CN106969676B - A kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies - Google Patents
A kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies Download PDFInfo
- Publication number
- CN106969676B CN106969676B CN201710156764.3A CN201710156764A CN106969676B CN 106969676 B CN106969676 B CN 106969676B CN 201710156764 A CN201710156764 A CN 201710156764A CN 106969676 B CN106969676 B CN 106969676B
- Authority
- CN
- China
- Prior art keywords
- blasthole
- rock stratum
- cloth hole
- job platform
- rtk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000005516 engineering process Methods 0.000 title claims abstract description 28
- 230000000694 effects Effects 0.000 title claims abstract description 22
- 238000009966 trimming Methods 0.000 title claims abstract description 18
- 239000011435 rock Substances 0.000 claims abstract description 67
- 238000004880 explosion Methods 0.000 claims abstract description 26
- 238000005422 blasting Methods 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 11
- 239000002360 explosive Substances 0.000 claims abstract description 11
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000009172 bursting Effects 0.000 claims abstract description 6
- 238000010276 construction Methods 0.000 claims description 19
- 238000005065 mining Methods 0.000 claims description 10
- 238000005474 detonation Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000008364 bulk solution Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (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 a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies, include the following steps：Clear up exploiting field topsoil and smooth exposure rock stratum work surface；It is designed according to exposure rock stratum work surface situation, simultaneously explosion of constructing；Quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform；Default cloth hole is carried out on first rock stratum ladder job platform；It is to forbid cloth hole range to delimit the default cloth hole burst region of blasthole ultra-deep " explosive funnel " in first rock stratum ladder job platform with RTK blastholes location technology；Blasthole position is preset to first rock stratum ladder job platform to be adjusted；Implement drilling and blasting operation by the blasthole after adjustment；Quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform；Repeat above-mentioned operation.Blast action of the explosive to rock mass is enhanced, capacity usage ratio is improved, improves blasting quality, to reduce blasting cost；Upper layer blasthole ultra-deep position overlapping cloth hole is avoided, bursting work safety is increased.
Description
Technical field
It is the present invention relates to surface mine blasting technique field, more particularly to a kind of quick-fried based on the improvement of RTK blasthole location technologies
The cloth hole method for trimming of broken effect.
Background technology
Mining industry is the basis of modern industry, is occupied an important position in national economy.Mining industry plays social development
Effect it is clear that the rise with many infant industries in recent years is declined, but still is key pillars of the national economy.
Historian and anthropologist pay much attention to important function of the mineral products for human progress and socio-economic development, it is indicated that
" progress of the mankind is weighed with the ability using mineral, and modern humans are almost completely dependent on mineral kingdom and survive ".
With economic rapid development, the consumption of mineral resources rapidly increases, the enlargement increasingly of strip mining transformation scale and
Occupy suitable proportion.Change to adapt to mine operation condition, needs to improve production efficiency, reduce cost, it will be according to mine
Condition constantly innovation and improvement mining technology, to seek most economical rational evolutionary path.It has been recognized that being known as
The fine blasting procedure of one of current mining technique significant development, can exploit potentialities huge.
The Chinese invention patent of Publication No. CN201110006478.1 discloses reversed in a kind of Long-hole Bench Blasting
Bore distribution method, according to the conventional cloth hole number of rows for determining quick-fried area, pitch-row, array pitch, then according to following steps cloth hole：A. before and after determining minimum
Away from B. arranges that last round, C. arrange forward other each rounds, the adjustment of the most preceding round positions D. successively；According to step bench crest
Neat situation and burden change size, adjust most preceding round, be divided into fine tuning, the perforations adding that reconciles greatly.It can realize explosion adverse grade
Top line is neat；Cloth hole is linearly distributed, and is conducive to movement and the drilling contraposition of drilling machine, is conducive to the drilling efficiency for improving drilling machine；It
The shortcomings that overcoming existing bore distribution method, it is simple and practicable, it not only can guarantee demolition effect, but also be easy to implement bursting work standardization.
