CN108756885A - A kind of high-dipping ore block that ore-rock is smashed to pieces it is lower to or on to consolidated fill mechanized mining method - Google Patents
A kind of high-dipping ore block that ore-rock is smashed to pieces it is lower to or on to consolidated fill mechanized mining method Download PDFInfo
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- CN108756885A CN108756885A CN201810456348.XA CN201810456348A CN108756885A CN 108756885 A CN108756885 A CN 108756885A CN 201810456348 A CN201810456348 A CN 201810456348A CN 108756885 A CN108756885 A CN 108756885A
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- 238000005065 mining Methods 0.000 title claims abstract description 45
- 239000011435 rock Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000007598 dipping method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 238000004880 explosion Methods 0.000 claims abstract description 6
- 239000004576 sand Substances 0.000 claims abstract description 4
- 230000005641 tunneling Effects 0.000 claims abstract description 3
- 230000002787 reinforcement Effects 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000000178 monomer Substances 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000010790 dilution Methods 0.000 abstract description 4
- 239000012895 dilution Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/02—Supporting means, e.g. shuttering, for filling-up materials
- E21F15/04—Stowing mats; Goaf wire netting; Partition walls
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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)
- Excavating Of Shafts Or Tunnels (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
A kind of high-dipping ore block that ore-rock is smashed to pieces it is lower to or on to consolidated fill mechanized mining method, from top to bottom or slice drift back production from bottom to top；After tunneling layered-liaison tunnel, enter ore body along layered-liaison tunnel, explosion, which is substituted, using boom-type roadheader falls mine, each layering lean ore body across pitch falls mine or big thick ore body capwise interval or sequence route falls mine, and overall height arranges route, and forklift ore removal, it is transferred to next layering, and the underhand stope under obturation top plate, or the raise mining on obturation bottom plate again after entire layering single stage or two step mining advancings and retrusive sand off；This be under (on) integrated innovation of mine is fallen to cemented filling method and fully-mechanized digging machine.This method reduces the damage to country rock because of machine breaking, the plastic wire shield top of hydraulic prop+π types beams+laying when in addition digging up mine and side, and prop drawing when filling, highly effective and safe, ore losses and the rate of dilution are low, stope flexible arrangement, it is easy to accomplish prospecting in mining.
Description
Technical field
The invention belongs to mining technique field, more particularly to a kind of high-dipping ore block that ore-rock is smashed to pieces it is lower to or on to
Consolidated fill mechanized mining method is suitable for exploitated ore and unstable rock or the only unsteady high-dipping high-grade of ore
Ore body.
Background technology
Stream gold mine before the Songxian County of Luoyang, ore body and from the surrounding rock f coefficients in ore body about 5~8m less than 4, ore-rock is extremely broken
It is broken.To when cemented filling method back production on, top plate and two is helped all easily to collapse, and not only causes damages and dilution, but also
Jeopardize mining safety, almost needs holder close to holder intensive arrangement door shape timbering shield top and side, and need advanced branch
Shield ensures that top plate ore does not collapse, and holder can not also recycle in stowing operation, and mining cost is up to 300 yuan/t, stope (route)
Day adopts ore amount less than 20t.Use depth limit instead, the back production under cementing artificial roof, although top plate ore
Inbreak is controllable, but still need holder close to holder intensive arrangement timbering wall supporting and prevent side wall collapse, in stowing operation
Timbering can not also recycle, and mining cost is also up to about 300 yuan/t, stope (route) day adopt ore amount also less than 20t.On and
To or it is lower to consolidated fill, in ore body or in surrounding rock will pole costly construct and safeguard ore pass, but lose and poor
Change good stringent control.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of high-dippinges that ore-rock is smashed to pieces
Ore body it is lower to or on to consolidated fill mechanized mining method, filling is arranged in from the lower wall stabilizing surrounding rock other than ore body 8m
Well or ore pass, spiral ramp, by layered-liaison tunnel and ramp, boom-type roadheader is from top to down or from bottom to top
Into slice drift, mining advancing ore, retrusive fills and withdraws hydraulic prop and π type beams, is dug using cantilevered
Explosion is substituted into machine and falls mine, and stoping cost is less than 80 yuan/t, and stone of digging up mine stope (route) day is up to 220t, to increase substantially
Stope (route) day mining capacity reduces mining cost.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of high-dipping ore block that ore-rock is smashed to pieces it is lower to or on to consolidated fill mechanized mining method, from top to bottom
Or slice drift back production from bottom to top；After tunneling layered-liaison tunnel, enters ore body along layered-liaison tunnel, tunneled using cantilevered
Machine substitutes explosion and falls mine, and each layering arranges that route, interval or sequence route fall mine simultaneously along orebody trend or capwise overall height
Forklift ore removal is transferred to next layering, under obturation top plate again after entire layering single stage or Two step mining and sand off
Underhand stope or the raise mining on obturation bottom plate.
