CN109252869A - It digs up mine a kind ofly mountain medium-length hole cloth pore structure - Google Patents
It digs up mine a kind ofly mountain medium-length hole cloth pore structure Download PDFInfo
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- CN109252869A CN109252869A CN201811311644.7A CN201811311644A CN109252869A CN 109252869 A CN109252869 A CN 109252869A CN 201811311644 A CN201811311644 A CN 201811311644A CN 109252869 A CN109252869 A CN 109252869A
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- 239000004744 fabric Substances 0.000 title claims abstract description 25
- 239000011148 porous material Substances 0.000 title claims abstract description 23
- 230000003245 working effect Effects 0.000 claims abstract description 14
- 238000005065 mining Methods 0.000 claims abstract description 12
- 239000002360 explosive Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005422 blasting Methods 0.000 abstract description 27
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 description 24
- 239000011435 rock Substances 0.000 description 8
- 238000005553 drilling Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 244000018633 Prunus armeniaca Species 0.000 description 1
- 235000009827 Prunus armeniaca Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- 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
- 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)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses mountain medium-length hole cloth pore structures of digging up mine a kind ofly, it include: stope drift active workings, blasthole more than a row, wherein, the one end in every artillery salvo hole is directed on the center line of stope drift active workings, and the radial mode of the other end in every artillery salvo hole extends into ground mining mountain；In every artillery salvo hole, the bottom hole pitch between adjacent blasthole is different；In blasthole more than one row, adjacent two rows of blastholes are one group, in one group of blasthole, the blasthole of previous row than latter row blasthole more than one, and the blasthole interlaced arrangement of adjacent row.The present invention passes through size array pitch arranged for interval, and adjacent row blasthole interlaced arrangement easily occurs adjacent row when efficiently solving traditional short-delay blasting and corresponds to blasthole breakdown, easily causes outstanding top, ore boulder yield high and the non-blast hole of the heel row technical problem that destroy ore recovery ratio caused by situations such as serious low.
Description
Technical field
The present invention relates to mining technique field more particularly to a kind of mountain medium-length hole cloth pore structures of digging up mine.
Background technique
With the high speed development of social and economic construction, each industry is also growing day by day to the demand of mineral resources, and deep hole is quick-fried
Extensive promotion and application of the broken technology in mining production, make the blasting quality, explosion precision and shotfiring safety in mine
Effective guarantee is obtained.Especially in the heavy constructions such as railway, mine, reservoir, blasting technique plays very crucial work
With.When cutting into a mountain of repairing the roads of mining is holed with city to the dismounting of old building, blasting technique can be all used.With economy
Development, engineering construction increase, and explosion also results in people and more pay close attention to.Explosion is widely used as a kind of science and technology,
And cut into a mountain in mining, it repairs more obvious in the engineerings such as railway, digging tunnel.
But present inventor during technical solution, has found the above-mentioned prior art extremely in realizing the embodiment of the present application
It has the following technical problems less:
Traditionally when mining mountain gun hole rock drilling, front and rear row blasthole bottom hole pitch is identical in an ore caving interval, adjacent row blasthole
Hole count is identical, and array pitch is equal.Front and rear row same holes gunfire hole site is corresponding, and when short-delay blasting adjacent row easily occurs and corresponds to blasthole
Breakdown, especially when ore body joint plane is vertical with medium-length hole row face, blasting energy is discharged along joint fissure face, and energy is caused to damage
Consumption.After blast hole projectile filling blast working, outstanding top is easily caused, the generation of ore bulk is more, and the non-blast hole of heel row destroys situations such as serious,
It is final to influence ore recovery ratio.
Summary of the invention
The embodiment of the present invention is by providing mountain medium-length hole cloth pore structure of digging up mine a kind ofly, because of ore bulk when reducing ore drawing
Situations such as rate is high, the heel row non-blasting hole well damage low technical problem of caused ore recovery ratio.
To solve the above-mentioned problems, the embodiment of the invention provides mountain medium-length hole cloth pore structure of digging up mine a kind ofly, the knots
Structure includes: stope drift active workings, blasthole more than a row, wherein one end of blasthole described in every row is directed in the stope drift active workings
On heart line, the radial mode of the other end of blasthole described in every row extends into ground mining mountain；In blasthole described in every row, phase
Bottom hole pitch between adjacent blasthole is different；In blasthole more than one row, adjacent two rows of blastholes are one group, preceding in one group of blasthole
The blasthole of one row than latter row blasthole more than one, and the blasthole interlaced arrangement of adjacent row.
Preferably, in three adjacent artillery salvo holes, the spacing between preceding two rows blasthole is less than the spacing between rear two rows of blastholes.
Preferably, in three adjacent artillery salvo holes, collapsing between the ore caving interval and rear two rows of blastholes between preceding two rows blasthole
Mine step pitch is consistent.
Preferably, the array pitch of 2N+1 row and 2N row are 2.2 meters, and the array pitch of the 2N row and 2N-1 row are 1.6
Rice, the N are positive integer.
Preferably, the bottom hole pitch of the 2N-1 row is less than the bottom hole pitch of 2N row, and the N is positive integer.
Preferably, the bottom hole pitch of the 2N-1 row is 2.3-2.5 meters, and the bottom hole pitch of the 2N row is 2.6-2.8 meters,
The N is positive integer.
Preferably, the explosive payload in the 2N-1 artillery salvo hole is greater than the explosive payload in the 2N artillery salvo hole, and the N is positive whole
Number.
Preferably, the number of rows of the blasthole is 2N, and the N is positive integer.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
Mountain medium-length hole cloth pore structure provided by the invention of digging up mine a kind ofly, comprising: blastholes more than stope drift active workings, a row,
Wherein, the one end in every artillery salvo hole is directed on the center line of stope drift active workings, the radial mode of the other end in every artillery salvo hole
Extend into ground mining mountain；In every artillery salvo hole, the bottom hole pitch between adjacent blasthole is different；It is adjacent in blasthole more than one row
Two rows of blastholes be one group, in one group of blasthole, the blasthole of previous row than latter row blasthole more than one, and the blasthole of adjacent row is handed over
Mistake arrangement.When efficiently solving traditionally mining mountain gun hole rock drilling, because front and rear row blasthole bottom hole pitch is identical in an ore caving interval,
Adjacent row blasthole hole count is identical, and array pitch is equal, and front and rear row same holes gunfire hole site is corresponding, caused by short-delay blasting when easily go out
Existing adjacent row corresponds to blasthole breakdown, and especially when ore body joint plane is vertical with medium-length hole row face, blasting energy is along joint fissure face
Release, causes energy loss.After blast hole projectile filling blast working, outstanding top is easily caused, ore bulk generates more, the non-blast hole of heel row
Situations such as serious is destroyed, final the technical issues of influencing ore recovery ratio.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the pattern schematic diagram of mountain medium-length hole cloth pore structure of digging up mine a kind ofly in the embodiment of the present invention；
Fig. 2 is the array pitch schematic diagram of mountain medium-length hole cloth pore structure of digging up mine a kind ofly in the embodiment of the present invention；
Fig. 3 be conventional blast mode etc. array pitch steel for shot schematic diagram.
Description of symbols: stope drift active workings 1；Blasthole 2；Bottom hole pitch 3；Ore caving interval 4.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the pattern schematic diagram of mountain medium-length hole cloth pore structure of digging up mine a kind ofly in the embodiment of the present invention.Such as Fig. 1 institute
Show, the mountain medium-length hole cloth pore structure of digging up mine a kind ofly of the embodiment of the present invention, comprising: blastholes 2 more than stope drift active workings 1, a row,
In, the one end in every artillery salvo hole 2 is directed on the center line of stope drift active workings 1, the radial mode of the other end in every artillery salvo hole 2
Extend into ground mining mountain；In every artillery salvo hole 2, the bottom hole pitch 3 between adjacent blasthole 2 is different, in blasthole 2 more than a row,
Adjacent two rows of blastholes 2 are one group；In one group of blasthole 2, the blasthole 2 of previous row is than blasthole more than 2 one of latter row, and adjacent row
2 interlaced arrangement of blasthole.By such cloth pore structure, can effectively solve traditionally to dig up mine 2 rock drilling of mountain gun hole when, because of an ore caving
2 bottom hole pitch of front and rear row blasthole is 3 identical in step pitch 4,2 hole count of adjacent row blasthole is identical, array pitch is equal, front and rear row same holes gunfire hole
2 positions are corresponding, caused by short-delay blasting when easily occur adjacent row correspond to blasthole 2 breakdown, especially in ore body joint plane and middle depth
When hole row face is vertical, blasting energy is discharged along joint fissure face, and energy loss is caused to easily cause after the construction of 2 charge explosion of blasthole
Outstanding top, the generation of ore bulk is more, and the non-blast hole of heel row destroys situations such as serious, and the final technology for influencing ore recovery ratio is asked
Topic.The present invention passes through size array pitch arranged for interval, and 2 interlaced arrangement of adjacent row blasthole, keeps blasting energy more balanced, reaches
Explosive specific charge is reduced, ore bulk generation rate is reduced, improves demolition effect, while heel row blasthole 2 is reduced, arranges array pitch with non-explosion
It increases, after explosion under the premise of guaranteeing front ore avalanche, the technology for reducing the destruction to the non-blasting hole in rear 2 is imitated
Fruit.
