CN108756880B - A kind of high-dipping is crushed thin lode body boom-type roadheader recovery method - Google Patents
A kind of high-dipping is crushed thin lode body boom-type roadheader recovery method Download PDFInfo
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- CN108756880B CN108756880B CN201810600129.4A CN201810600129A CN108756880B CN 108756880 B CN108756880 B CN 108756880B CN 201810600129 A CN201810600129 A CN 201810600129A CN 108756880 B CN108756880 B CN 108756880B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- 238000007598 dipping method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 29
- 230000011218 segmentation Effects 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 4
- 210000001367 artery Anatomy 0.000 claims description 5
- 210000003462 vein Anatomy 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 230000032258 transport Effects 0.000 claims 3
- 238000005065 mining Methods 0.000 abstract description 8
- 238000013467 fragmentation Methods 0.000 abstract description 3
- 238000006062 fragmentation reaction Methods 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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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
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- 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
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of high-dipping is crushed thin lode body boom-type roadheader recovery method, belong to orebody mining field, can solve that inclination angle is larger, mine fragmentation, thinner thickness ore body fall mine, ganger skill falls behind, roadway support is difficult, and resource recovery is low, back production and fills unmatched problem.Nugget is arranged along orebody trend, arranges filling returnairshaft along ore body inclined direction in nugget center；3 ~ 4 segmentations, 12 ~ 15m of height of lift, each subsection setup 3 ~ 4 layerings are arranged along ore body vertical direction.It is layered two sides and arranges slicing tunnel, boom-type roadheader enters layering from ore body center, carries out slicing roadway support using hydraulic prop+π type beam.Advance mining is used in slicing tunnel, after separate zone production and sand off, into next stratified operation, until entire block stoping finishes.The safe and efficient mechanization back production that high-dipping is crushed thin lode body can be achieved in the present invention.
Description
Technical field
The invention belongs to orebody mining technical fields, and in particular to a kind of high-dipping is crushed thin lode body boom-type roadheader
Recovery method.
Background technique
China's metallic mineral resources are very rich, and wherein most belongs to (urgency) inclination hard rock ore body, orebody thickness etc..
According to its good occurrence condition, a variety of mining methods are derived, have achieved good effect, falling miner's skill is that rock drilling is quick-fried
Broken mode.And, the ore body of mine fragmentation, thinner thickness larger for relative inclination, exploitation difficulty are big, resources loss rate is high.
This kind of orebody mining generallys use shrinkage method or filling method, falls mine, ganger skill falls behind, roadway support difficulty, resource recovery
The problems such as low, back production and filling mismatch, seriously restricts the effective use of resource and the sustainable development of exploitation enterprise.Cause
This, how safe and efficient such ore body of exploitation is a urgent problem to be solved.
Summary of the invention
The present invention for inclination angle it is larger, mine fragmentation, thinner thickness ore body fall mine, ganger skill fall behind, roadway support
Difficulty, resource recovery is low, back production and fills unmatched problem, provides a kind of high-dipping and is crushed thin lode body cantilevered driving
Machine recovery method.
The present invention adopts the following technical scheme:
A kind of high-dipping is crushed thin lode body boom-type roadheader recovery method, includes the following steps:
The first step, roadway layout
Ore body lower wall arranges 1 main haulage along the pulse in production zone, arranges 3 ~ 4 segmentations along ore body vertical direction
Quasi- ramp, each fragmented transport roadway layout are adopted in haulage drift, 1 each fragmented transport tunnel of connection of ore body lower wall arrangement
Slicing tunnel is arranged in 3 ~ 4 separate zone production tunnels, separate zone production tunnel two sides.Nugget is arranged along orebody trend, in nugget
Filling returnairshaft is arranged along ore body inclined direction in center, and a Stope chute is arranged outside nugget central base sheet arteries and veins.
Second step, exploitation
A. boom-type roadheader self demixing exploitation tunnel enters on the right side of nugget, first time feed, feed 2 ~ 5m of width, so
It keeps linear advancement to nugget boundary afterwards, digs first slicing tunnel；
B. during boom-type roadheader linear advancement, every 1 ~ 2m of drilling depth carries out once supporting, using monomer hydraulic branch
The support pattern of column+π type beam, 0.8 ~ 1.0m of supporting spacing；
C. boom-type roadheader exit right side slicing tunnel, into adjacent other side carry out operation, repeat a,
B step completes left side slicing tunnel and exploits work；
D. boom-type roadheader is in the operation of left side slicing tunnel, in the right side slicing that back production finishes
It is laid with filling piping in tunnel and connects main filling system, 2 progress of slicing tunnel filling point；1st time is bottoming filling, is filled
Raising 1 ~ 2m of degree, 28 days uniaxial compressive strengths of prime coat obturation require 4 ~ 5MPa；2nd time common for slicing tunnel top
Filling, slicing tunnel top 28 days intensity of common obturation must be controlled in 1.6 ~ 3.5MPa；
E. hydraulic prop+π type beam often withdraws 2 ~ 4m of distance, carries out 1 filling operation, and cycle operation is until layering
Stope drift active workings filling is completed.After separate zone production and sand off, into next stratified operation, next separate zone production is under obturation
Operation is exploited until entire substoping is finished into next segmentation, and so circulation is until entire block stoping finishes.
