CN105927224A - Gob-free ore discharging and filling synchronized milling method for thick ore body - Google Patents
Gob-free ore discharging and filling synchronized milling method for thick ore body Download PDFInfo
- Publication number
- CN105927224A CN105927224A CN201610366837.7A CN201610366837A CN105927224A CN 105927224 A CN105927224 A CN 105927224A CN 201610366837 A CN201610366837 A CN 201610366837A CN 105927224 A CN105927224 A CN 105927224A
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- Prior art keywords
- ore
- nugget
- cut
- filling
- gob
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Classifications
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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
-
- 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 gob-free ore discharging and filling synchronized milling method for a thick ore body. The method includes the steps that the thick ore body is divided into sections, and continuous ore blocks are distributed in the sections in the extending direction; in the cutting and mining preparation processes, gate ways are arranged above and below the sections correspondingly; before back production of the ore blocks, an ore discharge trench and a compensation space are built below the ore blocks through the gate way on the lower portion, and roof cutting is carried out on the upper portions of the ore blocks completely through the gate way on the upper portion, so that a roof cutting space is formed; horizontal flexible isolation layers are laid on the ore blocks with roofs cut, each ore block with the roof cut is disconnected with the adjacent ore blocks on the two sides in the extending direction through weak blasting so that vertical spaces can be formed, and vertical flexible isolation layers are distributed; and spallation of the ore blocks wrapped with the isolation layers is carried out, the ore blocks are discharged evenly through the ore discharge trench, and the horizontal flexible isolation layers are filled with filler. A gob is filled while ore discharging, dynamic management of the gob is achieved, the situation that surrounding rock is largely exposed is avoided, and accordingly no large gob is generated in the mining process; and the adaptability is good, and the application range is wide.
Description
Technical field
The present invention relates to the mining methods of a kind of mine underground exploitation, especially a kind of big thick ore body synchronizes ore drawing filling without goaf
Mining methods.
Background technology
It is said that in general, underground mining method can be divided into openstope method, the method for mining by the way of filling, caved stopes three class, although its pipe
The mode of reason ground pressure is each variant, but the most unavoidably there will be goaf in exploitation process, when goaf is unfilled or filling
Not in time, it is possible to such as a series of disasters such as top board avalanche, ore pillar destruction and surface subsidence occur, greatly threatens mine
Safety in production.
At present to big thick ore body, in order to improve production efficiency and reduce cost, it is intended to use the stope of big structural parameters to adopt
Ore deposit, basic feature is that back production is highly equal to stage overall height, and onepull amount is big, and, earth's surface the highest to exploitated ore value allows to collapse
The ore body fallen is especially suitable.This method has that nugget production capacity is big, and mining preparation work amount is little, and labor productivity is high, and low cost etc. is excellent
Point.But, its shortcoming the most clearly: pressed with managing by avalanche country rock bashing, land subsidence etc. can be caused to ask
Topic, makes Caving Method with Large Space can only allow the area use of avalanche on earth's surface, limits its range；If staying ore pillar to support goaf,
Then can cause a large amount of wastes of Ore；Even if employing afterwards filling, owing to the ore removal time is long, it is also possible to cause because filling is too late
Time and press protrusion phenomenon with occurring；Additionally, explosion can cause periphery barren rock to be mixed in the middle of Ore, and when using ore drawing under overlying strata
Time, barren rock also being made to be mixed in advance, cause ore dilution rate to rise, if using cut off grade ore drawing, then can cause substantial amounts of
Ore losses.
Summary of the invention
Present invention aim at solving conventional mining methods mined-out area hazard and the big problem of ore dilution loss, it is provided that a kind of thick big
Ore body synchronizes ore drawing filling mining method without goaf, reduces ore dilution rate, prevents surface subsidence.
For reaching above-mentioned purpose, use technical scheme as follows:
The mining methods of a kind of big thick ore body, comprise the following steps:
Big thick ore body divides the stage, and in the stage, across pitch arranges continuous nugget；Cutting is adopted punctual, each in stage upper and lower
Arrange that one is taken into account transport, cuts top, ventilates and the gallery of filling, and during mining, the bottom gallery in this stage is the upper of next stage
Portion's gallery；
Before block stoping, construct ore removal moat ditch and compensation space first with bottom gallery in nugget bottom, recycle upper entry pair
Nugget top is cut top formation comprehensively and is cut between head space；Laid horizontal flexibility sealing coat cutting above the nugget of top, cut ore deposit, top simultaneously
The both sides of block across pitch utilize weak blast to cut off it and form vertical direction spatial with the connection of adjacent nugget, and arrange vertical flexible isolating layer；
To the nugget of parallel medium-length hole blasting forced caving sealing coat parcel under employing, utilize the ore removal uniform ore removal of moat ditch will fill simultaneously
Filling packing is on horizontal flexibility sealing coat, along with ore removal process carries out synchronizing filling to avoid goaf to occur.
