CN108999611A - It continuously undercuts propulsion method to angie type - Google Patents
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- CN108999611A CN108999611A CN201810744458.6A CN201810744458A CN108999611A CN 108999611 A CN108999611 A CN 108999611A CN 201810744458 A CN201810744458 A CN 201810744458A CN 108999611 A CN108999611 A CN 108999611A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000005065 mining Methods 0.000 claims description 20
- 239000011435 rock Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- 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
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Abstract
The invention discloses continuously undercuting propulsion method to angie type, this method continuously undercuts propulsion according to the upward disk of lower wall of diagonal direction from the ore body of ore body, and the diagonal direction refers to the direction by lower wall one end towards upper disk diagonal line one end.The abundant avalanche of continuously and smoothly and efficiently production can be not only realized using this method, significantly reduce the risk that ore pillar stress concentration degree and bottom structure destroy, meanwhile as pulling end space persistently promotes, a possibility that undercuting tunnel and the destruction of ore removal entry can be also effectively reduced.
Description
Technical field
The invention belongs to mining technique field, continuously undercut propulsion method in particular to angie type.
Background technique
Natural caving method is a kind of extensive, low cost mining methods.Its production capacity is big, convenient for organization and administration, makees
Industry safety, cost of winning is low, is the efficient underground mining method that can uniquely match in excellence or beauty with strip mining transformation economic benefit.The mining methods
Technique be widely used in the exploitation of big thick ore body.It exploits in this way, relatively good economic benefit can be obtained.
With other mining methods it is different be that the mining technology is not necessarily to carry out layering rock drilling and explosion step by step to make ore body avalanche,
Merely with the intrinsic joint fissure distribution characteristics of ore body itself and stress characteristics, the drawing of certain area is carried out in nugget bottom
Bottom forms the scope of freedom of ore inbreak, continues avalanche to induce ore body to carry out nature.How and drawing is formed in high efficiency and low cost
Base space and then induction ore body continue avalanche naturally and still need further to be studied.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose the propulsion method that continuously undercuts to angie type.Can not only be realized using this method the abundant avalanche of continuously and smoothly and
Efficiently production significantly reduces the risk that ore pillar stress concentration degree and bottom structure destroy, meanwhile, continue with space is dragged down
It promotes, can also effectively reduce a possibility that undercuting tunnel and the destruction of ore removal entry.
According to an aspect of the present invention, it continuously undercuts propulsion method the invention proposes a kind of pair of angie type, i.e., according to mine
The upward disk of the lower wall of the diagonal direction of body from ore body continuously undercuts propulsion, and the diagonal direction refers to the upward disk pair in one end by lower wall
The direction of linea angulata one end.
Inventors have found that when being dug up mine using natural caving method, the formation of pulling end space by undercut starting point, undercut propulsion
Direction determines, and uses the propulsion mode that continuously undercuts to angie type, can not only reduce the stress concentration degree for the front support band that undercuts,
A possibility that undercuting tunnel and the destruction of ore removal entry can also be effectively reduced.It is according to the above embodiment of the present invention to angie type
Continuously undercut propulsion method, since one end, that is, lower wall of ore body, promotes to the i.e. upper disk of the other end, substantially according to the diagonal of ore body
Direction continuously promotes, and when undercuting every time, main layer, which undercuts, is pulled to the upper disk other end from lower wall one end, and secondary layer collaboration is continuous to be promoted, can
To significantly increase Effective caving area, periphery clipping is reduced, the abundant avalanche of continuously and smoothly and efficiently production is realized, significantly reduces
Forming rock pillar causes stress to concentrate the risk for destroying bottom structure, meanwhile, as pulling end space persistently promotes, can also effectively drop
A possibility that low undercut tunnel and ore removal entry destroy, not only can be horizontally formed sufficiently large undercut undercuting as a result,
Space induces ore to continue avalanche naturally, carries out perforated blasting operation also without to the ore body of each segmentation, can significantly improve and adopt
The operating efficiency dug up mine with natural caving method, and reduce cost.
In addition, the propulsion method according to the above embodiment of the present invention that continuously undercuts to angie type can also have it is following additional
Technical characteristic:
In some embodiments of the invention, the propulsion method that continuously undercuts to angie type be suitable for the deep mining stress of primary rock it is high,
And the ore body that orebody trend and biggest principal stress direction are parallel or nearly parallel.Thus, it is possible to further increase natural caving method
The operating efficiency of mining, and further reduce the cost.
In some embodiments of the invention, the ore body tilts or delays and incline for the big inclination of thickness or gently inclined orebody and middle thickness
Oblique ore body.
In some embodiments of the invention, the method is suitable for natural caving method production practice.
