CN110029998A - Sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody - Google Patents
Sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody Download PDFInfo
- Publication number
- CN110029998A CN110029998A CN201910226526.4A CN201910226526A CN110029998A CN 110029998 A CN110029998 A CN 110029998A CN 201910226526 A CN201910226526 A CN 201910226526A CN 110029998 A CN110029998 A CN 110029998A
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- ore removal
- ore
- stope
- drill
- sublevel
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
-
- 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D19/00—Provisional protective covers for working space
- E21D19/02—Provisional protective covers for working space for use in longwall working
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- 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 kind of sublevel drill and benching ore removal afterwards filling methods suitable for steeply inclined thin middle thickness orebody, stope is arranged along orebody trend, mineral building and ore pillar arranged for interval in stope, nugget shares mine chute and vent (-escape) raise, mine chute and vent (-escape) raise pass through that ore removal wears arteries and veins and rock drilling is worn arteries and veins and communicated with ore removal connection lane, the tunnel that undercuts respectively, and ore removal connection lane is located at ore body lower wall;Rock drilling is using, to fan shaped medium length hole, blasthole is staggeredly arranged between row and row, every 1 ~ 2 artillery salvo hole of separate explosion on hydraulic drill ring Drilling;Operational security of the present invention is higher, and stope nugget arrangement is simple, and single stope long service life is adopted and cut than small, and the rate of dilution is low, high stoping rate, ton mine lower production costs.
Description
Technical field
The present invention relates to operational method field under mine, specifically a kind of sublevel drilling suitable for steeply inclined thin middle thickness orebody
Stage ore removal afterwards filling method.
Background technique
China mine steeply inclined thin ~ middle thickness orebody (8 ~ 30m of orebody thickness) used shallow-hole shrinkage afterwards filling method at present,
Level interval is 40 ~ 50m, and 10 ~ 14m of height of lift, mineral building ore pillar arranged for interval, after mineral building filling, then stooping pillaring, stope are wide
16m is spent, wherein a step mineral building width is 8m, two step column width are 8m.For super-huge underground mine, in order to meet mine
Production capacity, generally require the multiple nuggets of tissue while producing, and personnel in exposure top plate and two help to be obturation
Operation is carried out in stope, is faced with roof collapse at any time and danger that obturation collapses, operational security is poor, and every stratified mining is all
The work such as turquoise, sled top, supporting must be carried out, roof control large labor intensity needs newly-increased people's row ventilation shaft and stope contact
Lane, adopts that cut project amount larger.
The object of the present invention is to provide a kind of sublevel drilling stages suitable for steeply inclined thin middle thickness orebody for summary of the invention
Ore removal afterwards filling method carries out the problems of operation to solve the prior art using shallow-hole shrinkage afterwards filling method.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
Sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody, it is characterised in that: including following step
It is rapid:
(1), stope is arranged: mineral building and ore pillar arranged for interval along orebody trend arrangement stope, stope, 40 ~ 50m of length of stope,
Width of stope is the horizontal breadth of ore body, and 25 ~ 28m of height of lift, level interval is 100 ~ 120m;
(2), adopt quasi- cutting: nugget shares mine chute and vent (-escape) raise, mine chute and vent (-escape) raise are worn by ore removal respectively
Arteries and veins and ore removal connection lane are worn in arteries and veins and rock drilling, the tunnel that undercuts communicates, and ore removal connection lane and the tunnel that undercuts use the arrangement in affectionately, and use
Flat-bottom trench bottom structure, ore removal connection lane are located at ore body lower wall, and ore removal route and ore removal connection lane angle are 55 °, between ore removal route
Away from for 16m, rock drilling segmentation is arranged at 5~15m of ore body lower wall in lane along the pulse;
(3), back production: rock drilling uses on hydraulic drill ring Drilling to fan shaped medium length hole, blasthole diameter ф 80mm, blasthole array pitch
1.8 m, 2m, blasthole is staggeredly arranged between row and row, every 1 ~ 2 artillery salvo hole of separate explosion;
The sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody, it is characterised in that: step
(2) slot raise and cutting crosscut are arranged in nugget end in;When pillar recovery, stope both ends are obturation, depend on close end 1m
Place's arrangement slot raise and cutting crosscut.
The sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody, it is characterised in that:
To parallel medium-length hole on arranging by row in cutting lane, cutting row forms cutting groove as scope of freedom explosion to cut well.
The sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody, it is characterised in that:
In step (3), cutting and rock drilling lane mesoporous are all arranged in ore body, reserve 0.5 ~ 1m retaining wall, reduce explosion to support country rock
Damage and failure, reduce rock wall caving be mixed into.
The sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody, it is characterised in that:
In step (3), blasthole uses explosive loading trolley powder charge, and explosive uses ammonia oil granular explosive, carries out millisecond short delay blasting, first quick-fried
Broken center blasthole, rear explosion corner blasthole;Each segmentation falls mine in stepped explosion by several times from top to bottom, and each rock drilling level uses bavin
Oily scraper loosens ore removal, and ore removal level carries out concentrating mining using electric LHD.
More traditional exploitation steeply inclined thin ~ used mining methods of middle thickness orebody and production technique, the present invention have following bright
Aobvious advantage:
1, it avoids helping to carry out the operations such as rock drilling, sled top, supporting, operation safety in the stope for being all obturation in exposure top plate and two
Property is higher.
2, stope nugget arrangement is simple, and single ore drawing in stope amount is big, meet super-huge mine capacity melt adopt it is new
It is required that.
3, single stope long service life, production smoothing are easily organized, and mechanization degree is high.
4, it adopts and cuts than small, the rate of dilution is low, high stoping rate, ton mine lower production costs.
Specific embodiment
Sublevel drill and benching ore removal afterwards filling method suitable for steeply inclined thin middle thickness orebody, comprising the following steps:
(1), stope is arranged: mineral building and ore pillar arranged for interval along orebody trend arrangement stope, stope, 40 ~ 50m of length of stope,
Width of stope is the horizontal breadth of ore body, and 25 ~ 28m of height of lift, level interval is 100 ~ 120m;
(2), adopt quasi- cutting: nugget shares mine chute and vent (-escape) raise, mine chute and vent (-escape) raise are worn by ore removal respectively
Arteries and veins and ore removal connection lane are worn in arteries and veins and rock drilling, the tunnel that undercuts communicates, and ore removal connection lane and the tunnel that undercuts use the arrangement in affectionately, and use
Flat-bottom trench bottom structure, ore removal connection lane are located at ore body lower wall, and ore removal route and ore removal connection lane angle are 55 °, between ore removal route
Away from for 16m, rock drilling segmentation is arranged at 5~15m of ore body lower wall in lane along the pulse;
(3), back production: rock drilling uses on hydraulic drill ring Drilling to fan shaped medium length hole, blasthole diameter ф 80mm, blasthole array pitch
1.8 m, 2m, blasthole is staggeredly arranged between row and row, every 1 ~ 2 artillery salvo hole of separate explosion;
Slot raise and cutting crosscut are arranged in nugget end in step (2);When pillar recovery, stope both ends are obturation, are leaned on
Slot raise and cutting crosscut are arranged at close end 1m.
To parallel medium-length hole on arranging by row in cutting lane, cutting row is cut using cutting well as scope of freedom explosion formation
Slot.
In step (3), cutting and rock drilling lane mesoporous are all arranged in ore body, reserve 0.5 ~ 1m retaining wall, reduce explosion pair
The damage and failure of country rock is supported, rock wall caving is reduced and is mixed into.
In step (3), blasthole uses explosive loading trolley powder charge, and explosive uses ammonia oil granular explosive, carries out msdelayed light emission
Explosion, first explosion center blasthole, rear explosion corner blasthole;Each segmentation falls mine, each rock drilling in stepped explosion by several times from top to bottom
Level loosens ore removal using diesel LHD, and ore removal level carries out concentrating mining using electric LHD.
