CN104343454B - A kind of mechanization point pillar house column mining method - Google Patents
A kind of mechanization point pillar house column mining method Download PDFInfo
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- CN104343454B CN104343454B CN201410450553.7A CN201410450553A CN104343454B CN 104343454 B CN104343454 B CN 104343454B CN 201410450553 A CN201410450553 A CN 201410450553A CN 104343454 B CN104343454 B CN 104343454B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005065 mining Methods 0.000 title claims abstract description 20
- 239000011435 rock Substances 0.000 claims abstract description 39
- 238000005553 drilling Methods 0.000 claims abstract description 29
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- 230000011218 segmentation Effects 0.000 claims description 38
- 210000001367 artery Anatomy 0.000 claims description 15
- 210000003462 vein Anatomy 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 238000004880 explosion Methods 0.000 claims description 10
- 229910052655 plagioclase feldspar Inorganic materials 0.000 claims description 8
- 210000000481 breast Anatomy 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 5
- 230000018109 developmental process Effects 0.000 claims description 5
- 239000002360 explosive Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 5
- 239000010981 turquoise Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010790 dilution Methods 0.000 abstract description 4
- 239000012895 dilution Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
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Abstract
The invention discloses a kind of mechanization point pillar house column mining method, comprise stope layout, stopping sequence, adopt accurate cutting, back production, rock drilling, roof control, ore removal, ventilation. The present invention efficiently solves in multilayer ore body recovery process influencing each other and the problem of restriction mutually between levels, and between levels, operation is disturbed littlely, and loss and dilution is effectively controlled, and production cost significantly reduces.
Description
Technical field
The invention belongs to mining technique field, be specifically related to a kind of mechanization point pillar house column mining method.
Background technology
Low-angle dip is thin ~ exploitation of middle thickness orebody is the difficult problem on mining circle always, and especially with multilayer low-angle dip thin ~ the exploitation difficulty maximum of middle thickness orebody. Mainly contain point to adopt and close for the traditional recovery method of this type of ore body and adopt two kinds of forms, but effect not very desirable always, cannot on production space, realize intensive efficiently, do not reach the target of safe and efficient low cost exploitation. The production practices in domestic many mines show, these methods are all in existing problems in varying degrees. The outstanding problem that the former exists is that between levels, stoping operation disturbs greatly, and mainly with the back production of descending mining mode, underground pressure management difficulty is large, adopts cut journey large, and loss and dilution is high; And close the subject matter of adopting, to be to control stope top board difficulty large, poor stability, and ore dilution increases, deficiency in economic performance.
Summary of the invention
The first object of the present invention is to provide a kind of mechanization point pillar house column mining method.
The object of the invention object is achieved in that and comprises the following steps: stope layout, stopping sequence, adopt accurate cutting, back production, rock drilling, roof control, ore removal, ventilation, be specially:
The first step: stope is arranged: panel and stope are arranged and inscape: panel across pitch is arranged, the long 180 ~ 220m of panel across pitch, tendency plagioclase is controlled by 18 ~ 22m height of lift, in panel, is divided into 4 stopes by strike length 45 ~ 55m; Across strike is stayed studding between stope and between panel, and studding width 3 ~ 4m stays regular point post according to steady of roof in stope, stays 8 ~ 12m fore-set simultaneously;
Second step: stopping sequence: multilayer ore body can be exploited simultaneously, guarantees levels ore body studding and puts post in vertical non-alignment;
The 3rd step: adopt accurate cutting: adopt arteries and veins external lower disk development layout form; Arrange segmentation drift at lower floor's ore body lower wall across pitch, arrange and wear arteries and veins ore removal connection road, be convenient to scraper and enter slicing working face; Arrange rockhole, sensible transport of water paperback ore deposit Chuan Mai at panel medium position; Tiltedly go up a hill at the every 480 ~ 530m layout of segmentation tunnel lower wall return air along orebody trend, UNICOM's top tailgate; In the middle part of correspondingly between two adjacent return air are gone up a hill, segmentation formation air intake is gone up a hill from bottom to top, both coordinate, and formation exploiting field is entered, return air channel, enter stope at stope middle part by segmentation main line digging ore removal connection road, when ore removal connection road is dug in each segmentation for the first time, dig to ore body base plate by 15% ~ 18% the gradient downwards, level is dug to upper strata ore body roof afterwards, afterwards along with the decline of sublayer, bear down on one along ore removal connection road, form the ore removal passage of next layering; In each layer of ore body base plate arteries and veins, dug cutting gallery by ore removal route to stope end, then along the ore body incline direction digging stope return air top segment level of going up a hill, dig afterwards return air and join road and upper segmentation main line UNICOM along the pulse;
The 4th step: back production: 4 stopes in panel, by the arrangement of the process procedure such as rock drilling, ore removal, carry out rock drilling, explosion, roof control in 2 stopes; 1 stope carries out ore removal operation; 1 stope is adopted standard, and by standard extent calculation, rock drilling, ore removal and slicing and filling cycle are 28 ~ 35 days, and stoping operation is launched by first layer cutting gallery, slicing height 4.8 ~ 5.2m;
The 5th step: rock drilling: adopt driving chassis along orebody trend Drilling lateral aperture, aperture φ 56mm, hole depth 3m, W=1.0m ~ 1.2m, a=1.2m ~ 1.4m; Adopt BQF ~ 100 explosive loader to join mobile platform dress 2# rock dynamite, the Nonel detonator detonates; Lean ore body and receive residual employing yt28 rock drill and coordinate;
The 6th step: roof control: after explosion is ventilated, carry out top board nursery work, first adopt sled anchor chassis to carry out top board float stone, turquoise cleaning, then look top board situation, adopt rock bolting jumbo to reinforce top board, adopt pipe-seam type anchor rod Strengthening Roof, anchor pole spacing 1.0 × 1.0m, length is greater than 1.5m, and Area cracked adopts anchor net to reinforce;
The 7th step: ore removal: adopt 3m3Diesel LHD ore removal, averge distance carried is at 145 ~ 155m, scraper efficiency 700t/d ~ 800t/d; Lean ore body and receive residual employing 2m3Scraper coordinates;
The 8th step: ventilate: freshly distinguished and admirablely enter stope mining face by segmentation drift, dirty wind is gone up a hill and is returned back out, enters upper segment section main line by the return air that is arranged on stope end, entering exploiting field return air by return air connection road goes up a hill, enter again mine return air system, the return air connection road of going up a hill in the inherent top of stope arranges JK55 ~ No4 portable blower, make stope secondary ventilation, each slicing is complete, enters the circulation of back production next time.
The present invention efficiently solves in multilayer ore body recovery process influencing each other and the problem of restriction mutually between levels, and between levels, operation is disturbed littlely, and loss and dilution is effectively controlled, and production cost significantly reduces.
Brief description of the drawings
Fig. 1 is section layout drawing of the present invention;
Fig. 2 is floor plan of the present invention.
In figure: 1-barren rock drop shaft, 2-cutting crosscut, 3-ore removal connection road, 4-mine chute, 5-point post, 6-exploiting field return air are gone up a hill, 7-return air is gone up a hill, 8-level haulage lane, 9-segmentation main line along the pulse.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated, but must not be limited the present invention by any way, and any change or the improvement done based on training centre of the present invention, all belong to protection scope of the present invention.
As shown in drawings and Examples: the present invention includes following steps: stope layout, stopping sequence, adopt accurate cutting, back production, rock drilling, roof control, ore removal, ventilation, be specially:
The first step: stope is arranged: panel and stope are arranged and inscape: panel across pitch is arranged, the long 180 ~ 220m of panel across pitch, tendency plagioclase is controlled by 18 ~ 22m height of lift, in panel, is divided into 4 stopes by strike length 45 ~ 55m; Across strike is stayed studding between stope and between panel, and studding width 3 ~ 4m stays regular point post according to steady of roof in stope, stays 8 ~ 12m fore-set simultaneously;
Second step: stopping sequence: multilayer ore body can be exploited simultaneously, guarantees levels ore body studding and puts post in vertical non-alignment;
The 3rd step: adopt accurate cutting: adopt arteries and veins external lower disk development layout form; Arrange segmentation drift at lower floor's ore body lower wall across pitch, arrange and wear arteries and veins ore removal connection road, be convenient to scraper and enter slicing working face; Arrange rockhole, sensible transport of water paperback ore deposit Chuan Mai at panel medium position; Tiltedly go up a hill at the every 480 ~ 530m layout of segmentation tunnel lower wall return air along orebody trend, UNICOM's top tailgate; In the middle part of correspondingly between two adjacent return air are gone up a hill, segmentation formation air intake is gone up a hill from bottom to top, both coordinate, and formation exploiting field is entered, return air channel, enter stope at stope middle part by segmentation main line digging ore removal connection road, when ore removal connection road is dug in each segmentation for the first time, dig to ore body base plate by 15% ~ 18% the gradient downwards, level is dug to upper strata ore body roof afterwards, afterwards along with the decline of sublayer, bear down on one along ore removal connection road, form the ore removal passage of next layering; In each layer of ore body base plate arteries and veins, dug cutting gallery by ore removal route to stope end, then along the ore body incline direction digging stope return air top segment level of going up a hill, dig afterwards return air and join road and upper segmentation main line UNICOM along the pulse;
The 4th step: back production: 4 stopes in panel, by the arrangement of the process procedure such as rock drilling, ore removal, carry out rock drilling, explosion, roof control in 2 stopes; 1 stope carries out ore removal operation; 1 stope is adopted standard, and by standard extent calculation, rock drilling, ore removal and slicing and filling cycle are 28 ~ 35 days, and stoping operation is launched by first layer cutting gallery, slicing height 4.8 ~ 5.2m;
The 5th step: rock drilling: adopt driving chassis along orebody trend Drilling lateral aperture, aperture φ 56mm, hole depth 3m, W=1.0m ~ 1.2m, a=1.2m ~ 1.4m; Adopt BQF ~ 100 explosive loader to join mobile platform dress 2# rock dynamite, the Nonel detonator detonates; Lean ore body and receive residual employing yt28 rock drill and coordinate;
The 6th step: roof control: after explosion is ventilated, carry out top board nursery work, first adopt sled anchor chassis to carry out top board float stone, turquoise cleaning, then look top board situation, adopt rock bolting jumbo to reinforce top board, adopt pipe-seam type anchor rod Strengthening Roof, anchor pole spacing 1.0 × 1.0m, length is greater than 1.5m, and Area cracked adopts anchor net to reinforce;
The 7th step: ore removal: adopt 3m3Diesel LHD ore removal, averge distance carried is at 145 ~ 155m, scraper efficiency 700t/d ~ 800t/d; Lean ore body and receive residual employing 2m3Scraper coordinates;
The 8th step: ventilate: freshly distinguished and admirablely enter stope mining face by segmentation drift, dirty wind is gone up a hill and is returned back out, enters upper segment section main line by the return air that is arranged on stope end, entering exploiting field return air by return air connection road goes up a hill, enter again mine return air system, the return air connection road of going up a hill in the inherent top of stope arranges JK55 ~ No4 portable blower, make stope secondary ventilation, each slicing is complete, enters the circulation of back production next time.
Described multilayer ore body is three layers of middle thickness orebody, accompanies one deck horsestone between any two.
Point post specification is 3 × 3m, some intercolumniation 10～13m.
Described driving chassis is Boomer281 type or AXERAD05 type.
Across pitch long 200m in panel in the first step, tendency plagioclase is controlled by 20m height of lift, in panel, is divided into 4 stopes by strike length 50m; Across strike is stayed studding between stope and between panel, and studding width 3 ~ 4m stays regular point post according to steady of roof in stope, stays 10m fore-set simultaneously.
In the 3rd step, tiltedly go up a hill at the every 500m layout of segmentation tunnel lower wall return air along orebody trend.
Slicing height 5m in the 4th step.
Embodiment 1
Panel across pitch is arranged, the long 180m of panel across pitch, and tendency plagioclase is controlled by 18m height of lift, in panel, is divided into 4 stopes by strike length 45m; Across strike is stayed studding between stope and between panel, and studding width 3-4m stays regular point post according to steady of roof in stope, stays 8m fore-set simultaneously; Multilayer ore body can be exploited simultaneously, guarantees levels ore body studding and puts post in vertical non-alignment; Adopt arteries and veins external lower disk development layout form; Arrange segmentation drift at lower floor's ore body lower wall across pitch, arrange and wear arteries and veins ore removal connection road, be convenient to scraper and enter slicing working face; Arrange rockhole, sensible transport of water paperback ore deposit Chuan Mai at panel medium position; Tiltedly go up a hill at the every 480m layout of segmentation tunnel lower wall return air along orebody trend, UNICOM's top tailgate; In the middle part of correspondingly between two adjacent return air are gone up a hill, segmentation formation air intake is gone up a hill from bottom to top, both coordinate, and formation exploiting field is entered, return air channel, enter stope at stope middle part by segmentation main line digging ore removal connection road, when ore removal connection road is dug in each segmentation for the first time, dig to ore body base plate by 15% the gradient downwards, level is dug to upper strata ore body roof afterwards, afterwards along with the decline of sublayer, bear down on one along ore removal connection road, form the ore removal passage of next layering; In each layer of ore body base plate arteries and veins, dug cutting gallery by ore removal route to stope end, then along the ore body incline direction digging stope return air top segment level of going up a hill, dig afterwards return air and join road and upper segmentation main line UNICOM along the pulse; 4 stopes in panel, by the arrangement of the process procedure such as rock drilling, ore removal, carry out rock drilling, explosion, roof control in 2 stopes; 1 stope carries out ore removal operation; 1 stope is adopted standard, and by standard extent calculation, rock drilling, ore removal and slicing and filling cycle are 28 days, and stoping operation is launched by first layer cutting gallery, slicing height 4.8m; Adopt driving chassis Boomer281 type along orebody trend Drilling lateral aperture, aperture φ 50mm, hole depth 3m, W=1.0m-1.2m, a=1.2m-1.4m; Adopt BQF-100 explosive loader to join mobile platform dress 2# rock dynamite, the Nonel detonator detonates; Lean ore body and receive residual employing YT-28 rock drill and coordinate; After explosion is ventilated, carry out top board nursery work, first adopt sled anchor chassis to carry out top board float stone, turquoise cleaning, then look top board situation, adopt rock bolting jumbo to reinforce top board, adopt pipe-seam type anchor rod Strengthening Roof, anchor pole spacing 1.0 × 1.0m, length is greater than 1.5m, and Area cracked adopts anchor net to reinforce; Adopt 3m3Diesel LHD ore removal, averge distance carried is at 145m, scraper efficiency 700t/d-800t/d; Lean ore body and receive residual employing 2m3Scraper coordinates; Freshly distinguished and admirablely enter stope mining face by segmentation drift, dirty wind is gone up a hill and is returned back out, enters upper segment section main line by the return air that is arranged on stope end, entering exploiting field return air by return air connection road goes up a hill, enter again mine return air system, the return air connection road of going up a hill in the inherent top of stope arranges JK55-No4 portable blower, make stope secondary ventilation, each slicing is complete, enters the circulation of back production next time.
Embodiment 2
As embodiment 1, wherein in first step, panel across pitch is arranged, the long 220m of panel across pitch, and tendency plagioclase is controlled by 22m height of lift, in panel, is divided into 4 stopes by strike length 55m; Across strike is stayed studding between stope and between panel, and studding width 3-4m stays regular point post according to steady of roof in stope, stays 12m fore-set simultaneously; Multilayer ore body can be exploited simultaneously, guarantees levels ore body studding and puts post in vertical non-alignment; Adopt arteries and veins external lower disk development layout form; Arrange segmentation drift at lower floor's ore body lower wall across pitch, arrange and wear arteries and veins ore removal connection road, be convenient to scraper and enter slicing working face; Arrange rockhole, sensible transport of water paperback ore deposit Chuan Mai at panel medium position; Tiltedly go up a hill at the every 530m layout of segmentation tunnel lower wall return air along orebody trend, UNICOM's top tailgate; In the middle part of correspondingly between two adjacent return air are gone up a hill, segmentation formation air intake is gone up a hill from bottom to top, both coordinate, and formation exploiting field is entered, return air channel, enter stope at stope middle part by segmentation main line digging ore removal connection road, when ore removal connection road is dug in each segmentation for the first time, dig to ore body base plate by 18% the gradient downwards, level is dug to upper strata ore body roof afterwards, afterwards along with the decline of sublayer, bear down on one along ore removal connection road, form the ore removal passage of next layering; In each layer of ore body base plate arteries and veins, dug cutting gallery by ore removal route to stope end, then along the ore body incline direction digging stope return air top segment level of going up a hill, dig afterwards return air and join road and upper segmentation main line UNICOM along the pulse; 4 stopes in panel, by the arrangement of the process procedure such as rock drilling, ore removal, carry out rock drilling, explosion, roof control in 2 stopes; 1 stope carries out ore removal operation; 1 stope is adopted standard, and by standard extent calculation, rock drilling, ore removal and slicing and filling cycle are 35 days, and stoping operation is launched by first layer cutting gallery, slicing height 5.2m; Adopt driving chassis AXERAD05 type along orebody trend Drilling lateral aperture, aperture φ 60mm, hole depth 3m, W=1.0m-1.2m, a=1.2m-1.4m; Adopt BQF-100 explosive loader to join mobile platform dress 2# rock dynamite, the Nonel detonator detonates; Lean ore body and receive residual employing YT-28 rock drill and coordinate; After explosion is ventilated, carry out top board nursery work, first adopt sled anchor chassis to carry out top board float stone, turquoise cleaning, then look top board situation, adopt rock bolting jumbo to reinforce top board, adopt pipe-seam type anchor rod Strengthening Roof, anchor pole spacing 1.0 × 1.0m, length is greater than 1.5m, and Area cracked adopts anchor net to reinforce; Adopt 3m3Diesel LHD ore removal, averge distance carried is at 155m, scraper efficiency 700t/d-800t/d; Lean ore body and receive residual employing 2m3Scraper coordinates; Freshly distinguished and admirablely enter stope mining face by segmentation drift, dirty wind is gone up a hill and is returned back out, enters upper segment section main line by the return air that is arranged on stope end, entering exploiting field return air by return air connection road goes up a hill, enter again mine return air system, the return air connection road of going up a hill in the inherent top of stope arranges JK55-No4 portable blower, make stope secondary ventilation, each slicing is complete, enters the circulation of back production next time.
