CN109505606A - A kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods - Google Patents
A kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods Download PDFInfo
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- CN109505606A CN109505606A CN201910013977.XA CN201910013977A CN109505606A CN 109505606 A CN109505606 A CN 109505606A CN 201910013977 A CN201910013977 A CN 201910013977A CN 109505606 A CN109505606 A CN 109505606A
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- 238000005065 mining Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 36
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 38
- 239000011707 mineral Substances 0.000 claims abstract description 38
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000004880 explosion Methods 0.000 claims abstract description 11
- 238000005422 blasting Methods 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 20
- 239000011435 rock Substances 0.000 claims description 20
- 238000010276 construction Methods 0.000 claims description 14
- 210000001367 artery Anatomy 0.000 claims description 12
- 210000003462 vein Anatomy 0.000 claims description 12
- 230000011218 segmentation Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011378 shotcrete Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000018109 developmental process Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 2
- 238000010790 dilution Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
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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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention belongs to underground mining technical fields, are related to a kind of Underground Mining Methods, and in particular to a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods.The present invention uses afterwards filling, and mining filling is independent of each other, simple process；First mineral building two is helped using presplit blasting to vertical long and medium hole drilling blasting method using lower, then carry out by row, segment blast, reduce influence of the explosion to adjacent ore pillar；Drilling drift carries out roof timbering, prevents roof collapse from smashing fortune mine equipment.This mining methods in mechanization to sublevel fill stoping method compared with, reduce ton mine cost, mining efficiency improves, and production cost is substantially reduced；Loss and dilution is small, and ore recovery ratio is up to 91.3%, solves the problems, such as mining efficiency, safety and the cost of the more firm difficulty mining bed of underground mine.
Description
Technical field:
The invention belongs to underground mining technical fields, are related to a kind of Underground Mining Methods, and in particular to a kind of
Pre-control roof mechanization sublevel open stoping afterwards filling mining methods.
Background technique:
Mining methods have central role in solving difficulty mining bed mining problem, and other technologies are realization mining methods
Target provide support.Wherein filling mining method due to have many advantages, such as high stoping rate, operation safety, protection topographical surface feature,
It is used widely in underground mine.Mechanization Upward drift is mainly used for less firm difficulty mining bed at present
Or it is lower to admission passage filling method, a small number of underground mines use mechanization upward sublevel filling method.It is filled to lower to route on and
It is low to fill out method mining efficiency, it is at high cost；Upward sublevel filling method is because adopting, filling alternately, so mining efficiency is relatively low,
And adopt cut it is relatively high.Therefore, it is necessary to solve all generally existing low efficiency of the less firm difficulty mining bed of ore, at high cost is asked
Topic.
Summary of the invention:
The present invention provides a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods, solves underground mine more less
The problem of mining efficiency of firm difficulty mining bed, safety and cost.
The technical solution that the present invention solves technical problem is as follows:
A kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods, this method specifically includes the following steps:
1) nugget is divided into a middle section in two neighboring middle section development work, then middle section is divided into several segmentations,
Top pillar is not stayed in each segmentation；Arrange that stope, stope are divided into several adjacent mineral buildings and ore pillar along perpendicular to orebody trend；
2) it carries out adopting quasi- engineering construction, it includes that ore removal joins lane and discharging tunnel, ore body in disk arteries and veins on ore body that this, which adopts quasi- engineering,
Disk arteries and veins outslope road on disk and ore body on rock drilling connection lane and ore body in lower wall arteries and veins；
3) drilling drift and discharging tunnel driving are carried out respectively to mineral building, top plate carries out shotcrete rock bolt wire mesh support；Drilling drift
Shotcrete rock bolt wire mesh support is carried out to its face after the completion；After the completion of discharging tunnel construction, adopted between drilling drift and discharging tunnel
Cutting well is formed at well technology with medium-length hole blasting and expands grooving；
4) mineral building back production is carried out to vertical long and medium hole drilling explosion using lower, mineral building two is helped to carry out presplit blasting first,
Then using by row, segment blast, be aerated after explosion；Remote control fortune forklift joins lane Jiang Kuang by discharging tunnel and ore removal
Stone is transported to drop shaft concentrating mining；After the completion of mineral building back production, mineral building is filled using filling material；
5) after the obturation that mineral building fills completion and is formed reaches prescribed strength, step 3) operation is used to ore pillar, so
Afterwards by row, segment blast carry out back production, be aerated after explosion；Remote control fortune forklift joins lane by discharging tunnel and ore removal will
Ore is transported to drop shaft concentrating mining；After the completion of pillar recovery, bottom and upper layer filling are successively carried out to ore pillar using filling material.
