to fall ore deposit and ore removal operation in time and ore deposit amount On be unable to good match.
In recent years, it is the trend of China's underground mining technology development that mining link simplifies with flexible transport, this A little thoughts have stronger directive significance for the innovation of conventional mining method.If these thoughts are used to reform traditional hanging down Straight deep hole falls ore deposit sill pillars sublevel caving method, it will help to ensure that the collaboration of ore deposit and ore removal operation on time and ore deposit amount, Lift the production efficiency in mine.
The content of the invention
The shortcoming of the ore deposit sill pillars sublevel caving method that falls for traditional vertical long hole of the invention, there is provided a kind of truck is cooperateed with out Ore deposit sill pillars sublevel caving method.The method transports ore deposit using truck, final to improve fall ore deposit and ore removal using the direct ore removal of ramp Harmony.It can simplify nugget polycrystalline substance, and reduction is adopted and cuts quantities;Improve mining mechanization degree and ore ore removal effect Rate, further improves the production capacity of nugget, finally realizes safe efficient, the inexpensive collaboration back production of ore body.
To solve above-mentioned technical barrier, the technical solution adopted by the present invention is:A kind of truck collaboration ore removal has foundation to be segmented Caving Method with Large Space, comprises the following steps:
(1) by the extremely thick ore body division rank of inclination more than lower wall country rock moderately stable-inclined thick ore body or arbitrary angle Divided along orebody strike in section, stage and be segmented;
(2) before ore body back production, drawing chute, short drop shaft and rock drilling lane are constructed in bottom using the outer haulage drift of the pulse at the CHI Road, using drilling drift driving cutting gallery and slot raise, cutting groove is formed using medium-length hole blasting by slot raise expansion side;
(3) during block stoping, fallen ore deposit using vertical fan shaped medium length hole high bunch continuous method by the scope of freedom of cutting groove, every time 8~10 artillery salvo holes are collapsed, ore is directly loadable into truck through short drop shaft and drawing chute under overlying strata, truck is transported to ground through ramp Table a, until substoping is finished.
More than the lower wall country rock moderately stable inclination-inclined thick ore body or the arbitrary angle extremely thick ore body division stage, Divided along orebody strike in stage 50~60m high, stage and be segmented, be segmented 10~25m high, segmentation foundation 6~8m high.
More than the lower wall country rock moderately stable inclination-inclined thick ore body or the arbitrary angle extremely thick ore body division stage, Comprise the following steps:
It is that short drop shaft and specification that 4m × 3m haulage drifts dig 3m × 2m in segmentation foundation are 3m × 3m first with specification Drilling drift, and by drilling drift dig specification for 2m × 2m cutting gallery and specification be 2m × 2m slot raises, utilize Slot raise expansion side is formed cutting groove by medium-length hole blasting, and explosion scope of freedom during as ore back production is beaten in drilling drift Vertical fan shaped medium length hole, and most inner side blasthole is straight at 55 °~60 °, so that ore is glided using deadweight, is extruded using elementary errors Explosion from left to right or from right to left ore caving successively, collapses 8~10 artillery salvo holes every time, and ore leaks through short drop shaft and ore drawing under overlying strata Bucket is directly loadable into truck, and truck is transported to earth's surface through the ramp that specification is 3m × 3m, until a substoping is finished.
Drawing chute mouth is provided with vibration ore dumping machine, and ore drawing machine goes out mine mouth end apart from roadway floor at least 2.5m。
The ramp gradient is 10%~20%.
The ramp turn of bilge gradient is 0~3%.
The ramp is two-way traffic with haulage drift joint, meets the requirement that two trucies pass through side by side.
The truck is spaced 0.5~1m and rests in haulage drift near funnel side underface.
Prominent technical characterstic of the invention is:
(1) ore deposit is transported using truck, using the direct ore removal of ramp, improves mechanization degree, improve ore deposit and ore removal Harmony on activity duration and ore deposit amount, overcome conventional vertical deep hole fall ore deposit sill pillars sublevel caving method ore removal efficiency it is low lack Point, improves production efficiency.
(2) slusher runner engineering is reduced, polycrystalline substance is simplified;
(3) ore transhipment cargo handling operation is reduced.
Brief description of the drawings
Fig. 1 is the sectional view of truck of the present invention collaboration ore removal sill pillars sublevel caving method I-I.
Fig. 2 is the sectional view of truck of the present invention collaboration ore removal sill pillars sublevel caving method II-II.
Fig. 3 is the sectional view of truck of the present invention collaboration ore removal sill pillars sublevel caving method III-III.
Marked in figure:Haulage drift 1, short drop shaft 2, drilling drift 3, blasthole 4, cutting groove 5, cutting gallery 6, ramp 7th, ramp curved 8, truck 9, lower wall country rock 10.
Specific embodiment
Technical scheme is further described below by way of drawings and Examples.
As shown in Figure 1 to Figure 3, truck collaboration ore removal sill pillars sublevel caving method of the present invention, comprises the following steps:
(1) it is by the extremely thick ore body division of inclination more than lower wall country rock moderately stable-inclined thick ore body or arbitrary angle Divided along orebody strike in stage, stage and be segmented, stage 50~60m high is divided along orebody strike in the stage and is segmented, and is segmented high by 10 ~25m, segmentation foundation 6~8m high.
(2) before back production, it is the haulage drift 1 of 4m × 3m that specification is dug in ore body lower wall country rock, from bottom to top at segmentation bottom The short drop shaft 2 and specification of pick 3m × 2m are the drilling drift 3 of 3m × 3m in post, and it is 2m × 2m to dig specification by drilling drift 3 Cutting gallery 6 and specification be 2m × 2m slot raises 5, slot raise 5 is expanded in medium-length hole blasting mode and helps into cutting groove, make Explosion scope of freedom during for back production;
(3) during back production, beat vertical fan shaped medium length hole 4 in the drilling drift 3, and most on the inside of blasthole straight at 55 °~ 60 °, so that ore is slipped certainly;The from left to right or from right to left ore caving successively using high bunch continuous method, collapses 8~10 artillery salvos every time Hole;During ore removal, truck 9 is entered by the left side of haulage drift 1, is rested against immediately below drawing chute mouthful, and the time interval 0.5 of truck 9~ 1m;After dress ore deposit is finished, transported by the right side of haulage drift 1, through specification for the ramp 7 of 3m × 3m is transported to earth's surface.