Embodiment 3
Across pitch long 200m in panel in the first step, tendency plagioclase is controlled by 20m height of lift, in panel, is divided into 4 stopes by strike length 50m; Across strike is stayed studding between stope and between panel, and studding width 3 ~ 4m stays regular point post according to steady of roof in stope, stays 10m fore-set simultaneously; In the 3rd step, tiltedly go up a hill at the every 500m layout of segmentation tunnel lower wall return air along orebody trend; Rock drilling in the 4th step, ore removal and slicing and filling cycle are 30 days, and stoping operation is launched by first layer cutting gallery, slicing height 5.0m; The 5th step: adopt driving chassis along orebody trend Drilling lateral aperture, aperture φ 56mm. All the other steps are as embodiment 1.
Claims (7)
1. a mechanization point pillar house column mining method, is characterized in that comprising the following steps: stope layout, stopping sequence, adopt accurate cutting, back production, rock drilling, roof control, ore removal, ventilation, be specially:
The first step: stope is arranged: panel and stope are arranged and inscape: panel across pitch is arranged, the long 180 ~ 220m of panel across pitch, tendency plagioclase is controlled by 18 ~ 22m height of lift, in panel, is divided into 4 stopes by strike length 45 ~ 55m; Across strike is stayed studding between stope and between panel, and studding width 3 ~ 4m stays regular point post according to steady of roof in stope, stays 8 ~ 12m fore-set simultaneously;
Second step: stopping sequence: multilayer ore body is exploited simultaneously, guarantees levels ore body studding and puts post in vertical non-alignment;
The 3rd step: adopt accurate cutting: adopt arteries and veins external lower disk development layout form; Arrange segmentation drift at lower floor's ore body lower wall across pitch, arrange and wear arteries and veins ore removal connection road, be convenient to scraper and enter slicing working face; Arrange rockhole, sensible transport of water paperback ore deposit Chuan Mai at panel medium position; Tiltedly go up a hill at the every 480 ~ 530m layout of segmentation tunnel lower wall return air along orebody trend, UNICOM's top tailgate; In the middle part of correspondingly between two adjacent return air are gone up a hill, segmentation formation air intake is gone up a hill from bottom to top, both coordinate, and formation exploiting field is entered, return air channel, enter stope at stope middle part by segmentation main line digging ore removal connection road, when ore removal connection road is dug in each segmentation for the first time, dig to ore body base plate by 15% ~ 18% the gradient downwards, level is dug to upper strata ore body roof afterwards, afterwards along with the decline of sublayer, bear down on one along ore removal connection road, form the ore removal passage of next layering; In each layer of ore body base plate arteries and veins, dug cutting gallery by ore removal route to stope end, then along the ore body incline direction digging stope return air top segment level of going up a hill, dig afterwards return air and join road and upper segmentation main line UNICOM along the pulse;
The 4th step: back production: 4 stopes in panel, arrange by rock drilling, ore removal process procedure, in 2 stopes, carry out rock drilling, explosion, roof control; 1 stope carries out ore removal operation; 1 stope is adopted standard, and by standard extent calculation, rock drilling, ore removal and slicing and filling cycle are 28 ~ 35 days, and stoping operation is launched by first layer cutting gallery, slicing height 4.8 ~ 5.2m;
The 5th step: rock drilling: adopt driving chassis along orebody trend Drilling lateral aperture, aperture φ 56mm, hole depth 3m, W=1.0m ~ 1.2m, a=1.2m ~ 1.4m; Adopt BQF ~ 100 explosive loader to join mobile platform dress 2# rock dynamite, the Nonel detonator detonates; Lean ore body and receive residual employing yt28 rock drill and coordinate;