Further, every section of height of lift is 10~15m, and mineral building width is 6~10m, length is orebody thickness.
Further, disk is disposed with downcast, ore body lower wall arrangement filling returnairshaft on the ore body；Fresh wind when ventilation
Stream enters mineral building through ore removal connection lane from downcast, and waste air is after rock drilling connection lane enters the upper middle section return aircourse of filling returnairshaft arrival
Discharge.
Further, the drilling drift driving stops construction when discharging tunnel highwall horizontal distance 5m；It is described go out
Stop construction when mine tunnelling 5m.
Further, the drilling drift is identical with the specifications section of discharging tunnel, wide and high respectively 6m and 3.5m；
The length of the channel section and wide respectively 6m and 2.5m.
Further, the filling material of the mineral building is cementing material and crude tailings mixture, is matched as 1:8；The ore pillar
The filling material on bottom and upper layer is cementing material and crude tailings mixture, and proportion is respectively 1:20 and 1:12.
Compared with the prior art, the invention has the following beneficial effects: the present invention uses afterwards filling, mining filling is mutual not
It influences, simple process；First mineral building two is helped to vertical long and medium hole drilling blasting method to use presplit blasting using lower, is then carried out
By row and segment blast, influence of the explosion to adjacent ore pillar is reduced；Drilling drift carries out roof timbering, prevents roof collapse from smashing
Transport mine equipment.This mining methods in mechanization to sublevel fill stoping method compared with, reduce ton mine cost, mining efficiency improve, production
Cost is substantially reduced；Loss and dilution is small, and ore recovery ratio is up to 91.3%, solves the more firm difficulty mining bed of underground mine
Mining efficiency, safety and the problem of cost.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and specific embodiments:
Fig. 1 is the main view in the present invention；
Fig. 2 is the A-A cross-sectional view in Fig. 1；
Fig. 3 is the B-B cross-sectional view in Fig. 1；
Fig. 4 is the drilling drift structural schematic diagram in the present invention；
Fig. 5 is the axially vertical cross-sectional view of mineral building after filling in the present embodiment；
Fig. 6 is the layout drawing of pre- ceasma and main armament hole in the present embodiment.
Figure label is as follows: 1- drop shaft；2- ore body；3- rock drilling joins lane；4- ore removal joins lane；5- mineral building；6- ore pillar；7- cutting
Well；8- obturation；9- fills returnairshaft；10- downcast；11- ramp connecting taxiway；12- ramp；13- filling counterfort；14-
Filling pipe；15- filling material；Disk on 16- ore body；17- ore body lower wall；The development work of the middle section 18-；19- discharging tunnel；20- rock drilling
Tunnel；21- main armament hole；The pre- ceasma of 22-.
Specific embodiment
Embodiment 1
As shown in Figures 1 to 6, a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods, this method are specifically wrapped
Include following steps:
1) nugget is divided into a middle section in two neighboring middle section development work 18, then middle section is divided into several points
Top pillar is not stayed in section, each segmentation；Arrangement stope is moved towards along perpendicular to ore body 2, stope is divided into several adjacent mineral buildings 5 and ore pillar 6；
Wherein every section of height of lift is 10~15m and 5 width of mineral building is 6~10m, length is 2 thickness of ore body；
2) it carrying out adopting quasi- engineering construction, it includes that ore removal joins lane 4 and discharging tunnel 19 in 16 arteries and veins of disk on ore body that this, which adopts quasi- engineering,
17 arteries and veins outslope road 12 of disk on disk 16 and ore body on rock drilling connection lane 3 and ore body in 17 arteries and veins of ore body lower wall；
It is as follows specifically to adopt quasi- engineering: 17 being respectively disposed with a ramp 12 outside disk 16 and ore body lower wall arteries and veins on ore body, it should
Ramp 12 joins lane 3 and ore removal connection lane 4 with rock drilling and is connected to by ramp connecting taxiway 11；Ore removal is arranged in 16 arteries and veins of disk on ore body
Join lane 4 and discharging tunnel 19, arranges that rock drilling joins lane 3 in 17 arteries and veins of ore body lower wall, downcast 10 is set to disk 16 on ore body, it will
Filling returnairshaft 9 is set to ore body lower wall 17.
3) it carries out drilling drift 20 respectively to mineral building 5 and discharging tunnel 19 tunnels, in the top plate shot anchor net of drilling drift 20
Then supporting carries out shotcrete rock bolt wire mesh support to face；After the completion of discharging tunnel 19 is constructed, in drilling drift 20 and discharging tunnel 19
Between cutting tunneled at well technology using medium-length hole blasting well 7 and expand grooving；
The drilling drift 20 driving stops construction when 19 highwall horizontal distance 5m of discharging tunnel；Discharging tunnel 19 tunnels
Stop construction when 5m.The drilling drift 20 is identical with the specifications section of discharging tunnel 19, wide and high respectively 6m and 3.5m.