The Chinese invention patent of Publication No. CN201610056161.1, which discloses one kind, can effectively reduce surface mine
The blasting method of oversized fragment rate, on pre- explosion perron, according to blasthole Hole pattern parameters-Holespacing of design, blasthole
Array pitch carries out quincunx cloth hole, forms the explosion hole pattern of 2~3 artillery salvo holes composition；Deepen advanced of position setting in blasthole bottom
Quick-fried powder stick, using the In-hole short delay detonating technique of " advanced primer [cartridge] first detonate, detonate after the main charge of top ", using micro- clutch
Blasting technology, realizes the advance faint Crack Damage of bottom hole rock mass, and can effectively avoid top explosive blasting effect to lower stage
The excessive damage of rank rock mass is destroyed, to control the boulder yield of lower step；Simultaneously by the well-designed generation for eliminating foundation,
Mining cost is effectively reduced, enterprises production efficiency and job safety is improved, creates good economic benefit and social benefit.
The method that surface mine mostly uses greatly explosion stage by stage at present is exploited, and entire mine is divided into several exploitations
Stage adopts dress after the completion using identical then from top to bottom to each mining phase respectively into eleven punch 11, explosion, entrucking, transport
Method exploits next stage.This method, in order to overcome foundation, reinforces blasthole bottom when to each stage perforated blasting
Blast action needs to ensure that certain ultra-deep could be realized.There is a series of " explosion on lower step rock mass surface as a result,
Funnel " gives a farfetched interpretation big by " explosive funnel " part difficulty when next stage perforating construction, bit freezing, collapse hole, pore-forming often occurs
Rate is low.Once implementing explosion, since top filling section rock mass is loose, explosive energy leaks too early, and quick-fried heap surface bulk is more, explosion
Effect is poor and easily causes slungshot, leads to a disaster.
Invention content
It can effectively evade each stage blasthole of surface mine the technical problem to be solved in the present invention is to provide one kind and give a farfetched interpretation and apply
There is bit freezing, plug-hole phenomenon in work, it is ensured that blasthole quality and one-tenth porosity reduce the construction method of cost.
In order to solve the above-mentioned technical problem, the technical scheme is that：
It is a kind of based on RTK blasthole location technologies improve demolition effect cloth hole method for trimming, be through ground base station by RTK
The function that difference sends difference information is received and resolved, accurate positioning result is quickly obtained, includes the following steps：
Clear up exploiting field topsoil and smooth exposure rock stratum work surface；
Explosion design, construction blasthole and explosion are carried out according to exposure rock stratum work surface situation；
Quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform；
Default cloth hole is carried out on first rock stratum ladder job platform, carries out aperture label；
With RTK blastholes location technology in first rock stratum ladder job platform by the default of blasthole ultra-deep " explosive funnel "
Cloth hole burst region delimit to forbid cloth hole range；
Blasthole position is preset to first rock stratum ladder job platform to be adjusted；
Implement drilling and blasting operation by the blasthole after adjustment；
Quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform；
Above-mentioned operation is repeated, is moved in circles until mining terminates.
The cleaning exploiting field topsoil and smooth exposure rock stratum work surface take directly clear excavation formula to ensure that dew adopts construction field
Ground reaches perforation construction and bursting work standard.
It is described that according to exposure rock stratum work surface situation progress explosion design, construction blasthole, simultaneously explosion is according to required by each point
Quick-fried high, lithology situation complete cloth hole, perforation, RTK blastholes measure record, cloth medicine, filling, lay the explosions such as network, detonation work
Industry.
The quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform, is to adopt dress place to quick-fried heap to implement cleaning
With hold together heap, and form first rock stratum ladder job platform after passing through entrucking, transport construction.
It is described that default cloth hole is carried out on first rock stratum ladder job platform, aperture label is carried out, refers in formation
First rock stratum ladder job platform plan burst region carries out pre- cloth blasthole, and method scene appropriate is used in combination to indicate.
