CN108005657A - Mining method for group/group of included stone-included steeply-inclined thin veins - Google Patents
Mining method for group/group of included stone-included steeply-inclined thin veins Download PDFInfo
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- CN108005657A CN108005657A CN201711206641.2A CN201711206641A CN108005657A CN 108005657 A CN108005657 A CN 108005657A CN 201711206641 A CN201711206641 A CN 201711206641A CN 108005657 A CN108005657 A CN 108005657A
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- ore
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- horsestone
- veins
- mining
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention belongs to the technical field of underground mining methods, and discloses a mining method of a steep dip thin vein group/group containing stones, wherein the method takes the steep dip thin vein group/group and a stone layer as a complete ore body, divides the ore body into ore blocks, carries out layered mining on the ore blocks, adopts the stone layer from the upper part to a shallow hole in the ore blocks, and discharges caving waste stones from an artificial ore pass in the vein; then, mining ore vein groups/groups by using horizontal blast holes, and paving the collapsed ores as a stoping operation platform to continue operation; repeating the steps until the ore is mined to the bottom pillar of the upper middle section, and performing a large amount of ore drawing after the ore block is mined. The process characteristics of the invention integrate the advantages of the shrinkage mining method, the cut wall filling mining method and the tunnel type mining method, can recover the ore to the maximum extent, and solves the defects of the single mining method; the mining efficiency can be greatly improved.
Description
Technical field
The present invention relates to underground mining method technical field, and in particular to and a kind of group of steep narrow veins containing horsestone/group
Recovery method.
Background technology
Steep narrow veins are often referred to inclination angle more than 50 °, and orebody thickness is less than the ore body of 5m, comprehensive coloured, yellow both at home and abroad
Gold, uranium mine experience with mining, steep narrow veins exploitation uses shallow hole shrinkage method, medium-length hole sublevel open stope method and Nitrate uptake
Three kinds of mining methods of method, wherein：Shallow hole shrinkage method is medium firm above suitable for ore-rock, and more than mineral ore thickness 2m, inclination angle is more than
50 ° of orebody mining prevented from caking；When orebody thickness is less than 1.5m（Minimum cannot be less than 0.8m）When, more using Nitrate uptake
Method；Mineral ore thickness then selects sublevel open stope method in the ore body of 5m or so.But the form of steep narrow veins is ever-changing,
Ore body is in " arteries and veins group " shape output, and the phenomenon containing multilayer horsestone is commonplace in mineral ore group/group, at this moment mechanical according to ore body thickness
The way that degree applies mechanically certain mining methods is unworkable, it is necessary to according to Ore body morphology, neatly creates new mining methods.
The content of the invention
The purpose of the present invention is to solve existing steep narrow veins form is changeable, contains multilayer in mineral ore group/group
The problem of horsestone exploitation is difficult, there is provided it is a kind of exploit the flexible group of steep narrow veins containing horsestone/group recovery method.
In order to achieve the above object, the present invention uses following technical scheme：A kind of group of steep narrow veins containing horsestone/group
Recovery method, comprises the following steps：
1）Divide block structure parameter：It is nugget by ore body division, the high 45-80m of nugget, the wide 60-100m of nugget；Stay and set in nugget
Foundation and studding, foundation thickness 5-10m, the wide 2-5m of studding；
2) quasi- cutting is adopted:Phase of boring transportation roadway first, afterwards by transportation roadway in stage transportation roadway driving hypomere arteries and veins, in nugget
Transportation roadway in the studding driving supreme stage casing arteries and veins of way shaft of both sides；In way shaft connecting taxiway is tunneled every the height of 3-5m；It is logical
Cross connecting taxiway and drawing chute is dug in foundation, the space between drawing chute and body to be dug up mine is empty as body to be dug up mine cutting
Between, compensating space in blasting is provided for actual mining, and set up artificial drop shaft；
3）First time back production ore removal：This layering working space is entered by connecting taxiway by way shaft, country rock is first adopted, stands and spreading
On next layering ore layer top after flat, pad, pressed from both sides in this layering horsestone goaf on Drilling to a layering in shallow bore hole avalanche
Stone, avalanche barren rock artificial drop shaft out of arteries and veins are released；After lengthening artificial drop shaft, then next layering ore deposit after having paved, having padded of standing
On rock layers top, Drilling horizontal shallow hole avalanche this layering ore in this layering horsestone goaf.After this layering ore avalanche, if ore deposit
Horsestone content is less than 20%, then after releasing a small amount of broken ores in arteries and veins group, and remaining most of broken ore is paved, and is laid with soft
Property pad after as stoping operation platform continue operation；If horsestone content is between 20%-35% in mineral ore group, by whole avalanches
Ore is paved, and is laid with after flexible liner and is continued operation as stoping operation platform；If horsestone content is more than 35% in mineral ore group,
A part of ore then is supplemented by filling well in arteries and veins, supplement ore and whole broken ores are paved, and after being laid with flexible liner
Continue operation as stoping operation platform, so repeatedly until nugget top；
4）Second of back production ore removal：The rock drilling in transportation roadway in upper stage casing arteries and veins, the mineral ore part in an avalanche in the foundation of stage casing, is stayed
Lower dirt band is not adopted, afterwards a large amount of ore removals of stope, releases whole ores, and when ore drawing will sink down into the leakage of drawing chute using iron hook
The flexible liner of quarrel, which is ticked, can carry out ore drawing.
