CN104807381B - Method for forming cutting surface in deep hole blasting - Google Patents
Method for forming cutting surface in deep hole blasting Download PDFInfo
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- CN104807381B CN104807381B CN201510065902.8A CN201510065902A CN104807381B CN 104807381 B CN104807381 B CN 104807381B CN 201510065902 A CN201510065902 A CN 201510065902A CN 104807381 B CN104807381 B CN 104807381B
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Abstract
The invention discloses a method for forming a cutting surface in deep hole blasting, and relates to the technical field of underground mining blasting. The structure comprises a central charge hole (1), an empty hole (2), an auxiliary charge hole (3), cutting scallop holes (4) and emission centers (5). The structure achieves the purpose of deep hole blasting cutting, a recovery cutting process is simplified, cutting efficiency is improved, cutting cost is reduced, benefits are remarkable, ore recovery rate is increased, recovery cost is reduced, the cutting scallop holes are distributed in the double emission centers, cutting effects are improved, a cutting operation environment is effectively improved, the physical and psychological health of staff is guaranteed, cutting and recovery are integrated in production, three-grade reserve remaining period can be reduced, and the fund utilization efficiency of a mining engineering is improved.
Description
Technical field
The present invention relates to underground mining blasting technique field, specifically one kind form cutting in being applied to deep hole blasting
The method in face.
Background technology
At home in the cutting action of sublevel caving method without sill pillar, the initial cutting scope of freedom is using wind mostly by manually
Dynamic rock drilling equipment（YG90 or YT28 rock drills）, construction slot raise or cutting chamber blasting formed（Claim conventional cutting method）.
There is low production efficiency in the method for manually driving cutting engineering, labor intensity is high, and working environment is poor, and the protrusion such as production cost height is asked
Topic, and affect the ore deposit actual mining that falls of follow-up Ore.
1st, traditional artificial construction's cutting engineering falls in cutting borehole drilling and deep hole, is back production work
Make a requisite preparation.Manually being drived cutting engineering is affected, make the borehole drilling operation of cutting work with
The back production mine order that falls can not form organically engagement, affect back production production efficiency.
2nd, using courtyard is manually drived, the engineering time is long for conventional cutting method, cuts inefficiency.Root is according to the relevent statistics
Data, often covered the slot raise engineering time at 10-15 days, and the cutting chamber time is longer at 15-30 days.
3rd, conventional cutting method is constructed in the courtyard due to operator, because substantial amounts of dust and water are produced during rock drilling
Mist, air pollution are serious, and working environment is severe, greatly affect the physical and mental health of operating personnel.
4th, conventional cutting method production cost is high.According to statistics, slot raise cutting cost is 27000 yuan/set, chamber cutting
Cost 40000-60000 units/set.
5th, conventional cutting method causes the higher ore losses of cutting part.Using the cutting method of slot raise, due to
Courtyard both sides are entity, further expand the scope of freedom, and the expansion on scope of freedom face slit is little after needing construction medium-length hole blasting
Force power to do one's bidding greatly and deep hole is difficult the impact of cloth hole, The Small Well both sides cutting effect is poor, and ore recovery ratio is low.Cut using chamber blasting
Cut, then it is uneven to there is cutting part Ore explosion, the lower situation of the response rate.According to statistics, the ore deposit of chamber blasting cutting part
The stone response rate is only 40-60%, and ore loss ratio is more than 3 times of ore deposit deep hole that normally fall.
The content of the invention
The present invention proposes a kind of method for being applied to formation facet in deep hole blasting, and the structure is applied to one in deep hole
Separate explosion forms facet, simplifies back production cutting action, improves cutting efficiency, reduce cutting cost, realizes to cut and adopt
Institutional operation.
For achieving the above object, a kind of method for being applied to formation facet in deep hole blasting of the present invention, its feature
It is：The setting of blow-up point includes central charge hole, emptying aperture, deformation charge hole, cutting scallop hole and emission center；The center
Powder charge hole position is in the center of emptying aperture；The emptying aperture is parallel with central charge hole；The deformation charge hole is symmetrical with central charge hole
Arrange；Cutting scallop hole is two row's fanhole(s)s, and trestle column is 2000mm, and positioned at the left and right sides in deformation charge hole；It is described
Emission center is located on two emission center points of cutting scallop hole；
During the explosion, firing order is followed successively by central charge hole → deformation charge hole → cutting scallop hole；Cutting is fan-shaped
Hole is with the center of cutting to both sides successively explosion；During Cutting Blasting, central charge hole, deformation charge hole, cutting scallop hole adopt one
The method of secondary property powder charge segmentation detonation, explosion space first by four emptying apertures bear regions expand as deformation charge hole burden region,
Cutting scallop hole burden region, ultimately forms follow-up deep hole and falls the explosion scope of freedom of ore deposit.
