CN108661638B - A kind of method of ring holes recycling ore pillar - Google Patents
A kind of method of ring holes recycling ore pillar Download PDFInfo
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- CN108661638B CN108661638B CN201810435965.1A CN201810435965A CN108661638B CN 108661638 B CN108661638 B CN 108661638B CN 201810435965 A CN201810435965 A CN 201810435965A CN 108661638 B CN108661638 B CN 108661638B
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004064 recycling Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 18
- 239000011707 mineral Substances 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims description 10
- 238000004880 explosion Methods 0.000 claims description 8
- 238000005474 detonation Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 7
- 239000002360 explosive Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 5
- 210000001367 artery Anatomy 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 239000003999 initiator Substances 0.000 claims description 3
- 210000003462 vein Anatomy 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000007704 transition Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009423 ventilation 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The present invention relates to a kind of methods of ring holes recycling ore pillar, when including open air trestle exploitation, nugget is arranged along orebody trend, each nugget divides mineral building and ore pillar, Development system and adopt Barebone, it is characterised in that using ring holes back production mine thickness ore pillar-top pillar unit and using pole unit between long fanhole(s) back production.The invention has the advantages that being exploited for the transition from open-pit underground first stage using shallow hole shrinkage method, ore pillar mine unrecovered long, measures engineering amount can be reduced using such recovery method, save the time of ore pillar processing, it can guarantee the uniform of broken ore lumpiness simultaneously, improve the rate of recovery of ore pillar recycling.
Description
Technical field
The invention belongs to underground ore pillar recovery technology fields more particularly to transition from open-pit underground first stage to use shallow-hole shrinkage
Method exploitation, a kind of method of ore pillar ring holes recycling ore pillar unrecovered long.
Background technique
Shallow hole shrinkage method is one kind of open-stope method, is generally that back production unit is exploited with nugget, nugget is divided into again
Mineral building and ore pillar two parts, mineral building are the major parts of ore back production, and ore pillar is the major part for guaranteeing production safety, ore pillar packet
Top pillar, foundation and studding are included.To the stope of low-angle dip and inclined orebody, also there are ore pillars in a certain number of fields.Mineral building returns
Goaf is formed after adopting, goaf must be handled in due course, and otherwise goaf large area generates, and will cause large-scale rock
Shifting accident.It therefore is an important job to the ore pillar recycling in open-stope method mine and Mined-out Area control.
Pillar recovery is a component part of block stoping, it is desirable that considers to adopt quasi-, cutting engineering together with mineral building.But I
State, open-stope method mine, part, after mineral building back production, slowly without the recycling of ore pillar, this not only causes the damage of stock number
It loses, also improves difficulty to subsequent pillar recovery.
Summary of the invention
The purpose of the present invention is exploited for the transition from open-pit underground first stage using shallow hole shrinkage method, and ore pillar is unrecovered long, is
The method for eliminating the ring holes recycling ore pillar for the features such as mine hidden danger can recycle ore pillar mine amount simultaneously.
The purpose of the present invention is be achieved through the following technical solutions.
A kind of method of ring holes recycling ore pillar of the invention, including when open air trestle exploitation, along orebody trend cloth
Set nugget, each nugget divides mineral building and ore pillar, Development system and adopts Barebone and includes level haulageway, return aircourse I, returns
Ventilating shaft, pedestrian's vent (-escape) raise, pedestrian's vent (-escape) raise connection roadway and bottom structure are opened stage by stage using shallow hole shrinkage method
It adopts, after mineral building back production, forms the goaf of mineral building size, stay set ore pillar in the first stage, the ore pillar includes thick mine
Column, top pillar, studding and foundation, the thick ore pillar is apart from outdoor bottom 20-30m, it is characterised in that including using ring holes
