CN106437717B - Ore drawing synchronizes packing stage mining codes to vertical long hole twice - Google Patents
Ore drawing synchronizes packing stage mining codes to vertical long hole twice Download PDFInfo
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- CN106437717B CN106437717B CN201611059708.XA CN201611059708A CN106437717B CN 106437717 B CN106437717 B CN 106437717B CN 201611059708 A CN201611059708 A CN 201611059708A CN 106437717 B CN106437717 B CN 106437717B
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- silk screen
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- 238000005065 mining Methods 0.000 title claims abstract description 19
- 238000012856 packing Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 229920002635 polyurethane Polymers 0.000 claims abstract description 18
- 239000004814 polyurethane Substances 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 16
- 239000011435 rock Substances 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 238000004880 explosion Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 15
- 239000010410 layer Substances 0.000 description 14
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 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
Landscapes
- 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)
- Combined Means For Separation Of Solids (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a kind of vertical long hole, ore drawing synchronizes packing stage mining codes twice.Ore body across strike is divided into the stage, across pitch arranges back production unit.Drilling chamber is formed by stage section bottom structure in back production, realizes the full recycling of back production unit mine amount.Shipment tunnel is dug from this stage lower wall transportation roadway and reaches back production unit bottom, forms moat ditch formula bottom structure.In the detachable steel column of drilling chamber both ends parallel arrangement, for fixing polyurethane steel silk screen.Polyurethane steel silk screen is first moved to detachable steel top end and is close to drilling chamber top rock mass, vertical medium-length hole is then dug under the protection of polyurethane steel silk screen.Mine is fallen using two separate explosion of layered charge, then polyurethane steel silk screen is moved to detachable steel column bottom covering ore, a large amount of ore drawings.Implement synchronous filling by separation layer of polyurethane steel silk screen simultaneously.It is cementing using slip casing by pressure progress barren rock after ore removal and sand off, condition is provided adjacent to back production unit for back production, realizes the full recycling of Ore Body amount.The present invention has the characteristics that high-efficient, at low cost, safety is good, poor damage index is excellent.
Description
Technical field
The invention belongs to mining technique field, in particular to a kind of mining methods.
Background technique
As deposit mining depth continues to increase, high-ground stress has seriously affected the stabilization of stope with the problems such as exploitation disturbance
Property.Meanwhile ground settlement caused by Goaf Area seriously destroys ecological environment, brings a series of problems to mining area.By
In the increasingly stringent of ecological protection, the advantage of open stope afterwards filling mining method is highlighted.Open stope afterwards filling mining method is effective
The advantage of open-stope method and filling method is combined, can guarantee production safety again by production ore to greatest extent, while can also have
Effect slows down ground settlement, and the application in mine is more and more wider.
But substantially still a kind of openstope method persists open stope afterwards filling mining method due to filling not in time
Dead zone may cause the avalanche of country rock.The ore body bad for stability and country rock can only reduce the size of mineral building to meet
Safety condition, but this can sacrifice the production capacity in mine to a certain extent, and increase and adopt quasi- cutting intensity.And synchronize filling skill
The introducing of art then can effectively control goaf exposed area.In conjunction with the advantages of synchronous filling technique, propose a kind of vertical
Ore drawing synchronizes packing stage mining codes to deep hole twice.This method both can efficiently, low consumption extracted ore, and mine can be effectively reduced
The stone rate of dilution, loss late, for the safety in production in mine, environmental protection also important role.
Summary of the invention
It is an object of that present invention to provide a kind of vertical long hole, ore drawing synchronizes packing stage mining codes twice.
In order to achieve the above objectives, as follows using technical solution:
Ore drawing synchronizes packing stage mining codes to vertical long hole twice, comprising the following steps:
1) ore body across strike is divided into the stage, across pitch arranges back production unit；
2) in each this stage of stage lower disposed lower wall haulage drift, from lower wall haulage drift of upper stage through shipping tunnel
Moat of upper stage ditch formula bottom structure is reached, this stage drilling chamber is formed by back production section bottom structure；In drilling chamber two
End installs detachable steel column and carrys out supporting roof, installs detachable polyurethane steel silk screen in detachable steel column upper end, prevents from digging
Rock chamber top plate portion is fallen；Shipment tunnel is dug by this stage lower wall haulage drift and reaches mineral building bottom, by undercuting, expanding leakage shape
At moat ditch formula bottom structure；
3) it bores vertical parallel blasthole downwards from drilling chamber, using two separate explosion ore drawings, is constructed before second of ore caving corresponding
Compensation space；Polyurethane steel silk screen is put down after ore drawing, is laid on mine heap, and separation layer is formed；
4) ore removal simultaneously fills above separation layer simultaneously below the back production unit of ore drawing；By the way of one stop panel,
It is separated by after back production unit has filled after two and exploits intermediate back production unit again.
According to the above scheme, using the fixed polyurethane steel silk screen of detachable steel column, guarantee that separation layer is smooth and move down.
According to the above scheme, filling materials select adopt cutting as when the barren rock that generates；After barren rock is full of goaf, using pressure
Slip casting forms cemented fill.
