CN106437717A - Vertical deep hole twice ore drawing synchronous filling stage mining method - Google Patents
Vertical deep hole twice ore drawing synchronous filling stage mining method Download PDFInfo
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- CN106437717A CN106437717A CN201611059708.XA CN201611059708A CN106437717A CN 106437717 A CN106437717 A CN 106437717A CN 201611059708 A CN201611059708 A CN 201611059708A CN 106437717 A CN106437717 A CN 106437717A
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- ore
- stage
- back production
- ore drawing
- detachable
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention discloses a vertical deep hole twice ore drawing synchronous filling stage mining method. An ore body is divided into stages along the inclination, and extraction units are distributed along the tendency. Through the extraction of a bottom structure of an upper stage part, a drilling chamber is formed, so that complete recycling of the ore quantity of the extraction units is realized. A loading and transporting roadway is driven from a transportation roadway at the footwall of a current stage to the bottom of an extraction unit, so that a trench bottom structure is formed. Detachable steel columns are distributed in parallel at the bottom end of the drilling chamber, which are used for fixing a polyurethane steel wire mesh. Firstly the polyurethane steel wire mesh is shifted to the top ends of the detachable steel columns and is close to rock mass at the top of the drilling chamber, and then a vertical medium-length hole is dug under the protection of the polyurethane steel wire mesh. Ore break by twice blasting is realized through layered charge, then the polyurethane steel wire mesh is shifted to the bottoms of the detachable steel columns, so as to cover ores, and mass ore drawing is realized. Meanwhile synchronous filling is implemented by taking the polyurethane steel wire mesh as an isolating layer. After ore drawing and filling are finished, scrap rock cementation can be performed through pressure grouting, conditions are provided for the extraction of adjacent extraction units, and complete recycling of ore bodies and ore quantity is realized. The method has the characteristics of high efficiency, low cost, good safety and good ore loss and dilution index.
Description
Technical field
The invention belongs to mining technique field, particularly to a kind of mining methods.
Background technology
Continue to increase with deposit mining depth, high-ground stress has had a strong impact on stablizing of stope with the problems such as exploiting disturbance
Property.Meanwhile, Goaf Area causes ground settlement heavy damage ecological environment, brings series of problems to mining area.By
Increasingly strict in ecological protection, the advantage of open stope afterwards filling mining method is highlighted.Open stope afterwards filling mining method is effective
Combine the advantage of open-stope method and filling method, production safety can be can guarantee that by production ore to greatest extent again, can also have simultaneously
Effect slows down ground settlement, and its application in mine is more and more wider.
But, a kind of open stope afterwards filling mining method substantially still openstope method, due to filling not in time, persist
Dead zone may cause the avalanche of country rock.For the bad ore body of steadiness and country rock, the size of mineral building can only be reduced 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 synchronization filling skill
The introducing of art then can effectively control goaf exposed area.Advantage in conjunction with synchronous filling technique is it is proposed that one kind is vertical
The deep hole packing stage mining codes of ore drawing synchronization twice.The method both can efficiently, low consumption extracted ore, and can effectively reduce ore deposit
The stone rate of dilution, loss late, for the safety in production in mine, environmental protection also important role.
Content of the invention
Present invention aim at providing a kind of vertical long hole packing stage mining codes of ore drawing synchronization twice.
For reaching above-mentioned purpose, as follows using technical scheme：
The vertical long hole packing stage mining codes of ore drawing synchronization twice, comprise the following steps：
1) ore body across strike is divided the stage, across pitch arranges back production unit；
2) in each stage lower disposed this stage lower wall haulage drift, from lower wall haulage drift of upper stage through shipping tunnel
Reach moat ditch formula polycrystalline substance of upper stage, this stage drilling chamber is formed by back production section bottom structure；In drilling chamber two
End is installed detachable steel column and is carried out supporting roof, installs detachable polyurethane steel silk screen in detachable steel column upper end, prevents from digging
Rock chamber top plate portion drops；Shipment tunnel is dug by this stage lower wall haulage drift and reaches mineral building bottom, by the leakage shape that undercuts, expands
Become moat ditch formula polycrystalline substance；
3) bore vertical parallel blasthole downwards from drilling chamber, using two separate explosion ore drawings, construct corresponding before second ore caving
Compensation space；Ore drawing puts down polyurethane steel silk screen after terminating, and is laid on ore deposit heap, forms separation layer；
4) ore removal filling above separation layer simultaneously below the back production unit of ore drawing；By the way of one stop panel,
After two be separated by back production unit filling complete after exploit middle back production unit again.