It is described with RTK blastholes location technology in first rock stratum ladder job platform by blasthole ultra-deep " explosive funnel "
It is to forbid cloth hole range that default cloth hole burst region, which delimited, is the plan burst region use in first rock stratum ladder job platform
Another method scene indicates (being different from default blasthole marker method) upper layer blasthole bottom plane position, and with mark point for circle
The heart and upper layer blasthole ultra-deep length are that radius delimited to forbid cloth hole range.
It is described blasthole position is preset to first rock stratum ladder job platform to be adjusted, it is to blasthole by hole pattern appropriate
Parameter arranged in association again, ensures that blasthole is in and forbids outside cloth bore region.
The blasthole by after adjustment implements drilling and blasting operation, is to assemble equipment according to the cloth hole after adjustment to implement perforation, into
Row RTK blastholes measure record, implement the procedures such as powder charge, filling, line, detonation.
The quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform, is to adopt dress to quick-fried heap according to set process
(including bulk solution is small and foundation is handled) forms next rock stratum ladder job platform.
The above method can avoid perforating on loose media to the maximum extent, effectively overcome bit freezing, plug-hole phenomenon, improve and wear
Hole speed and one-tenth porosity, operability are strong.Evade detonation high pressure gas to leak too early, energy is fully used, explosion matter
Amount is obviously improved, to reduce blasting cost.In addition, due to avoiding upper layer blasthole ultra-deep position cloth hole, explosion fills Duan Jinke
Energy ground is in rock mass, to effective control of flyrock, increases bursting work safety.
Description of the drawings
Fig. 1 is a kind of process flow chart for the cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies；
Fig. 2 is a kind of cloth hole method for trimming construction sectional elevation improving demolition effect based on RTK blasthole location technologies；
Fig. 3 is a kind of cloth hole method for trimming construction top plan view improving demolition effect based on RTK blasthole location technologies.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.In addition, disclosed below
The each embodiment of the present invention in involved technical characteristic can be combined with each other as long as they do not conflict with each other.
Embodiment one
It is a kind of based on RTK blasthole location technologies improve demolition effect cloth hole method for trimming, be through ground base station by RTK
The function that difference sends difference information is received and resolved, accurate positioning result is quickly obtained, includes the following steps：
S101：Clear up exploiting field topsoil 1 and smooth exposure rock stratum work surface 2；
S102：Explosion design, construction blasthole 3 and explosion are carried out according to exposure rock stratum work surface situation；
S103：Quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform；
S104：Default cloth hole is carried out on first rock stratum ladder job platform, carries out aperture label；
S105：With RTK blastholes location technology in first rock stratum ladder job platform by blasthole ultra-deep " explosive funnel " 4
Default cloth hole burst region delimit to forbid cloth hole range；
S106：Blasthole position is preset to first rock stratum ladder job platform to be adjusted；
S107：Implement drilling and blasting operation by the blasthole 3 after adjustment；
S108：Quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform；
S109：Above-mentioned operation is repeated, is moved in circles until mining terminates.
The cleaning exploiting field topsoil and smooth exposure rock stratum work surface take directly clear excavation formula to ensure that dew adopts construction field
Ground reaches perforation construction and bursting work standard.
It is described that according to exposure rock stratum work surface situation progress explosion design, construction blasthole, simultaneously explosion is according to required by each point
Quick-fried high, lithology situation complete cloth hole, perforation, RTK blastholes measure record, cloth medicine, filling, lay the explosions such as network, detonation work
Industry.
The quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform, is to adopt dress place to quick-fried heap to implement cleaning
With hold together heap, and form first rock stratum ladder job platform after passing through entrucking, transport construction.
It is described that default cloth hole is carried out on first rock stratum ladder job platform, aperture label is carried out, refers in formation
First rock stratum ladder job platform plan burst region carries out pre- cloth blasthole, and method scene appropriate is used in combination to indicate.
It is described with RTK blastholes location technology in first rock stratum ladder job platform by blasthole ultra-deep " explosive funnel "
It is to forbid cloth hole range that default cloth hole burst region, which delimited, is the plan burst region use in first rock stratum ladder job platform
Another method scene indicates (being different from default blasthole marker method) upper layer blasthole bottom plane position, and with mark point for circle
The heart and upper layer blasthole ultra-deep length are that radius delimited to forbid cloth hole range.