Claims (7)

1. a kind of truck cooperates with ore removal sill pillars sublevel caving method, it is characterized in that, comprise the following steps:
(1) by inclination more than lower wall country rock moderately stable-inclined thick ore body or arbitrary angle extremely thick ore body division stage, rank Divided along orebody strike in section and be segmented;
(2) before ore body back production, drawing chute, short drop shaft and drilling drift are constructed in bottom using the outer haulage drift of the pulse at the CHI, profit Cutting gallery and slot raise are tunneled with drilling drift, slot raise expansion side is formed into cutting groove using medium-length hole blasting;
(3) during block stoping, fallen ore deposit using vertical fan shaped medium length hole high bunch continuous method by the scope of freedom of cutting groove, 8 are collapsed every time ~10 artillery salvo holes, ore is directly loadable into truck through short drop shaft and drawing chute under overlying strata, and truck is transported to earth's surface through ramp, directly Finished to a substoping.
2. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, it is characterized in that, in the lower wall country rock Etc. firm inclination-inclined thick ore body or arbitrary angle above extremely thick ore body division stage, stage 50~60m high, edge in the stage Orebody strike divides segmentation, is segmented 10~25m high, segmentation foundation 6~8m high.
3. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, it is characterized in that, in the lower wall country rock Etc. firm inclination-inclined thick ore body or the arbitrary angle above extremely thick ore body division stage, comprise the following steps:
It is that short drop shaft and specification that 4m × 3m haulage drifts dig 3m × 2m in segmentation foundation are the chisel of 3m × 3m first with specification Rock gangway road, and specification is dug for the cutting gallery and specification of 2m × 2m are 2m × 2m slot raises by drilling drift, it is deep in utilization Slot raise expansion side is formed cutting groove by hole explosion, and explosion scope of freedom during as ore back production beats vertical in drilling drift Fan shaped medium length hole, and most inner side blasthole is straight at 55 °~60 °, so that ore is glided using deadweight, using high bunch continuous method Ore caving successively, collapses 8~10 artillery salvo holes every time from left to right or from right to left, and ore is straight through short drop shaft and drawing chute under overlying strata It is hinged with into truck, truck is transported to earth's surface through the ramp that specification is 3m × 3m, until a substoping is finished.
4. truck according to claim 2 cooperates with ore removal sill pillars sublevel caving method, it is characterized in that, the drawing chute mouthful Vibration ore dumping machine is installed, and ore drawing machine goes out mine mouth end apart from roadway floor at least 2.5m.
5. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, it is characterized in that, the ramp gradient It is 10%~20%.
6. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, it is characterized in that, the ramp turn of bilge The gradient is 0~3%.
7. truck according to claim 1 collaboration ore removal sill pillars sublevel caving method, it is characterized in that, the ramp and fortune Defeated tunnel joint is two-way traffic, meets the requirement that two trucies pass through side by side.
CN201710154314.0A 2017-03-15 2017-03-15 Truck cooperates with ore removal sill pillars sublevel caving method Active CN106837335B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687339A (en) * 2017-09-14 2018-02-13 南华大学 A kind of efficient mining methods of Media thick and rake ore body
CN110700833A (en) * 2019-10-31 2020-01-17 广西大学 Medium-length hole multi-stope and subsection common drop shaft mining method for hanging wall ore body mining
CN111638090A (en) * 2020-07-07 2020-09-08 中冶北方(大连)工程技术有限公司 Medium-length hole sampling equipment and method for sublevel caving method mining without bottom pillar
CN111997611A (en) * 2020-09-07 2020-11-27 贵州紫金矿业股份有限公司 Steeply inclined ore body inclination raise sublevel mining method
CN113137232A (en) * 2021-05-07 2021-07-20 南华大学 Efficient mining method based on fluid changing effect
CN113216958A (en) * 2021-05-25 2021-08-06 紫金矿业集团股份有限公司 Inverted frustum-shaped ore gathering natural caving mining method
CN115680662A (en) * 2023-01-03 2023-02-03 矿冶科技集团有限公司 Mechanical mining structure and mining method for thin to medium-thick ore body
CN117722181A (en) * 2024-02-07 2024-03-19 贵州息烽磷矿有限责任公司 Method and system for mining steep-inclined thick and large ore body protection column