The central charge hole is primary blasting blasthole, is formed with sky after explosion with large aperture emptying aperture around as the scope of freedom
Space of the hole for profile, the explosion for deformation charge hole provide the scope of freedom and compensation space；Central charge bore dia φ 100mm,
Constructed using the rock drilling of Simba364 type chassis, blast hole depth：＜ 25m, 1 ° of blasthole construction precision ＜.
The initial compensation space that the emptying aperture is disposably cut for deep hole, emptying aperture blasthole diameter：φ 115-150mm, depth：
＜ 25m, blasthole number are 4-6 holes；Borehole spacing：600mm-700mm.
The deformation charge hole is the blasthole for further expanding cutting deep hole blasting compensation space, and which opens up number for 6, point
To cut the inside deformation charge hole in scallop hole and the external auxiliary powder charge hole outside cutting scallop hole；Internal deformation charge hole is
2, external auxiliary powder charge hole is 4, and deformation charge bore dia is：φ 100mm, depth：＜ 25m；Between internal deformation charge hole
Away from for 1800-2000mm, external auxiliary powder charge hole spacing on the outside of the cutting scallop hole is 1200-1500mm, and the spacing of inner side is
2500-3000mm；During the explosion, firing order is followed successively by central charge hole → inside deformation charge hole → external auxiliary powder charge
Hole → cutting scallop hole；Cutting scallop hole is with the center of cutting to both sides successively explosion；During Cutting Blasting, central charge hole, auxiliary
The method that powder charge hole, cutting scallop hole are segmented detonation using disposable powder charge, explosion space are first born region by four emptying apertures and are expanded
Greatly deformation charge hole burden region, cutting scallop hole burden region, ultimately form follow-up deep hole and fall the explosion scope of freedom of ore deposit.
The cutting scallop hole is two rows sector deep hole, and trestle column is 2000mm；Often row's cutting scallop hole is radiated for two
Center, center distance are 2000mm；Its aperture is φ 100mm, is constructed using the rock drilling of Simba364 type chassis, blasthole precision ＜
1 °, bottom hole pitch 1.0-1.8m.
The rock drilling of the cutting scallop hole, can adopt Simba364 types chassis one-off construction when construction falls ore deposit deep hole
（When the ore deposit that falls deep hole adopts same apertures）, ore deposit deep hole of also first can constructing, afterwards with Simba364 types chassis construction cutting scallop hole.
Firing order blasting time section adjacent successively is not less than 500ms.
A kind of method for being applied in deep hole blasting form facet of the present invention, its advantage is：By height
Effect rock drilling equipment drives high-precision blasthole, and takes blasting technique means, realizes the purpose of deep hole blasting cutting, simplifies back
Cutting technique is adopted, cutting efficiency is improved；Reduce cutting cost, remarkable benefit；Improve ore recovery rate, reduce back production into
This；Cutting scallop hole improves cutting effect using double emission center patterns；Cutting operation environment is effectively improved, is protected
Worker is hindered physically and mentally healthy；Realize cutting production integrated with actual mining, it is possible to decrease explored ore reserve is possessed the phase, and raising is adopted
Ore deposit engineering funds utilization ratio.
Description of the drawings
1 deep hole of accompanying drawing once cuts the vertical schematic diagram of steel for shot；
2 deep hole of accompanying drawing once cuts steel for shot level schematic diagram；
In figure：1- central charges hole, 2- emptying apertures, 3- deformation charges hole, 4- cutting scallop holes, 5- emission centers.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment one of embodiment only of the invention, rather than the embodiment of whole.
Based on the embodiment in the present invention, it is all that those of ordinary skill in the art are obtained under the premise of creative work is not made
Other embodiment, belongs to the scope of protection of the invention.
