CN106223956B - Medium-length hole courtyard mining afterwards filling method - Google Patents
Medium-length hole courtyard mining afterwards filling method Download PDFInfo
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- CN106223956B CN106223956B CN201610717932.7A CN201610717932A CN106223956B CN 106223956 B CN106223956 B CN 106223956B CN 201610717932 A CN201610717932 A CN 201610717932A CN 106223956 B CN106223956 B CN 106223956B
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- courtyard
- nugget
- boring machine
- hole
- drilling
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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 kind of medium-length hole courtyard mining afterwards filling method, nugget is arranged along orebody trend, and the stage is divided on height hanging down；Nugget both ends arrangement adopts quasi- courtyard, and nugget bottom arranges that flat ore removal structure, nugget top arrange raise boring machine chamber, quasi- courtyard adopted using raise boring machine Drilling；Rock drilling, blasting work platform are promoted using raise boring machine lifting system, down-the-hole drill concentrates rock drilling, blasting in groups, concentrating mining, afterwards filling from courtyard both sides Drilling horizontal parallel or annular medium-length hole blasthole.The method is primarily adapted for use in steeply inclined thin to middle thickness orebody, overcome shrinkage method, sublevel open stope method or upward ut and fill stoping there are the problem of, with adopting, to cut quantities few, stope do mechanization operation degree is high, production efficiency is high, the advantages that production capacity is big, and personnel are not necessarily to enter stope operation, and safety condition is good.
Description
Technical field
The invention belongs to field of mining more particularly to a kind of medium-length hole courtyard mining afterwards filling methods.
Background technology
Steeply dipping narrow deposits often use shrinkage method, sublevel open stope method or overhand cut and fill stoping exploitation to middle thickness orebody.Wherein,
Shrinkage method stope exposure area is big, and mechanization degree is low, and labor intensity is big, and operation is dangerous etc.；Sublevel open stoping rule there is
It adopts and cuts than big, the deficiencies of stope Ore loss and dilution rates are high；When being exploited according to slicing and filling mining codes, since work cycle is more,
The deficiencies of process for stoping is complicated, causes low production efficiency, and labor intensity is big, and mining cost is high, and mine capacity is small.Moreover,
Above-mentioned mining methods are required for driving to adopt quasi- courtyard, but it is traditional adopt quasi- upraise method, driving speed is slow, work efficiency is low, peace
Full property is poor.
Invention content
The technical problem to be solved in the present invention is to provide a kind of job safety, mechanization degree is high, labor intensity is small, production
The medium-length hole courtyard that ability is big, the back production time is short is dug up mine afterwards filling method, and it is relatively regular and to seek survival which is primarily adapted for use in ore body
Big, the efficient steeply inclined thin of production capacity power to middle thickness orebody is exploited.
In order to solve the above technical problems, medium-length hole courtyard mining afterwards filling method provided by the invention uses following technical side
Case：Nugget is arranged along orebody trend, and the stage is divided on height hanging down；Nugget both ends arrangement adopts quasi- courtyard, nugget bottom cloth horizontalization
Bottom ore removal structure, nugget top arrange raise boring machine chamber, quasi- courtyard are adopted using raise boring machine Drilling；It is promoted using raise boring machine
System improving rock drilling, blasting work platform；Down-the-hole drill is concentrated from courtyard both sides Drilling horizontal parallel or annular medium-length hole blasthole
Rock drilling, blasting in groups, concentrating mining, afterwards filling.
Ore body is steeply inclined thin to middle thickness orebody.
Above-mentioned medium-length hole courtyard mining afterwards filling method, according to the following steps operation carry out：
A) nugget is arranged along orebody trend, is divided into mineral building and ore pillar, ore pillar includes studding and fore-set；
B) it arranges ore removal gallery along orebody trend, the tunnel that undercuts is arranged along ore body bottom, it is flat with dress mine route unicom ore removal
Lane and the tunnel that undercuts；Nugget both ends arrangement adopts quasi- courtyard, and nugget top is arranged raise boring machine chamber, adopted using raise boring machine Drilling
Quasi- courtyard；
C) after the completion of adopting quasi- courtyard, down-the-hole drill and down-the-hole drill workbench are transferred extremely using raise boring machine lifting system
Work surface；Down-the-hole drill deep blasting hole from courtyard both sides Drilling horizontal parallel or annular；
D) in the tunnel Nei Kuo nations that undercut, caunch and to form the pulling end space of 3-6m high after, with raise boring machine lifting system along day
Workbench and explosive loader are put to charging work face in underground, load bulk explosive using explosive loader, from bottom to top blasting in groups, root
According to it needs to be determined that each explosion number of rows.Ore under explosion is shoveled out from dress mine route, is sent along ore removal gallery by scraper
Into neighbouring drop shaft.In order to protect courtyard, away from this section not powder charge of aperture 4m, explosion back court both sides respectively leave the mine of about 3m wide
Column.
