CN109506530A - A kind of opencut 24m High-bench blasting expands side structure and its side method is expanded in explosion - Google Patents
A kind of opencut 24m High-bench blasting expands side structure and its side method is expanded in explosion Download PDFInfo
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- CN109506530A CN109506530A CN201811568347.0A CN201811568347A CN109506530A CN 109506530 A CN109506530 A CN 109506530A CN 201811568347 A CN201811568347 A CN 201811568347A CN 109506530 A CN109506530 A CN 109506530A
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- blasthole
- opencut
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- 238000005422 blasting Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004880 explosion Methods 0.000 title abstract description 8
- 239000002360 explosive Substances 0.000 claims abstract description 21
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 15
- 230000037452 priming Effects 0.000 claims abstract description 14
- 238000005474 detonation Methods 0.000 claims abstract description 10
- 239000000295 fuel oil Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 235000020004 porter Nutrition 0.000 claims abstract description 4
- 238000005553 drilling Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 102000016938 Catalase Human genes 0.000 description 1
- 108010053835 Catalase Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of opencut 24m High-bench blastings to expand side structure, and including normal step and and the 24m step of section, described to be provided with several blastholes that are triangularly arranged and on the 24m step of section, the array pitch of blasthole is 5.0-5.5m, pitch-row 15.0-16.0m；By being disposed with multiple-row blasting, air-spacer and ammonium nitrate-fuel oil mixture under upper in each blasthole, priming bomb is provided in the ammonium nitrate-fuel oil mixture, the priming bomb is equipped with plastic detonating tube detonator, and the payment to a porter of the plastic detonating tube detonator extends on the outside of blasthole.Also announce a kind of explosion expansion side method.The present invention can be improved the effective rate of utilization of the depth of blasthole, it reduces explosive detonation wave and crushes the energy consumed excessively to hole wall surrounding rock, extend the time that detonation gas acts on rock mass damage, the effective energy utilization rate and entirety expansion that explosive broken rock can be improved help efficiency, realize expansion side operation efficiently, safe.
Description
Technical field
The present invention relates to engineering explosion field, especially a kind of opencut 24m High-bench blasting expands side structure and its explosion
Expand side method.
Background technique
It when the interim Bang Pokuo circle operation of opencut, has faced conventional step and section is stacked, side slope is precipitous, and it is narrow to expand side place
It is narrow, the unfavorable conditions of large-scale rotary drill, power shovel and the operation danger of Electric Motor Wheel mine car；Domestic conventional roller cone drilling machine is only furnished with double extension bars
Bridge, maximum puncture depth be no more than 18.0m；The spaced loading of conventional step, air-spacer height are no more than 3m.It is outdoor
The existing expansion side mode of mine is successively extended to the outside according to former step is horizontal, two-by-two and section or even multiple groups simultaneously section in face of early period
Step when, tradition expands side method need to be in face of the unfavorable conditions such as steep slope surface, narrow space, large scale equipment operation danger；In addition,
Successively expand side along former step, expansion side is inefficient, and work surface is more, and longitudinally superimposed, and up/down steps operational security is poor.It is domestic
Conventional roller cone drilling machine matches the standby bar device of 2 multi packs, and every run of steel is 10m, deducts the height of drilling machine rack, maximum drilling depth
No more than 19m.
Summary of the invention
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of opencut 24m High-bench blastings to expand side knot
Side method is expanded in structure and its explosion.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of opencut 24m High-bench blasting expands side structure, including normal step and and the 24m step of section, it is described
And several blastholes are provided on the 24m step of section, according to triangular arrangement on table top, the array pitch of blasthole is several blastholes
5.0-5.5m, pitch-row 15.0-16.0m, the blasthole than it is described and section 24m step ultra-deep 2.0-2.5m, i.e., the described big gun
Hole depth is 26m-26.5m, and the diameter of the blasthole is 310mm；
By being disposed with multiple-row blasting, air-spacer and ammonium nitrate-fuel oil mixture, the ammonium oil under upper in each blasthole
Priming bomb is provided in explosive, the priming bomb is equipped with plastic detonating tube detonator, and the payment to a porter of the plastic detonating tube detonator extends
On the outside of to blasthole；
The height of the multiple-row blasting is that the height of air-spacer described in 6-8m is 5.0-8.0m.