It is described blasthole position is preset to first rock stratum ladder job platform to be adjusted, it is to blasthole by hole pattern appropriate
Parameter arranged in association again, ensures that blasthole is in and forbids outside cloth bore region.
The blasthole by after adjustment implements drilling and blasting operation, is to assemble equipment according to the cloth hole after adjustment to implement perforation, into
Row RTK blastholes measure record, implement the procedures such as powder charge, filling, line, detonation.
The quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform, is to adopt dress to quick-fried heap according to set process
(including bulk solution is small and foundation is handled) forms next rock stratum ladder job platform.
Embodiments of the present invention are explained in detail above in association with attached drawing, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (9)
1. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies, which is characterized in that the cloth hole is micro-
Tune method includes the following steps：
Clear up exploiting field topsoil and smooth exposure rock stratum work surface；
Explosion design, construction blasthole and explosion are carried out according to exposure rock stratum work surface situation；
Quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform；
Default cloth hole is carried out on first rock stratum ladder job platform, carries out aperture label；
With RTK blastholes location technology in first rock stratum ladder job platform by the default cloth hole of blasthole ultra-deep " explosive funnel "
Burst region delimit to forbid cloth hole range；
Blasthole position is preset to first rock stratum ladder job platform to be adjusted；
Implement drilling and blasting operation by the blasthole after adjustment；
Quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform；
Above-mentioned operation is repeated, is moved in circles until mining terminates.
2. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It is characterized in that, the cleaning exploiting field topsoil and smooth exposure rock stratum work surface, directly clear excavation formula is taken to ensure that dew adopts construction
Place reaches perforation construction and bursting work standard.
3. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It is characterized in that, described according to exposure rock stratum work surface situation progress explosion design, construction blasthole, simultaneously explosion is wanted according to each point
Quick-fried height, lithology situation completion cloth hole, perforation, RTK blastholes measurement record, cloth medicine, filling, laying network, the detonation explosion work asked
Industry.
4. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It is characterized in that, the quick-fried heap, which is adopted, pretends industry, forms first rock stratum ladder job platform, is to adopt dress place to quick-fried heap to implement cleaning
With hold together heap, and form first rock stratum ladder job platform after passing through entrucking, transport construction.
5. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It is characterized in that, it is described that default cloth hole is carried out on first rock stratum ladder job platform, aperture label is carried out, refers in formation
First rock stratum ladder job platform plan burst region carries out pre- cloth blasthole, and method scene appropriate is used in combination to indicate.
6. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
Be characterized in that, it is described with RTK blastholes location technology in first rock stratum ladder job platform by blasthole ultra-deep " explosive funnel "
Default cloth hole burst region delimit to forbid cloth hole range, be the plan burst region in first rock stratum ladder job platform
Alternatively scene mark upper layer blasthole bottom plane position, and with mark point for the center of circle and upper layer blasthole ultra-deep length
It delimited for radius to forbid cloth hole range.
7. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It is characterized in that, it is described blasthole position is preset to first rock stratum ladder job platform to be adjusted, it is to blasthole by hole appropriate
Network parameters arranged in association again, ensures that blasthole is in and forbids outside cloth bore region.
8. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It being characterized in that, the blasthole by after adjustment implements drilling and blasting operation, is to assemble equipment according to the cloth hole after adjustment to implement perforation, into
Row RTK blastholes measure record, implement powder charge, filling, line, detonation procedures.