The length of the channel section and wide respectively 6m and 2.5m.
4) 5 back production of mineral building is carried out to vertical long hole driling explosion using lower, presplit blasting is used to 5 liang of mineral building sides first,
Then using by row, segment blast, be aerated after explosion；Remote control fortune forklift joins lane 4 by discharging tunnel 19 and ore removal
Ore is transported to 1 concentrating mining of drop shaft；After the completion of 5 back production of mineral building, mineral building 5 is filled using filling material 15；
5) when mineral building 5 fills completion and the obturation 8 formed reaches prescribed strength, step 3) operation is used to ore pillar 6,
Using it is lower to vertical medium-length hole carry out rock drilling, by row, segment blast carry out back production, be aerated after explosion；Remote control fortune shovel
Vehicle joins lane 4 by discharging tunnel 19 and ore removal and ore is transported to 1 concentrating mining of drop shaft；After the completion of 6 back production of ore pillar, using filling material
15 pairs of ore pillars 6 successively carry out bottom and upper layer filling.
In this implementation, presplit blasting in step 4): in 5 liang of mineral building sides and the pre- ceasma 22 of upper disk end Drilling, the presplitting
22 aperture of hole is not greater than 0.3m away from highwall and pre- ceasma 22 must be in the same plane；It is risen before main armament hole 21 in pre- 22 hole of ceasma
It is quick-fried.
In the present embodiment, for safety assurance, when ventilation is fresh distinguished and admirable to enter mineral building 5 through ore removal connection lane 4 from downcast 10
It reaches at construction, waste air enters after filling returnairshaft 9 reaches upper middle section return aircourse through rock drilling connection lane 3 to be discharged.
In the present embodiment, 5 stowing operation of mineral building are as follows: a, filling counterfort 13 is built in discharging tunnel 19 and in mineral building 5
There are windows for 13 upper end of filling counterfort built with the junction in rock drilling connection lane 3；B, filling pipe 14 is passed through into the window and enters mine
Room 5 is filled；C, it is to be filled to away from 20 top plate 2m of drilling drift when, filling pipe 14 is fixed on and continues to fill.In mine
13 upper end of filling counterfort that the junction in room 5 and rock drilling connection lane 3 is built is there are window first is that in order to which filling pipe 14 is fixed on chisel
On the top plate in rock gangway road 20, second is that construction personnel observes filling situation for convenience.
6 stowing operation of ore pillar and 5 stowing operation of mineral building the difference is that；Bottom and upper is divided into the filling of ore pillar 6
Successively filled pipe 14 enters the formation obturation 8 of ore pillar 6 for layer filling, bottom and upper layer filling material 15.The filling material of the mineral building 5
15 be cementing material and crude tailings mixture, is matched as 1:8；The filling material 15 on 6 bottom of ore pillar and upper layer is cementing material
With crude tailings mixture, proportion is respectively 1:20 and 1:12.Proportion is bigger, and intensity is bigger, and remote control fortune forklift is avoided to carry out
Sinking for lower segmentation top surface is caused when the work of upper segmentation, guarantees construction safety.
The foregoing is merely a prefered embodiment of the invention, but scope of protection of the present invention is not limited thereto, any to be familiar with sheet
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, the scope of protection of the present invention shall be subject to the scope of protection defined by the claims.
Place is not described in detail by the present invention, is the well-known technique of those skilled in the art of the present technique.
