CN106837335B - Truck cooperates with ore removal sill pillars sublevel caving method - Google Patents

Truck cooperates with ore removal sill pillars sublevel caving method Download PDF

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Publication number
CN106837335B
CN106837335B CN201710154314.0A CN201710154314A CN106837335B CN 106837335 B CN106837335 B CN 106837335B CN 201710154314 A CN201710154314 A CN 201710154314A CN 106837335 B CN106837335 B CN 106837335B
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CN
China
Prior art keywords
ore
truck
cooperates
sublevel caving
ramp
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CN201710154314.0A
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Chinese (zh)
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CN106837335A (en
Inventor
陈庆发
胡华瑞
陈青林
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广西大学
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Priority to CN201710154314.0A priority Critical patent/CN106837335B/en
Publication of CN106837335A publication Critical patent/CN106837335A/en
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Publication of CN106837335B publication Critical patent/CN106837335B/en

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00Transport specially adapted to underground conditions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D3/00Particular applications of blasting techniques
    • F42D3/04Particular applications of blasting techniques for rock blasting

Abstract

A kind of truck collaboration ore removal sill pillars sublevel caving method includes the following steps: that the stage, interior divide along orebody strike was segmented by the inclination of lower wall country rock moderately stable or more-inclined thick ore body or the arbitrary angle extremely thick ore body division stage;Ore body lower wall arranges the outer haulage drift of arteries and veins and ramp;Utilize the short drop shaft of transport tunnelling and the sensible ore body of drilling drift outside arteries and veins;Using vertical fan-shaped medium-length hole ore blast when back production;Ore is directly loadable into truck through short drop shaft and drawing chute under overlying strata, is then transported to earth's surface through ramp.The present invention has reformed traditional vertical long hole and has fallen mine sill pillars sublevel caving method, using the direct ore removal of truck, improves mechanization degree, it ensure that the collaboration for falling mine and ore removal, bottom structure is simplified, reduces ore transhipment cargo handling operation, improves mining production efficiency.