As shown in Figure 1, when carrying out 2 jewel hole of blasthole, the fan-shaped distribution of the blasthole 2 of odd row and even rows.
In conjunction with Fig. 1, less than the bottom hole pitch 3 that 2N is arranged, i.e. the bottom hole pitch 3 of odd row is less than even the bottom hole pitch 3 of 2N-1 row
The bottom hole pitch 3 of number row.Wherein, the bottom hole pitch 3 between adjacent shot hole 2 between 2 bottom of blasthole and adjacent shot hole 2 it is horizontal away from
From.The bottom hole pitch 3 of odd row is 2.3-2.5 meters, and the bottom hole pitch 3 of even rows is 2.6-2.8 meters.
Specifically, the bottom hole pitch 3 of even rows is 2.77 meters, Ci Zhongshe as shown in Figure 1, the bottom hole pitch 3 of odd row is 2.5m
Meter is to be adjusted on the basis of original bottom hole pitch 3 to the bottom hole pitch 3 of odd row and even rows, wherein odd row bottom hole pitch
3 are less than the bottom hole pitch 3 of even rows.The bottom hole pitch 3 of odd row is 2.3-2.5 meters in practical application, and the bottom hole pitch 3 of even rows is
2.6-2.8 rice.Such design can make blasting energy more balanced.While reducing heel row blasthole, non-explosion row is increased
The destruction to the non-blasting hole in rear is reduced after explosion under the premise of guaranteeing front ore avalanche with front-seat array pitch.
Fig. 2 is the array pitch schematic diagram of mountain medium-length hole cloth pore structure of digging up mine a kind ofly in the embodiment of the present invention.Fig. 3 is that tradition is quick-fried
Broken mode etc. 2 arrangement schematic diagram of array pitch blasthole.In conjunction with Fig. 2, Fig. 3, in three adjacent artillery salvo holes 2, it is preceding two rows blastholes 2 it
Between spacing be less than the spacing between rear two rows of blastholes 2.Ore caving interval in three adjacent artillery salvo holes 2, between preceding two rows blasthole 2
Ore caving interval 4 between 4 and rear two rows of blastholes 2 is consistent.To guarantee demolition effect, 2N+1 row is 2.2 with the array pitch that 2N is arranged
The array pitch of rice, 2N row and 2N-1 row are 1.6 meters, and N is positive integer.
Specifically, as shown in figure 3, when conventional blast mode carries out explosion, 2 hole of front and rear row blasthole in an ore caving interval 4
Bottom is identical away from 3, and 2 hole count of adjacent row blasthole is identical, and array pitch is equal.2 positions of front and rear row same holes gunfire hole are corresponding, short-delay blasting
When easily there is adjacent row and correspond to the breakdown of blasthole 2, especially ore body joint plane and medium-length hole arrange face it is vertical when, blasting energy is along joint
Fissure-plane release, causes energy loss.After the construction of 2 charge explosion of blasthole, outstanding top is easily caused, ore bulk generates more, heel row
Non- blast hole destroys situations such as serious, finally influences ore recovery ratio.Therefore, to guarantee that odd row blasting energy does not waste, together
When even rows blasting energy it is enough, in the case where ore caving interval 4 is constant, increase odd row and front-seat spacing, reduce even rows
With front-seat spacing, size array pitch arranged for interval is formed, odd row and front-seat array pitch are greater than even rows and front-seat array pitch, and collapse
Mine step pitch 4 is constant.To guarantee that demolition effect, odd row and front-seat array pitch are 2.2 meters, even rows and front-seat array pitch are 1.6
Rice.It can also can rock drilling parameter determines according to actual conditions, adjustment front and rear row hole count and front and rear row array pitch.
Preferably, 2N-1 is arranged when every separate explosion, i.e. 2 burden of front-seat blasthole is big, and explosive payload is big, 2N row, i.e. heel row
The small explosive payload of 2 burden of blasthole is small.Odd row blasthole 2 is at front row, and even rows blasthole 2 is in heel row, therefore the dress of odd row blasthole 2
Dose is greater than the explosive payload of the even rows blasthole 2.
