CN106522955A - Studding recovery method for reconstructing covering layer through dead zone wastefill and top surrounding rock spallation collaboratively - Google Patents
Studding recovery method for reconstructing covering layer through dead zone wastefill and top surrounding rock spallation collaboratively Download PDFInfo
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- CN106522955A CN106522955A CN201611105285.0A CN201611105285A CN106522955A CN 106522955 A CN106522955 A CN 106522955A CN 201611105285 A CN201611105285 A CN 201611105285A CN 106522955 A CN106522955 A CN 106522955A
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- studding
- country rock
- coating
- dead zone
- ore
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- 239000011435 rock Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000011084 recovery Methods 0.000 title claims abstract description 26
- 238000005553 drilling Methods 0.000 claims abstract description 21
- 230000003137 locomotive effect Effects 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims description 33
- 239000011248 coating agent Substances 0.000 claims description 30
- 239000002699 waste material Substances 0.000 claims description 23
- 239000010410 layer Substances 0.000 claims description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004880 explosion Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 239000010878 waste rock Substances 0.000 abstract 2
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 239000000243 solution Substances 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
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Provided is a studding recovery method for reconstructing a covering layer through dead zone wastefill and top surrounding rock spallation collaboratively. The method comprises the specific steps that after waste rock is exploited out from a chamber and a top column through an open-stope method, a goaf is filled with the waste rock to reach a certain height, surrounding rock at the top of a studding is collapsed off once, and the studding covering layer is reconstructed collaboratively; the studding is divided into a plurality of layers, and a drilling drift is tunneled in the center of the bottom of the layers; an end non-through cutting groove is formed in the tail end of the drilling drift through a cutting courtyard slot broaching method; the cutting groove serves as the ore breaking free face, and the studding is subjected to sequential top-to-bottom interlamination advance and in-layers retreating type recovery; and broken ore is shoveled to a winze through a scooptram and is conveyed to the surface of the earth by an ore pocket through an electric locomotive. The invention first provides the method for collaboratively reconstructing the studding covering layer, the safety of studding recovery is improved, and the ore recovery rate is increased effectively.
Description
Technical field
The present invention relates to a kind of metal mine underground mining studding recovery method, specifically a kind of dead zone waste fill and top
The studding recovery method of coating is reproduced in portion's country rock avalanche collaboration, it is adaptable to thick more than country rock moderately stable, in horizontal low-angle dip-
The recovery of studding is left in extremely thick ore body or inclined thick-extremely thick ore body open-stope method back production.
Background technology
The guiding theory of openstope method is that nugget is divided into mineral building and studding, in two steps rapid back production, first digs up mine room again
Studding is adopted, mineral building back production remains a large amount of studdings after terminating.Ore deposit thick for more than country rock moderately stable, in horizontal low-angle dip-extremely thick
Studding is left in body or inclined thick-extremely thick ore body open-stope method back production, and conventional recovery method is mainly slicing and caving method, a large amount of
Caving Method with Large Space, medium-length hole sublevel caving method etc..When slicing and caving method reclaims studding, shrink wall is needed, cause mine loss and dilution high, when
When rock pressure is big, studding is yielding, and security performance is relatively low, and causes labor productivity to reduce；A large amount of Caving Method with Large Space reclaim studding
When, need to carry out in the case where ore pillar and dead zone condition are preferable, it is higher to the requirement such as explosion, production operation, and ore drawing under the conditions of overlying strata
Mine loss and dilution is big；When medium-length hole sublevel caving method reclaims studding, increase ore dilution rate as barren rock is mixed into more,
Can only partially recycled studding and make ore loss ratio increase, the response rate substantially reduce, and the process high labor intensive, operation be stranded
Difficult, goaf exposed area is big, easily causes country rock avalanche, wall caving to be caving, roof fall and surface subsidence, it is impossible to ensure that back production is pacified
Entirely.
The content of the invention
Shortcoming of the present invention for traditional studding recovery method, under the guidance of collaboration exploitation thought, there is provided a kind of dead zone
Waste fill reproduces the method that coating reclaims studding with top country rock avalanche collaboration.When it can overcome studding to reclaim, adopt
The shortcoming that goaf exposed area is excessive, ore loss ratio is high that conventional recovery methods are caused, reduces goaf exposed area, drop
Low ore losses, makes Mined-out area disposal and studding reclaim organic collaboration, finally realizes that studding is safe efficient, inexpensive recovery.