Description

Truck cooperates with ore removal sill pillars sublevel caving method
Technical field
The present invention relates to a kind of mining methods of metal mine underground mining, specifically a kind of truck collaboration ore removal has foundation Sublevel caving method allows avalanche, inclination-inclined thick ore body of lower wall country rock moderately stable or more or any suitable for earth's surface The extremely thick orebody mining in inclination angle.
Background technique
For allowing earth's surface avalanche, and the inclination of lower wall country rock moderately stable or more-inclined thick ore body or arbitrarily incline The extremely thick ore body in angle generally falls mine sill pillars sublevel caving method back production using vertical long hole, and when this method back production ore body, which has, opens The advantage that intensity is big, production safety is reliable is adopted, but due to using the ore removals such as scraper, drop shaft, also there is bottom to a certain extent Structure is complicated, adopts the disadvantages of big quasi- cutting project amount, ore removal low efficiency, and stope is caused to fall mine and ore removal operation in time and mine amount On be unable to good match.
In recent years, the simplification of mining link and flexible transport are the trend of China's underground mining technology development, this A little thoughts have stronger directive significance for the innovation of conventional mining method.As being used to reform traditional hang down for these thoughts Straight deep hole falls mine sill pillars sublevel caving method, it will help to ensure that the collaboration for falling mine and ore removal operation on time and mine amount, Promote the production efficiency in mine.
Summary of the invention
The shortcomings that present invention falls mine sill pillars sublevel caving method for traditional vertical long hole provides a kind of truck and cooperates with out Mine sill pillars sublevel caving method.This method transports mine using truck, and using the direct ore removal of ramp, final improve falls mine and ore removal Harmony.It can simplify nugget bottom structure, and reduction, which is adopted, cuts project amount;Improve mining mechanization degree and ore ore removal effect Rate further increases the production capacity of nugget, final safe and efficient, the inexpensive collaboration back production for realizing ore body.
To solve above-mentioned technical problem, the technical solution adopted by the present invention is that: a kind of truck collaboration ore removal has foundation segmentation Caving Method with Large Space includes the following steps:
(1) by the extremely thick ore body division rank of inclination more than lower wall country rock moderately stable-inclined thick ore body or arbitrary angle Section is divided along orebody strike in the stage and is segmented;
(2) before ore body back production, drawing chute, short drop shaft and rock drilling lane are constructed in bottom using haulage drift outside the pulse at the CHI Road tunnels cutting gallery and slot raise using drilling drift, and slot raise is expanded side using medium-length hole blasting and forms cutting groove;
(3) when block stoping, mine is fallen using vertical fan shaped medium length hole high bunch continuous method using cutting groove as the scope of freedom, every time 8~10 artillery salvo holes are collapsed, ore is directly loadable into truck through short drop shaft and drawing chute under overlying strata, and truck is transported to ground through ramp Table a, until substoping finishes.
The above inclination of the lower wall country rock moderately stable-inclined thick ore body or arbitrary angle extremely thick ore body division stage, Stage high 50~60m is divided along orebody strike in the stage and is segmented, and is segmented high 10~25m, is segmented the high 6~8m of foundation.
The above inclination of the lower wall country rock moderately stable-inclined thick ore body or arbitrary angle extremely thick ore body division stage, Include the following steps:
It is that 4m × 3m haulage drift digs the short drop shaft of 3m × 2m in segmentation foundation and specification is 3m × 3m first with specification Drilling drift, and by drilling drift dig specification be 2m × 2m cutting gallery and specification be 2m × 2m slot raise, utilization Slot raise is expanded side and forms cutting groove by medium-length hole blasting, and explosion scope of freedom when as ore back production is beaten in drilling drift Vertical fan shaped medium length hole, and most inner side blasthole and level, so that ore is glided using self weight, are squeezed at 55 °~60 ° using elementary errors Explosion from left to right or from right to left successively ore caving, collapses 8~10 artillery salvo holes, ore is leaked through short drop shaft and ore drawing under overlying strata every time Bucket is directly loadable into truck, and truck is transported to earth's surface through the ramp that specification is 3m × 3m, until a substoping finishes.
The drawing chute mouth is equipped with vibration ore dumping machine, and ore drawing machine goes out mine mouth end apart from roadway floor at least 2.5m。
The ramp gradient is 10%~20%.
The ramp turn of bilge gradient is 0~3%.
The ramp and haulage drift joint are two-way traffic, meet the requirement that two trucies pass through side by side.
0.5~the 1m of truck interval rests in haulage drift immediately below funnel side.
Protrusion technical characterstic of the invention is:
(1) mechanization degree is improved, improves and falls mine and ore removal using the direct ore removal of ramp using truck fortune mine Harmony on activity duration and mine amount overcomes conventional vertical deep hole and falls lacking for mine sill pillars sublevel caving method ore removal low efficiency Point, improves production efficiency.
(2) slusher runner engineering is reduced, bottom structure is simplified;
(3) reduce ore transhipment cargo handling operation.
Detailed description of the invention
Fig. 1 is that truck of the present invention cooperates with I-I cross-sectional view of ore removal sill pillars sublevel caving method.
Fig. 2 is that truck of the present invention cooperates with II-II cross-sectional view of ore removal sill pillars sublevel caving method.
Fig. 3 is that truck of the present invention cooperates with III-III cross-sectional view of ore removal sill pillars sublevel caving method.
In the figure, it is marked as haulage drift 1, short drop shaft 2, drilling drift 3, blasthole 4, cutting groove 5, cutting gallery 6, ramp 7, ramp is curved 8, truck 9, lower wall country rock 10.
Specific embodiment
Below by way of drawings and examples, the technical scheme of the present invention will be further described.
As shown in Figure 1 to Figure 3, truck of the present invention cooperates with ore removal sill pillars sublevel caving method, includes the following steps:
(1) it is by the extremely thick ore body division of inclination more than lower wall country rock moderately stable-inclined thick ore body or arbitrary angle In the stage, the stage, interior divide along orebody strike was segmented, and stage high 50~60m divides segmentation along orebody strike in the stage, was segmented high by 10 ~25m is segmented the high 6~8m of foundation.
(2) before back production, the haulage drift 1 that specification is 4m × 3m is dug in ore body lower wall country rock, from bottom to top at segmentation bottom The drilling drift 3 that the short drop shaft 2 of pick 3m × 2m and specification are 3m × 3m in column, and digging specification by drilling drift 3 is 2m × 2m Cutting gallery 6 and specification be 2m × 2m slot raise 5, slot raise 5 is expanded into side into cutting groove in a manner of medium-length hole blasting, is made Explosion scope of freedom when for back production;
(3) when back production, beat vertical fan shaped medium length hole 4 in drilling drift 3, and most inner side blasthole and it is horizontal at 55 °~ 60 °, so that ore slips certainly;The from left to right or from right to left successively ore caving using high bunch continuous method, collapses 8~10 artillery salvos every time Hole;When ore removal, truck 9 is rested against immediately below drawing chute mouth by entering on the left of haulage drift 1, and 9 time interval 0.5 of truck~ 1m;After filling mine, by transporting on the right side of haulage drift 1, earth's surface is transported to through the ramp 7 that specification is 3m × 3m.