9. a kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies according to claim 1,
It is characterized in that, the quick-fried heap, which is adopted, pretends industry, forms second rock stratum ladder job platform, is to adopt dress to quick-fried heap according to set process
Form next rock stratum ladder job platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156764.3A CN106969676B (en) | 2017-03-16 | 2017-03-16 | A kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156764.3A CN106969676B (en) | 2017-03-16 | 2017-03-16 | A kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106969676A CN106969676A (en) | 2017-07-21 |
| CN106969676B true CN106969676B (en) | 2018-08-10 |
Family
ID=59329698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710156764.3A Active CN106969676B (en) | 2017-03-16 | 2017-03-16 | A kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106969676B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388909A (en) * | 2017-08-11 | 2017-11-24 | 中国葛洲坝集团易普力股份有限公司 | A kind of quick-fried area's bore distribution method precisely, quick, intelligent |
| CN112033248B (en) * | 2020-09-11 | 2022-10-18 | 新疆安能爆破工程有限公司 | Method for processing blind cannon |
| CN114754643A (en) * | 2022-04-26 | 2022-07-15 | 宏大爆破工程集团有限责任公司 | RTK line lofting and hole distribution construction method in open bench blasting |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927865B (en) * | 2012-11-12 | 2014-09-17 | 北京速力科技有限公司 | High-accuracy global system positioning (GPS) geared drill automatic hole arrangement system |
| CN104141483B (en) * | 2014-07-25 | 2017-05-03 | 北京北矿亿博科技有限责任公司 | Digital drilling control method and system for open-pit deep hole blasting |
| CN104533528B (en) * | 2015-01-23 | 2016-06-29 | 中国有色金属长沙勘察设计研究院有限公司 | Adopt the fine mining system of surface mine and the mining methods of GNSS technology |
-
2017
- 2017-03-16 CN CN201710156764.3A patent/CN106969676B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106969676A (en) | 2017-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106969676B (en) | A kind of cloth hole method for trimming improving demolition effect based on RTK blasthole location technologies | |
| CN107035370A (en) | One kind cuts top pressure relief method for gob side entry retaining static crushing | |
| CN104913696A (en) | Side slope excavation smooth-surface blasting-method construction method | |
| CN102607342A (en) | Blasting method controlling damage of damage rings of tunnel | |
| CN103528444B (en) | A kind of stope rockburst pressure relief prevention method | |
| CN109631698A (en) | A kind of space interval charge explosion method reducing boulder yield | |
| CN110595308B (en) | Method for treating goaf by ultra-deep hole blasting of strip mine | |
| CN107607006A (en) | Method and device based on flexible linear-shaped charge cutting large diameter bolt | |
| CN106767213B (en) | A kind of Roof Control blasting method of soft broken top plate ore body back production | |
| CN109238055A (en) | A kind of medium-length hole segment blast method and device | |
| CN110260735A (en) | A kind of diamond shape major diameter emptying aperture burn cut structure and lane construction technique | |
| CN108005653A (en) | A kind of high stratification mechanization raise mining method | |
| CN110132080A (en) | A kind of open-pit high bench In-hole short delay blasting method | |
| CN109373843A (en) | A kind of no courtyard deep hole kerf blasting method | |
| CN102735122A (en) | Strip mine drilling blasting method | |
| CN104807381B (en) | Method for forming cutting surface in deep hole blasting | |
| CN102620614B (en) | Cave depot is slagged tap the construction method of funnel | |
| CN110879028A (en) | Surface mine blasting technical method for preventing frozen layer from being massive | |
| CN109827484A (en) | A kind of huge thick tight roof orientation presplitting of highly gassy mine loosens method | |
| CN104790950B (en) | Optimized mining middle-deep blasthole millisecond blasting slot cutting method | |
| CN108952726A (en) | Have an opencast mining of the neighbouring step dislocation perforation method of medium-length hole blasting | |
| CN114111479A (en) | Tunnel blasting auxiliary hole arrangement method | |
| CN103410513B (en) | Uneasily mining orebody mechanization process for stoping | |
| CN110671979A (en) | Controlled blasting method for forming cutting well by deep hole extrusion blasting | |
| CN107024153B (en) | Underwater rock plug burst gyro distribution coyote hole method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: The old town of Longyan city Fujian County 364200 County of Shanghang Province Jing Mei Cun, Zijin Mountain Applicant after: Fujian Xinhua Engineering Co., Ltd. Address before: 361012 North 19 floor, Pacific square, No. 331, Jiahe Road, Xiamen, Fujian Applicant before: Fujian Xinhua Engineering Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |