CN106895754A - A kind of inclined orebody cuts kerf blasting method of going up a hill - Google Patents
A kind of inclined orebody cuts kerf blasting method of going up a hill Download PDFInfo
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- CN106895754A CN106895754A CN201710104505.6A CN201710104505A CN106895754A CN 106895754 A CN106895754 A CN 106895754A CN 201710104505 A CN201710104505 A CN 201710104505A CN 106895754 A CN106895754 A CN 106895754A
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- Prior art keywords
- hill
- cut
- going
- hole
- cuts
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Abstract
Kerf blasting method of going up a hill is cut the invention discloses a kind of inclined orebody, construction cutting is carried out at twice when going up a hill, driling explosion driving is carried out using angled cut to adopting quasi- high side, increase the compensation space of secondary blasting and the scope of freedom, reduce cutting and go up a hill plagioclase first by shallow bore hole drill jumbo；Then reuse long and medium hole drilling chassis carries out once running through explosion using burn cut to cutting.The present invention can make inclined orebody cut to go up a hill and just form cutting by a shallow bore hole driling explosion and a long and medium hole drilling explosion and go up a hill, effectively reduce the security risk in the multiple shallow bore hole kerve operation process of conventional method, the equipment such as chassis, digging machine is solved during inclined orebody kerve because the ore body gradient is larger, without the problem for playing bottom, can not being directly engaged in anchor net, rock drilling, scraping operation, so as to reach the purpose accelerated drawing speed, improve ore quality, reduce security risk.
Description
Technical field
The invention belongs to mining engineering field, a kind of method for being related to inclined orebody to cut kerf blasting of going up a hill.
Background technology
At present, in the recovery activity of non-coal underground mine, in addition to minority is using chamber blasting, generally collapsed using explosion
Ore deposit technology.In the inclination of non-metal deposition mineral deposit, the recovery process of gently inclined orebody, due to by factors such as safety, transports
Limitation, generally must by ore body division for mineral building unit carries out back production, and before mineral building back production, cut one it is identical with the slanting angle of ore body
Cutting groove it is most important to mineral building back production as the scope of freedom of back production explosion and ore reduction compensation space.
Have due to facing Trenching technology of medium-length hole not yet maturation, the domestic mechanized mining equipment climbing capacity for using
Limit, the inclined orebody gradient difficulty such as between 30 °~55 ° again, therefore, under current technical status, constructed in inclined orebody
Go out a satisfied cutting groove generally need to by many separate explosions, play bottom repeatedly, cause ore quality and can not protect to enterprise's production
Card, the difficulty such as personnel equipment is less efficient and potential safety hazard is protruded.
The content of the invention
The technical problem to be solved in the present invention is：A kind of inclined orebody is provided and cuts kerf blasting method of going up a hill, raising is inclined
Oblique ore body cuts formation efficiency of going up a hill, it is ensured that ore quality, increases workmen and equipment availability security.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that and is achieved：
A kind of cutting of inclined orebody is gone up a hill kerf blasting method, cutting explosion of going up a hill is carried out at twice, first by shallow
Hole drill jumbo carries out development blasting using angled cut to adopting quasi- high side, increase secondary blasting compensation space and the scope of freedom,
Cutting is reduced to go up a hill plagioclase；Then reuse long and medium hole drilling chassis carries out once running through explosion using burn cut to cutting.
Further, the angled cut is V-cut.
Further, the burn cut is the big emptying aperture cutting method in tubular center.
Further, the wedge-shaped angled cut hole is more than or equal to 80 ° with blast plane angle in the horizontal direction.
Further, there are two row, and each row the top, the wedge-shaped angled cut hole of bottom in the wedge-shaped angled cut hole
The wedge-shaped angled cut hole topmost and between bottom and blast plane are different from the vertical direction angle of blast plane
Vertical direction angle.
The medium-length hole burn cut kerf blasting is applied to inclination angle between 30 °~55 °, and the layering discrepancy in elevation is less than or equal to
12m, plagioclase is less than or equal to 15m, and the cutting cutting less than or equal to 6m wide is gone up a hill.
Further, the angled cut is provided with via hole, and described burn cut is provided with via hole, periphery hole.
Further, the angled cut and burn cut are blocked using continuous coupled powder charge, stemming, and dose is from slotting to auxiliary
Help, the charging means that periphery is successively decreased.
Further, the angled cut and burn cut use short-delay blasting.
The present invention can make inclined orebody cutting go up a hill by a shallow bore hole driling explosion and a long and medium hole drilling explosion
Just form cutting to go up a hill, effectively reduce the security risk in the multiple shallow bore hole kerve operation process of conventional method, solve inclination
During ore body kerve the equipment such as chassis, digging machine due to the ore body gradient it is larger, without rise a bottom, can not directly be engaged in anchor net, chisel
Rock, the problem of scraping operation, so as to reach the purpose accelerated drawing speed, improve ore quality, reduce security risk.