By such scheme, described flexible isolating layer is asphalt felt or SBS modified asphalt waterproof coiled material.
By such scheme, ore removal moat ditch, cut between head space, opening up of compensation space, vertical direction spatial all surpasses the first two than actual mining
Nugget.
In sum, the invention have the advantages that
1) flexible protective layer has isolated Ore and barren rock, reduces ore dilution rate；
2) can success mining and primary excavation ore deposit amount big, mining efficiency is high；
3) overcoat of nugget side when avoiding back production the casting resin of adjacent mining blocks be mixed into Ore, reduce during back production quick-fried simultaneously
The broken vibration destruction to neighbouring obturator, improves back production safety；
4) ore drawing simultaneously bashing, it is achieved that goaf dynamically manages, it is to avoid the situation that country rock large area exposes occurs,
Make in mining process without large scale mined area appearance；
5) use the mode of filling to press with managing, make full use of industrial waste, it is to avoid surface subsidence, beneficially environmental conservation；
6) can adjust for different mining environments, adaptability is good, applied range.
Accompanying drawing explanation
Fig. 1: big thick ore body of the present invention synchronizes ore drawing filling mining method schematic diagram.
1-bottom gallery, 2-foundation, 3-ore removal moat ditch, 4-Ore, 5-compensation space, 6-rock drilling gallery, 7-undercuts tunnel, 8-
Undercut big gun hole, 9-stone to be dug up mine, and 10-cuts between head space, 11-horizontal flexibility sealing coat, 12-upper entry, the vertical flexible isolating of 13-
Layer, 14-casting resin.
Detailed description of the invention
Following example explain technical solution of the present invention further, but not as limiting the scope of the invention.
Referring to the drawings shown in 1, the mining methods of a kind of big thick ore body:
Big thick ore body being divided the stage, is illustrated in figure 1 a stage, in the stage, across pitch arranges continuous nugget, in Fig. 1
Nugget a and nugget b and nugget c；It is punctual that cutting is adopted, and respectively arranges that in stage upper and lower one is taken into account transport, cuts top, ventilation
With the gallery 1 and 12 of filling, and mining time this stage the upper entry that bottom gallery is the next stage；
Before block stoping, in nugget bottom foundation 2, construct ore removal moat ditch 3 first with bottom gallery 1 and form compensation space 5,
Top is cut in nugget top by recycling upper entry 12 comprehensively；Horizontal flexibility sealing coat 11 is laid, simultaneously above the nugget of top being cut
Utilized weak blast to cut off the connection of itself and adjacent nugget by the both sides cutting top nugget across pitch, and arrange vertical flexible isolating layer 13
(such as nugget a)；
To the nugget a of parallel medium-length hole blasting forced caving sealing coat parcel under employing, utilize the uniform ore removal of ore removal moat ditch 3 simultaneously
Casting resin 14 is filled on horizontal flexibility sealing coat 11, along with ore removal process carries out synchronizing filling to avoid goaf to occur.
Specific operation process is as follows: uses shallow blasting to cut top by stage upper entry 12 comprehensively, cuts heights of roofs 3m, is formed
What enough rock drilling equipment normally worked cut between head space 10, then dig the tunnel 7 that undercuts, drilling drift 6 in sector undercut big gun
Hole 8, forms the compensation space 5 of high 5m after explosion；After being formed Deng compensation space, in cutting head space, chisel extends through compensation space
Aperture 165mm lower to parallel medium-length hole；Meanwhile, on closing on, the tier hole of a back production nugget uses approximation presplit blasting
Mode carries out rock drilling powder charge, carries out intensive big gun hole and weakens the explosion of powder charge, to form the width vertical space as 1m (i.e.
The packing space of vertical flexible isolating layer 13)；Lay respectively in cutting between head space 10 and vertical space horizontally and vertically by oil hair
The flexible protective layer of the composition such as felt, SBS modified asphalt waterproof coiled material is also fixed against landing, and props up between head space cutting temporarily
Protect.Moat ditch and cut between head space, opening up of compensation space, vertical direction spatial all surpasses the first two nugget than actual mining, i.e. along exploitation side
To nugget numbered a, b, c, before the complete ore drawing of nugget a, just complete the cutting moat ditch of nugget c, cut top, compensation space, perpendicular
To space and lay the work such as sealing coat, simultaneously in the compensation space of nugget c vertical space quick-fried fall Ore wouldn't release completely.
Stone 9 to be dug up mine is the ore fraction also not carrying out adopting work such as cutting.