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Publication number Priority date Publication date Assignee Title
CN101338674A (en) * 2008-08-14 2009-01-07 武汉理工大学 Non-pillar sublevel caving mining method for direct loading for ore
CN103362510A (en) * 2013-08-01 2013-10-23 广西大学 Sublevel-drilling bench-combination ore-removal sublevel-room mining method
CN104100270A (en) * 2014-06-13 2014-10-15 贵州开磷(集团)有限责任公司 Trackless mining method for gently inclined ore vein
CN104533416A (en) * 2014-12-25 2015-04-22 中冶北方(大连)工程技术有限公司 Large-scale mechanized non-sill-pillar sub-level caving mining method for extremely thick ore body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101338674A (en) * 2008-08-14 2009-01-07 武汉理工大学 Non-pillar sublevel caving mining method for direct loading for ore
CN103362510A (en) * 2013-08-01 2013-10-23 广西大学 Sublevel-drilling bench-combination ore-removal sublevel-room mining method
CN104100270A (en) * 2014-06-13 2014-10-15 贵州开磷(集团)有限责任公司 Trackless mining method for gently inclined ore vein
CN104533416A (en) * 2014-12-25 2015-04-22 中冶北方(大连)工程技术有限公司 Large-scale mechanized non-sill-pillar sub-level caving mining method for extremely thick ore body

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687339A (en) * 2017-09-14 2018-02-13 南华大学 A kind of efficient mining methods of Media thick and rake ore body
CN110700833A (en) * 2019-10-31 2020-01-17 广西大学 Medium-length hole multi-stope and subsection common drop shaft mining method for hanging wall ore body mining
CN111638090A (en) * 2020-07-07 2020-09-08 中冶北方(大连)工程技术有限公司 Medium-length hole sampling equipment and method for sublevel caving method mining without bottom pillar
CN111638090B (en) * 2020-07-07 2024-06-04 中冶北方(大连)工程技术有限公司 Medium-length hole sampling equipment and method for mining by using non-bottom column sublevel caving method
CN111997611A (en) * 2020-09-07 2020-11-27 贵州紫金矿业股份有限公司 Steeply inclined ore body inclination raise sublevel mining method
CN113137232A (en) * 2021-05-07 2021-07-20 南华大学 Efficient mining method based on fluid changing effect
CN113216958A (en) * 2021-05-25 2021-08-06 紫金矿业集团股份有限公司 Inverted frustum-shaped ore gathering natural caving mining method
CN115680662A (en) * 2023-01-03 2023-02-03 矿冶科技集团有限公司 Mechanical mining structure and mining method for thin to medium-thick ore body
CN117722181A (en) * 2024-02-07 2024-03-19 贵州息烽磷矿有限责任公司 Method and system for mining steep-inclined thick and large ore body protection column
CN117722181B (en) * 2024-02-07 2024-04-26 贵州息烽磷矿有限责任公司 Method and system for mining steep-inclined thick and large ore body protection column

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