Further, the height of the spacers is 5.0-7.0m.
Further, the height of the spacers is 7m.
Further, the height of the multiple-row blasting is 7m.
Further, the multiple-row blasting is landwaste powder.
Further, the priming bomb is equipped with 2 hair plastic detonating tube detonators.
A kind of opencut 24m High-bench blasting expansion side method, includes the following steps:
(1) first and section the quick-fried area of regional planning to be blasted, according to conditions such as lithology, engineering geology at the scene according to rule
The technical parameter drawn arranges blasthole, by triangular arrangement blasthole, Hole pattern parameters: array pitch 5.0-5.5m, pitch-row 15-16m, the preceding artillery salvo
Hole will be adjusted according to the practical bench crest situation in scene, and local protrusion portion position can increase auxiliary blasthole；
(2) blasthole ultra-deep is determined according to conditions such as lithology, the engineering geology for planning quick-fried area；
(3) on the drilling cramp of common domestic rotary drill plus for a drilling rod, in conjunction with two multi pack original on drilling machine for bridge
It realizes 3 drilling rod perforation, meets the normal perforation requirement of 24m high step；With the domestic conventional roller cone drilling machine for improving standby bar mode
According to live steel for shot figure, blasthole of giving a farfetched interpretation one by one to projected depth；
(4) blasthole accomplished fluently is measured, measures the actual depth of blasthole, checks whether there is water, if there is water,
The depth of water in Accurate Determining hole, and carry out drainage of explosive hole；
(5) interval height of blasthole is determined according to the hole depth of measurement, wherein preceding round 4-5m, rear round 6-7m are counted simultaneously
Calculate hole charge；
(6) with porous particulated ammonium oil explosive filling blasthole to design installation position of initiating bomb；
(7) priming bomb of 2 pieces of plastic detonating tube detonators of decentralization installation；
(8) porous particulated ammonium oil explosive is loaded to designing dose with explosive loading truck；
(9) by the blast hole loading structure of design, decentralization compressed air spacer to design position；
(10) blasthole is blocked to aperture Horizon with well cuttings；
(11) it designs according to initiation net by each blasthole line, detonation.
Opencut expand side during, with improve extension bar mode, when getting into drilling machine platform on original two sections drilling rod, I
Carrying out connecing third piece-root grafting bar, we can then drill after having connect bar, have reached conventional roller cone drilling machine and section platform
Drill 24m on face, major diameter of giving a farfetched interpretation ultra-deep blasthole, cooperates the big air-spacer Charge of blasthole, improves the depth of blasthole
Effective rate of utilization reduces explosive detonation wave and crushes the energy consumed excessively to hole wall surrounding rock, extends detonation gas to rock mass
The time of destruction, the effective energy utilization rate and whole expand that explosive broken rock can be improved are helped efficiency, are realized efficient, safety
Expand side operation.
Compared with prior art, advantageous effects of the invention:
By executing above-mentioned technical proposal, the present invention has the advantage that (1) 24m high step compared with existing technology
High density coefficient triangle cloth hole, msdelayed light emission detonation both saved convenient for being formed with the arc scope of freedom conducive to heel row shot hole blasting
Explosive is saved, and shot rock fragmentation quality can be improved, reduces unqualified boulder yield, improves blasting output per meter hole, reduces whole perforation
Quantity；(2) and section high step on, directly implement perforation, explosion and shovel shipment it is defeated, simplify opencut expand help work surface
Quantity improves expansion side operating efficiency, reduces job platform auxiliary production (transport routes, high pressure stringing etc.) expense；(3) exist
Direct operation and on the high step of section, avoids large-scale rotary drill, power shovel and mine car and makees on being layered narrow job platform
Industry reduces influencing each other between longitudinal job platform, and operational security greatly improves；(4) state in the way of improving standby bar
Producing conventional roller cone drilling machine realizes major diameter ultra-deep blasthole of giving a farfetched interpretation, and avoids and introduces the expensive dedicated ultra-deep drilling machine of import；(5)
Carry out big air-spacer powder charge with the excellent ammonium nitrate-fuel oil mixture of detonation property, reduce single hole explosive payload, big air column it is compressible
Property extend detonation gas to the action time of catalase, improve the capacity usage ratio of explosive broken rock, improve demolition effect,
Reduce blasting cost.