Embodiment 1
A kind of method for being applied to formation facet in deep hole blasting, the setting of blow-up point include central charge hole 1, emptying aperture
2nd, deformation charge hole 3, cutting scallop hole 4 and emission center 5；The central charge hole 1 is located at the center of emptying aperture 2；The emptying aperture 2
It is parallel with central charge hole 1；The deformation charge hole 3 is symmetrical arranged with central charge hole 1；The cutting scallop hole 4 is two rows
Fan-shaped deep hole, trestle column are 2000mm；Cutting scallop hole 4 is two row's fanhole(s)s, positioned at the left and right sides in deformation charge hole 3；
The emission center 5 is located on two emission center points of cutting scallop hole 4；
During the explosion, firing order is followed successively by 3 → cutting of central charge hole 1 → deformation charge hole scallop hole 4；Cutting fan
Shape hole 4 is with the center of cutting to both sides successively explosion；During Cutting Blasting, central charge hole 1, deformation charge hole 3, cutting scallop hole 4
The method that detonation is segmented using disposable powder charge, region is first born by four emptying apertures 2 in explosion space, and to expand as deformation charge hole 3 negative
Load region, the cutting burden of scallop hole 4 region, ultimately form follow-up deep hole and fall the explosion scope of freedom of ore deposit.
During the ore deposit long and medium hole drilling that falls, at the position for needing cutting, deep hole is cut using the rock drilling of Simba364 chassis；
Positioned parallel technology is adopted during rock drilling, is designed into cloth hole and rock drilling by cutting deep hole；Control blasthole rock drilling precision within 1 °, hole
, within 2%, blast hole depth error control is within 1% for spacing and trestle column error control；1 a diameter of φ of central charge hole is set
100mm, depth 25m；2 blasthole diameter of emptying aperture：φ 115mm, depth 25m, blasthole number are 4 holes；Borehole spacing：600mm；Auxiliary
Powder charge hole 3 opens up 6, the external auxiliary powder charge outside the inside deformation charge hole being divided in cutting scallop hole and cutting scallop hole
Hole；Internal deformation charge hole is 2, and external auxiliary powder charge hole is 4, and deformation charge hole 3 is a diameter of：φ 100mm, depth 25m；
Internal deformation charge pitch of holes is 1800mm, and external auxiliary powder charge hole is 1200mm spacing on the outside of deep hole is cut, between inner side
Away from for 2500mm；4 aperture of cutting scallop hole is φ 100mm, bottom hole pitch 1.0m；Firing order is followed successively by central charge hole → inside
Deformation charge hole → external auxiliary powder charge hole → cutting scallop hole；Firing order blasting time section adjacent successively is 500ms；Enter
Row preliminary examination, confirms that blasthole is intact, carries out charging when reaching design requirement；Using the reverse double detonator detonating capsules of bottom hole
With igniting primer detonating technique, powder charge is hole-specifically carried out by firing order, loaded length and density reach design requirement；Blasthole aperture
Simply blocked, prevent explosive in hole from dropping；Initiation net is using two in multiple-structure interchange interconnection technique, i.e. each blasthole
Send out detonating capsule and connect different propagation of explosion detonators respectively, complete after ignition.
Operating process is as follows：
Equipment positioning → goniometry → blasthole rock drilling → blast hole projectile filling → networking explosion.
Claims (6)
1. a kind of method for being applied in deep hole blasting form facet, it is characterised in that：The setting of blow-up point includes that center fills
Medicine hole, emptying aperture, deformation charge hole, cutting scallop hole and emission center；The central charge hole position is in the center of emptying aperture；The sky
Hole is parallel with central charge hole；The deformation charge hole is symmetrical with central charge hole；Cutting scallop hole is two row's fanhole(s)s, is arranged
Spacing is 2000mm, and positioned at the left and right sides in deformation charge hole；The emission center is located at two radiation of cutting scallop hole
On central point；
During the explosion, firing order is followed successively by central charge hole → deformation charge hole → cutting scallop hole；Cutting scallop hole with
Cutting center is to both sides successively explosion；During Cutting Blasting, central charge hole, deformation charge hole, cutting scallop hole are using disposable
The method of powder charge segmentation detonation, explosion space are first born region by four emptying apertures and expand as deformation charge hole burden region, cutting
Scallop hole bears region, ultimately forms follow-up deep hole and falls the explosion scope of freedom of ore deposit.