Enter stope from ramp and layered-liaison tunnel using boom-type roadheader, ore body is implemented from top to bottom or under
And it is upper as follows by slicing：
To thin lode body, the across pitch advance mining in layering, single stage back production is realized in retrusive prop drawing, filling；
To big thick ore body, the capwise arrangement route (stope) in layering implements the two of interval or sequence in layering
Step back production adopts disk boundary in advance mining to ore body in back production along route, then retrusive prop drawing, filling, then is spaced
Or the exploitation of sequence route, after waiting first steps to exploit, implement the interval of second step or route that sequence back production leaves.
In recovery process, working face is all made of boom-type roadheader and falls mine, and forklift transports mine, and hydraulic prop+π types beam+
Plastic wire and local anchor pole progress supporting.
The present invention fills and withdraws with the following method pillar：
It is lower to cemented filling mining, it is complete in back production when boom-type roadheader has adopted side and moved to another side route
It is laid with filling piping in this complete side route and connects main filling system, carries out admission passage filling at twice, is filled for the first time for bottoming
It fills out, second is that route top commonly fills.Reinforced concrete vacation bottom is used when wherein first time bottoming fills, i.e., is filled in route bottoming
Packing course is laid with bar-mat reinforcement, and pillar withdraws 2-4m every time, and sets up flexible retaining wall, carries out first time filling and prevents running pulp, recycles
Operation is until admission passage filling finishes；
On to cemented filling mining, after withdrawing 2~4m pillars every time, admission passage filling is disposably completed, it is not necessary to bottom spread
If bar-mat reinforcement.
The present invention use following means of defence and withdrawn with to take precautions against pillar and mining process in lateral wall rock mass or top plate ore body collapse
Slump enters in obturation：
Desending slicing admission passage filling is first laid with plastic wire and local anchor pole wall supporting, and single before setting up hydraulic prop
Body hydraulic prop squeezes tight lateral wall as possible, to which lateral wall country rock is caving in preventing pillar from withdrawing and recovery process；
Upward slicing admission passage filling is first laid with plastic wire and local anchor pole wall supporting, top before setting up hydraulic prop,
And hydraulic prop squeezes tight lateral wall and top plate as possible, to which lateral wall country rock is caving in preventing pillar from withdrawing and mining process,
Prevent top plate ore inbreak simultaneously.
Compared with prior art, the present invention reduces the damage of the explosion to country rock because of machine breaking, single when in addition digging up mine
The plastic wire shield top of body hydraulic prop+π types beam+laying and side, prop drawing when filling, highly effective and safe, ore losses and the rate of dilution are low,
Stope flexible arrangement, it is easy to accomplish prospecting in mining.
Description of the drawings
Fig. 1 is mining methods schematic diagram of the present invention.
In figure：The upper stage casing return aircourses 1-；The upper stage casing Chuan Mai of 2-；3- fills ventilation shaft；4- bodies to be dug up mine；5- obturations；
6- drop shafts；7- filling counterforts；8- main haulages along the pulse；9- development machines；10- individual props；11- is layered connection roadway；12- points
Layer haulage drift；13- adopts quasi- ramp.
Fig. 2 is route support pattern schematic diagram.
Fig. 3 be it is lower to or on to consolidated fill mechanized mining method stereoscopic schematic diagram.
Specific implementation mode
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
With reference to figure 1, this mining methods is suitable for exploitated ore and the unsteady high-dipping of unstable rock or only ore is high
Grade ore body.Its method is：Slice drift back production from top to bottom, or to lower and higher slice drift stoping；In driving layering contact
Behind road, enter ore body along layered-liaison tunnel, substituting explosion using boom-type roadheader falls mine, each layering across pitch (lean ore body)
Or capwise (big thick ore body) overall height arranges that route, interval or sequence route fall mine and forklift ore removal, be entirely layered single stage
Or it is transferred to next layering, and the underhand stope under obturation top plate again after Two step mining and sand off, or at obturation bottom
Raise mining on plate.This be it is lower to or on fall to cemented filling method and fully-mechanized digging machine (boom-type roadheader) the integrated wound of mine
Newly.This method reduces the damage to country rock because of machine breaking, the modeling of hydraulic prop+π types beam+laying when in addition digging up mine
Material net shield top and side, prop drawing when filling, highly effective and safe, ore losses and the rate of dilution are low, stope flexible arrangement, it is easy to accomplish exploration
In conjunction with.