Pole unit between back production thickness ore pillar-top pillar unit and the long fanhole(s) back production of use；
It is described to include: using ring holes back production thickness ore pillar-top pillar unit
1) arteries and veins external position newly digs return aircourse II among thick ore pillar, while every 50m, vertical in the pick of studding corresponding position
In the connecting taxiway of ore body；
2) in ore body connecting taxiway, using Simba1354 drill jumbo along the ring of orebody trend construction thick ore pillar and top pillar
The ring holes distance from bottom goaf of shape blasthole, the thick ore pillar and top pillar and construction tunnel should stay 0.5m ~ 2.0m not
It wears thoroughly, the ring holes powder charge of the thick ore pillar and top pillar carries out powder charge using BQF-100 type explosive loader；
Described includes: using pole unit between long fanhole(s) back production
1) studding drilling chamber is dug in pedestrian's vent (-escape) raise connection roadway；
2) use QZJ-100B down-the-hole drill along studding inclination angle downwards and in studding drilling chamber in ore body connecting taxiway respectively
Column length fanhole(s) between construction, the blasthole distance from bottom goaf of column length fanhole(s) and pedestrian's vent (-escape) raise connection roadway stay
There is 0.5m ~ 2.0m is impermeable to wear, blast hole projectile filling uses explosive loading truck；
Ring holes and column length fanhole(s) to the thick ore pillar and top pillar for installing medicine carry out explosion, entire explosion net
Network use double-detonating network, using initiator detonate nonel tube, using nonel tube ignite primacord after it is quick-fried by leading
Detonator in rope propagation of explosion to hole then ignites igniting primer by millisecond difference Nonel detonator；
Using the adjacent face of ore pillar and goaf as the scope of freedom, in order to make full use of this scope of freedom, thick ore pillar and top pillar and
Column is all made of the short-delay blasting with different sections of row, i.e. the blasthole close to the scope of freedom is first detonated, then successively risen into ore pillar
Quick-fried, a column length fanhole(s) lags behind thick ore pillar and the detonation of top pillar ring holes, and first stage foundation waits for that next stage mineral building returns
It is recycled together after adopting with next stage top pillar；
The ore pillar ore of avalanche after explosion is then charged into mine car by bottom structure ore removal, extremely by level haulageway
Auxiliary shaft parking lot, eventually by auxiliary shaft hoisting to earth's surface.
The blasthole diameter 76mm of the thick ore pillar and top pillar ring holes, minimum burden 1.6m ~ 2.0m, bottom hole pitch
2.5m ~ 3.0m, blasthole array pitch 1.6m ~ 2.0m.
The blasthole diameter 100mm of column length fanhole(s) between described, minimum burden 1.6m, bottom hole pitch are 2.5m ~ 3.0m,
Array pitch is 1.1 ~ 1.6m.
The beneficial effects of the invention are as follows create to meet personnel and equipment walking, construction and ventilation etc. using new pick return aircourse
Condition, it is ensured that the safety of operation and production；Then advanced drill jumbo is utilized, 360 ° of blastholes that are circular layout reduce measure
Project amount accelerates the penetration rate of blasthole, saves the time of ore pillar processing, while can guarantee the equal of broken ore lumpiness
It is even, improve the rate of recovery of ore pillar recycling.In addition, handling studding using long fanhole(s), the operation peace of construction personnel ensure that
Entirely, the effect in processing goaf is also played.
Detailed description of the invention
Fig. 1 is the front cross-sectional view A-A of the method for ring holes recycling ore pillar of the present invention.
Fig. 2 is the left view B-B sectional view of Fig. 1 of the present invention.
Fig. 3 is that Fig. 1 of the present invention overlooks C-C sectional view.
1. level haulageway in figure, 2. returnairshafts, 3. return aircourses I, 4. new pick return aircourses II, 5. ore bodies connection
Network road, 6. people's row vent (-escape) raises, 7. studding drilling chambers, 8. thick ore pillars, 9. top pillars, 10. studdings, 11. foundation, 12. bottoms
Structure, 13. ring holes, 14. long fanhole(s)s, 15. goafs.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 1-3, a kind of method of ring holes recycling ore pillar of the invention, including when open air trestle exploitation,
Nugget is arranged along orebody trend, and each nugget divides mineral building and ore pillar, Development system and to adopt Barebone include level haulageway
1, return aircourse I 3, returnairshaft 2, pedestrian's vent (-escape) raise 6, pedestrian's vent (-escape) raise connection roadway and bottom structure 12, using shallow bore hole