Further, artificial drop shaft is the drop shaft of sliceable metal tub material.
Further, fill pass is dug in the nugget of stope nugget center.
Further, the ore body is the group of steep narrow veins containing horsestone/group of ore-rock clear-cut.
The present invention a kind of exploitation flexibly the group of steep narrow veins containing horsestone/group recovery method, by releasing avalanche
After barren rock, broken ore, and stoping operation is carried out by job platform of the broken ore after leveling, place mat, after mining, most
After the advantages of carrying out a large amount of ore drawing process synthesis shrinkage stoping, scarps filling mining method, Heading method method, can be maximum
The recycling ore of amount, and avoid barren rock from being mixed into, the deficiency for solving single mining methods；The present invention is at the same time by steep narrow veins
The thinking that group/group and dirt band are regarded as a complete ore body can greatly improve mining efficiency.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the side view of the present invention.
Reference numeral implication is as follows：1. foundation；2. studding；3. stage transportation roadway；4. transportation roadway in hypomere arteries and veins；5.
Way shaft；Transportation roadway in the arteries and veins of stage casing on 6.；7. connecting taxiway；8. drawing chute；9. artificial drop shaft；10. fill pass；
11. broken ore；12. flexible liner；13. horsestone goaf；To shallow bore hole on 14.；15. horizontal shallow hole；Stage casing on 16.
Foundation.
Embodiment
Northwest tungsten deposit is Wolframite, and for ore body again there are in quartzite, ore-rock boundary naked eyes are distinguishable（Ore body is black
Color, quartzite are white）, ore body is high-dipping ore block, 55 ° -75 ° of inclination angle；Ore body is in stratiform output, and thickness change is complicated.Portion
Point group of mineral ore containing interlayer using a kind of group of steep narrow veins containing horsestone of the present invention/group recovery method, stope production
Ability is about 45-55t/d.
The invention will be further described with reference to the accompanying drawings and detailed description.
As shown in Figs. 1-2, the group of steep narrow veins containing horsestone of the invention/group recovery method the ore deposit specific implementation
Mode is：
Block structure parameter：It is nugget by ore body division, the high 45-80m of nugget, the wide 60-100m of nugget；Stayed in nugget and set foundation 1
With studding 2, the thickness 5-10m of foundation 1, the width of studding 2 2-5m；
Adopt quasi- cutting engineering：Transportation roadway 4 in arteries and veins are tunneled by stage transportation roadway 3 first, studding 2 tunnels way shaft in nugget both sides
Transportation roadway 6 in 5 supreme stage casing arteries and veins；In way shaft 5 connecting taxiway 7 is highly tunneled every 3-5m；By connecting taxiway 7, in foundation 1
Drawing chute 8 is dug, the space between drawing chute 8 and body to be dug up mine is used as body cutting room to be dug up mine, and is carried for actual mining
For compensating space in blasting；Artificial drop shaft 9 is set up, artificial drop shaft 10 is sliceable metal tub material；If necessary, in stope center
Digging fill pass 10 in mineral ore.
First time back production ore removal engineering：This layering working space is entered by connecting taxiway 9 by way shaft 7, first adopts country rock,
Stand on next layering ore layer top after having paved, having padded, collapsed in this layering horsestone goaf 13 on Drilling to shallow bore hole 14
Fall upper layering horsestone, avalanche barren rock artificial drop shaft 9 out of arteries and veins is released；After lengthening artificial drop shaft 9, then stand and paving, padding
On next layering ore layer top afterwards, 15 avalanche this layering ore of Drilling horizontal shallow hole, ore deposit in this layering horsestone goaf 13
Horsestone content paves whole broken ores 11 between 20%-35% in arteries and veins group, and makees after being laid with flexible liner 12 as back production
Industry platform continues operation.So repeatedly until nugget top.
Second of back production ore removal engineering：The rock drilling in transportation roadway 6 in upper stage casing arteries and veins, the ore deposit in an avalanche in stage casing foundation 16
Arteries and veins part, leaves dirt band and does not adopt, afterwards a large amount of ore removals of stope, releases whole ores.
In use, pay special attention to：A kind of group of steep narrow veins containing horsestone recovery method is needed using iron hook etc. by under
The flexible liner 12 for being sink to bell mouth is ticked and can carry out ore drawing.