Lay Importance on Practical of the present invention, principle is succinctly understandable, easy to operate.Especially there is significant effect in terms of enterprise's cost efficiency
Fruit.The economic benefit for realizing 20,000,000 yuan of helper Cheng Jiangben of expansion or more leads non-coal strip mining transformation technical progress of industry, promotes dew
Technical level is adopted, enterprise's new output value is pulled.
Detailed description of the invention
The invention will be further described for explanation with reference to the accompanying drawing.
Fig. 1 is the main view that opencut 24m High-bench blasting of the present invention expands side structure；
Fig. 2 is the filling structure schematic diagram of blasthole；
Description of symbols: the normal step of 1-；2- and section 24m step；3- blasthole；4- array pitch；5- pitch-row；6- blasthole
Blocking；7- plastic detonating tube detonator；8- air-spacer；9- ammonium nitrate-fuel oil mixture；10- priming bomb；11- blasthole ultra-deep.
Specific embodiment
As illustrated in fig. 1 and 2, a kind of opencut 24m High-bench blasting expands side structure, including normal step 1 and and section
24m step 2, described to be provided with several blastholes 3 and on the 24m step of section, several blastholes 3 are on table top according to triangle
Arrangement, the array pitch 4 of blasthole 3 are 5.0-5.5m, and pitch-row 5 is 15.0-16.0m, the blasthole 3 than it is described and the 24m step of section
2.0~2.5m of ultra-deep, i.e., described 3 depth of blasthole are 26m-26.5m, and the diameter of the blasthole 3 is 310mm；
It is described by being disposed with multiple-row blasting 6, air-spacer 8 and ammonium nitrate-fuel oil mixture 9 under upper in each blasthole 3
Priming bomb 10 is provided in ammonium nitrate-fuel oil mixture 9, the priming bomb 10 is equipped with 2 hair plastic detonating tube detonators 7, the plastic detonating tube thunder
The payment to a porter of pipe 7 extends to 3 outside of blasthole；
In the present embodiment, the height of the multiple-row blasting 6 is 7m；The height of the multiple-row blasting is 7m.The blasthole is stifled
Plug 6 is landwaste powder.Blasthole ultra-deep 11 is 2.5mm.
It is specific as follows that side method is expanded in explosion of the invention:
The present invention has arranged blasthole according to triangular design and on section step in opencut, and Hole pattern parameters are according to array pitch × hole
Away from=(5.0-5.5) m × (15-16) m；It is given a farfetched interpretation 310mm large diameter, deep borehole with the conventional roller cone drilling machine for improving standby bar mode, blasthole
After acceptance(check), upper air spacer powder charge is detonated after multiple-row blasting, line.Realize and section 24.0m high step
On, high density coefficient cloth hole, conventional roller cone drilling machine give a farfetched interpretation superdeep holes, in hole big air-spacer powder charge complex art, realize
Technical goal that is at low cost, expanding side blasting efficiency height and operation safety.
Expand side technology using above-mentioned opencut 24m High-bench blasting, includes the following steps:
(1) first and section the quick-fried area of regional planning to be blasted, according to conditions such as lithology, engineering geology at the scene according to rule
The technical parameter drawn arranges blasthole.By triangular arrangement blasthole, Hole pattern parameters (array pitch × pitch-row=(5.0-5.5) m × (15-
16) m), front-seat blasthole will be adjusted according to the practical bench crest situation in scene, and local protrusion portion position can increase auxiliary blasthole；
(2) blasthole ultra-deep 11 is determined according to conditions such as lithology, the engineering geology for planning quick-fried area (medium hardness rock is with 2.0-
2.5m is advisable).