Brief description of the drawings
Fig. 1 is mineral building cutting position schematic diagram of the present invention；
Fig. 2 is angled cut of the present invention and burn cut vertical direction generalized section；
Fig. 3 is blast plane cloth hole schematic diagram in A-A faces of the present invention；
Fig. 4 is angled cut horizontal direction generalized section of the present invention；
Fig. 5 is blast plane cloth hole schematic diagram in B-B faces of the present invention；
1- angled cuts hole；2- angled cut roof holes；3- angled cut bottom plate holes；4- angled cut via holes；5- is straight
The big emptying aperture in eye slotting center；6- burn cut keyholes；7- burn cut roof holes；8- burn cut bottom plate holes；The straight eyes of 9- are drawn
Groove via hole；10- burn cut periphery holes.
Specific embodiment
Technical scheme is following examples further illustrated, but not as the limit to the scope of the present invention
It is fixed.
With reference to shown in Figure of description 1,2,3,4 and 5, inclined orebody of the invention cuts kerf blasting method of going up a hill and will cut
Cut explosion of going up a hill is carried out at twice, first by shallow bore hole drill jumbo using angled cut hole 1 and angled cut roof hole 2, tiltedly
Eye slotting bottom plate hole 3, angled cut via hole 4 pairs adopts quasi- high side carries out development blasting, increase secondary blasting compensation space and
The scope of freedom, reduce cutting and go up a hill plagioclase；Then reusing long and medium hole drilling chassis carries out rock drilling, using the big sky in burn cut center
Hole 5 further increases parallel cut blasting broken space of rising, reduces straight eye explosion minimum burden, using burn cut keyhole 6,
Burn cut roof hole 7, burn cut bottom plate hole 8, burn cut via hole 9, the 10 pairs of cuttings of burn cut periphery hole carry out one
It is secondary through explosion.
Specific implementation step is as follows：
With reference to shown in Figure of description 1, after mineral building adopts quasi- construction in place, cleavage is determined according to upper and lower hierarchical relational
Put.
With reference to shown in Figure of description 2,3 and 4, tunneled using shallow bore hole drill jumbo, cloth eye, wedge are carried out in strict accordance with design
Shape angled cut hole 1 has two row, is parallel to each other, and each row include 6 wedge-shaped angled cut holes 1, each wedge-shaped angled cut
Hole 1 and blast plane angle in the horizontal direction are 80 ° (as shown in Figure 4), are topmost drawn with two of bottom wedge-shaped strabismuses
Slotted eye 1 and blast plane are 60 ° (as shown in Figure 2) in the angle of vertical direction, and length is 3.5m, four middle wedge-shaped strabismuses
The length of keyhole 1 is 3.2m；The fan transfer of angled cut via hole 4, length 3m；Angled cut roof hole 2 and angled cut
Bottom plate hole 3 is tunneled to roof and floor barren rock respectively.
With reference to shown in Figure of description 2,3 and 4, V-cut eye uses continuous coupled powder charge, is carried out using emulsion
Explosion；Angled cut hole 1 fills 1 section of non-fulgurite, coefficient of charge 0.8；Angled cut via hole 4, angled cut roof hole 2 and strabismus
Slotting bottom plate hole 3 loads 3 sections of non-fulgurite, coefficient of charge 0.5；Ore removal, anchor net after short-delay blasting, are that secondary tubular Cut Blasting is done
Prepare.
With reference to shown in Figure of description 2 and 5, rock drilling is carried out using medium-length hole chassis, cloth hole is carried out according to design drawing, applied
Work should accomplish that orientation is accurate, accurate positioning, and the big emptying aperture 5 in burn cut center, tubular burn cut hole 6 are beaten according to the slanting angle of ore body
Hole, burn cut via hole 9, the fan transfer of burn cut periphery hole 10.
With reference to shown in Figure of description 2 and 5, tubular burn cut hole 6 (can be regarded as being distributed on a face of cylinder) adopts
Continuous coupled powder charge is used, explosion is carried out using ammonium oil particles explosive；Tubular burn cut hole 6 fills 1 section of non-fulgurite, coefficient of charge
0.8；Burn cut via hole 9, burn cut roof hole 7, burn cut bottom plate hole 8 load 3 sections of non-fulgurite, coefficient of charge 0.6；
Burn cut periphery hole 10 loads 5 sections of non-fulgurite, coefficient of charge 0.4；Procuratorial work demolition effect after short-delay blasting, ore removal.
Claims (9)
1. a kind of inclined orebody cuts kerf blasting method of going up a hill, it is characterised in that：Cutting explosion of going up a hill is carried out at twice, it is first
First development blasting is carried out using shallow bore hole drill jumbo to adopting quasi- high side using angled cut；Then long and medium hole drilling chassis is reused
Cutting is carried out using burn cut once run through explosion.
2. a kind of inclined orebody as claimed in claim 1 cuts kerf blasting method of going up a hill, it is characterised in that：The strabismus is drawn
Groove is V-cut mode.