Preferably, forbidding occurring last row when charge explosion in blasting work is porous row, and odd row is porous row,
Even rows are less porous row, therefore the number of rows of blasthole 2 is necessary for 2N when cloth hole, and N is positive integer, i.e., the number of rows in last tier hole 2
It is necessary for even number.
Preferably, normal point, i.e., the back production position of normal section in stope drift active workings 1, using 4 explosion of ore caving interval
Two rows of modes carry out explosion, and the big point of empty top area, i.e. stope drift active workings 1 intersect with another tunnel, similar T-shaped road junction
Position, the point section is larger, then the mode that 4 explosion of ore caving interval, four row can be used carries out explosion.
Dig up mine in the prior art 2 rock drilling of mountain gun hole when, 2 bottom hole pitch of blasthole, 3 phase of front and rear row in an ore caving interval 4
Together, 2 hole count of adjacent row blasthole is identical, and array pitch is equal.2 positions of front and rear row same holes gunfire hole are corresponding, and when short-delay blasting easily goes out
Existing adjacent row corresponds to the breakdown of blasthole 2, and especially when ore body joint plane is vertical with medium-length hole row face, blasting energy is along joint fissure face
Release, causes energy loss.After the construction of 2 charge explosion of blasthole, outstanding top is easily caused, ore bulk generates more, the non-explosion of heel row
Situations such as serious, is destroyed in hole, finally influences ore recovery ratio.And mountain medium-length hole cloth pore structure provided by the invention of digging up mine a kind ofly
It is to carry out falling mine and ore drawing by ore caving interval 4 since 1 one end of stope drift active workings.When blasting boreholes, one ore caving step of normal point
Away from 4 onepulls two rows, the big point ore caving interval 4 of empty top area increases, four row of onepull.When medium length blasting design, one
Odd row and even rows use different bottom hole pitch 3 in ore caving interval 4, and odd row bores a blasthole 2 more than even rows.Winding displacement cloth
Odd row and front-seat spacing are increased when setting, and are reduced even rows and front-seat spacing, are formed size array pitch arranged for interval.Medium-length hole
When rock drilling is constructed, it is necessary to construct in strict accordance with design requirement.When charge explosion, still according to one ore caving step of normal point
Two rows of away from onepull in 4, to carry out powder charge quick-fried for the mode of four row of onepull in one ore caving interval 4 when empty top area is larger
It is broken.
The present invention realizes 2 interlaced arrangement of adjacent big gun artillery salvo hole, size array pitch interval by adjusting adjacent row rock drilling parameter
Arrangement, keeps blasting energy more balanced, reduces ore bulk generation rate after explosion, meanwhile, it also reduces to the non-explosion of heel row
The destruction of blasthole has achieved the purpose that improve demolition effect.
Compared with prior art, the present invention has the advantage that the present invention is compared with traditional pattern, by adjusting chisel
Rock parameter realizes front-seat porous, heel row less porous, the spaced apart mode of front and rear row size array pitch.Front row is supported when every separate explosion
Anti- line is big, and explosive payload is big, and the small explosive payload of heel row burden is small.And 2 interlaced arrangement of adjacent row blasthole, when powder charge adjacent two rows of blastholes
2 explosives are uniformly distributed, and blasting energy is more balanced.Simultaneously heel row blasthole 2 reduce, with non-explosion row array pitch increase, after explosion
Under the premise of guaranteeing front ore avalanche, the destruction to the non-blasting hole in rear 2 is reduced.And the one of the embodiment of the present invention
On apricot mountain, iron ore begins to use kind ground mining mountain medium-length hole cloth pore structure, and achieves better effects.Efficiently solve rear
Non- blast hole 2 loses the occurrence of row and row of burying, and 2 percentage of plugged hole of blasthole is reduced to 25.5% by original 30%, ore boulder yield
21.53 ‰ are reduced to by original 21.9 ‰.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (8)
1. mountain medium-length hole cloth pore structure of digging up mine a kind ofly, which is characterized in that the structure includes: stope drift active workings, more than a row
Blasthole, wherein
One end of blasthole described in every row is directed on the center line of the stope drift active workings, and the other end of blasthole described in every row is in put
The mode for penetrating shape extends into ground mining mountain；
In blasthole described in every row, the bottom hole pitch between adjacent blasthole is different；
In blasthole more than one row, adjacent two rows of blastholes are one group, in one group of blasthole, the big gun of the blasthole of previous row than latter row
Kong Duoyi, and the blasthole interlaced arrangement of adjacent row.