(3) on the drilling cramp of common domestic rotary drill plus for a drilling rod, in conjunction with two multi pack original on drilling machine for bridge
It realizes 3 drilling rod perforation, meets the normal perforation requirement of 24m high step.With the domestic conventional roller cone drilling machine for improving standby bar mode
According to live steel for shot figure, blasthole of giving a farfetched interpretation one by one to projected depth；
(4) blasthole accomplished fluently is measured, measures the actual depth of blasthole, checks whether there is water, if there is water,
The depth of water in Accurate Determining hole, and carry out drainage of explosive hole；
(5) interval height (preceding round 4-5m, heel row 6-7m) of blasthole is determined according to the hole depth of measurement and calculates blasthole dress
Dose；
(6) blasthole is loaded to design installation position of initiating bomb with porous particulated ammonium oil explosive 9；
(7) the 500g priming bomb 10 of 2 pieces of plastic detonating tube detonators 7 of decentralization installation；
(8) porous particulated ammonium oil explosive 9 is loaded to design dose with explosive loading truck；
(9) by the blast hole loading structure of design, decentralization compressed air spacer (8) to design position；
(10) well cuttings is used to block blasthole 3 to aperture Horizon as multiple-row blasting 6；
(11) it designs according to initiation net by each blasthole line, detonation.
Embodiment described above is only that preferred embodiment of the invention is described, and is not carried out to the scope of the present invention
It limits, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various changes and improvements, should all fall into claims of the present invention determine protection scope in.
Claims (7)
1. a kind of opencut 24m High-bench blasting expands side structure, including normal step and and the 24m step of section, feature exist
In described to be provided with several blastholes and on the 24m step of section, several blastholes are on table top according to triangular arrangement, big gun
The array pitch in hole be 5.0-5.5m, pitch-row 15.0-16.0m, the blasthole than it is described and section 24m step ultra-deep 2.0-
2.5m, i.e., the described blast hole depth are 26m-26.5m, and the diameter of the blasthole is 310mm；
By being disposed with multiple-row blasting, air-spacer and ammonium nitrate-fuel oil mixture, the ammonium nitrate-fuel oil mixture under upper in each blasthole
It is inside provided with priming bomb, the priming bomb is equipped with plastic detonating tube detonator, and the payment to a porter of the plastic detonating tube detonator extends to big gun
On the outside of hole；
The height of the multiple-row blasting is 6-8m, and the height of the air-spacer is 5.0-8.0m.
2. opencut 24m High-bench blasting according to claim 1 expands side structure, which is characterized in that the airspace
The height of device is 6.0-7.0m.
3. opencut 24m High-bench blasting according to claim 2 expands side structure, which is characterized in that the airspace
The height of device is 7m.
4. opencut 24m High-bench blasting according to claim 1 expands side structure, which is characterized in that the multiple-row blasting
Height be 7m.
5. opencut 24m High-bench blasting according to claim 1 expands side structure, which is characterized in that the multiple-row blasting
For landwaste powder.
6. opencut 24m High-bench blasting according to claim 1 expands side structure, which is characterized in that the priming bomb dress
There are 2 hair plastic detonating tube detonators.