Claims (3)
1. the mining methods of a big thick ore body, it is characterised in that comprise the following steps:
Big thick ore body divides the stage, and in the stage, across pitch arranges continuous nugget；Cutting is adopted punctual, each in stage upper and lower
Arrange that one is taken into account transport, cuts top, ventilates and the gallery of filling, and during mining, the bottom gallery in this stage is the upper of next stage
Portion's gallery；
Before block stoping, construct ore removal moat ditch and compensation space first with bottom gallery in nugget bottom, recycle upper entry pair
Nugget top is cut top formation comprehensively and is cut between head space；Laid horizontal flexibility sealing coat cutting above the nugget of top, cut ore deposit, top simultaneously
The both sides of block across pitch utilize weak blast to cut off it and form vertical direction spatial with the connection of adjacent nugget, and arrange vertical flexible isolating layer；
To the nugget of parallel medium-length hole blasting forced caving sealing coat parcel under employing, utilize the ore removal uniform ore removal of moat ditch will fill simultaneously
Filling packing is on horizontal flexibility sealing coat, along with ore removal process carries out synchronizing filling to avoid goaf to occur.
2. the mining methods of big thick ore body as claimed in claim 1, it is characterised in that described flexible isolating layer is asphalt felt or SBS
Modified asphalt waterproof coiled material.
3. the mining methods of as claimed in claim 1 big thick ore body, it is characterised in that ore removal moat ditch, cut between head space, compensation space,
Opening up of vertical direction spatial all surpasses the first two nugget than actual mining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366837.7A CN105927224B (en) | 2016-05-27 | 2016-05-27 | Big thick ore body is without goaf synchronization ore drawing filling mining method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366837.7A CN105927224B (en) | 2016-05-27 | 2016-05-27 | Big thick ore body is without goaf synchronization ore drawing filling mining method |
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| CN105927224A true CN105927224A (en) | 2016-09-07 |
| CN105927224B CN105927224B (en) | 2018-01-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437717A (en) * | 2016-11-21 | 2017-02-22 | 武汉理工大学 | Vertical deep hole twice ore drawing synchronous filling stage mining method |
| CN106837412A (en) * | 2017-02-28 | 2017-06-13 | 山东科技大学 | It is a kind of to build the method that bashing is spaced with house refuse clamp dog |
| CN116446880A (en) * | 2023-04-04 | 2023-07-18 | 中煤科工开采研究院有限公司 | Green mining method and device, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864957A (en) * | 2010-05-25 | 2010-10-20 | 广西大学 | Great ore drawing simultaneous filling non-top column shrinkage mining method |
| CN103061767A (en) * | 2013-01-17 | 2013-04-24 | 云南临沧鑫圆锗业股份有限公司 | Downward horizontal-slice dry-type filling mining method |
| CN103742190A (en) * | 2014-01-27 | 2014-04-23 | 淄博王煤矿业有限公司 | Slurry vacuum bag multi-point synchronization filling device and filling technology |
| 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 |
| RU2569708C1 (en) * | 2014-10-21 | 2015-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Северо-Кавказский горно-металлургический институт (государственный технологический университет) (СКГМИ (ГТУ) | Working of thick deposits of horizon-pillar system sandstowing |
-
2016
- 2016-05-27 CN CN201610366837.7A patent/CN105927224B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864957A (en) * | 2010-05-25 | 2010-10-20 | 广西大学 | Great ore drawing simultaneous filling non-top column shrinkage mining method |
| CN103061767A (en) * | 2013-01-17 | 2013-04-24 | 云南临沧鑫圆锗业股份有限公司 | Downward horizontal-slice dry-type filling mining method |
| CN103742190A (en) * | 2014-01-27 | 2014-04-23 | 淄博王煤矿业有限公司 | Slurry vacuum bag multi-point synchronization filling device and filling technology |
| RU2569708C1 (en) * | 2014-10-21 | 2015-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Северо-Кавказский горно-металлургический институт (государственный технологический университет) (СКГМИ (ГТУ) | Working of thick deposits of horizon-pillar system sandstowing |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437717A (en) * | 2016-11-21 | 2017-02-22 | 武汉理工大学 | Vertical deep hole twice ore drawing synchronous filling stage mining method |
| CN106437717B (en) * | 2016-11-21 | 2019-04-26 | 武汉理工大学 | Ore drawing synchronizes packing stage mining codes to vertical long hole twice |
| CN106837412A (en) * | 2017-02-28 | 2017-06-13 | 山东科技大学 | It is a kind of to build the method that bashing is spaced with house refuse clamp dog |
| CN106837412B (en) * | 2017-02-28 | 2019-01-11 | 山东科技大学 | A method of building and house refuse clamp dog interval bashing |
| CN116446880A (en) * | 2023-04-04 | 2023-07-18 | 中煤科工开采研究院有限公司 | Green mining method and device, electronic equipment and storage medium |
| CN116446880B (en) * | 2023-04-04 | 2023-12-01 | 中煤科工开采研究院有限公司 | Green mining method and device, electronic equipment and storage medium |
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| CN105927224B (en) | 2018-01-12 |
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