Inclination angle≤15 ° of quasi- ramp are adopted described in the first step.
The length of slicing tunnel described in the first step is less than 100m, and it is highly 3 ~ 5m that width, which is 2 ~ 5m,.
Separate zone production head-room described in the first step is 3 ~ 5m.
Beneficial effects of the present invention are as follows:
The present invention gets up boom-type roadheader mechanical mining and consolidated fill reasonable combination, and it is thin to realize that high-dipping is crushed
The safe and efficient mechanization back production of lode body.Roadway layout of the present invention is scientific and reasonable, compact arrangement of equipment is continuous, cantilevered pick
Mine, supporting, filling procedure are fallen into machine to be rationally effectively connected, and are that a kind of comparatively ideal high-dipping is crushed thin arteries and veins orebody mining side
Method.
Main advantages of the present invention:
1. realizing that mechanization falls mine, the destruction that explosion falls mine to country rock is effectively prevented；
2. back production and filling parallel operations, are independent of each other；
3. not staying top () column between segmentation (layer), the rate of recovery of resource is improved；
4. mechanization is realized in roadway support, reusable, reduce the use of mine timber, reduces mining cost.
Detailed description of the invention
Fig. 1 is recovery method diagrammatic cross-section of the invention；
Fig. 2 is the B-B direction cross-sectional view of Fig. 1；
Fig. 3 is the C-C of Fig. 2 to cross-sectional view；
Fig. 4 is drift support type schematic front view of the invention；
Fig. 5 is drift support type schematic top plan view of the invention；
Wherein: the upper middle section return aircourse 1-；2- wears arteries and veins；3- fills returnairshaft；4- body to be dug up mine；5- obturation；6- drop shaft；
7- filling counterfort；8- main haulage along the pulse；9- boom-type roadheader；10- hydraulic prop；11- separate zone production tunnel；
12- fragmented transport tunnel；13- adopts quasi- ramp；14- slicing tunnel；15- π type beam.
Specific embodiment
A kind of high-dipping is crushed thin lode body boom-type roadheader recovery method, includes the following steps:
The first step, roadway layout
Ore body lower wall arranges 1 main haulage along the pulse in production zone, arranges 3 ~ 4 segmentations along ore body vertical direction
Quasi- ramp, each fragmented transport roadway layout are adopted in haulage drift, 1 each fragmented transport tunnel of connection of ore body lower wall arrangement
Slicing tunnel is arranged in 3 ~ 4 separate zone production tunnels, separate zone production tunnel two sides, nugget is arranged along orebody trend, in nugget
Filling returnairshaft is arranged along ore body inclined direction in center, and a Stope chute is arranged outside nugget central base sheet arteries and veins.
Second step, exploitation
A. boom-type roadheader self demixing exploitation tunnel enters on the right side of nugget, first time feed, feed 2 ~ 5m of width, so
It keeps linear advancement to nugget boundary afterwards, digs first slicing tunnel；
B. during boom-type roadheader linear advancement, every 1 ~ 2m of drilling depth carries out once supporting, using monomer hydraulic branch
The support pattern of column+π type beam, 0.8 ~ 1.0m of supporting spacing；
C. boom-type roadheader exit right side slicing tunnel, into adjacent other side carry out operation, repeat a,
B step completes left side slicing tunnel and exploits work；
D. boom-type roadheader is in the operation of left side slicing tunnel, in the right side slicing that back production finishes
It is laid with filling piping in tunnel and connects main filling system, 2 progress of slicing tunnel filling point；1st time is bottoming filling, is filled
Raising 1 ~ 2m of degree, 28 days uniaxial compressive strengths of prime coat obturation require 4 ~ 5MPa；2nd time common for slicing tunnel top
Filling, slicing tunnel top 28 days intensity of common obturation must be controlled in 1.6 ~ 3.5MPa；
E. hydraulic prop+π type beam often withdraws 2 ~ 4m of distance, carries out 1 filling operation, and cycle operation is until tunnel
Filling is completed.After separate zone production and sand off, into next stratified operation, next separate zone production operation under obturation, directly
It finishes to entire substoping, is exploited into next segmentation, so circulation is until entire block stoping finishes.