For solving above-mentioned technical barrier, the technical solution used in the present invention is：A kind of dead zone waste fill and top country rock
The method that coating reclaims studding is reproduced in avalanche collaboration, is comprised the steps：
(1) by ore body thick more than country rock moderately stable, in horizontal low-angle dip-extremely thick or inclined thick-extremely thick ore body edge
Trend is divided into nugget, and nugget is divided into mineral building and studding, and mineral building is together with waste fill goaf after the extraction of fore-set open-stope method up to one
Fixed height, calculates the remaining dead zone of filling and forms explosion prose style free from parallelism volume needed for coating,
(2) if studding is divided dried layer, in layering bottom center driving drilling drift；In drilling drift end using cutting
Courtyard kerve method forms the non-penetrating formula cutting groove in end,
(3) in a column top country rock pick drilling drift, fan shaped medium length hole is laid according to filling prose style free from parallelism volume is calculated, disposably
The country rock of column top between avalanche, collaboration reproduce studding coating, arrange vertical fan-shaped in each drilling drift end after confirming safety
Medium-length hole, with cutting groove as the ore caving scope of freedom, implements interlayer drawing back in advanced, layer successively from top to bottom to studding,
(4) using scraper mechanical shovel to drop shaft, Jing ore pockets are transported to earth's surface by electric locomotive to broken ore, until back production is tied
Beam.
Described dead zone waste fill reproduces the concrete behaviour of the studding recovery method of coating with top country rock avalanche collaboration
As step it is：
(1) column length 15m between the nugget is divided in mineral building and studding, high 50m, a width of orebody thickness calculate remaining empty
Area's volume and prose style free from parallelism volume needed for formation coating；
(2) layering bottom center driving specification for 3m × 3m drilling drift, drilling drift end adopt specification for
The slot raise kerve method of 1.5m × 2.5m forms the non-penetrating formula cutting groove in end；
(3) in a column top country rock driving drilling drift and according to deep in prose style free from parallelism volume arrangement needed for calculating vertically sector
Studding coating is reproduced in hole, the country rock of column top between disposable avalanche, collaboration, after confirming safety, implements interlayer to studding from upper
And under drawing back in advanced, layer successively, until reclaim finishing.
After goaf filling, remaining space is highly 4～5m.
The studding is divided into 4 layers.
The studding layer height is 10～15m.
Slot raise specification is 1.5m × 2.5m.
The waste fill forms 7～8m coatings with top country rock avalanche.
Prose style free from parallelism volume needed for the formation coating is more than roof rock avalanche volume.
The present invention prominent technical characterstic be：
(1) increase the studding response rate, reduce ore dilution rate；
(2) Mined-out area disposal is reclaimed into ingenious collaboration with studding, makes the more safe and efficient recovery of studding；
(3) studding slicing, arrangement and process for stoping it is flexible；
(4) motility of kerve method is big, strong adaptability；
(5) prevent country rock to be caving, limit surface subsidence.
Description of the drawings
Fig. 1 is the studding recovery side that coating is reproduced in dead zone waste fill of the present invention and top country rock avalanche collaboration
The structural representation of method.
Fig. 2 is the studding recovery side that coating is reproduced in dead zone waste fill of the present invention and top country rock avalanche collaboration
The side view of method.
Fig. 3 is the studding recovery side that coating is reproduced in dead zone waste fill of the present invention and top country rock avalanche collaboration
The top view of the studding layering of method.
It is labeled as in figure：The layering layering layering 5- Filling mine-out areas of 4- the 4th of 3- the 3rd of 1- first layers 2- second region
6- studding 7- blasthole 8- ore-rocks demarcation line 9- coating 10- rock drilling center 11- country rock burst regions, 12- slot raises,
13- drilling drifts.
Specific embodiment
Technical scheme is further described below by way of drawings and Examples.
As shown in Figure 1, Figure 2 and Figure 3, dead zone waste fill of the present invention reproduces covering with top country rock avalanche collaboration
The studding recovery method of layer, comprises the steps：
(1) by ore body thick more than country rock moderately stable, in horizontal low-angle dip-extremely thick or inclined thick-extremely thick ore body edge
Trend is divided into nugget, and nugget is divided into mineral building and studding, after mineral building back production terminates, column length 50m between residual, high 15m, and a width of ore body
Thickness, is layered to studding according to per layer of 10～15m.
(2) as shown in figure 1, calculating remaining dead zone volume after forming filling area 5 after waste fill and being formed needed for coating
Explosion prose style free from parallelism volume；It is the drilling drift 11 of 3m × 3m in layering bottom center driving specification, adopts in drilling drift end and advise
Lattice form the non-penetrating formula cutting groove in end for the 14 kerve method of slot raise of 1.5m × 2.5m.
(3) simultaneously vertical fan shaped medium length hole 7 is arranged according to remaining dead zone volume 13 in a column top country rock pick drilling drift 11,
The country rock of column top between disposable avalanche, collaboration reproduce studding coating 9, and now overburden cover is 7～8m.
(4) vertical fan shaped medium length hole is arranged in each drilling drift end after confirming safety, with cutting groove as the ore caving scope of freedom,
Interlayer drawing back in advanced, layer successively from top to bottom, using scraper mechanical shovel to drop shaft, Jing ore pockets are by motor for broken ore
Car is transported to earth's surface, until studding is reclaimed finishing.
After goaf filling, remaining space is highly 4～5m.
