CN108590652A - A kind of sublevel caving method without sill pillar dividing a nugget along orebody trend - Google Patents
A kind of sublevel caving method without sill pillar dividing a nugget along orebody trend Download PDFInfo
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- CN108590652A CN108590652A CN201810437250.XA CN201810437250A CN108590652A CN 108590652 A CN108590652 A CN 108590652A CN 201810437250 A CN201810437250 A CN 201810437250A CN 108590652 A CN108590652 A CN 108590652A
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- ore
- nugget
- segmentation
- exploiting field
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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
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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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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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
- E21F13/00—Transport specially adapted to underground conditions
Abstract
The invention discloses a kind of sublevel caving method without sill pillar dividing a nugget along orebody trend, including dividing nugget along orebody trend, nugget is divided into stage and segmentation, road connecting taxiway and route are tunneled in nugget is respectively segmented, developing and system include return aircourse, exploiting field return air raise, stope box, exploiting field ramp 4 and exploiting field air inlet courtyard；The mining sequence of nugget is that from top to bottom, segmentation mining sequence is to move back to adopt from both ends to centre；To fanhole(s) in construction in route, using millisecond short delay blasting；First segmentation ore falls the ore of recycling 1/3 after mine, ore coating of remaining ore as next segmentation ore recuperation.After a upper segmentation is advanced is once segmented 30m or more, the next stage can back production simultaneously, after each substoping, block route connecting taxiway in time.Present invention has the advantages that infrastructure project amount and adopting that quasi- quantities is few, production time and the investment in mine are highly shortened, ore mining time is improved.
Description
Technical field
The invention belongs to underground mining method technical field more particularly to grade of ore height, ore body item number 1 ~ 2, ore bodies
A kind of thin and middle thick sublevel caving method without sill pillar dividing a nugget along orebody trend.
Background technology
Ore body division is usually multiple nuggets by across pitch sublevel caving method without sill pillar, and each nugget arranges that an exploiting field slips
Then well will fall mine ore using electric LHD and have bad luck to stope box into, while long range is arranged in stage casing bottom
Rail mounted transport system undertakes the transport task of ore-rock.But in some grade of ores height, ore body item number only has 1 ~ 2, and ore body is thin
And in the exploitation of middle thickness, the infrastructure project of long-distance transportation system and a plurality of stope box is carried out, this infrastructure project occupies
A large amount of time cost has tremendous influence to shifting to an earlier date ore removal and front capital input.
Invention content
The purpose of the present invention allows avalanche for earth's surface, while the grade of ore is high, ore body item number 1 ~ 2, ore body it is thin and in
Thickness, infrastructure project amount and adopt the features such as quasi- quantities is few, and ore removal is fast, and mine loss and dilution is small along orebody trend divide a mine
The sublevel caving method without sill pillar of block.
The purpose of the present invention is be achieved through the following technical solutions.
A kind of sublevel caving method without sill pillar dividing a nugget along orebody trend of the present invention, it is characterised in that including under
Row step：
The first step：Nugget is divided along orebody trend, nugget length is that orebody trend is long, and nugget is divided into stage and segmentation,
Nugget be respectively segmented it is intermediate tunnel road connecting taxiway, then respectively to both ends driving road in ore body, the 1/2 of a length of nugget length of route,
Development system includes return aircourse, exploiting field return air raise, stope box, exploiting field ramp and exploiting field air inlet day with Barebone is adopted
Well；
Second step：The mining sequence of nugget is that from top to bottom, segmentation mining sequence is to move back to adopt from both ends to centre；
Third walks：It is utilized in route in rock drilling equipment construction to fanhole(s), using millisecond short delay blasting；
4th step：The fresh distinguished and admirable air duct through in exploiting field air inlet courtyard, route enters Stope face, the dirt behind cleaning face
Wind, to return air level, is then discharged through return aircourse, returnairshaft through route, exploiting field return air raise connecting taxiway, exploiting field return air raise
Earth's surface；
5th step：To the sled hair work of empty jacking row or gib after stope ventilation, it is ensured that the safety of follow-up work；
6th step：The ore fallen after mine is had bad luck by diesel LHD to stope box, then by locomotive haulage mine car to main shaft
Parking lot, finally by main shaft hooist to earth's surface；
7th step：First segmentation ore falls the ore of recycling 1/3 after mine, ore of remaining ore as next segmentation ore recuperation
Coating.After a upper segmentation is advanced is once segmented 30m or more, the next stage can back production simultaneously.After each substoping,
Route connecting taxiway is blocked in time.