E) after mineral building back production ore removal, according to adjacent stope situation recycling ore pillar, finally filling method is used to handle goaf.
Step (a) chats block length 40-50m, width are orebody thickness, level interval 50-80m, studding width 6-8m, fore-set thickness
Spend 3-6m.
Ore removal gallery is away from ore body lower wall 8-10m, dress mine route spacing 6-8m in step (b).
Blasthole aperture is 50-70mm, hole depth 20-25m, blasthole array pitch 1.0-2.0m, blasthole spacing 0.8- in step (c)
2.5m。
When being exploited using shrinkage method, sublevel open stope method or upward ut and fill stoping for steeply inclined thin to middle thickness orebody
Existing deficiency, inventor establish a kind of medium-length hole courtyard mining afterwards filling method, compared with the existing technology, advantage of the invention
It is：
<1>The present invention carries out back production with stage overall height, and at nugget both ends, arrangement adopts quasi- courtyard, nugget bottom arrangement it is flat go out
Mine structure, raise boring machine chamber is arranged on nugget top, simple in structure, adopts that cut quantities small.
<2>The present invention uses raise boring machine Drilling courtyard, high-quality at well, labor operation condition is good, production safety, machinery
Change degree is high；Stoping operation is from courtyard both sides Drilling horizontal parallel or annular medium-length hole blasthole, using explosive loader powder charge, worker
It works without entering in stope, labor operation condition is good, production safety, mechanization degree are high.
<3>The present invention uses raise boring machine Drilling courtyard, and Completed advance rate is fast, work efficiency is high；Using medium-length hole ore blast, chisel is concentrated
Rock, blasting in groups, scraper ore removal, production capacity is big, and production efficiency is high, at low cost.
Description of the drawings
Fig. 1 is the reference chart using medium-length hole courtyard of the present invention mining afterwards filling method.
Fig. 2 is the cut-away view of the I-I lines in Fig. 1.
In figure：1 ore removal gallery, 2 dress mine routes, 3 courtyard connecting taxiways, 4 adopt quasi- courtyard, and 5 undercut tunnel, 6 raise boring machine caves
Room, deep blasting hole in 7 horizontal parallels, 8 workbenches, 9 studdings, 10 raise boring machines, 11 drill bits, 12 lifting systems, 13 fore-sets, 14 is latent
Drilling machine, 15 explosive loaders.
Specific implementation mode
The basic principle of medium-length hole courtyard mining afterwards filling method of the present invention
For steeply inclined thin to middle thickness orebody, nugget is arranged along orebody trend, and the stage is divided on height hanging down；Nugget both ends
Arrangement adopts quasi- courtyard, and nugget bottom arranges that flat ore removal structure, nugget top arrange raise boring machine chamber；It is bored using raise boring machine
Chisel adopts quasi- courtyard；Rock drilling, blasting work platform are promoted using raise boring machine lifting system；Down-the-hole drill is from courtyard both sides Drilling water
Average row or annular medium-length hole blasthole, concentrate rock drilling, blasting in groups, concentrating mining, afterwards filling.
The method concrete operation step is as follows：
A) nugget is arranged along orebody trend, is divided into mineral building and ore pillar, ore pillar includes studding 9 and fore-set 13；The long 40- of nugget
50m, width are orebody thickness, level interval 50-80m, 9 width 6-8m of studding, 13 thickness 3-6m of fore-set.
B) tunnel 5 that undercuts is arranged along ore body bottom, with dress along orebody trend arrangement ore removal gallery 1 away from ore body lower wall 8-10m
2 unicom ore removal gallery of mine route and the tunnel that undercuts, dress mine route spacing 6-8m；Nugget both ends arrangement adopts quasi- courtyard 4, nugget top
It arranges raise boring machine chamber 6, quasi- courtyard is adopted using 10 Drilling of raise boring machine；Quasi- courtyard 4 is adopted to get in touch with by courtyard with ore removal gallery 1
3 unicom of road；
C) after the completion of adopting quasi- courtyard, the drill bit 11 of raise boring machine 10 is unloaded；It is connected using raise boring machine lifting system 12
Workbench 8, down-the-hole drill 14 are fixed on workbench 8, after the decentralization to rock drilling working face of courtyard 4；Down-the-hole drill is from day
Deep blasting hole 7 in well both sides Drilling horizontal parallel (or annular), aperture 50-70mm, hole depth 20-25m, blasthole array pitch 1.0-
2.0m, blasthole spacing 0.8-2.5m；
D) in the 5 Nei Kuo nations of tunnel that undercut, caunch and to form the pulling end space of 3-6m high after, raise boring machine lifting system 12 connects
Workbench 8,15 powder charge of explosive loader is fixed on workbench 8, is transferred to charging work face along courtyard, using explosive loader 15
Bulk explosive is loaded, determines each explosion number of rows as needed, blasting in groups, the ore under explosion pass through scraper from bottom to top
Machine is shoveled out from dress mine route 2, is sent into neighbouring drop shaft along ore removal gallery 1.；In order to protect courtyard, not away from aperture 4m this section
Powder charge, explosion back court both sides respectively leave the ore pillar of 3m wide；
E) it after mineral building back production ore removal, according to adjacent stope situation recycling studding 9 and fore-set 13, finally uses at filling method
Manage goaf.