The structure for simplifying back production unit, without staying top pillar；When exploiting next stage, stage foundation and shape can be recycled
At drilling chamber, realize that back production unit ore recycles entirely；Back production unit goaf country rock slabbing problem is overcome, it is effective to control
The exposed area in goaf.Efficient, low consumption extracted ore is realized, and ore dilution rate, loss late can be effectively reduced, for
The safety in production in mine, environmental protection also important role.
The present invention compared with the existing technology, has an effect as follows:
Back production cellular construction is simplified, transform moat ditch formula bottom structure of upper stage as drilling chamber, effective back production bottom
Column, without staying top pillar.Meanwhile filling material synchronizes and helps clean up the residual mine in bottom when falling, and improves the rate of extraction.
Reasonable employment polyurethane steel silk screen is both used as safeguard structure, but also as separation layer, it is possible to reduce filling material is mixed into
Ore reduces the rate of dilution of ore.
Using detachable steel column, roof stability both can protect, can be also used for fixed polyurethane steel silk screen.
Using " one stop panel " extraction system, the complete recycling of continuous exploitation and back production unit is realized.
The high feature of block chambering method production efficiency has been given full play to, introducing synchronous filling technique realizes Earth pres-sure control,
It maintains goaf to stablize, is conducive to ecological environment.
Detailed description of the invention
Fig. 1: ore drawing synchronizes packing stage mining codes to vertical long hole of the present invention twice；
I-I line profile in Fig. 2: Fig. 1；
II-II line profile in Fig. 3: Fig. 1；
Fig. 4: blasthole and layered charge structure chart.
Wherein, 1- filling material, 2- drilling chamber, 3- separation layer, 4- polyurethane steel silk screen, 5- wait for quick-fried ore, 6- blasthole, 7-
Detachable steel column, 8- moat ditch formula bottom structure, quick-fried ore, 10- back production unit, 11- compensation space, 12- ship tunnel to 9-,
13- country rock, the upper stage lower wall haulage drift of 14-, 15- this stage lower wall haulage drift, 16- sand, 17- explosive, 18- stopper,
19- cement plug.
Specific embodiment
Following embodiment further illustrates technical solution of the present invention, but not as limiting the scope of the invention.
The synchronous packing stage mining codes of ore drawing, process are following (referring to Fig.1,2,3,4) twice for vertical long hole:
By ore body across strike divide the stage, across pitch arrange back production unit 10, as shown in figure 1 back production unit A, B, C, D, E, F,
G.Back production unit 10 is highly generally orebody thickness, and 10 height of back production unit takes 55m, and 10 length of back production unit is 40m, back production list
First 10 width are 10m.
Arrange that this stage lower wall haulage drift 15, heading sizes are 4m × 4m in each stage.It is transported by lower wall of upper stage
Tunnel 14 passes through country rock 13 through shipment tunnel 12 and reaches moat of upper stage ditch formula bottom structure 8, wherein two adjacent shipment tunnels 12
Distance be 10m, shipment tunnel length be 10m, sectional dimension be 3m × 3m.Pass through 8 shape of back production part moat ditch formula bottom structure
Cost stage drilling chamber 2, wherein the high 4m of drilling chamber, length are 2m bigger than back production unit 10.Then at chamber both ends, installation can
7 supporting roof of detachable steel column installs polyurethane steel silk screen 4 using fixed device on detachable 7 top of steel column, prevents chamber
Top plate portion is fallen.Shipment tunnel 12 is dug by this stage lower wall haulage drift 15 and reaches 10 bottom of back production unit, by undercuting, expanding
Leakage forms moat ditch formula bottom structure 8, produces quick-fried ore 9, the high 6m of foundation from this.
Vertical parallel blasthole 6 is bored downwards from drilling chamber 2, and blasthole diameter 165mm, pitch-row, array pitch are 4m.Blasthole is adopted
With layered charge, every layer height 5m, totally 8 layers, explosion in two times.As shown in B in Fig. 4, bottom uses cement when first layer powder charge
Plug 19 is fixed, reserves the airspace 1.5m.16 stemming length of sand of bottom is 0.5m, and the length of explosive 17 is 1m, top
16 stemming length of sand is 2m.Interlayer is used as using stopper 18 among the second layer and first layer, other structures are identical as first layer.
First separate explosion ore drawing should persist part ore before terminating, goaf stability be safeguarded, as shown in back production unit E in figure one.
The compensation space 11 that should have before second of ore caving and be adapted to quick-fried ore 5, makes Caved orebody full of goaf.The
After secondary blasting, the fixation device of detachable steel column 7 and polyurethane steel silk screen 4 is dismantled, polyurethane steel silk screen 4 is transferred and is laid with
On mine heap, separation layer 3 is formed, as shown in figure 1 shown in back production unit C.
It is using scraper that filling material 1 is equal using the uniform ore removal of scraper, while in upper stage lower wall haulage drift 14
It is even to be laid on separation layer 3, and using the fixed polyurethane steel silk screen 4 of detachable steel column 7, guarantee that separation layer 3 is smooth and moves down.It is logical
Adjustment filling rate and ore drawing rate are crossed, can control the exposed area of country rock 13, gives full play to the maintenance effect of filling material 1,
Until ore removal terminates, as shown in back production unit A in figure one.