6th step：For buried depth be less than 300m ore body, fall the ore after mine by diesel LHD down to
Then underground truck directly transports earth's surface by underground trucks entering ramp.
The stage a height of 60m ~ 100m, is segmented into high 10m ~ 20m.
The beneficial effects of the invention are as follows the long routes of the present invention, are not limited, are filled by cable length using diesel LHD
It point utilizes its maneuverability, and this mining methods infrastructure project amount and to adopt quasi- quantities few, highly shortened mine
Production time and investment improve ore mining time.
Description of the drawings
Fig. 1 is the sublevel caving method without sill pillar front sectional elevation A-A that the present invention divides a nugget along orebody trend;
Fig. 2 is the left view B-B sectional views of Fig. 1 of the present invention.
Fig. 3 is that Fig. 1 of the present invention overlooks C-C sectional views.
Courtyard is entered the wind in 1. return aircourse in figure, 2. routes, 3. route connecting taxiways, 4. exploiting field ramps, 5. exploiting fields,
6. exploiting field return air raise, 7. stope boxes, 8. blastholes, 9. broken ores.
Specific implementation mode
The following further describes the present invention with reference to the drawings.
As shown in Figs. 1-3, a kind of sublevel caving method without sill pillar dividing a nugget along orebody trend of the invention, it is special
Sign is to include the following steps：
The first step：Nugget is divided along orebody trend, nugget length is that orebody trend is long, and nugget stage high 60m is segmented high 20m,
Nugget is respectively segmented intermediate driving road connecting taxiway 3, then respectively to both ends driving road 2 in ore body；Development system and adopt Barebone
Courtyard 5 is entered the wind including return aircourse 1, exploiting field return air raise 6, stope box 7, exploiting field ramp 4 and exploiting field；
Second step：The mining sequence of nugget is that from top to bottom, segmentation mining sequence is to move back to adopt from both ends to centre；
Third walks：It is utilized in route 2 in rock drilling equipment construction to fanhole(s) 8, using millisecond short delay blasting；
4th step：It is fresh it is distinguished and admirable enter Stope face through exploiting field air inlet courtyard 5, the air duct in route, behind cleaning face
Waste air is horizontal to return air through route, exploiting field return air raise connecting taxiway, exploiting field return air raise 6, then through return aircourse 1, returnairshaft
Earth's surface is discharged；
5th step：To the sled hair work of empty jacking row or gib after stope ventilation, it is ensured that the safety of follow-up work；
6th step：The ore 9 fallen after mine is had bad luck by diesel LHD to stope box 7, then by locomotive haulage mine car to master
Well parking lot, finally by main shaft hooist to earth's surface；It is less than the ore body of 300m for buried depth, falls the ore after mine by diesel oil scraper
Then machine directly transports earth's surface down to underground truck by underground trucks entering ramp 4；
7th step：First segmentation ore 9 falls the ore of recycling 1/3 after mine, mine of remaining ore as next segmentation ore recuperation
Stone coating, after a upper segmentation is advanced is once segmented 30m or more, next stage can back production simultaneously, each substoping knot
Shu Hou in time blocks route connecting taxiway 3.