By such scheme, using the fixing polyurethane steel silk screen of detachable steel column it is ensured that separation layer is smooth moves down.
By such scheme, filling materials from adopt cut as when the barren rock that produces；After barren rock is full of goaf, using pressure
Slip casting forms cemented fill.
Simplify the structure of back production unit, fore-set need not be stayed；When exploiting next stage, stage foundation shape can be reclaimed
Become drilling chamber, realize back production unit ore and entirely reclaim；Overcome back production unit goaf country rock slabbing problem, effectively control
The exposed area in goaf.Achieve efficient, low consumption extracted ore, and can effectively reduce ore dilution rate, loss late, for
The safety in production in mine, environmental protection also important role.
The present invention, with respect to prior art, has an effect as follows：
Simplify back production cellular construction, moat ditch formula polycrystalline substance of upper stage is transform as drilling chamber, effective back production bottom
Post, need not stay fore-set.Meanwhile, casting resin helps clean up the residual ore deposit in bottom when synchronously falling, and improves the rate of extraction.
Reasonable employment polyurethane steel silk screen, both as safeguard structure, but also as separation layer, it is possible to reduce casting resin is mixed into
Ore, reduces the rate of dilution of ore.
Employ detachable steel column, both can protect roof stability, can be also used for fixing polyurethane steel silk screen.
Using " one stop panel " extraction system it is achieved that continuously exploiting the recovery completely with back production unit.
Give full play to the high feature of block chambering method production efficiency, introduced synchronous filling technique and achieve Earth pres-sure control,
Maintain goaf stable, be conducive to ecological environment.
Brief description
Fig. 1：The vertical long hole of the present invention packing stage mining codes of ore drawing synchronization twice；
Fig. 2：I-I line profile in Fig. 1；
Fig. 3：II-II line profile in Fig. 1；
Fig. 4：Blasthole and layered charge structure chart.
Wherein, 1- casting resin, 2- drilling chamber, 3- separation layer, 4- polyurethane steel silk screen, 5- treats quick-fried ore, 6- blasthole, 7-
Detachable steel column, 8- moat ditch formula polycrystalline substance, the quick-fried ore of 9-, 10- back production unit, 11- compensation space, 12- ships tunnel,
13- country rock, 14- lower wall haulage drift of upper stage, 15- this stage lower wall haulage drift, 16- sand, 17- explosive, 18- stopper,
19- cement plug.
Specific embodiment
Following examples explain technical scheme further, but not as limiting the scope of the invention.
The vertical long hole packing stage mining codes of ore drawing synchronization twice, process following (with reference to Fig. 1,2,3,4)：
Ore body across strike is divided the stage, across pitch arranges back production unit 10, back production unit A in such as Fig. 1, B, C, D, E, F,
G.Back production unit 10 height is generally orebody thickness, and back production unit 10 height takes 55m, and back production unit 10 length is 40m, back production list
First 10 width are 10m.
Arrange this stage lower wall haulage drift 15 in each stage, heading sizes are 4m × 4m.Transported by lower wall of upper stage
Tunnel 14 can reach moat ditch formula polycrystalline substance of upper stage 8, wherein two adjacent shipment tunnels 12 through shipment tunnel 12 through country rock 13
Distance be 10m, shipment tunnel length is 10m, and sectional dimension is 3m × 3m.By back production part moat ditch formula polycrystalline substance 8 shape
Cost stage drilling chamber 2, the wherein high 4m of drilling chamber, length 2m bigger than back production unit 10.Then installing at chamber two ends can
Detachable steel column 7 supporting roof, adopts fixing device to install polyurethane steel silk screen 4 on detachable steel column 7 top, prevents chamber
Top plate portion drops.Shipment tunnel 12 is dug by this stage lower wall haulage drift 15 and reaches back production unit 10 bottom, by undercuting, expanding
Leakage forms moat ditch formula polycrystalline substance 8, produces quick-fried ore 9, the high 6m of foundation from this.