2. as claimed in claim 1 it is a kind of be applied to deep hole blasting in form the method for facet, it is characterised in that：The center
Powder charge bore dia be φ 100mm, depth：＜ 25m.
3. as claimed in claim 1 it is a kind of be applied to deep hole blasting in form the method for facet, it is characterised in that：The emptying aperture
Blasthole diameter：φ 115-150mm, depth：＜ 25m, blasthole number are 4-6 holes；Borehole spacing：600mm-700mm.
4. as claimed in claim 1 it is a kind of be applied to deep hole blasting in form the method for facet, it is characterised in that：The auxiliary
Powder charge hole opens up number for 6, the external auxiliary dress outside the inside deformation charge hole being divided in cutting scallop hole and cutting scallop hole
Medicine hole；Internal deformation charge hole is 2, and external auxiliary powder charge hole is 4, and deformation charge bore dia is：φ 100mm, depth：＜
25m；Internal deformation charge pitch of holes is 1800-2000mm, and external auxiliary powder charge hole is 1200- spacing on the outside of scallop hole is cut
1500mm, the spacing of inner side is 2500-3000mm；
During the explosion, firing order is followed successively by central charge hole → inside deformation charge hole → external auxiliary powder charge hole → cutting
Scallop hole；Cutting scallop hole is with the center of cutting to both sides successively explosion.
5. as claimed in claim 1 it is a kind of be applied to deep hole blasting in form the method for facet, it is characterised in that：The cutting
Scallop hole aperture is φ 100mm, bottom hole pitch 1.0-1.8m.
6. as claimed in claim 1 it is a kind of be applied to deep hole blasting in form the method for facet, it is characterised in that：The detonation
Order blasting time section adjacent successively is not less than 500ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065902.8A CN104807381B (en) | 2015-02-09 | 2015-02-09 | Method for forming cutting surface in deep hole blasting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510065902.8A CN104807381B (en) | 2015-02-09 | 2015-02-09 | Method for forming cutting surface in deep hole blasting |
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| CN104807381A CN104807381A (en) | 2015-07-29 |
| CN104807381B true CN104807381B (en) | 2017-05-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436990B (en) * | 2016-05-27 | 2021-02-05 | 南京梅山冶金发展有限公司 | Compensation-free space blasting fault processing method |
| CN108413822B (en) * | 2018-04-12 | 2019-12-06 | 长沙矿山研究院有限责任公司 | Upward fan-shaped medium-length hole damping blasting method |
| CN111749693B (en) * | 2020-06-28 | 2022-05-20 | 玉溪大红山矿业有限公司 | Method for constructing and blocking deep hole in large fault section by sill pillar-free sublevel caving method |
| CN112324439A (en) * | 2020-11-16 | 2021-02-05 | 抚顺罕王傲牛矿业股份有限公司 | Mining method for inducing caving roadway roof |
| CN112683119A (en) * | 2020-12-23 | 2021-04-20 | 莱芜莱新铁矿有限责任公司 | Electronic detonator underground blasting construction method |
Citations (5)
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| CN101737050A (en) * | 2008-11-25 | 2010-06-16 | 宝钢集团上海梅山有限公司 | Deep hole arranging method in mining |
| CN102943673A (en) * | 2012-10-12 | 2013-02-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Cutting method combining deep hole cutting and small well cutting |
| 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 |
| CN103604326A (en) * | 2013-10-19 | 2014-02-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Double-emission-center cutting deep hole blasting technology |
| CN104154830A (en) * | 2014-08-08 | 2014-11-19 | 西北矿冶研究院 | Medium-length hole blasting method for underground mining |
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2015
- 2015-02-09 CN CN201510065902.8A patent/CN104807381B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737050A (en) * | 2008-11-25 | 2010-06-16 | 宝钢集团上海梅山有限公司 | Deep hole arranging method in mining |
| 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 |
| CN102943673A (en) * | 2012-10-12 | 2013-02-27 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Cutting method combining deep hole cutting and small well cutting |
| CN103604326A (en) * | 2013-10-19 | 2014-02-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Double-emission-center cutting deep hole blasting technology |
| CN104154830A (en) * | 2014-08-08 | 2014-11-19 | 西北矿冶研究院 | Medium-length hole blasting method for underground mining |
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