Specifically：
1) Migration mark of the machinery between each layering
Boom-type roadheader 9 enters stope (route) from ramp 13 and layered-liaison tunnel 11, implements certainly to thin lode body
It is upper (lower) and under (on) by slice drift back production, the across pitch advance mining body 4 to be dug up mine in route, retrusive prop drawing 10,
Pipeline obturation 5 simultaneously gradually retreats filling back production complete route and layered-liaison tunnel 11, realizes single stage back production；To thickness
Gulf, similar above-mentioned layering, and capwise arranges route, implements interval in route or the Two step mining of sequence waits adopting
Ore body 4 also adopts advance mining body 4 to be dug up mine to disk boundary on ore body, then retrusive prop drawing 10, pipe in back production along route
Road, which conveys obturation 5 and gradually retreats, fills the complete route or layered-liaison tunnel 11 of back production, then is spaced or sequence route is similar
Body 4 to be dug up mine is exploited, it is similar to fill and implement the interval of second step or sequence back production leaves after waiting first steps to exploit
Route in body to be dug up mine 4.After full extraction and filling, then under similar exploitation (on) body to be dug up mine 4 being layered.
2) 9 Migration mark of fully-mechanized digging machine, ore removal way and support pattern and supporting side pressure, top pressure apply foundation and mode
Referring to figs. 2 and 3, working face is all made of boom-type roadheader 9 and falls mine, forklift ore removal, hydraulic prop 10+ π
Type beam 14 carries out supporting.After forklift machine fills mine immediately following boom-type roadheader 9, transported along layered-liaison tunnel 11 and layering haulage drift 12
Mine is unloaded to drop shaft 6, mine car is transported to cage vertical shaft and is promoted to day mineral after 6 bottom discharging of drop shaft, then along main haulage roadway 8 along the pulse
Storehouse.
3) fill and withdraw 10 mode of pillar
Referring to figs. 2 and 3, lower to cemented filling mining, it has adopted side in boom-type roadheader 9 and has moved to another side route
When, it is laid with the main filling system of filling piping connection in this side route that back production finishes, carries out admission passage filling at twice, the
It is once filled for bottoming, second is that route top commonly fills.To improve the globality for the Man-made False that lower leaf is exploited, the
Reinforced concrete vacation bottom is used when bottoming fills, i.e., is laid with bar-mat reinforcement in route bottoming filling layer, pillar withdraws two~tetra- every time
Rice, and set up flexible retaining wall 7, carry out first time filling and prevent running pulp, such cycle operation is until admission passage filling finishes.On to
Cemented filling mining withdraws two~tetra- meters of pillars 10 every time, and after setting up flexible retaining wall 7, and admission passage filling can be completed disposably,
It need not be laid with bar-mat reinforcement in bottom.
4) pillar 10 takes precautions against lateral wall rock mass when withdrawing and collapses the protection method fallen into obturation 5
Referring to figs. 2 and 3, Desending slicing admission passage filling, lateral wall country rock is caving when to prevent pillar 10 from withdrawing, single setting up
Before body hydraulic prop 10, it is first laid with plastic wire and local anchor pole wall supporting, and hydraulic prop 10 squeezes tight lateral wall as possible.On to
Slice drift fill, lateral wall country rock is caving when not only preventing pillar 10 from withdrawing, will also anti-top plate ore inbreak, therefore, in frame
If before hydraulic prop 10, being first laid with plastic wire and local anchor pole wall supporting, top, and hydraulic prop 10 squeezes tight side as possible
Side and top plate.
5) draft type of stope (route)
Implement from it is upper (lower) and under (on) by slice drift exploit, it is fresh it is distinguished and admirable along lower stage casing along vein transporting drift 8 and tiltedly
Ramp 13 enters slice drift (stope), in route exhaust fan and air duct, by boom-type roadheader 9 cut ore body and
The dust of scraper dress mineral products life drains into filling ventilation shaft 3, wears arteries and veins 2 through upper stage casing and earth's surface is discharged in upper stage casing return aircourse 1.Just
Ore pass 6 more than the layered-liaison tunnel 11 and layering main transport roadway used may be used as filling, vent (-escape) raise 3, from this
Upper blowdown wind, decentralization filling pipeline；Layered-liaison tunnel 11 currently in use and layering main transport roadway ore pass 6 below, are used
Make the ore pass 6 of ore drawing.
Claims (5)
1. a kind of high-dipping ore block that ore-rock is smashed to pieces it is lower to or on exist to consolidated fill mechanized mining method, feature
In from top to bottom or slice drift back production from bottom to top；After tunneling layered-liaison tunnel, enters ore body along layered-liaison tunnel, answer
Explosion is substituted with boom-type roadheader and falls mine, and each layering arranges route, interval or suitable along orebody trend or capwise overall height
Sequence route falls mine and forklift ore removal, is transferred to again after entire layering single stage or two step mining advancings and retrusive sand off
Next layering, underhand stope or the raise mining on obturation bottom plate under obturation top plate.
2. according to claim 1 ore-rock high-dipping ore block smashed to pieces it is lower to or on to consolidated fill mechanized mining side
Method, which is characterized in that enter stope from ramp and layered-liaison tunnel using boom-type roadheader, ore body is implemented from top to bottom
Or from bottom to top as follows by slicing：
To thin lode body, the across pitch advance mining in layering, single stage back production is realized in retrusive prop drawing, filling；
To big thick ore body, the capwise arrangement route (stope) in layering implements two steps of interval or sequence in layering
Back production is exploited along route protrusive straight line to disk boundary on ore body in back production, then retrusive prop drawing, filling, then is spaced or suitable
Sequence route is exploited, and after waiting first steps to exploit, implements the interval of second step or route that sequence back production leaves.
3. according to claim 1 ore-rock high-dipping ore block smashed to pieces it is lower to or on to consolidated fill mechanized mining side
Method, which is characterized in that in recovery process, working face is all made of boom-type roadheader and falls mine, forklift ore removal, hydraulic prop+π
Type beam+plastic wire and local anchor pole progress supporting.
4. according to claim 1 ore-rock high-dipping ore block smashed to pieces it is lower to or on to consolidated fill mechanized mining side
Method, which is characterized in that fill and withdraw with the following method pillar：
It is lower to cemented filling mining, when boom-type roadheader has adopted side and moved to another side route, finished in back production
It is laid with filling piping in this side route and connects main filling system, carries out admission passage filling at twice, is filled for the first time for bottoming, second
It is secondary commonly to be filled for route top, reinforced concrete vacation bottom is used when wherein first time bottoming fills, i.e., is spread in route bottoming filling layer
If bar-mat reinforcement；Pillar withdraws 2-4m every time, and sets up flexible retaining wall, carries out primary filling, prevents running pulp, cycle operation until into
Road filling finishes；
On to cemented filling mining, after withdrawing 2~4m pillars every time, admission passage filling is disposably completed, it is not necessary to bottom be laid with steel
Muscle net.
5. according to claim 1 ore-rock high-dipping ore block smashed to pieces it is lower to or on to consolidated fill mechanized mining side
Method, which is characterized in that use following means of defence and collapsed with to take precautions against lateral wall rock mass when pillar is withdrawn and fall into obturation：
Desending slicing admission passage filling is first laid with plastic wire and local anchor pole wall supporting, and monomer liquid before setting up hydraulic prop
Pressure pillar squeezes tight lateral wall as possible, and lateral wall country rock is caving when to prevent pillar from withdrawing；
Upward slicing admission passage filling is first laid with plastic wire and local anchor pole wall supporting, top, and single before setting up hydraulic prop
Body hydraulic prop squeezes tight lateral wall and top plate as possible, and lateral wall country rock is caving when to prevent pillar from withdrawing, while preventing top plate mine
Stone inbreak.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456348.XA CN108756885B (en) | 2018-05-14 | 2018-05-14 | downward or upward cemented filling mechanized mining method for steeply-inclined ore body with extremely-broken ore rock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810456348.XA CN108756885B (en) | 2018-05-14 | 2018-05-14 | downward or upward cemented filling mechanized mining method for steeply-inclined ore body with extremely-broken ore rock |