3. a kind of inclined orebody as claimed in claim 2 cuts kerf blasting method of going up a hill, it is characterised in that：The wedge shape is tiltedly
Eye keyhole is more than or equal to 80 ° with blast plane angle in the horizontal direction.
4. a kind of inclined orebody as claimed in claim 3 cuts kerf blasting method of going up a hill, it is characterised in that：The wedge shape is tiltedly
Eye keyhole has two row, and each row the top, the wedge-shaped angled cut hole of bottom and blast plane in the folder of vertical direction
Angle is different from the angle of wedge-shaped angled cut hole and blast plane topmost and between bottom in vertical direction.
5. a kind of inclined orebody as claimed in claim 1 cuts kerf blasting method of going up a hill, it is characterised in that：The straight eye is drawn
Groove is the big emptying aperture cutting method in tubular center.
6. a kind of inclined orebody as claimed in claim 1 cuts kerf blasting method of going up a hill, it is characterised in that：The medium-length hole
Between 30 °~55 °, the layering discrepancy in elevation is less than or equal to 12m, and plagioclase is less than at the inclination angle that cutting is gone up a hill during burn cut kerf blasting
Equal to 15m, cutting is wide to be less than or equal to 6m.
7. a kind of inclined orebody as claimed in claim 1 cuts kerf blasting method of going up a hill, it is characterised in that：The strabismus is drawn
Groove is provided with via hole, and the burn cut is provided with via hole and periphery hole.
8. a kind of inclined orebody as claimed in claim 1 cuts kerf blasting method of going up a hill, it is characterised in that：The strabismus is drawn
Groove and burn cut are blocked using continuous coupled powder charge, stemming, the powder charge side that dose is from slotting to via hole, periphery hole successively decreases
Formula.
9. a kind of inclined orebody as claimed in claim 1 cuts kerf blasting method of going up a hill, it is characterised in that：The strabismus is drawn
Groove and burn cut use short-delay blasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104505.6A CN106895754B (en) | 2017-02-24 | 2017-02-24 | A kind of cutting of inclined orebody is gone up a hill kerf blasting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104505.6A CN106895754B (en) | 2017-02-24 | 2017-02-24 | A kind of cutting of inclined orebody is gone up a hill kerf blasting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106895754A true CN106895754A (en) | 2017-06-27 |
| CN106895754B CN106895754B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710104505.6A Expired - Fee Related CN106895754B (en) | 2017-02-24 | 2017-02-24 | A kind of cutting of inclined orebody is gone up a hill kerf blasting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361041A (en) * | 2018-02-09 | 2018-08-03 | 内蒙古金陶股份有限公司 | A kind of inclination upraise construction technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU95104139A (en) * | 1995-03-23 | 1997-03-10 | Научно-исследовательский институт горной геомеханики и маркшейдерского дела | Method for mining thick flat and sloping seams |
| CN101738148A (en) * | 2009-12-21 | 2010-06-16 | 煤炭科学研究总院南京研究所 | Tunnel medium-length hole smooth blasting method |
| CN103090752A (en) * | 2011-11-04 | 2013-05-08 | 贵州开磷（集团）有限责任公司 | Medium-length hole cutting and blasting method for slowly inclined orebody |
| CN103696770A (en) * | 2013-12-17 | 2014-04-02 | 武汉工程大学 | Cutting raise cutting method used in underground mining |
| CN106288991A (en) * | 2016-09-20 | 2017-01-04 | 中国地质大学（武汉） | A kind of underground mining cuts kerve method of going up a hill |
-
2017
- 2017-02-24 CN CN201710104505.6A patent/CN106895754B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU95104139A (en) * | 1995-03-23 | 1997-03-10 | Научно-исследовательский институт горной геомеханики и маркшейдерского дела | Method for mining thick flat and sloping seams |
| CN101738148A (en) * | 2009-12-21 | 2010-06-16 | 煤炭科学研究总院南京研究所 | Tunnel medium-length hole smooth blasting method |
| CN103090752A (en) * | 2011-11-04 | 2013-05-08 | 贵州开磷（集团）有限责任公司 | Medium-length hole cutting and blasting method for slowly inclined orebody |
| CN103696770A (en) * | 2013-12-17 | 2014-04-02 | 武汉工程大学 | Cutting raise cutting method used in underground mining |
| CN106288991A (en) * | 2016-09-20 | 2017-01-04 | 中国地质大学（武汉） | A kind of underground mining cuts kerve method of going up a hill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361041A (en) * | 2018-02-09 | 2018-08-03 | 内蒙古金陶股份有限公司 | A kind of inclination upraise construction technology |
| CN108361041B (en) * | 2018-02-09 | 2018-12-14 | 内蒙古金陶股份有限公司 | A kind of inclination upraise construction technology |
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| CN106895754B (en) | 2019-01-15 |
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Granted publication date: 20190115 Termination date: 20210224 |