In some embodiments of the invention, the breaking edge of the propulsion that undercuts and the angle of discharging tunnel are 40-50 degree.
The arch springing pressure influence on loading drift not only can be significantly reduced as a result, improve undercut tunnel and discharging tunnel crosspoint
Stability, moreover it is possible to further increase ore removal efficiency.
In some embodiments of the invention, undercut every time propulsion distance be 4~6m.
Detailed description of the invention
Fig. 1 is according to an embodiment of the invention to undercut according to the propulsion method that continuously undercuts to angie type to ore body
Sequence management figure.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
According to an aspect of the present invention, it continuously undercuts propulsion method the invention proposes a kind of pair of angie type, according to ore body
The upward disk of lower wall of diagonal direction from ore body repeatedly undercut propulsion, diagonal direction refers to one end by lower wall towards upper disk diagonal line
One extreme direction.
Inventors have found that when being dug up mine using natural caving method, the formation of pulling end space by undercut starting point, undercut propulsion
Direction determines, and uses the propulsion mode that continuously undercuts to angie type, can not only reduce the stress concentration degree for the front support band that undercuts,
A possibility that undercuting tunnel and the destruction of ore removal entry can also be effectively reduced.It is according to the above embodiment of the present invention to angie type
Continuously undercut propulsion method, since one end, that is, lower wall of ore body, promotes to the i.e. upper disk of the other end, substantially according to the diagonal of ore body
Direction continuously promotes, and when undercuting every time, main layer, which undercuts, is pulled to the upper disk other end from lower wall one end, and secondary layer collaboration is continuous to be promoted, can
To significantly increase Effective caving area, periphery clipping is reduced, the abundant avalanche of continuously and smoothly and efficiently production is realized, significantly reduces
The risk that ore pillar stress concentration degree and bottom structure destroy, meanwhile, as pulling end space persistently promotes, can also effectively reduce
It undercuts tunnel and ore removal entry a possibility that destroying, not only can be horizontally formed the sufficiently large sky that undercuts undercuting as a result,
Between induce ore to continue avalanche naturally, carry out perforated blasting operation also without to the ore body of each segmentation, use can be significantly improved
The operating efficiency of natural caving method mining, and reduce cost.
According to a particular embodiment of the invention, the propulsion method that continuously undercuts to angie type be suitable for the deep mining stress of primary rock it is high,
And the ore body that orebody trend and biggest principal stress direction are parallel or nearly parallel.The major influence factors of pulling end space have ore body
Grade distribution, the direction of the stress of primary rock and the intracorporal main construction of size, mine and rock mass strength etc., how sharp in shape, ore body
With rock mass self-characteristic, using crustal stress, utilizing works control carrys out rock and carries out the technology pass that free breakage is natural caving method
Key, and inventors have found that carried out when the stress of primary rock and orebody trend are parallel or nearly parallel using along ore body diagonal direction
The propulsion method continuously to undercut can further decrease the stress concentration degree for the front support band that undercuts, and with pulling end space
It is lasting to promote, a possibility that undercuting tunnel and the destruction of ore removal entry can also be further decreased.It is mentioned as a result, using the present invention
The propulsion method that continuously undercuts to angie type out is high to the stress of primary rock and orebody trend is parallel with biggest principal stress direction or close flat
Capable ore body carries out deep mining, can be further improved the operating efficiency of natural caving method mining, and reduces cost.
It should be noted that described " orebody trend with biggest principal stress direction close to parallel " in the present invention refers to
The angle of orebody trend and biggest principal stress direction is no more than 30 degree.
According to a particular embodiment of the invention, ore body can be that the big inclination of thickness or gently inclined orebody and middle thickness tilt or delay and incline
Oblique ore body.For thick big inclination or gently inclined orebody and middle thick inclination or gently inclined orebody, using proposed by the present invention to angie type
The propulsion method that continuously undercuts can be further improved the operating efficiency of free breakage mining.
According to a particular embodiment of the invention, propulsion method can be continuously undercuted to angie type to thick big inclination or flat-grade mine
Body, the stress of primary rock are high and orebody trend and biggest principal stress direction connect subparallel ore body and carry out deep mining, it is possible thereby into
One step improves the operating efficiency of free breakage mining.
According to a particular embodiment of the invention, the propulsion method that continuously undercuts to angie type of the above embodiment of the present invention is suitable for certainly
Right Mining by caving method technique, as a result, not only without carrying out perforated blasting operation to the ore body of each segmentation, moreover it is possible to significantly improve use
The operating efficiency of natural caving method mining, and reduce cost.