2. cloth pore structure as described in claim 1, which is characterized in that in three adjacent artillery salvo holes, between preceding two rows blasthole
Spacing is less than the spacing between rear two rows of blastholes.
3. cloth pore structure according to claim 2, which is characterized in that in three adjacent artillery salvo holes, between preceding two rows blasthole
Ore caving interval and rear two rows of blastholes between ore caving interval it is consistent.
4. cloth pore structure as claimed in claim 2, which is characterized in that the array pitch of 2N+1 row and 2N row are 2.2 meters, described
The array pitch of 2N row and 2N-1 row are 1.6 meters, and the N is positive integer.
5. cloth pore structure as claimed in claim 4, which is characterized in that the bottom hole pitch of the 2N-1 row is less than the 2N
The bottom hole pitch of row, the N are positive integer.
6. cloth pore structure as claimed in claim 5, which is characterized in that the bottom hole pitch of the 2N-1 row is 2.3-2.5 meters, institute
The bottom hole pitch for stating 2N row is 2.6-2.8 meters, and the N is positive integer.
7. cloth pore structure as claimed in claim 6, which is characterized in that the explosive payload in the 2N-1 artillery salvo hole is greater than described the
The explosive payload in 2N artillery salvo hole, the N are positive integer.
8. cloth pore structure as described in claim 1, which is characterized in that the number of rows of the blasthole is 2N, and the N is positive integer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811311644.7A CN109252869A (en) | 2018-11-06 | 2018-11-06 | It digs up mine a kind ofly mountain medium-length hole cloth pore structure |
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| CN201811311644.7A CN109252869A (en) | 2018-11-06 | 2018-11-06 | It digs up mine a kind ofly mountain medium-length hole cloth pore structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454158A (en) * | 2019-09-18 | 2019-11-15 | 中国恩菲工程技术有限公司 | Fan shaped medium length hole charge constitution and fan shaped medium length hole blasting method |
| CN113090265A (en) * | 2021-05-19 | 2021-07-09 | 安徽马钢张庄矿业有限责任公司 | Novel 90m high and middle section fan-shaped deep hole stoping method |
| CN113154973A (en) * | 2021-05-07 | 2021-07-23 | 中国华冶科工集团有限公司 | Mining blasting method |
| CN113154976A (en) * | 2021-05-19 | 2021-07-23 | 安徽马钢张庄矿业有限责任公司 | Novel fan-shaped deep hole distribution method for mining blasting |
| CN113847033A (en) * | 2021-10-29 | 2021-12-28 | 海南矿业股份有限公司 | Mining medium-length hole rock drilling and blasting method |
| CN114812310A (en) * | 2022-04-08 | 2022-07-29 | 海南矿业股份有限公司 | Combined mining medium-length hole rock drilling and blasting method |
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| 师宏伟: "杏山铁矿高分段回采爆破参数研究", 《现代矿业》 * |
| 胡华: "对扇形中深孔爆破能量分布规律的再认识", 《金属矿山》 * |
Cited By (7)
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| CN110454158A (en) * | 2019-09-18 | 2019-11-15 | 中国恩菲工程技术有限公司 | Fan shaped medium length hole charge constitution and fan shaped medium length hole blasting method |
| CN110454158B (en) * | 2019-09-18 | 2024-07-30 | 中国恩菲工程技术有限公司 | Sector medium-length hole charging structure and sector medium-length hole blasting method |
| CN113154973A (en) * | 2021-05-07 | 2021-07-23 | 中国华冶科工集团有限公司 | Mining blasting method |
| CN113090265A (en) * | 2021-05-19 | 2021-07-09 | 安徽马钢张庄矿业有限责任公司 | Novel 90m high and middle section fan-shaped deep hole stoping method |
| CN113154976A (en) * | 2021-05-19 | 2021-07-23 | 安徽马钢张庄矿业有限责任公司 | Novel fan-shaped deep hole distribution method for mining blasting |
| CN113847033A (en) * | 2021-10-29 | 2021-12-28 | 海南矿业股份有限公司 | Mining medium-length hole rock drilling and blasting method |
| CN114812310A (en) * | 2022-04-08 | 2022-07-29 | 海南矿业股份有限公司 | Combined mining medium-length hole rock drilling and blasting method |
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Application publication date: 20190122 |