7. opencut 24m High-bench blasting described in -6 any one expands side method according to claim 1, which is characterized in that packet
Include following steps:
(1) first and section the quick-fried area of regional planning to be blasted, according to conditions such as lithology, engineering geology at the scene according to planning
Technical parameter arranges blasthole, and by triangular arrangement blasthole, Hole pattern parameters: array pitch 5.0-5.5m, pitch-row 15-16m, front-seat blasthole are wanted
It is adjusted according to the practical bench crest situation in scene, local protrusion portion position can increase auxiliary blasthole；
(2) blasthole ultra-deep is determined according to conditions such as lithology, the engineering geology for planning quick-fried area；
(3) on the drilling cramp of common domestic rotary drill plus for a drilling rod, 3 are realized for bridge in conjunction with two multi pack original on drilling machine
The perforation of root drilling rod meets the normal perforation requirement of 24m high step；With the domestic conventional roller cone drilling machine of the standby bar mode of improvement according to existing
Field steel for shot figure, blasthole of giving a farfetched interpretation one by one to projected depth；
(4) blasthole accomplished fluently is measured, measures the actual depth of blasthole, checks whether there is water, it is accurate if there is water
The depth of water in hole is measured, and carries out drainage of explosive hole；
(5) interval height of blasthole is determined according to the hole depth of measurement, wherein preceding round 4-5m, rear round 6-7m, while calculating big gun
Hole explosive payload；
(6) with porous particulated ammonium oil explosive filling blasthole to design installation position of initiating bomb；
(7) priming bomb of 2 pieces of plastic detonating tube detonators of decentralization installation；
(8) porous particulated ammonium oil explosive is loaded to designing dose with explosive loading truck；
(9) by the blast hole loading structure of design, decentralization compressed air spacer to design position；
(10) blasthole is blocked to aperture Horizon with well cuttings；
(11) it designs according to initiation net by each blasthole line, detonation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568347.0A CN109506530A (en) | 2018-12-21 | 2018-12-21 | A kind of opencut 24m High-bench blasting expands side structure and its side method is expanded in explosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568347.0A CN109506530A (en) | 2018-12-21 | 2018-12-21 | A kind of opencut 24m High-bench blasting expands side structure and its side method is expanded in explosion |
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| CN109506530A true CN109506530A (en) | 2019-03-22 |
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| CN201811568347.0A Pending CN109506530A (en) | 2018-12-21 | 2018-12-21 | A kind of opencut 24m High-bench blasting expands side structure and its side method is expanded in explosion |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132080A (en) * | 2019-06-19 | 2019-08-16 | 内蒙古科技大学 | A kind of open-pit high bench In-hole short delay blasting method |
| CN110360907A (en) * | 2019-07-31 | 2019-10-22 | 中冶集团资源开发有限公司 | A kind of side slope step expansion side blasting method throughout broken jointed rock mass |
| CN110879028A (en) * | 2019-11-05 | 2020-03-13 | 伊春鹿鸣矿业有限公司 | Surface mine blasting technical method for preventing frozen layer from being massive |
| CN111307003A (en) * | 2020-03-26 | 2020-06-19 | 包头钢铁（集团）有限责任公司 | Strip mine 24m high step slope expanding blasting method |
| CN111397451A (en) * | 2020-03-26 | 2020-07-10 | 包头钢铁（集团）有限责任公司 | Strip mine high-step large-aperture buffer blasting method |
| CN114427814A (en) * | 2022-01-28 | 2022-05-03 | 北京理工大学 | Automatic arrangement method and system for blast holes and electronic equipment |
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| CN107957222A (en) * | 2017-11-28 | 2018-04-24 | 武汉大学 | Reduce blasthole spaced loading and the method for ignition of methods of blasting toes in open generation rate |
| CN209588865U (en) * | 2018-12-21 | 2019-11-05 | 包头钢铁（集团）有限责任公司 | A kind of opencut 24m High-bench blasting expansion side structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132080A (en) * | 2019-06-19 | 2019-08-16 | 内蒙古科技大学 | A kind of open-pit high bench In-hole short delay blasting method |
| CN110132080B (en) * | 2019-06-19 | 2022-04-26 | 内蒙古科技大学 | High-step hole inner differential blasting method for strip mine |
| CN110360907A (en) * | 2019-07-31 | 2019-10-22 | 中冶集团资源开发有限公司 | A kind of side slope step expansion side blasting method throughout broken jointed rock mass |
| CN110879028A (en) * | 2019-11-05 | 2020-03-13 | 伊春鹿鸣矿业有限公司 | Surface mine blasting technical method for preventing frozen layer from being massive |
| CN111307003A (en) * | 2020-03-26 | 2020-06-19 | 包头钢铁（集团）有限责任公司 | Strip mine 24m high step slope expanding blasting method |
| CN111397451A (en) * | 2020-03-26 | 2020-07-10 | 包头钢铁（集团）有限责任公司 | Strip mine high-step large-aperture buffer blasting method |
| CN114427814A (en) * | 2022-01-28 | 2022-05-03 | 北京理工大学 | Automatic arrangement method and system for blast holes and electronic equipment |
| CN114427814B (en) * | 2022-01-28 | 2022-10-14 | 北京理工大学 | Automatic blast hole arrangement method and system and electronic equipment |
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