Claims (4)
1. a kind of group of steep narrow veins containing horsestone/group recovery method, it is characterized in that, comprise the following steps：
1）Divide block structure parameter：It is nugget by ore body division, the high 45-80m of nugget, the wide 60-100m of nugget；Stay and set in nugget
Foundation（1）And studding（2）, foundation（1）Thick 5-10m, studding（2）Wide 2-5m；
2) quasi- cutting is adopted:Phase of boring transportation roadway first（3）, afterwards by stage transportation roadway（3）Tunnel transportation roadway in hypomere arteries and veins
（4）, in nugget both sides studding（2）Tunnel way shaft（5）Transportation roadway in supreme stage casing arteries and veins（6）；In way shaft（5）Every 3-
The height driving connecting taxiway of 5m（7）；Pass through connecting taxiway（7）In foundation（1）Middle digging drawing chute（8）, drawing chute（8）With treating
Cutting room of the space as body to be dug up mine between mining body, compensating space in blasting is provided for actual mining；And set up artificial
Drop shaft（9）；
3）First time back production ore removal：By way shaft（5）Pass through connecting taxiway（7）Into this layering working space, country rock is first adopted, is stood
On next layering ore layer top after having paved, having padded, in this layering horsestone goaf（13）To shallow bore hole on middle Drilling（14）
A layering horsestone, avalanche barren rock artificial drop shaft out of arteries and veins in avalanche（9）Release；Lengthen artificial drop shaft（9）Afterwards, then stand and spreading
On next layering ore layer top after flat, pad, in this layering horsestone goaf（13）Middle Drilling horizontal shallow hole（15）Avalanche sheet
It is layered ore；
This layering ore collapse it is lower after, if in mineral ore group horsestone content be less than 20%, release a small amount of broken ores（11）Afterwards, will be surplus
Remaining major part broken ore（11）Pave, and be laid with flexible liner（12）Continue operation as stoping operation platform afterwards；If mineral ore
Horsestone content is between 20%-35% in group, then by whole broken ores（11）Pave, and be laid with flexible liner（12）It is used as back afterwards
Adopt job platform and continue operation；If horsestone content is more than 35% in mineral ore group, by filling well in arteries and veins（9）Supplement a part of ore deposit
Stone, by supplement ore and whole broken ores（11）Pave, and be laid with flexible liner（12）Continue afterwards as stoping operation platform
Operation, so repeatedly until nugget top；
4）Second of back production ore removal：The transportation roadway in upper stage casing arteries and veins（6）Interior rock drilling, stage casing foundation in an avalanche（16）In mineral ore
Part, leaves dirt band and does not adopt, afterwards a large amount of ore removals of stope, releases whole ores, will sink down into ore drawing using iron hook during ore drawing
Funnel（8）Bell mouth flexible liner（12）Ore drawing can be carried out by ticking.
2. a kind of group of steep narrow veins containing horsestone according to claim 1/group recovery method, it is characterized in that：It is described
Artificial drop shaft（9）For the drop shaft of sliceable metal tub material.
3. a kind of group of steep narrow veins containing horsestone according to claim 1/group recovery method, it is characterized in that：It is described
Step 2）In dig fill pass in the nugget of stope center（10）.
4. a kind of group of steep narrow veins containing horsestone according to claim 1/group recovery method, it is characterized in that：It is described
Ore body is the group of steep narrow veins containing horsestone/group of ore-rock clear-cut.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711206641.2A CN108005657B (en) | 2017-11-27 | 2017-11-27 | Mining method for group/group of included stone-included steeply-inclined thin veins |
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| CN201711206641.2A CN108005657B (en) | 2017-11-27 | 2017-11-27 | Mining method for group/group of included stone-included steeply-inclined thin veins |
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| CN108005657A true CN108005657A (en) | 2018-05-08 |
| CN108005657B CN108005657B (en) | 2019-09-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339784A (en) * | 2018-11-16 | 2019-02-15 | 西北矿冶研究院 | Separate mining combined caving method suitable for adjacent ore bodies |
| CN110905514A (en) * | 2019-11-23 | 2020-03-24 | 南宁学院 | Multi-layer inclined ore body ore waste separation and collaborative mining method |
| CN111878162A (en) * | 2020-05-27 | 2020-11-03 | 中南大学 | Mine underground leakage filling mortar storage facility and dredging and pollution discharge method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339784A (en) * | 2018-11-16 | 2019-02-15 | 西北矿冶研究院 | Separate mining combined caving method suitable for adjacent ore bodies |
| CN110905514A (en) * | 2019-11-23 | 2020-03-24 | 南宁学院 | Multi-layer inclined ore body ore waste separation and collaborative mining method |
| CN111878162A (en) * | 2020-05-27 | 2020-11-03 | 中南大学 | Mine underground leakage filling mortar storage facility and dredging and pollution discharge method |
| CN111878162B (en) * | 2020-05-27 | 2023-05-09 | 中南大学 | Dredging and pollution discharging method for underground mine leakage filling mortar storage facility |
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| CN108005657B (en) | 2019-09-20 |
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