Claims (5)
1. being suitable for the sublevel drill and benching ore removal afterwards filling method of steeply inclined thin middle thickness orebody, it is characterised in that: including following
Step:
(1), stope is arranged: mineral building and ore pillar arranged for interval along orebody trend arrangement stope, stope, 40 ~ 50m of length of stope,
Width of stope is the horizontal breadth of ore body, and 25 ~ 28m of height of lift, level interval is 100 ~ 120m;
(2), adopt quasi- cutting: nugget shares mine chute and vent (-escape) raise, mine chute and vent (-escape) raise are worn by ore removal respectively
Arteries and veins and ore removal connection lane are worn in arteries and veins and rock drilling, the tunnel that undercuts communicates, and ore removal connection lane and the tunnel that undercuts use the arrangement in affectionately, and use
Flat-bottom trench bottom structure, ore removal connection lane are located at ore body lower wall, and ore removal route and ore removal connection lane angle are 55 °, between ore removal route
Away from for 16m, rock drilling segmentation is arranged at 5~15m of ore body lower wall in lane along the pulse;
(3), back production: rock drilling uses on hydraulic drill ring Drilling to fan shaped medium length hole, blasthole diameter ф 80mm, blasthole array pitch
1.8 m, 2m, blasthole is staggeredly arranged between row and row, every 1 ~ 2 artillery salvo hole of separate explosion.
2. the sublevel drill and benching ore removal afterwards filling method according to claim 1 suitable for steeply inclined thin middle thickness orebody,
It is characterized by: slot raise and cutting crosscut are arranged in nugget end in step (2);When pillar recovery, stope both ends are to fill
Body is filled out, arrangement slot raise and cutting crosscut at close end 1m.
3. the sublevel drill and benching ore removal afterwards filling method according to claim 2 suitable for steeply inclined thin middle thickness orebody,
It is characterized by: to parallel medium-length hole on arranging by row in cutting lane, cutting row is cut using cutting well as scope of freedom explosion formation
Cut slot.
4. the sublevel drill and benching ore removal afterwards filling method according to claim 1 suitable for steeply inclined thin middle thickness orebody,
It is characterized by: cutting and rock drilling lane mesoporous are all arranged in ore body in step (3), 0.5 ~ 1m retaining wall is reserved, reduces explosion
To the damage and failure of support country rock, reduces rock wall caving and be mixed into.
5. the sublevel drill and benching ore removal afterwards filling method according to claim 1 suitable for steeply inclined thin middle thickness orebody,
It is characterized by: blasthole uses explosive loading trolley powder charge in step (3), explosive uses ammonia oil granular explosive, and it is micro- to carry out millisecond
Poor explosion, first explosion center blasthole, rear explosion corner blasthole;Each segmentation falls mine in stepped explosion by several times from top to bottom, each to dig
Rock level loosens ore removal using diesel LHD, and ore removal level carries out concentrating mining using electric LHD.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110656939A (en) * | 2019-09-12 | 2020-01-07 | 北京科技大学 | Large-stage efficient mining method for steeply inclined medium-thickness ore body meeting water argillization surrounding rock |
CN112963147A (en) * | 2021-03-17 | 2021-06-15 | 内蒙古包头鑫达黄金矿业有限责任公司 | Medium-length hole blasting mining process for steeply inclined thin ore body |
CN114215519A (en) * | 2021-11-30 | 2022-03-22 | 西北矿冶研究院 | Multi-scheme combined mining method for steeply inclined thick ore body with variable thickness |
CN114856563A (en) * | 2022-06-02 | 2022-08-05 | 紫金矿业集团股份有限公司 | Dead-weight ore-falling mining method for deep-hole pre-cracked ore in downward stage of broken ore rock |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110656939A (en) * | 2019-09-12 | 2020-01-07 | 北京科技大学 | Large-stage efficient mining method for steeply inclined medium-thickness ore body meeting water argillization surrounding rock |
CN112963147A (en) * | 2021-03-17 | 2021-06-15 | 内蒙古包头鑫达黄金矿业有限责任公司 | Medium-length hole blasting mining process for steeply inclined thin ore body |
CN112963147B (en) * | 2021-03-17 | 2022-01-11 | 内蒙古包头鑫达黄金矿业有限责任公司 | Medium-length hole blasting mining process for steeply inclined thin ore body |
CN114215519A (en) * | 2021-11-30 | 2022-03-22 | 西北矿冶研究院 | Multi-scheme combined mining method for steeply inclined thick ore body with variable thickness |
CN114215519B (en) * | 2021-11-30 | 2023-11-07 | 西北矿冶研究院 | Multi-scheme combined mining method for thick ore body with steep inclination of thickness change |
CN114856563A (en) * | 2022-06-02 | 2022-08-05 | 紫金矿业集团股份有限公司 | Dead-weight ore-falling mining method for deep-hole pre-cracked ore in downward stage of broken ore rock |
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