Claims (4)
- The afterwards filling method 1. a kind of medium-length hole courtyard is dug up mine, it is characterised in that：Nugget is arranged along orebody trend, is divided on height hanging down For the stage；Nugget both ends arrangement adopts quasi- courtyard, and nugget bottom arranges that flat ore removal structure, nugget top arrange raise boring machine cave Quasi- courtyard is adopted in room using raise boring machine Drilling；Rock drilling, blasting work platform, hidden hole drilling are promoted using raise boring machine lifting system Machine concentrates rock drilling, blasting in groups, concentrating mining, afterwards filling from courtyard both sides Drilling horizontal parallel or annular medium-length hole blasthole； The ore body is steeply inclined thin to middle thickness orebody；The method operates progress according to the following steps：A) nugget is arranged along orebody trend, is divided into mineral building and ore pillar, ore pillar includes studding and fore-set；B) arrange ore removal gallery along orebody trend, along ore body bottom, arrangement undercuts tunnel, with dress mine route unicom ore removal gallery with Undercut tunnel；Nugget both ends arrangement adopts quasi- courtyard, and nugget top arranges raise boring machine chamber, quasi- day is adopted using raise boring machine Drilling Well；C) after the completion of adopting quasi- courtyard, down-the-hole drill and down-the-hole drill workbench are transferred to operation using raise boring machine lifting system Face；Down-the-hole drill deep blasting hole from courtyard both sides Drilling horizontal parallel or annular；Concentration rock drilling, explosive loader powder charge, from bottom to top Blasting in groups, scraper ore removal；D) after mineral building back production ore removal, according to adjacent stope situation recycling ore pillar, finally filling method is used to handle goaf.
- The afterwards filling method 2. medium-length hole courtyard according to claim 1 is dug up mine, it is characterised in that step (a) chats block length 40-50m, width are orebody thickness, level interval 50-80m, studding width 6-8m, fore-set thickness 3-6m.
- The afterwards filling method 3. medium-length hole courtyard according to claim 1 is dug up mine, it is characterised in that ore removal gallery in step (b) Away from ore body lower wall 8-10m, dress mine route spacing 6-8m.
- The afterwards filling method 4. medium-length hole courtyard according to claim 1 is dug up mine, it is characterised in that blasthole aperture in step (c) For 50-70mm, hole depth 20-25m, blasthole array pitch 1.0-2.0m, blasthole spacing 0.8-2.5m.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610521210 | 2016-06-30 | ||
| CN2016105212104 | 2016-06-30 |
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| CN106223956A CN106223956A (en) | 2016-12-14 |
| CN106223956B true CN106223956B (en) | 2018-08-21 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107448201A (en) * | 2017-05-31 | 2017-12-08 | 陕西冶金设计研究院有限公司 | A kind of steeply inclined thin is to the flat ore removal structure of middle strong vein and method |
| CN108086979B (en) * | 2017-11-27 | 2019-09-20 | 西北矿冶研究院 | Mining process of vertical deep hole columnar cartridge bag ore breaking stage by using chamber method |
| CN108590652B (en) * | 2018-05-09 | 2019-05-21 | 中冶北方（大连）工程技术有限公司 | A kind of sublevel caving method without sill pillar dividing a nugget along orebody trend |
| CN109322683A (en) * | 2018-10-24 | 2019-02-12 | 临沂会宝岭铁矿有限公司 | Underground Large chamber medium-length hole controls blasting construction method |
| CN110966005A (en) * | 2019-11-22 | 2020-04-07 | 西北矿冶研究院 | Novel medium-length hole ore-breaking stage chamber method |
| CN111779485A (en) * | 2020-07-01 | 2020-10-16 | 长沙矿山研究院有限责任公司 | Combined hole segmented open stope subsequent filling mining method |
| CN111963175B (en) * | 2020-07-28 | 2022-06-17 | 广西大学 | Thick ore body mining method |
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