The barren rock adopted and generated when cutting is made including digging parallel space can be selected in filling material 1.After full of goaf, use
Slip casing by pressure forms cemented fill.Using " one stop panel " mining method, after back production unit A and C consolidated fill is complete, continue
Exploit back production unit B.
Claims (3)
1. ore drawing synchronizes packing stage mining codes to vertical long hole twice, it is characterised in that the following steps are included:
1) ore body across strike is divided into the stage, across pitch arranges back production unit；
2) it in each this stage of stage lower disposed lower wall haulage drift, is reached from lower wall haulage drift of upper stage through shipment tunnel
Upper stage moat ditch formula bottom structure forms this stage drilling chamber by back production section bottom structure；Pacify at drilling chamber both ends
It fills detachable steel column and carrys out supporting roof, detachable polyurethane steel silk screen is installed in detachable steel column upper end, prevents drilling chamber
Top plate filling material is fallen；Shipment tunnel is dug by this stage lower wall haulage drift and reaches mineral building bottom, forms moat by undercuting, expanding leakage
Ditch formula bottom structure；
3) it bores vertical parallel blasthole downwards from drilling chamber, using two separate explosion ore drawings, constructs corresponding compensation before second of ore caving
Space；Polyurethane steel silk screen is put down after ore drawing, is laid on mine heap, and separation layer is formed；
4) ore removal simultaneously fills above separation layer simultaneously below the back production unit of ore drawing；By the way of one stop panel, to two
It is a be separated by after back production unit has filled exploit intermediate back production unit again.
2. ore drawing synchronizes packing stage mining codes to vertical long hole as described in claim 1 twice, it is characterised in that using detachably
Formula steel column fixes polyurethane steel silk screen, guarantees that separation layer is smooth and moves down.
3. ore drawing synchronizes packing stage mining codes to vertical long hole as described in claim 1 twice, it is characterised in that filling material is selected
Adopt cutting as when the barren rock that generates；After barren rock is full of goaf, cemented fill is formed using slip casing by pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059708.XA CN106437717B (en) | 2016-11-21 | 2016-11-21 | Ore drawing synchronizes packing stage mining codes to vertical long hole twice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611059708.XA CN106437717B (en) | 2016-11-21 | 2016-11-21 | Ore drawing synchronizes packing stage mining codes to vertical long hole twice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106437717A CN106437717A (en) | 2017-02-22 |
| CN106437717B true CN106437717B (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611059708.XA Active CN106437717B (en) | 2016-11-21 | 2016-11-21 | Ore drawing synchronizes packing stage mining codes to vertical long hole twice |
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| Country | Link |
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| CN113236246B (en) * | 2021-05-21 | 2024-05-24 | 中煤第七十一工程处有限责任公司 | Method for deep hole extrusion blasting slot pulling in underground mine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932241A (en) * | 2006-09-30 | 2007-03-21 | 长沙矿山研究院 | Panel unloading high-layering filling mining method |
| RU2475647C2 (en) * | 2011-05-20 | 2013-02-20 | Юрий Абрамович Дик | Mining method of thick steep ore bodies |
| CN102953732A (en) * | 2011-08-17 | 2013-03-06 | 彭康 | Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method |
| CN103032070A (en) * | 2011-10-09 | 2013-04-10 | 彭康 | Boundary-controlled room column type sublevel open stoping subsequent stage filling mining method |
| CN104533517A (en) * | 2015-01-16 | 2015-04-22 | 中南大学 | High-segmentation upward deep hole ore extraction zero-dead-zone following filling mining method |
| CN105927224A (en) * | 2016-05-27 | 2016-09-07 | 武汉理工大学 | Gob-free ore discharging and filling synchronized milling method for thick ore body |
-
2016
- 2016-11-21 CN CN201611059708.XA patent/CN106437717B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1932241A (en) * | 2006-09-30 | 2007-03-21 | 长沙矿山研究院 | Panel unloading high-layering filling mining method |
| RU2475647C2 (en) * | 2011-05-20 | 2013-02-20 | Юрий Абрамович Дик | Mining method of thick steep ore bodies |
| CN102953732A (en) * | 2011-08-17 | 2013-03-06 | 彭康 | Room-and-pillar major-diameter longhole inverted-step-like segmented lateral caving subsequent filling mining method |
| CN103032070A (en) * | 2011-10-09 | 2013-04-10 | 彭康 | Boundary-controlled room column type sublevel open stoping subsequent stage filling mining method |
| CN104533517A (en) * | 2015-01-16 | 2015-04-22 | 中南大学 | High-segmentation upward deep hole ore extraction zero-dead-zone following filling mining method |
| CN105927224A (en) * | 2016-05-27 | 2016-09-07 | 武汉理工大学 | Gob-free ore discharging and filling synchronized milling method for thick ore body |
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| Publication number | Publication date |
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| CN106437717A (en) | 2017-02-22 |
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