CN102926753A - Deep hole caving backfilling stoping method for artificially freezing stope roof - Google Patents
Deep hole caving backfilling stoping method for artificially freezing stope roof Download PDFInfo
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- CN102926753A CN102926753A CN2012103776602A CN201210377660A CN102926753A CN 102926753 A CN102926753 A CN 102926753A CN 2012103776602 A CN2012103776602 A CN 2012103776602A CN 201210377660 A CN201210377660 A CN 201210377660A CN 102926753 A CN102926753 A CN 102926753A
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Abstract
The invention discloses a deep hole caving backfilling stoping method for artificially freezing the stope roof. The method comprises the following steps that: by the artificial freezing method, the stope roof which is extremely unstable is frozen into a stable freezing body, which creates conditions for personnel and equipment entering the stope; and by the big-diameter deep hole caving backfilling stoping process, the medium and deep hole caving is applied, the goaf is filled once after stoping is finished, and the freezing body is unfrozen, so that the aim of safely and highly efficiently mining ore mass with extremely unstable roof is achieved. The method is specially applied to stoping of underground metal mines which are highly difficult to mine and of which the roof has rock gaps and a developed water flowing structure and is loose, soft, fragile and extremely unstable, and has the characteristics of safety in operation, high production efficiency, high capacity of producing ore blocks and low mining cost.
Description
Technical field
The present invention relates to a kind of deep hole ore caving afterwards filling mining method, particularly relate to a kind of sub-terrain mines and manually freeze stope top board deep hole ore caving afterwards filling mining method.
Background technology
The soft broken metalliferous deposit is regarded as a kind of complicated uneasily mining orebody always, because the joint fissure of ore body and water guide structure are grown, ore deposit rock resistance to overturning is relatively poor, allow that exposed area is little, the very easily inbreak of stope top board, personnel and equipment can't enter operation in the stope, also are difficult to adopt high efficiency mining methods.Characteristics for such ore body, exploit to the route type method of mining by the way of filling under adopt in the traditional handicraft more, ore body is divided into a plurality of layerings and many routes, then by constructing Man-made False as the top board of next layering orebody mining, the operation under Man-made False of personnel and equipment.Exist that complex process, operating efficiency are low, nugget production capacity low and the shortcomings such as mining and filling cost height, affected the production capacity of whole nugget, also restricted the use of high efficiency mining methods.
Summary of the invention
Technical problem to be solved by this invention provides a kind of job safety, improves panel production capacity, decrease mining cost and filling cost manually freeze stope top board deep hole ore caving afterwards filling mining method.
In order to solve the problems of the technologies described above, the present invention adopts manually freezes stope top board deep hole ore caving afterwards filling mining method, utilize engineering with artificial freezing method, with the utmost point built on the sand the stope top board be frozen into a firm body that freezes, then adopt large diameter, deep borehole ore caving afterwards filling mining technology under the top board in firm freezing, the medium-length hole ore caving, the complete rear one-time filling of back production goaf thaws to freezing body at last.
According to the stope structure size, at first determine the scope of freezing and freeze the technical requirements of body intensity, and carry out freezing parameters and design and the freezing equipment type selecting, then carry out successively in the Chuan Mai tunnel: the installation and debugging of Drilling freezing hole, the installation of freezing pipeline, freezing system, freezing system running, engineering monitoring operation are frozen into one with extremely unsteady top board and freeze body; After freezing the body all technical and reaching designing requirement, personnel and equipment enter and freeze under the top board, in drilling drift under the Drilling to medium-length hole, take slot raise as the explosion scope of freedom, the medium-length hole pulling end space is explosive broken as compensation space divides, and finishes stoping operation; Utilize scraper to enter stope from the bottom discharging tunnel and carry out ore removal; After ore removal was complete, the one-time filling goaf thawed to freezing body at last.
The described utmost point built on the sand stope top board is the break and broken orebody that joint fissure and water guide structure are grown.
That adopts technique scheme manually freezes stope top board deep hole ore caving afterwards filling mining method, in the break and broken orebody of joint fissure and water guide structure growth, utilize the artificial cooling technology, the Drilling freezing hole, and freezing system is installed in advance broken ore deposit (rock) body of top panel area is freezed, so that originally joint fissure is extremely grown or broken ore deposit (rock) body of loose shape, form one and freeze body, thereby avoid that top board collapses, inbreak; Then in firm freezing under the top board, personnel and equipment enter in the stope, Drilling medium-length hole big gun hole, and finish the work such as powder charge, explosion, ore removal, after back production was complete, the one-time filling goaf thawed to freezing body at last.Thereby reach job safety, improve nugget production capacity, the purpose of decrease mining and filling cost.
It is large that the present invention is applicable to underground underground metal mining difficulty, top board ore deposit lithofraction gap and water guide structure are grown, the soft broken utmost point in the body back production of ore deposit (rock), has been realized efficient mining technology, job safety built on the sand, nugget production capacity significantly improves, and mining cost significantly reduces.
The invention has the beneficial effects as follows, extremely unsteady stope roof rock mass is frozen into a firm body that freezes, adopt the large diameter, deep borehole process for stoping, personnel and equipment can directly carry out stoping operation under top board, production capacity of mining field is large, one-time filling goaf, mining cost are low, has solved the difficult problem of ore body safe working under the bad top.
Description of drawings
Fig. 1 manually freezes stope top board deep hole ore caving afterwards filling mining method design front view namely along I-I line cut-away view among Fig. 2.
Fig. 2 is along II-II line sectional drawing among Fig. 1.
Among the figure: 1. level haulage tunnel, 2. broken ore, 3. slot raise, 4. medium-length hole, 5. drilling drift, 6. body is 7. freezed in the Chuan Mai tunnel, 8. freezing hole, 9. drilling drift connection roadway, 10. stope boundary line, 11. medium-length hole pulling end spaces, 12. bottom discharging tunnels.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
The utmost point of the break and broken orebody of growing for joint fissure and water guide structure is the stope top board built on the sand, utilize engineering with artificial freezing method, with the utmost point built on the sand the stope top board be frozen into a firm body that freezes, then adopt large diameter, deep borehole ore caving afterwards filling mining technology under the top board in firm freezing, the medium-length hole ore caving, the complete rear one-time filling of back production goaf thaws to freezing body at last.
Referring to Fig. 1 and Fig. 2, Chuan Mai tunnel 6 connects level haulage tunnel 1, in stope boundary line 10, according to the stope structure size, at first determine the scope of freezing and freeze the technical requirements such as body intensity, and carry out freezing parameters and design and the freezing equipment type selecting, then in Chuan Mai tunnel 6, carry out successively: the running of the installation and debugging of Drilling freezing hole 8, the installation of freezing pipeline, freezing system, freezing system, engineering monitoring operation, the top board of the break and broken orebody that extremely unsteady joint fissure and water guide structure are grown is frozen into one and freezes body 7; After freezing body 7 all technicals and reaching designing requirement, personnel and equipment enter and freeze under the top board, drilling drift 5 connects drilling drift connection roadway 9, in drilling drift 5 under the Drilling to medium-length hole 4, take slot raise 3 as the explosion scope of freedom, medium-length hole pulling end space 11 is explosive broken as compensation space divides, finish stoping operation, broken ore 2 drops in the medium-length hole pulling end space 11; Utilize scraper to enter stope from bottom discharging tunnel 12 and carry out ore removal, bottom discharging tunnel 12 connects level haulage tunnels 1, and the ore removal operation is to carry out under the top board freezing, and can guarantee the safety of personnel and equipment; After ore removal was complete, the one-time filling goaf thawed to freezing body at last.
In whole mining process, strengthen the maintenance of freezing body 7 is freezed and engineering monitoring.
Claims (3)
1. one kind is manually freezed stope top board deep hole ore caving afterwards filling mining method, it is characterized in that: utilize engineering with artificial freezing method, with the utmost point built on the sand the stope top board be frozen into a firm body that freezes, then adopt large diameter, deep borehole ore caving afterwards filling mining technology under the top board in firm freezing, the medium-length hole ore caving, the complete rear one-time filling of back production goaf thaws to freezing body at last.
2. according to the right 1 described stope top board deep hole ore caving afterwards filling mining method that manually freezes, it is characterized in that: according to the stope structure size, at first determine the scope of freezing and freeze the technical requirements of body intensity, and carry out freezing parameters and design and the freezing equipment type selecting, then carry out successively in the Chuan Mai tunnel: the installation and debugging of Drilling freezing hole, the installation of freezing pipeline, freezing system, freezing system running, engineering monitoring operation are frozen into one with extremely unsteady top board and freeze body; After freezing the body all technical and reaching designing requirement, personnel and equipment enter and freeze under the top board, in drilling drift under the Drilling to medium-length hole, take slot raise as the explosion scope of freedom, the medium-length hole pulling end space is explosive broken as compensation space divides, and finishes stoping operation; Utilize scraper to enter stope from the bottom discharging tunnel and carry out ore removal; After ore removal was complete, the one-time filling goaf thawed to freezing body at last.
3. according to right 1 or the 2 described stope top board deep hole ore caving afterwards filling mining methods that manually freeze, it is characterized in that: the described utmost point built on the sand stope top board is the break and broken orebody that joint fissure and water guide structure are grown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210377660.2A CN102926753B (en) | 2012-10-08 | 2012-10-08 | Deep hole caving backfilling stoping method for artificially freezing stope roof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210377660.2A CN102926753B (en) | 2012-10-08 | 2012-10-08 | Deep hole caving backfilling stoping method for artificially freezing stope roof |
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| CN102926753A true CN102926753A (en) | 2013-02-13 |
| CN102926753B CN102926753B (en) | 2014-08-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894782A (en) * | 2018-07-31 | 2018-11-27 | 中南大学 | A kind of low temperature frost heave fracturing induction ore body inbreak mining codes |
| CN110792471A (en) * | 2019-10-22 | 2020-02-14 | 中南大学 | Sublevel open stoping subsequent filling mining method for artificially freezing filling body |
| CN110847954A (en) * | 2019-11-15 | 2020-02-28 | 太原理工大学 | Method for re-mining empty coal seam by accumulated water in tool post type residual mining area with top plate being frozen in sections |
| CN112627817A (en) * | 2020-12-07 | 2021-04-09 | 河北钢铁集团矿业有限公司 | Mining method for large water mine by using freezing method |
| CN114109388A (en) * | 2022-01-27 | 2022-03-01 | 东北大学 | Downward sequential stepped ore stope ore dropping method for deep thick and large ore body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2046952C1 (en) * | 1991-11-27 | 1995-10-27 | Красноярский институт цветных металлов | Permafrost rocks preparation method |
| CN1483902A (en) * | 2003-05-29 | 2004-03-24 | 中国矿业大学 | Method of distributing freezers for speeding up freezing soil and rock in local area |
| CN2758695Y (en) * | 2004-12-14 | 2006-02-15 | 沈阳农业大学 | Deep frozen soil pipe |
| CN101871218A (en) * | 2010-02-03 | 2010-10-27 | 上海隧道工程股份有限公司 | Trenchless construction method of underground station space and arc-shaped freezing pipe construction equipment thereof |
-
2012
- 2012-10-08 CN CN201210377660.2A patent/CN102926753B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2046952C1 (en) * | 1991-11-27 | 1995-10-27 | Красноярский институт цветных металлов | Permafrost rocks preparation method |
| CN1483902A (en) * | 2003-05-29 | 2004-03-24 | 中国矿业大学 | Method of distributing freezers for speeding up freezing soil and rock in local area |
| CN2758695Y (en) * | 2004-12-14 | 2006-02-15 | 沈阳农业大学 | Deep frozen soil pipe |
| CN101871218A (en) * | 2010-02-03 | 2010-10-27 | 上海隧道工程股份有限公司 | Trenchless construction method of underground station space and arc-shaped freezing pipe construction equipment thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894782A (en) * | 2018-07-31 | 2018-11-27 | 中南大学 | A kind of low temperature frost heave fracturing induction ore body inbreak mining codes |
| CN110792471A (en) * | 2019-10-22 | 2020-02-14 | 中南大学 | Sublevel open stoping subsequent filling mining method for artificially freezing filling body |
| CN110792471B (en) * | 2019-10-22 | 2021-05-28 | 中南大学 | Sublevel open stoping subsequent filling mining method for artificially freezing filling body |
| CN110847954A (en) * | 2019-11-15 | 2020-02-28 | 太原理工大学 | Method for re-mining empty coal seam by accumulated water in tool post type residual mining area with top plate being frozen in sections |
| CN110847954B (en) * | 2019-11-15 | 2021-05-28 | 太原理工大学 | Method for re-mining empty coal seam by accumulated water in tool post type residual mining area with top plate being frozen in sections |
| CN112627817A (en) * | 2020-12-07 | 2021-04-09 | 河北钢铁集团矿业有限公司 | Mining method for large water mine by using freezing method |
| CN114109388A (en) * | 2022-01-27 | 2022-03-01 | 东北大学 | Downward sequential stepped ore stope ore dropping method for deep thick and large ore body |
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| CN102926753B (en) | 2014-08-06 |
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