Shrinkage method is exploited stage by stage, after mineral building back production, is formed the goaf 15 of mineral building size, is stayed set mine in the first stage
Column, the ore pillar include thick ore pillar 8, top pillar 9, studding 10 and foundation 11, and the thick ore pillar 8 is apart from outdoor bottom 20-
30m, it is characterised in that including using 13 back production thickness ore pillar of ring holes-top pillar unit and using between long fan-shaped 14 blasthole back production
Pole unit；
It is described to include: using ring holes back production thickness ore pillar-top pillar unit
1) return aircourse II 4 is newly dug in the intermediate arteries and veins external position of thick ore pillar 8, while every 50m, is dug in 10 corresponding position of studding
Perpendicular to the connecting taxiway 5 of ore body；
2) it in ore body connecting taxiway 5, is constructed thick ore pillar 8 and top pillar 9 using Simba1354 drill jumbo along orebody trend
The 10 distance from bottom goaf 15 of ring holes of ring holes 13, the thick ore pillar 8 and top pillar 9 and construction tunnel should stay
0.5m ~ 2.0m is impermeable to be worn, and construction tunnel includes: return aircourse 3, newly digs return aircourse 4 and ore body connecting taxiway 5 etc., described
Thick ore pillar 8 and top pillar 9 13 powder charge of ring holes using BQF-100 type explosive loader carry out powder charge；
Described includes: using pole unit between long fanhole(s) back production
1) studding drilling chamber 7 is dug in pedestrian's vent (-escape) raise connection roadway；
2) incline respectively along studding downwards and in studding drilling chamber 7 using QZJ-100B down-the-hole drill in ore body connecting taxiway 5
Column length fanhole(s) between the construction of angle, the blasthole distance from bottom goaf 15 of column length fanhole(s) 14 and the contact of pedestrian's vent (-escape) raise
Tunnel is worn there are 0.5m ~ 2.0m is impermeable, and blast hole projectile filling uses explosive loading truck；
Ring holes 13 and the long fanhole(s) 14 of studding 10 to the thick ore pillar 8 and top pillar 9 for installing medicine carry out explosion, whole
A blasting network uses double-detonating network, using initiator detonation nonel tube, nonel tube is utilized to ignite primacord
Afterwards by detonator in primacord propagation of explosion to hole, igniting primer is then ignited by millisecond difference Nonel detonator；
Using the adjacent face of ore pillar and goaf 15 as the scope of freedom, in order to make full use of this scope of freedom, thick ore pillar 8 and top pillar 9
And studding 10 is all made of the short-delay blasting with different sections of row, i.e. the blasthole close to the scope of freedom is first detonated, then successively to mine
Detonation in column, the long fanhole(s) 14 of studding 10 lag behind thick ore pillar 8 and the detonation of 9 ring holes 13 of top pillar, first stage foundation 11
It is recycled together after to next stage mineral building back production with next stage top pillar；This detonation mode effectively ensure safety,
Reliably, it accurately detonates.
The transition from open-pit underground first stage is exploited using shallow hole shrinkage method, ore pillar mine unrecovered long uses this hair
The method of bright ring holes recycling ore pillar can reduce measures engineering amount, save the time of ore pillar processing, while can protect
The uniform of broken ore lumpiness is demonstrate,proved, the rate of recovery of ore pillar recycling is improved.
Claims (3)
1. a kind of method of ring holes recycling ore pillar, including when open air trestle exploitation, nugget is arranged along orebody trend, each
Nugget divides mineral building and ore pillar, Development system and to adopt Barebone include level haulageway, return aircourse, returnairshaft, Hang Rentong
Wind courtyard, pedestrian's vent (-escape) raise connection roadway and bottom structure are exploited stage by stage using shallow hole shrinkage method, mineral building back production knot
Shu Hou forms the goaf of mineral building size, stays set ore pillar in the first stage, the ore pillar include thick ore pillar, top pillar, studding and
Foundation, the thick ore pillar is apart from outdoor bottom 20-30m, it is characterised in that including using ring holes back production thickness ore pillar-top pillar
Pole unit between unit and the long fanhole(s) back production of use；
It is described to include: using ring holes back production thickness ore pillar-top pillar unit
1) arteries and veins external position newly digs return aircourse among thick ore pillar, while every 50m, digging in studding corresponding position perpendicular to ore body
Connecting taxiway；
2) in ore body connecting taxiway, using Simba1354 drill jumbo along the annular big gun of orebody trend construction thick ore pillar and top pillar