The studding is divided into 4 layers.
The studding layer height is 10～15m.
Slot raise specification is 1.5m × 2.5m.
The waste fill forms 7～8m coatings with top country rock avalanche.
Prose style free from parallelism volume needed for the formation coating is more than roof rock avalanche volume.
Claims (8)
1. a kind of dead zone waste fill cooperates with the studding recovery method for reproducing coating with top country rock avalanche, it is characterized in that, wraps
Include following steps：
(1) by ore body thick more than country rock moderately stable, in horizontal low-angle dip-extremely thick or inclined thick-extremely thick ore body across pitch
Nugget is divided into, nugget is divided into mineral building and studding, and mineral building is together with waste fill goaf after the extraction of fore-set open-stope method up to certain height
Degree, calculates the remaining dead zone of filling and forms explosion prose style free from parallelism volume needed for coating,
(2) if studding is divided dried layer, in layering bottom center driving drilling drift；Slot raise is adopted in drilling drift end
Kerve method forms the non-penetrating formula cutting groove in end,
(3) in a column top country rock pick drilling drift, fan shaped medium length hole, disposable avalanche are laid according to filling prose style free from parallelism volume is calculated
Between column top country rock, collaboration reproduces studding coating, confirms deep in the vertical sector of each drilling drift end arrangement after safety
Hole, with cutting groove as the ore caving scope of freedom, implements interlayer drawing back in advanced, layer successively from top to bottom to studding,
(4) using scraper mechanical shovel to drop shaft, Jing ore pockets are transported to earth's surface by electric locomotive to broken ore, until back production terminates.
2. dead zone waste fill according to claim 1 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, concrete operation step is：
(1) column length 15m between the nugget is divided in mineral building and studding, high 50m, a width of orebody thickness calculate remaining dead zone body
Product and prose style free from parallelism volume needed for formation coating；
(2) in the drilling drift that layering bottom center driving specification is 3m × 3m, specification is adopted for 1.5m in drilling drift end
The slot raise kerve method of × 2.5m forms the non-penetrating formula cutting groove in end；
(3) the vertical fan shaped medium length hole of prose style free from parallelism volume arrangement needed for a column top country rock tunnels drilling drift and foundation is calculated, one
The country rock of column top between the avalanche of secondary property, collaboration reproduce studding coating, after confirming safety, studding is implemented interlayer from top to bottom according to
Drawing back in secondary advanced, layer, until reclaim finish.
3. dead zone waste fill according to claim 2 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, after goaf filling, remaining space is highly 4～5m.
4. dead zone waste fill according to claim 2 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, the studding is divided into 4 layers.
5. dead zone waste fill according to claim 1 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, the studding layer height is 10～15m.
6. dead zone waste fill according to claim 1 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, slot raise specification is 1.5m × 2.5m.
7. dead zone waste fill according to claim 1 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, the waste fill forms 7～8m coatings with top country rock avalanche.
8. dead zone waste fill according to claim 2 cooperates with the studding recovery side for reproducing coating with top country rock avalanche
Method, is characterized in that, prose style free from parallelism volume needed for the formation coating is more than roof rock avalanche volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105285.0A CN106522955B (en) | 2016-12-05 | 2016-12-05 | Dead zone waste fill cooperates with the studding recovery method of reconstruction coating with top country rock avalanche |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105285.0A CN106522955B (en) | 2016-12-05 | 2016-12-05 | Dead zone waste fill cooperates with the studding recovery method of reconstruction coating with top country rock avalanche |
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| CN106522955B CN106522955B (en) | 2018-10-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594986A (en) * | 2018-10-15 | 2019-04-09 | 贵州锦丰矿业有限公司 | A kind of foam type creates medium-length hole back production explosion collocation structure and its construction method |
| CN111706328A (en) * | 2020-07-29 | 2020-09-25 | 中钢集团马鞍山矿山研究总院股份有限公司 | Mining method for treating goaf left-over studs by filling method |
| CN112282837A (en) * | 2020-10-27 | 2021-01-29 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel underground mine mining and charging arrangement form |
| CN115095325A (en) * | 2022-08-25 | 2022-09-23 | 矿冶科技集团有限公司 | Thin ore body mining method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594986A (en) * | 2018-10-15 | 2019-04-09 | 贵州锦丰矿业有限公司 | A kind of foam type creates medium-length hole back production explosion collocation structure and its construction method |
| CN111706328A (en) * | 2020-07-29 | 2020-09-25 | 中钢集团马鞍山矿山研究总院股份有限公司 | Mining method for treating goaf left-over studs by filling method |
| CN112282837A (en) * | 2020-10-27 | 2021-01-29 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Novel underground mine mining and charging arrangement form |
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| CN115095325B (en) * | 2022-08-25 | 2022-11-29 | 矿冶科技集团有限公司 | Thin ore body mining method |
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| Publication number | Publication date |
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| CN106522955B (en) | 2018-10-12 |
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