CN109630117A - Comprehensive shrinkage combination method suitable for variable-inclination-angle ore body - Google Patents
Comprehensive shrinkage combination method suitable for variable-inclination-angle ore body Download PDFInfo
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- CN109630117A CN109630117A CN201811366858.4A CN201811366858A CN109630117A CN 109630117 A CN109630117 A CN 109630117A CN 201811366858 A CN201811366858 A CN 201811366858A CN 109630117 A CN109630117 A CN 109630117A
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- nugget
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- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000005065 mining Methods 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 210000003462 vein Anatomy 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 26
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 8
- 239000011707 mineral Substances 0.000 claims description 8
- 239000011435 rock Substances 0.000 claims description 8
- 230000001788 irregular Effects 0.000 claims description 6
- 210000001367 artery Anatomy 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 230000005641 tunneling Effects 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002699 waste material 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)
- Electrically Operated Instructional Devices (AREA)
Abstract
The invention relates to a comprehensive shrinkage ore combination method suitable for variable inclination angle ore bodies, the height of each stage is 40-60 m, ore blocks are divided along the trend in each stage, the length of each ore block is 40-60 m, the width of each intermediate column and each bottom column is 5.0-6.0 m, and the height of each top column is 8.0-10.0 m; the mining work comprises a transport roadway at a tunneling stage, a ventilation roadway at an intra-vein stage, a central patio, a lateral patio and a connecting road; the cutting work is to take the bottom-drawing roadway as a free surface to form a bottom-drawing space and avoid leakage, and open up a free surface for the recovery work; stoping: firstly, digging a cutting drift or cutting a mountain at the lower part of the ore block or one side of the ore block, and then carrying out stoping along the inclination or the trend, firstly stoping the lower part of the ore block by a comprehensive method, and then stoping the upper part of the ore block by an ore retention method. The invention has the advantages that: starting from the characteristic of inclination angle change of the ore vein, the corresponding mining method is flexibly selected, so that the phenomena of easiness in eating and losing, rich and losing and poor eating and thick and thin losing can be avoided, and the ore recovery rate is improved.
Description
Technical field
The invention belongs to underground mine technical fields, are related to a kind of consolidate suitable for ore-rock or compared with the firm changeable mine in inclination angle
The actual mining technology of body.
Background technique
In metal mine underground mining, due to Geological Reasons, inclination angle changeable mineral ore or ore body, such mine can be often met
Arteries and veins or ore body type are more, and variation degree is different often within a stage or nugget, and the slanting angle of ore body, country rock and ore body are stablized
Property, orebody thickness and grade of ore etc. are varied or difference, back production difficulty are also multifarious, existing single mining methods without
Method meets production needs, and seriously affects production security, stoping strength, mining cost and mine damage dilution, and exploitation difficulty is larger,
It will also result in the loss or waste of the limited mineral resources in underground simultaneously, for this reason, it is necessary to further study such difficulty complicated and changeable
The stoping method of mining body.
Summary of the invention
It is suitable for the changeable ore body in inclination angle the object of the present invention is to provide one kind and combines stoping method, it is particularly applicable to upper disks
For country rock generally more than moderately stable, lower wall country rock and mineral ore are generally firm or built on the sand；In a nugget or stope, thereon
The mineral ore of lower part or slanting angle of ore body difference change, and underset or the slanting angle of ore body are 0 ° ~ 30 °, and top is generally 60 ° or more,
Mineral ore is with a thickness of between 1.5 ~ 4.0m.
To achieve the above object, the technical scheme adopted by the invention is that: a kind of suitable changeable ore body in inclination angle stays comprehensively
Mine combination method, structure and parameter: level interval be 40 ~ 60m, within the stage, across pitch divide nugget, nugget length be 40 ~
60m, studding, foundation width are 5.0 ~ 6.0m, and top pillar height is 8.0 ~ 10.0m；
Adopt quasi- with cutting: mining preparation work have phase of boring haulage way, stage vent level in arteries and veins, central courtyard, flank courtyard,
Connecting taxiway；Cutting work has using the tunnel that undercuts as the scope of freedom, forms pulling end space and wards off leakage, opens up the scope of freedom for actual mining,
It creates favorable conditions simultaneously for explosion；
Actual mining: it after the completion of adopting quasi- engineering, first goes up a hill in nugget lower part or one side digging cutting gallery or cutting, and thus
Across strike is moved towards to carry out back production, in block stoping, first uses breasting method back production nugget lower part, then uses shrinkage method back production mine
Block top；In breasting method back production, according to slanting angle of ore body difference, using loader-and-carry dumper or electric scraper discharging；The breasting method of nugget lower part
After back production, back production nugget top is carried out followed by using shrinkage method, in shrinkage method back production, local ore drawing or ore removal and most
Whole ore drawing or ore removal are all to carry out in mineral building after the adopting of nugget lower part, using loader-and-carry dumper ore removal.
In breasting method exploitation process, in order to effectively control upper armor rock stability, retain irregular pillar.
The significant technical characterstic of this method is the use in conjunction of breasting method and shrinkage method, i.e., uses in nugget or stope lower part
Breasting method, and upper part uses shrinkage method instead.
A kind of comprehensive shrink combined mining method suitable for the changeable ore body in inclination angle provided by the invention and it is existing it is single comprehensively
Method or shrinkage method are compared, and have the advantage that (1) according to the variation at the slanting angle of ore body, chooses to adaptation to local conditions two kinds accordingly
Mining methods can smoothly solve the problems, such as occur in nugget stope design, construction and back production；(2) it is directed to the change at the slanting angle of ore body
Change, corresponding two kinds of mining codes are respectively adopted, give full play to respective superiority, it is particularly possible to save nugget top shrinkage method
Stage structure advantageously reduces in bottom structure and adopts cutting journey and its foundation loss；(3) the characteristics of changing from dip angle goes out
Hair, neatly chooses corresponding mining codes, can to avoid " eat easily lose difficulty ", " eat richness lose poor ", " eat thickness lose thin " phenomenon, so as to
To further increase ore recovery rate.