According to a particular embodiment of the invention, it undercuts the breaking edge of propulsion and the angle of discharging tunnel is 40-50 degree.Invention
People's discovery undercuts the breaking edge of propulsion by control in the present invention and the angle of loading drift is 40-50 degree, not only can be significant
Reduction, which undercuts, promotes line length, and the stress for reducing the face that undercuts is concentrated, and the working face that can be undercuted simultaneously can also be effectively increased, and improves
Undercut speed, promotes mining production efficiency.
According to a particular embodiment of the invention, undercut every time propulsion distance be 4~6m, undercut every time control in the distance
In range, the explosion number that undercuts can be increased, stress is reduced in the stress time of concentration on pressure surface that undercuts, promoted for undercuting
The stability of face and bottom structure is highly beneficial.
According to a particular embodiment of the invention, it is continuously undercuted propulsion method using above-mentioned to angie type to ore body shown in FIG. 1
It digs up mine, wherein the horizontal sequence management technical solution that undercuts that undercuts is as shown in Figure 1, realizing natural caving method exploitation work
It when skill, undercuts and promotes initial velocity smaller, and the direction for the propulsion that undercuts every time is roughly the same, is in diagonal direction.
Embodiment 1
It continuously undercuts propulsion mode to certain inclination big thick ore body to angie type, is selected in certain mine 810m, 690m, 570m depth middle section
Two ore bodies of ore body are taken, since one end, that is, lower wall of ore body, are promoted to the i.e. upper disk of the other end, substantially according to the diagonal of ore body
Direction promotes.
Scheme advantage: main layer undercuts to undercut the supreme disk other end from lower wall one end, and secondary layer collaboration is continuous to be promoted, and has increased
Avalanche area is imitated, periphery clipping is reduced, the abundant avalanche of continuously and smoothly and efficiently production is realized, significantly reduces to form rock pillar
Stress is caused to concentrate the risk for destroying bottom structure.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (6)
- The propulsion method 1. a kind of pair of angie type continuously undercuts, which is characterized in that according to ore body diagonal direction from the lower wall of ore body to Upper disk continuously undercuts propulsion, and the diagonal direction refers to direction of the one end by lower wall towards upper disk diagonal line one end.
- 2. the method according to claim 1, wherein the method is suitable for deep mining stress of primary rock height and mine The ore body that body trend is parallel or nearly parallel with biggest principal stress direction.
- 3. according to the method described in claim 2, it is characterized in that, the ore body is thick big inclination or gently inclined orebody and middle thickness Inclination or gently inclined orebody.
- 4. according to the method described in claim 3, it is characterized in that, the method is suitable for natural caving method production practice.
- 5. the method according to claim 1, wherein the breaking edge of the propulsion that undercuts and the angle of discharging tunnel For 40-50 degree.
- 6. the method according to claim 1, wherein the distance for the propulsion that undercuts every time is 4~6m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744458.6A CN108999611A (en) | 2018-07-09 | 2018-07-09 | It continuously undercuts propulsion method to angie type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744458.6A CN108999611A (en) | 2018-07-09 | 2018-07-09 | It continuously undercuts propulsion method to angie type |
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| Publication Number | Publication Date |
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| CN108999611A true CN108999611A (en) | 2018-12-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2186975C2 (en) * | 2000-03-27 | 2002-08-10 | Зубов Владимир Павлович | Method of mining of thick mineral beds |
| CN101368482A (en) * | 2008-10-16 | 2009-02-18 | 灵宝市金源矿业有限责任公司 | Novel technique of slight-pitch ore body overall mining method |
| CN104153782A (en) * | 2014-07-29 | 2014-11-19 | 长沙矿山研究院有限责任公司 | Progressive caving mining method |
| CN104533415A (en) * | 2014-11-25 | 2015-04-22 | 北京科技大学 | Mining method coupling forced block caving method with spontaneous caving method |
-
2018
- 2018-07-09 CN CN201810744458.6A patent/CN108999611A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2186975C2 (en) * | 2000-03-27 | 2002-08-10 | Зубов Владимир Павлович | Method of mining of thick mineral beds |
| CN101368482A (en) * | 2008-10-16 | 2009-02-18 | 灵宝市金源矿业有限责任公司 | Novel technique of slight-pitch ore body overall mining method |
| CN104153782A (en) * | 2014-07-29 | 2014-11-19 | 长沙矿山研究院有限责任公司 | Progressive caving mining method |
| CN104533415A (en) * | 2014-11-25 | 2015-04-22 | 北京科技大学 | Mining method coupling forced block caving method with spontaneous caving method |
Non-Patent Citations (1)
| Title |
|---|
| 徐帅、邱景平: "《金属矿床地下开采采矿方法设计指导书》", 30 June 2016, 冶金工业出版社 * |
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Application publication date: 20181214 |