Claims (3)
1. a kind of sublevel caving method without sill pillar dividing a nugget along orebody trend, it is characterised in that include the following steps：
The first step：Nugget is divided along orebody trend, nugget length is that orebody trend is long, and nugget is divided into stage and segmentation,
Nugget be respectively segmented it is intermediate tunnel road connecting taxiway, then respectively to both ends driving road in ore body, the 1/2 of a length of nugget length of route,
Development system includes return aircourse 1, exploiting field return air raise 6, stope box 7, exploiting field ramp 4 and exploiting field air inlet with Barebone is adopted
Courtyard 5；
Second step：The mining sequence of nugget is that from top to bottom, segmentation mining sequence is to move back to adopt from both ends to centre；
Third walks：It is utilized in route in rock drilling equipment construction to fanhole(s), using millisecond short delay blasting；
4th step：The fresh distinguished and admirable air duct through in exploiting field air inlet courtyard, route enters Stope face, the dirt behind cleaning face
Wind, to return air level, is then discharged through return aircourse, returnairshaft through route, exploiting field return air raise connecting taxiway, exploiting field return air raise
Earth's surface；
5th step：To the sled hair work of empty jacking row or gib after stope ventilation, it is ensured that the safety of follow-up work；
6th step：The ore fallen after mine is had bad luck by diesel LHD to stope box, then by locomotive haulage mine car to main shaft
Parking lot, finally by main shaft hooist to earth's surface；
7th step：First segmentation ore falls the ore of recycling 1/3 after mine, ore of remaining ore as next segmentation ore recuperation
Coating；
After a upper segmentation is advanced is once segmented 30m or more, the next stage can back production simultaneously, after each substoping, and
When block route connecting taxiway.
2. the sublevel caving method without sill pillar according to claim 1 for dividing a nugget along orebody trend, it is characterised in that
6th step：It is less than the ore body of 300m for buried depth, falls the ore after mine by diesel LHD down to underground truck,
Then earth's surface is directly transported by underground trucks entering ramp.
3. the sublevel caving method without sill pillar according to claim 1 for dividing a nugget along orebody trend, it is characterised in that
The stage a height of 60m ~ 100m, is segmented into high 10m ~ 20m.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734411A (en) * | 2020-07-07 | 2020-10-02 | 中冶北方（大连）工程技术有限公司 | Ore blending method of sill pillar-free sublevel caving method with vertically-arranged approach |
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| CN104358574A (en) * | 2014-09-04 | 2015-02-18 | 广东安元矿业勘察设计有限公司 | Horizontal room-and-pillar mining method of slightly inclined orebody |
| CN105298492A (en) * | 2015-11-03 | 2016-02-03 | 化工部长沙设计研究院 | Room-and-pillar mining method for mining gentle dip thin ore body |
| AU2014344670A1 (en) * | 2013-10-28 | 2016-04-07 | China University Of Mining And Technology | Solid cementation backfill roadway type mining method for ultra-thick seam |
| CN105952450A (en) * | 2016-06-20 | 2016-09-21 | 中钢集团马鞍山矿山研究院有限公司 | Novel method for collaboratively exploiting underground double stopes of underground mine |
| CN106223956A (en) * | 2016-06-30 | 2016-12-14 | 广西大学 | Medium-length hole courtyard mining afterwards filling method |
| CN106761745A (en) * | 2017-03-06 | 2017-05-31 | 长沙矿山研究院有限责任公司 | The outer sublevel open stope method of arteries and veins |
| CN107093364A (en) * | 2017-06-26 | 2017-08-25 | 辽宁科技大学 | The indoor ore drawing device of many segmentations of automatic height adjustment and polycrystalline substance and method |
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2018
- 2018-05-09 CN CN201810437250.XA patent/CN108590652B/en active Active
Patent Citations (7)
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| AU2014344670A1 (en) * | 2013-10-28 | 2016-04-07 | China University Of Mining And Technology | Solid cementation backfill roadway type mining method for ultra-thick seam |
| CN104358574A (en) * | 2014-09-04 | 2015-02-18 | 广东安元矿业勘察设计有限公司 | Horizontal room-and-pillar mining method of slightly inclined orebody |
| CN105298492A (en) * | 2015-11-03 | 2016-02-03 | 化工部长沙设计研究院 | Room-and-pillar mining method for mining gentle dip thin ore body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734411A (en) * | 2020-07-07 | 2020-10-02 | 中冶北方（大连）工程技术有限公司 | Ore blending method of sill pillar-free sublevel caving method with vertically-arranged approach |
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