Bore downwards vertical parallel blasthole 6 from drilling chamber 2, blasthole diameter is 165mm, and pitch-row, array pitch are 4m.Blasthole is adopted
With layered charge, every layer height 5m, totally 8 layers, explosion at twice.As shown in B in Fig. 4, during ground floor powder charge, bottom adopts cement
Plug 19 is fixing, reserved 1.5m airspace.Sand 16 stemming length of bottom is 0.5m, and the length of explosive 17 is 1m, top
Sand 16 stemming length is 2m.Using stopper 18 as interlayer in the middle of the second layer and ground floor, other structures are identical with ground floor.
First separate explosion ore drawing should persist part ore before terminating, and safeguards goaf stability, as shown in back production unit E in figure one.
The compensation space 11 that should have before second ore caving and treat that quick-fried ore 5 is adapted, makes Caved orebody be full of goaf.The
After secondary blasting, the fixing device of the detachable steel column of dismounting 7 and polyurethane steel silk screen 4, decentralization polyurethane steel silk screen 4 is simultaneously laid
On ore deposit heap, form separation layer 3, as shown in back production unit C in Fig. 1.
Using the uniform ore removal of scraper, simultaneously will be equal for casting resin 1 using scraper in upper stage lower wall haulage drift 14
Even it is laid on separation layer 3, and using the fixing polyurethane steel silk screen 4 of detachable steel column 7 it is ensured that separation layer 3 is smooth moves down.Logical
Cross adjustment filling rate and ore drawing speed, the exposed area of country rock 13 can be controlled, give full play to the maintenance effect of casting resin 1,
Until ore removal terminates, as shown in back production unit A in figure one.
Casting resin 1 can be selected for adopting the barren rock that cut is made to include producing during cutting parallel space.After full of goaf, adopt
Slip casing by pressure forms cemented fill.Using " one stop panel " mining type, after back production unit A and C consolidated fill are complete, continue
Exploitation back production unit B.
Claims (3)
1. vertical long hole ore drawing synchronization twice packing stage mining codes are it is characterised in that comprise the following steps：
1) ore body across strike is divided the stage, across pitch arranges back production unit；
2) in each stage lower disposed this stage lower wall haulage drift, reach through shipment tunnel from lower wall haulage drift of upper stage
Upper stage moat ditch formula polycrystalline substance, forms this stage drilling chamber by back production section bottom structure；In drilling chamber two ends peace
Fill detachable steel column and carry out supporting roof, in detachable steel column upper end, detachable polyurethane steel silk screen is installed, prevents drilling chamber
Top board casting resin is dropped；Shipment tunnel is dug by this stage lower wall haulage drift and reaches mineral building bottom, the leakage by undercuting, expanding forms moat
Ditch formula polycrystalline substance；
3) bore vertical parallel blasthole downwards from drilling chamber, using two separate explosion ore drawings, before second ore caving, construct corresponding compensation
Space；Ore drawing puts down polyurethane steel silk screen after terminating, and is laid on ore deposit heap, forms separation layer；
4) ore removal filling above separation layer simultaneously below the back production unit of ore drawing；By the way of one stop panel, treat two
Individual be separated by back production unit filling complete after exploit middle back production unit again.
2. vertical long hole as claimed in claim 1 twice ore drawing synchronization packing stage mining codes it is characterised in that using detachable
The fixing polyurethane steel silk screen of formula steel column steel column is it is ensured that separation layer is smooth moves down.
3. vertical long hole as claimed in claim 1 twice ore drawing synchronization packing stage mining codes it is characterised in that casting resin select
Adopt cut as when the barren rock that produces；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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN106437717A true CN106437717A (en) | 2017-02-22 |
| CN106437717B CN106437717B (en) | 2019-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236246A (en) * | 2021-05-21 | 2021-08-10 | 中煤第七十一工程处有限责任公司 | Method for drawing groove by extrusion blasting of medium-length hole of 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236246A (en) * | 2021-05-21 | 2021-08-10 | 中煤第七十一工程处有限责任公司 | Method for drawing groove by extrusion blasting of medium-length hole of underground mine |
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| CN106437717B (en) | 2019-04-26 |
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