Claims (7)

1. a kind of truck cooperates with ore removal sill pillars sublevel caving method, characterized in that include the following steps:
(1) by inclination more than lower wall country rock moderately stable-inclined thick ore body or arbitrary angle extremely thick ore body division stage, rank It divides and is segmented along orebody strike in section;
(2) before ore body back production, drawing chute, short drop shaft and drilling drift are constructed in bottom using haulage drift outside the pulse at the CHI, benefit Cutting gallery and slot raise are tunneled with drilling drift, slot raise is expanded into side using medium-length hole blasting and forms cutting groove;
(3) when block stoping, mine is fallen using vertical fan shaped medium length hole high bunch continuous method using cutting groove as the scope of freedom, collapses 8 every time ~10 artillery salvo holes, ore is directly loadable into truck through short drop shaft and drawing chute under overlying strata, and truck is transported to earth's surface through ramp, directly It is finished to a substoping.
2. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, characterized in that in the lower wall country rock Etc. the firm above inclination-inclined thick ore body or arbitrary angle extremely thick ore body division stage, stage high 50~60m, edge in the stage Orebody strike divides segmentation, is segmented high 10~25m, is segmented the high 6~8m of foundation.
3. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, characterized in that in the lower wall country rock Etc. the firm above inclination-inclined thick ore body or the arbitrary angle extremely thick ore body division stage, include the following steps:
It is the chisel that 4m × 3m haulage drift digs the short drop shaft of 3m × 2m in segmentation foundation and specification is 3m × 3m first with specification Rock gangway road, and the cutting gallery and specification for being 2m × 2m by drilling drift pick specification are 2m × 2m slot raise, depth in utilization Slot raise is expanded side and forms cutting groove by hole explosion, explosion scope of freedom when as ore back production, is beaten in drilling drift vertical Fan shaped medium length hole, and most inner side blasthole and level glide, using high bunch continuous method at 55 °~60 ° so that ore utilizes to be self-possessed From left to right or from right to left successively ore caving, collapses 8~10 artillery salvo holes, ore is straight through short drop shaft and drawing chute under overlying strata every time It is hinged with into truck, truck is transported to earth's surface through the ramp that specification is 3m × 3m, until a substoping finishes.
4. truck according to claim 2 cooperates with ore removal sill pillars sublevel caving method, characterized in that the drawing chute mouth Vibration ore dumping machine is installed, and ore drawing machine goes out mine mouth end apart from roadway floor at least 2.5m.
5. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, characterized in that the ramp gradient It is 10%~20%.
6. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, characterized in that the ramp turn of bilge The gradient is 0~3%.
7. truck according to claim 1 cooperates with ore removal sill pillars sublevel caving method, characterized in that the ramp and fortune Defeated tunnel joint is two-way traffic, meets the requirement that two trucies pass through side by side.
CN201710154314.0A 2017-03-15 2017-03-15 Truck cooperates with ore removal sill pillars sublevel caving method CN106837335B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107687339A (en) * 2017-09-14 2018-02-13 南华大学 A kind of efficient mining methods of Media thick and rake ore body

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101338674A (en) * 2008-08-14 2009-01-07 武汉理工大学 Non-pillar sublevel caving mining method for direct loading for ore
CN103362510A (en) * 2013-08-01 2013-10-23 广西大学 Sublevel-drilling bench-combination ore-removal sublevel-room mining method
CN104100270A (en) * 2014-06-13 2014-10-15 贵州开磷(集团)有限责任公司 Trackless mining method for gently inclined ore vein
CN104533416A (en) * 2014-12-25 2015-04-22 中冶北方(大连)工程技术有限公司 Large-scale mechanized non-sill-pillar sub-level caving mining method for extremely thick ore body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101338674A (en) * 2008-08-14 2009-01-07 武汉理工大学 Non-pillar sublevel caving mining method for direct loading for ore
CN103362510A (en) * 2013-08-01 2013-10-23 广西大学 Sublevel-drilling bench-combination ore-removal sublevel-room mining method
CN104100270A (en) * 2014-06-13 2014-10-15 贵州开磷(集团)有限责任公司 Trackless mining method for gently inclined ore vein
CN104533416A (en) * 2014-12-25 2015-04-22 中冶北方(大连)工程技术有限公司 Large-scale mechanized non-sill-pillar sub-level caving mining method for extremely thick ore body

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