Claims (6)
1. a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods, which is characterized in that this method specifically includes following
Step:
1) nugget is divided into a middle section in two neighboring middle section development work (18), then middle section is divided into several segmentations,
Top pillar is not stayed in each segmentation；Stope moves towards arrangement along perpendicular to ore body (2), is divided into several adjacent mineral buildings (5) and ore pillar (6)；
2) it carries out adopting quasi- engineering construction, it includes ore removal connection lane (4) and discharging tunnel in disk on ore body (16) arteries and veins that this, which adopts quasi- engineering,
(19), disk (17) arteries and veins outslope road (12) on disk (16) and ore body on rock drilling connection lane (3) and ore body in ore body lower wall (17) arteries and veins；
3) drilling drift (20) and discharging tunnel (19) driving are carried out respectively to mineral building (5), top plate carries out shotcrete rock bolt wire mesh support；Chisel
Shotcrete rock bolt wire mesh support is carried out to its face after the completion of rock gangway road (20)；After the completion of discharging tunnel (19) construction, in drilling drift
(20) cutting well (7) is formed at well technology using medium-length hole blasting between discharging tunnel (19) and expands grooving；
4) mineral building (5) back production is carried out to vertical long and medium hole drilling explosion using lower, helps progress presplitting quick-fried in mineral building (5) two first
It is broken, then using by row, segment blast, be aerated after explosion；Remote control fortune forklift passes through discharging tunnel (19) and ore removal
Join lane (4) and ore is transported to drop shaft (1) concentrating mining；After the completion of mineral building (5) back production, using filling material (15) to mineral building (5) into
Row filling；
5) after the obturation (8) that mineral building (5) fill completion and are formed reaches prescribed strength, ore pillar (6) is made using step 3)
Industry, then by row, segment blast carry out back production, be aerated after explosion；Remote control fortune forklift by discharging tunnel (19) and
Ore removal joins lane (4) and ore is transported to drop shaft (1) concentrating mining；After the completion of ore pillar (6) back production, using filling material (15) to ore pillar
(6) bottom and upper layer filling are successively carried out.
2. a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods according to claim 1, which is characterized in that
Every section of height of lift is 10~15m, and mineral building (5) width is 6~10m, and the length is ore body (2) thickness.
3. a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods according to claim 1, which is characterized in that
Disk (16) is disposed with downcast (10) on the ore body, ore body lower wall (17) arrangement filling returnairshaft (9)；It is fresh distinguished and admirable when ventilation
Enter mineral building (5) from downcast (10) through ore removal connection lane (4), waste air enters in filling returnairshaft (9) arrival through rock drilling connection lane (3)
Middle section is discharged behind return aircourse.
4. a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods according to claim 1, which is characterized in that
Drilling drift (20) driving stops construction when discharging tunnel (19) highwall horizontal distance 5m；The discharging tunnel (19)
Stop construction when tunneling 5m.
5. a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods according to claim 1, which is characterized in that
The drilling drift (20) is identical with the specifications section of discharging tunnel (19), wide and high respectively 6m and 3.5m；The slot is disconnected
The length in face and wide respectively 6m and 2.5m.
6. a kind of Pre-control roof mechanization sublevel open stoping afterwards filling mining methods according to claim 1, which is characterized in that
The filling material (15) of the mineral building (5) is cementing material and crude tailings mixture, is matched as 1:8；Ore pillar (6) bottom and upper
The filling material (15) of layer is cementing material and crude tailings mixture, and proportion is respectively 1:20 and 1:12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910013977.XA CN109505606B (en) | 2019-01-08 | 2019-01-08 | Pre-roof-control mechanized sublevel open stoping subsequent filling mining method |
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| CN201910013977.XA CN109505606B (en) | 2019-01-08 | 2019-01-08 | Pre-roof-control mechanized sublevel open stoping subsequent filling mining method |
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| CN109505606B CN109505606B (en) | 2020-11-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550248A (en) * | 2020-05-20 | 2020-08-18 | 长沙矿山研究院有限责任公司 | Pre-roof-protecting sublevel open-stoping subsequent filling mining method |
| CN113202473A (en) * | 2021-05-21 | 2021-08-03 | 中煤第七十一工程处有限责任公司 | Underground mine broken rock downward mining method |
| CN113202472A (en) * | 2021-05-21 | 2021-08-03 | 中煤第七十一工程处有限责任公司 | Underground mine subsection layering and stripping upward layering mining method |
| CN116201546A (en) * | 2023-05-06 | 2023-06-02 | 矿冶科技集团有限公司 | Method for constructing ventilation filling facilities by downward segmented open stope subsequent filling mining method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111550248A (en) * | 2020-05-20 | 2020-08-18 | 长沙矿山研究院有限责任公司 | Pre-roof-protecting sublevel open-stoping subsequent filling mining method |
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| CN113202473A (en) * | 2021-05-21 | 2021-08-03 | 中煤第七十一工程处有限责任公司 | Underground mine broken rock downward mining method |
| CN113202472A (en) * | 2021-05-21 | 2021-08-03 | 中煤第七十一工程处有限责任公司 | Underground mine subsection layering and stripping upward layering mining method |
| CN113202473B (en) * | 2021-05-21 | 2023-12-08 | 中煤第七十一工程处有限责任公司 | Underground mine broken rock downward mining method |
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| CN116201546A (en) * | 2023-05-06 | 2023-06-02 | 矿冶科技集团有限公司 | Method for constructing ventilation filling facilities by downward segmented open stope subsequent filling mining method |
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| CN109505606B (en) | 2020-11-27 |
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