Detailed description of the invention
Fig. 1 is comprehensive shrink combined mining method schematic diagram；
Fig. 2 is comprehensive shrink combined mining method schematic side view；
The return aircourse 1-；2- flank courtyard；3- connecting taxiway；The center 4- courtyard；5- ore pillar；6- cut-off；7- haulage drift；8-
Ore；9- ore body.
Specific embodiment
A kind of comprehensive shrink combination method of the changeable ore body in suitable inclination angle, structure and parameter: level interval is generally 40 ~ 60m,
Within the stage, across pitch divides nugget, and nugget length is 40 ~ 60m, and studding, foundation width are generally 5.0 ~ 6.0m, top pillar height
Generally 8.0 ~ 10.0m.
Adopt quasi- with cutting: mining preparation work be mainly phase of boring haulage way, stage vent level in arteries and veins, central courtyard,
Flank courtyard, connecting taxiway；Cutter is made mainly to form pulling end space using the tunnel that undercuts as the scope of freedom and ward off leakage, is back production work
The scope of freedom is opened up, while being created favorable conditions for explosion.Adopt quasi- work arrangement as shown in FIGS. 1 and 2.
Actual mining: in block stoping, breasting method back production nugget lower part is first used, then using on shrinkage method back production nugget
Portion.After the completion of adopting quasi- engineering, first go up a hill in nugget lower part or one side digging cutting gallery or cutting, and thus across strike or walk
To back production is carried out, method is breasting method.In breasting method back production, according to slanting angle of ore body difference, gone out using loader-and-carry dumper or scraper
Generally electric scraper discharging can be used in horizontal or gently inclined orebody (30 ° or less) in mine, and inclination or high-dipping ore block (30 ° or more) can
Using loader-and-carry dumper ore removal.During allwork, in order to effectively control upper armor rock stability, retain irregular pillar and tight
Lattice grasp its spacing, and irregular pillar specification is 2m × 2m ~ 4m × 4m, 6 ~ 15m of span.The breasting method back production of nugget lower part terminates
Afterwards, back production is carried out using shrinkage method followed by nugget top.In shrinkage method back production, local ore drawing or ore removal and final draw
Or ore removal, it is all to be carried out in mineral building after the adopting of nugget lower part, using loader-and-carry dumper ore removal.
In order to effectively control upper armor rock stability, in breasting method exploitation process, retain irregular pillar and the stringent palm
Its spacing is held, irregular pillar specification is 2m × 2m ~ 4m × 4m, 6 ~ 15m of spacing.
Claims (2)
1. a kind of comprehensive shrink combination method of the changeable ore body in suitable inclination angle, structure and parameter: level interval is 40 ~ 60m, in the stage
It is interior, across pitch divide nugget, nugget length be 40 ~ 60m, studding, foundation width be 5.0 ~ 6.0m, top pillar height be 8.0 ~
10.0m；
Adopt quasi- with cutting: mining preparation work have phase of boring haulage way, stage vent level in arteries and veins, central courtyard, flank courtyard,
Connecting taxiway；Cutting work has using the tunnel that undercuts as the scope of freedom, forms pulling end space and wards off leakage, opens up the scope of freedom for actual mining,
It creates favorable conditions simultaneously for explosion；
Actual mining: it after the completion of adopting quasi- engineering, first goes up a hill in nugget lower part or one side digging cutting gallery or cutting, and thus
Across strike is moved towards to carry out back production, in block stoping, first uses breasting method back production nugget lower part, then uses shrinkage method back production mine
Block top；In breasting method back production, according to slanting angle of ore body difference, using loader-and-carry dumper or electric scraper discharging；The breasting method of nugget lower part
After back production, back production nugget top is carried out followed by using shrinkage method, in shrinkage method back production, local ore drawing or ore removal and most
Whole ore drawing or ore removal are all to carry out in mineral building after the adopting of nugget lower part, using loader-and-carry dumper ore removal.
2. comprehensive shrink combination method of the changeable ore body in suitable inclination angle according to claim 1, in breasting method exploitation process,
In order to effectively control upper armor rock stability, retain irregular pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366858.4A CN109630117A (en) | 2018-11-16 | 2018-11-16 | Comprehensive shrinkage combination method suitable for variable-inclination-angle ore body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811366858.4A CN109630117A (en) | 2018-11-16 | 2018-11-16 | Comprehensive shrinkage combination method suitable for variable-inclination-angle ore body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630117A true CN109630117A (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811366858.4A Pending CN109630117A (en) | 2018-11-16 | 2018-11-16 | Comprehensive shrinkage combination method suitable for variable-inclination-angle ore body |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6193881B1 (en) * | 1997-05-07 | 2001-02-27 | Tarim Associates For Scientific Mineral And Oil Exploration Ag. | In-situ chemical reactor for recovery of metals or purification of salts |
| CN107725054A (en) * | 2017-08-18 | 2018-02-23 | 西北矿冶研究院 | Mining method of thin vein with changeable inclination angle |
-
2018
- 2018-11-16 CN CN201811366858.4A patent/CN109630117A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6193881B1 (en) * | 1997-05-07 | 2001-02-27 | Tarim Associates For Scientific Mineral And Oil Exploration Ag. | In-situ chemical reactor for recovery of metals or purification of salts |
| CN107725054A (en) * | 2017-08-18 | 2018-02-23 | 西北矿冶研究院 | Mining method of thin vein with changeable inclination angle |
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Application publication date: 20190416 |
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