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| Publication Number | Publication Date |
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| CN108756885A true CN108756885A (en) | 2018-11-06 |
| CN108756885B CN108756885B (en) | 2019-12-06 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252863A (en) * | 2018-11-13 | 2019-01-22 | 湖南黄金洞矿业有限责任公司 | A method of breaking type thickness ore body is exploited using coal mine tunneling machine |
| CN110863829A (en) * | 2019-12-26 | 2020-03-06 | 安徽理工大学 | Method for mining steeply inclined coal seam by fully-mechanized excavating machine |
| CN111255459A (en) * | 2020-02-25 | 2020-06-09 | 长沙矿山研究院有限责任公司 | Combined downward mechanized filling mining method for steeply inclined extremely-broken ore vein |
| CN111894667A (en) * | 2020-08-19 | 2020-11-06 | 长沙矿山研究院有限责任公司 | Upward double-layered drift filling mining method for recoverable support shield of broken ore body |
| CN112012744A (en) * | 2020-09-18 | 2020-12-01 | 陕西华源矿业有限责任公司 | Comprehensive mechanized ore breaking layered filling mining method |
| CN112360463A (en) * | 2021-01-13 | 2021-02-12 | 矿冶科技集团有限公司 | Mechanical mining method for thick and large ore body development machine |
| CN112943292A (en) * | 2021-03-03 | 2021-06-11 | 中铁四局集团有限公司 | Circle shape inclined shaft construction structures suitable for coastal waters downtown area secretly digs subway station |
| CN113107588A (en) * | 2021-05-28 | 2021-07-13 | 金川镍钴研究设计院有限责任公司 | Construction method of layered connecting road by downward layered cemented filling mining method |
| CN113719287A (en) * | 2021-09-02 | 2021-11-30 | 北京科技大学 | Downward access filling mining method for complex broken ore body |
| CN114687739A (en) * | 2022-03-28 | 2022-07-01 | 长沙矿山研究院有限责任公司 | Upward horizontal layered filling mining method with non-explosive mechanical rock breaking arranged perpendicular to trend |
| CN115030723A (en) * | 2022-03-28 | 2022-09-09 | 长沙矿山研究院有限责任公司 | Non-explosive mechanical rock breaking two-step turn-back type access filling mining method |
| 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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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252863A (en) * | 2018-11-13 | 2019-01-22 | 湖南黄金洞矿业有限责任公司 | A method of breaking type thickness ore body is exploited using coal mine tunneling machine |
| CN110863829A (en) * | 2019-12-26 | 2020-03-06 | 安徽理工大学 | Method for mining steeply inclined coal seam by fully-mechanized excavating machine |
| CN111255459A (en) * | 2020-02-25 | 2020-06-09 | 长沙矿山研究院有限责任公司 | Combined downward mechanized filling mining method for steeply inclined extremely-broken ore vein |
| CN111255459B (en) * | 2020-02-25 | 2020-11-17 | 长沙矿山研究院有限责任公司 | Combined downward mechanized filling mining method for steeply inclined extremely-broken ore vein |
| CN111894667A (en) * | 2020-08-19 | 2020-11-06 | 长沙矿山研究院有限责任公司 | Upward double-layered drift filling mining method for recoverable support shield of broken ore body |
| CN112012744A (en) * | 2020-09-18 | 2020-12-01 | 陕西华源矿业有限责任公司 | Comprehensive mechanized ore breaking layered filling mining method |
| CN112360463A (en) * | 2021-01-13 | 2021-02-12 | 矿冶科技集团有限公司 | Mechanical mining method for thick and large ore body development machine |
| CN112943292A (en) * | 2021-03-03 | 2021-06-11 | 中铁四局集团有限公司 | Circle shape inclined shaft construction structures suitable for coastal waters downtown area secretly digs subway station |
| CN113107588A (en) * | 2021-05-28 | 2021-07-13 | 金川镍钴研究设计院有限责任公司 | Construction method of layered connecting road by downward layered cemented filling mining method |
| CN113719287A (en) * | 2021-09-02 | 2021-11-30 | 北京科技大学 | Downward access filling mining method for complex broken ore body |
| CN113719287B (en) * | 2021-09-02 | 2022-09-30 | 北京科技大学 | Downward access filling mining method for complex broken ore body |
| CN114687739A (en) * | 2022-03-28 | 2022-07-01 | 长沙矿山研究院有限责任公司 | Upward horizontal layered filling mining method with non-explosive mechanical rock breaking arranged perpendicular to trend |
| CN115030723A (en) * | 2022-03-28 | 2022-09-09 | 长沙矿山研究院有限责任公司 | Non-explosive mechanical rock breaking two-step turn-back type access filling mining method |
| 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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