Inclination angle≤15 ° of quasi- ramp are adopted described in the first step.
The length of slicing tunnel described in the first step is less than 100m, and it is highly 3 ~ 5m that width, which is 2 ~ 5m,.
Separate zone production head-room described in the first step is 3-5m.
Fragmented transport head-room described in the first step is 12 ~ 15m.
Thin lode body with a thickness of 2 ~ 5m, inclination angle is greater than 45 °, credit rating IV.
Working face transport courses: boom-type roadheader falls mine, dress mine to scraper to drop shaft to vertical shaft skip or inclined shaft skin
Band is transported to washing workshop.
Fill transportation process: ground Filling Station to main filling well to stage filling piping to working face filling returnairshaft is extremely
Working face.
Coordinative composition of equipments
Working face is all made of boom-type roadheader and scraper carries out falling mine and transport, using hydraulic prop+π type
Beam carries out supporting.
Face-airing
Working face uses local fan ventilation mode, fresh distinguished and admirable route: earth's surface to ramp to fragmented transport tunnel to layering
Tunnel is exploited to working face；Waste air route: working face to the filling supreme stage return aircourse of returnairshaft to main ventilating shaft to earth's surface.
Claims (4)
1. a kind of high-dipping is crushed thin lode body boom-type roadheader recovery method, characterized by the following steps:
The first step, roadway layout
Ore body lower wall arranges 1 main haulage along the pulse in production zone, arranges 3 ~ 4 fragmented transports along ore body vertical direction
Quasi- ramp, each fragmented transport roadway layout 3 ~ 4 are adopted in tunnel, 1 each fragmented transport tunnel of connection of ore body lower wall arrangement
Slicing tunnel is arranged in a separate zone production tunnel, separate zone production tunnel two sides；
Nugget is arranged along orebody trend, filling returnairshaft is arranged along ore body inclined direction in nugget center, in nugget central base sheet
A Stope chute is arranged outside arteries and veins；
Second step, exploitation
A. boom-type roadheader self demixing exploitation tunnel enters on the right side of nugget, then first time feed, feed 2 ~ 5m of width is protected
Linear advancement is held to nugget boundary, digs first slicing tunnel；
B. during boom-type roadheader linear advancement, every 1 ~ 2m of drilling depth carries out once supporting, using hydraulic prop+π
The support pattern of type beam, 0.8 ~ 1.0m of supporting spacing；
C. boom-type roadheader exits the slicing tunnel on right side, carries out operation into adjacent other side, repeats a, b step
Suddenly, it completes left side slicing tunnel and exploits work；
D. boom-type roadheader is in the operation of left side slicing tunnel, in the right side slicing tunnel that back production finishes
Interior laying filling piping connects main filling system, 2 progress of slicing tunnel filling point；1st time is bottoming filling, and filling is high
1 ~ 2m is spent, 28 days uniaxial compressive strengths of prime coat obturation require 4 ~ 5MPa；2nd time is that slicing tunnel top is commonly filled
It fills out, slicing tunnel top 28 days intensity of common obturation must be controlled in 1.6 ~ 3.5MPa；
E. hydraulic prop+π type beam often withdraws 2 ~ 4m of distance, carries out 1 filling operation, and cycle operation is until slicing
Tunnel filling is completed,
After separate zone production and sand off, into next stratified operation, next separate zone production operation under obturation, until entire
Substoping finishes, and exploits into next segmentation, and so circulation is until entire block stoping finishes.
2. a kind of high-dipping according to claim 1 is crushed thin lode body boom-type roadheader recovery method, feature exists
In: inclination angle≤15 ° of quasi- ramp are adopted described in the first step.
3. a kind of high-dipping according to claim 1 is crushed thin lode body boom-type roadheader recovery method, feature exists
In: the length of slicing tunnel described in the first step is less than 100m, and it is highly 3 ~ 5m that width, which is 2 ~ 5m,.
4. a kind of high-dipping according to claim 1 is crushed thin lode body boom-type roadheader recovery method, feature exists
In: separate zone production head-room described in the first step is 3 ~ 5m.
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| CN111894667B (en) * | 2020-08-19 | 2021-05-07 | 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 |
| CN112360463B (en) * | 2021-01-13 | 2024-11-01 | 矿冶科技集团有限公司 | Mechanical mining method of thick and large ore body heading machine |
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