The 6th step: roof control: after explosion is ventilated, carry out top board nursery work, first adopt sled anchor chassis to carry out top board float stone, turquoise cleaning, then look top board situation, adopt rock bolting jumbo to reinforce top board, adopt pipe-seam type anchor rod Strengthening Roof, anchor pole spacing 1.0 × 1.0m, length is greater than 1.5m, and Area cracked adopts anchor net to reinforce;
The 7th step: ore removal: adopt 3m3Diesel LHD ore removal, averge distance carried is at 145 ~ 155m, scraper efficiency 700t/d ~ 800t/d; Lean ore body and receive residual employing 2m3Scraper coordinates;
The 8th step: ventilate: freshly distinguished and admirablely enter stope mining face by segmentation drift, dirty wind is gone up a hill and is returned back out, enters upper segment section main line by the return air that is arranged on stope end, entering exploiting field return air by return air connection road goes up a hill, enter again mine return air system, the return air connection road of going up a hill in the inherent top of stope arranges JK55 ~ No4 portable blower, make stope secondary ventilation, each slicing is complete, enters the circulation of back production next time.
2. mechanization point pillar house column mining method according to claim 1, is characterized in that described multilayer ore body is three layers of middle thickness orebody, accompanies one deck horsestone between any two.
3. mechanization point pillar house column mining method according to claim 1, is characterized in that a post specification is 3 × 3m, some intercolumniation 10～13m.
4. mechanization point pillar house column mining method according to claim 1, is characterized in that described driving chassis is Boomer281 type or AXERAD05 type.
5. mechanization point pillar house column mining method according to claim 1, is characterized in that across pitch long 200m in panel in the first step, and tendency plagioclase is controlled by 20m height of lift, in panel, is divided into 4 stopes by strike length 50m; Across strike is stayed studding between stope and between panel, and studding width 3 ~ 4m stays regular point post according to steady of roof in stope, stays 10m fore-set simultaneously.
6. mechanization point pillar house column mining method according to claim 1, is characterized in that tiltedly going up a hill at the every 500m layout of segmentation tunnel lower wall return air along orebody trend in the 3rd step.
7. mechanization point pillar house column mining method according to claim 1, is characterized in that slicing height 5m in the 4th step.
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| CN105201511A (en) * | 2015-10-16 | 2015-12-30 | 广西大学 | Collaborative mining method for common ore storage section with multi-branch draw shafts in stopes arranged in stepped manner |
| CN110374601B (en) * | 2019-07-25 | 2020-06-02 | 长沙矿山研究院有限责任公司 | Safe and efficient mining method for steeply inclined double-layer ore body |
| CN110886613A (en) * | 2019-11-22 | 2020-03-17 | 西北矿冶研究院 | Mechanized continuous hard rock mining method |
| CN113605894A (en) * | 2021-08-27 | 2021-11-05 | 湖南有色黄沙坪矿业有限公司 | Non-coal mine pillar-free wall type filling mining method |
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| EP2539542B1 (en) * | 2010-02-22 | 2019-04-10 | Technological Resources Pty Limited | Underground mining |
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| CN101881169A (en) * | 2010-06-25 | 2010-11-10 | 东北大学 | Sublevel shrinkage caving stage open stope afterwards filling mining method |
| CN103147760A (en) * | 2013-03-15 | 2013-06-12 | 金川集团股份有限公司 | Large-scale horizontal jamb mining method under existence of bottom caving group occurrence |
| CN103967494A (en) * | 2014-04-21 | 2014-08-06 | 安徽大昌矿业集团有限公司 | Mining method for filling after shallow hole shrinkage |
| CN103982186A (en) * | 2014-06-10 | 2014-08-13 | 山东黄金矿业(莱州)有限公司三山岛金矿 | Bottom-pillar-free retreating vertical inclined strip sublevel caving mining method |
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