The ring holes distance from bottom goaf of hole, the thick ore pillar and top pillar and construction tunnel should stay 0.5m ~ 2.0m is impermeable to wear,
The ring holes powder charge of the thick ore pillar and top pillar carries out powder charge using BQF-100 type explosive loader；
Described includes: using pole unit between long fanhole(s) back production
1) studding drilling chamber is dug in pedestrian's vent (-escape) raise connection roadway；
2) it is constructed respectively using QZJ-100B down-the-hole drill along studding inclination angle downwards and in studding drilling chamber in ore body connecting taxiway
Between column length fanhole(s), the blasthole distance from bottom goaf of column length fanhole(s) and pedestrian's vent (-escape) raise connection roadway there are
0.5m ~ 2.0m is impermeable to be worn, and blast hole projectile filling uses explosive loading truck；
Ring holes and column length fanhole(s) to the thick ore pillar and top pillar for installing medicine carry out explosion, and entire blasting network is adopted
It is passed using after nonel tube ignition primacord by primacord with double-detonating network using initiator detonation nonel tube
It is quick-fried to detonator in hole, igniting primer is then ignited by millisecond difference Nonel detonator；
Using the adjacent face of ore pillar and goaf as the scope of freedom, in order to make full use of this scope of freedom, thick ore pillar and top pillar and studding equal
Using different sections of short-delay blasting of same row, i.e., the blasthole close to the scope of freedom is first detonated, and is then successively detonated into ore pillar,
Column length fanhole(s) lags behind thick ore pillar and the detonation of top pillar ring holes, and first stage foundation waits for that next stage mineral building back production finishes
It is recycled together with next stage top pillar afterwards；
The ore pillar ore of avalanche after explosion is then charged into mine car by bottom structure ore removal, passes through level haulageway to auxiliary shaft
Parking lot, eventually by auxiliary shaft hoisting to earth's surface.
2. the method for ring holes recycling ore pillar according to claim 1, it is characterised in that the thick ore pillar and top pillar
The blasthole diameter 76mm of ring holes, minimum burden 1.6m ~ 2.0m, bottom hole pitch 2.5m ~ 3.0m, blasthole array pitch 1.6m ~
2.0m。
3. the method for ring holes recycling ore pillar according to claim 1, it is characterised in that column length sector big gun between described
The blasthole diameter 100mm in hole, minimum burden 1.6m, bottom hole pitch are 2.5m ~ 3.0m, and array pitch is 1.1 ~ 1.6m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810435965.1A CN108661638B (en) | 2018-05-09 | 2018-05-09 | A kind of method of ring holes recycling ore pillar |
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| CN201810435965.1A CN108661638B (en) | 2018-05-09 | 2018-05-09 | A kind of method of ring holes recycling ore pillar |
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| CN108661638B true CN108661638B (en) | 2019-09-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2083832C1 (en) * | 1995-09-26 | 1997-07-10 | Научно-исследовательский институт горной геомеханики и маркшейдерского дела "ВНИМИ" | Method for development of steep impact-risky seams |
| CN103615250B (en) * | 2013-12-09 | 2015-09-23 | 中南大学 | The full Open stope mining afterwards filling of itemize studding works in coordination with mining codes |
| CN205225270U (en) * | 2015-12-25 | 2016-05-11 | 河北钢铁集团矿业有限公司 | Mining drilling chamber structure is filled to underground |
| CN106121647A (en) * | 2016-08-04 | 2016-11-16 | 西北矿冶研究院 | Method for centralized recovery of lag pillars through fractional blasting |
| CN106223958B (en) * | 2016-08-10 | 2017-09-29 | 山东华联矿业股份有限公司 | The slant middle thick orebody subregion rock drilling stage falls ore deposit afterwards filling collaboration mining codes |
| CN106677780B (en) * | 2017-02-21 | 2018-09-14 | 中冶北方（大连）工程技术有限公司 | Bottom ore removal afterwards filling mining method is cut in a kind of upward and downward stage rock drilling segmentation |
| CN107035372A (en) * | 2017-06-09 | 2017-08-11 | 临沂会宝岭铁矿有限公司 | A kind of moat ditch formula polycrystalline substance enters trackside peak abutment post recovery method |
| CN107339104B (en) * | 2017-08-03 | 2019-11-19 | 长沙矿山研究院有限责任公司 | Security isolation ore pillar recovery method |
| CN107989614B (en) * | 2017-12-06 | 2019-04-26 | 昆明冶金高等专科学校 | A mining method for mining steeply sloping thick ore bodies with broken surrounding rock in the upper wall |
| CN107939402B (en) * | 2017-12-28 | 2018-12-25 | 昆明冶金高等专科学校 | A kind of mining methods of the medium above firm inclined thick ore body of back production ore-rock |
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