CN104897014B - A kind of blast charging structure - Google Patents
A kind of blast charging structure Download PDFInfo
- Publication number
- CN104897014B CN104897014B CN201510276657.5A CN201510276657A CN104897014B CN 104897014 B CN104897014 B CN 104897014B CN 201510276657 A CN201510276657 A CN 201510276657A CN 104897014 B CN104897014 B CN 104897014B
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- CN
- China
- Prior art keywords
- pvc pipe
- fan
- grooving
- presplit blasting
- blasthole
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- 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.)
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of blast charging structure, it includes pvc pipe（1）, pvc pipe（1）Two symmetrical disconnected groovings are offered on upper lower tube body respectively（2）；The original backwardness of prior art presplit blasting charge process is solved, labor intensive financial resources are made, operating efficiency is low.It is placed in the middle that powder charge process Chinese medicine package is often difficult to realize not coupling for presplit blasting powder charge requirement, and directly contacted with blasthole wall, the high-pressure shocking wave of generation makes pre- broken face heavy damage, is likely to result in the destruction of reserved working face, it is impossible to the problems such as realizing the design effect of presplit blasting.
Description
Technical field
The invention belongs to blasting technique, more particularly to a kind of blast charging structure.
Background technology
Presplit blasting is special controlled blasting, i.e. a row intensive blasthole relatively is arranged along design profile face,
And the blasthole detonation in prior to excavation area, the insertion precracking for having one fixed width is initially formed, precracking can be played
The effect of the rock mass of excavation area and reserved area is separated, so that the shake that greatly reduction country rock is subject to when blasthole is detonated in excavation area
Dynamic and destruction, keeps the primary stability of rock medium as far as possible, and leaves the more complete whole smooth excavation of half hole wall peace
Face.Can presplit blasting wide variety of key be in production reasonable determination charge constitution.To realize design effect, often adopt
With Uncoincided charge or low dose of powder charge.But at present, domestic presplit blasting, photoface exploision and buffer shooting is mainly using small
Diameter powder stick and primacord are banded in the loading method on bamboo chip, and the linear charging density of design is realized by changing powder stick spacing,
The original backwardness of charge process, makes labor intensive financial resources, and operating efficiency is low.Powder charge process Chinese medicine package is often difficult to realize
Not coupling for presplit blasting powder charge requirement is placed in the middle, and is directly contacted with blasthole wall, and the high-pressure shocking wave of generation makes pre- broken face serious
Destruction, is likely to result in the destruction of reserved working face, it is impossible to realize the design effect of presplit blasting.
The content of the invention
The technical problem to be solved in the present invention：A kind of blast charging structure is provided, to solve prior art presplit blasting dress
The original backwardness of medicine technique, makes labor intensive financial resources, and operating efficiency is low.Powder charge process Chinese medicine package is often difficult to realize pre-
Split not coupling for blast charging requirement placed in the middle, and directly contacted with blasthole wall, the high-pressure shocking wave of generation makes pre- broken face seriously break
It is bad, it is likely to result in the destruction of reserved working face, it is impossible to the problems such as realizing the design effect of presplit blasting.
Technical solution of the present invention：
A kind of blast charging structure, it includes pvc pipe, and offering two respectively on lower tube body on pvc pipe does not connect symmetrically
Grooving.
The width of grooving is the 15-25% of pvc pipe diameter.
Offered on the body of pvc pipe Yu grooving junction and fan-shaped knot placed in the middle is fixed with fixed card slot, fixed card slot
Structure.
The size of fan-shaped center configuration is agreed with blasthole size.
Beneficial effects of the present invention：
The present invention offers two symmetrical disconnected groovings respectively on pvc pipe on lower tube body, in adjacent holes line
Upper formation troughs for collecting energy, forms similar clip structure on the premise of energy-gathering jetting is ensured, is easy to the placement of pack, and be easily controlled
Powder charge interval；The high-pressure jet device to hole formed in cumulative shooting flow, blast process along grooving direction can be produced in the grooving direction of body
Wall medium produces slabbing action, helps to form smooth, smooth reserved face, improves surrounding rock stability, the present invention is using in PVC
Offered on body and fan-shaped center configuration is fixed with fixed card slot, fixed card slot, utilize fan-shaped center configuration outer fan
Structure may insure that fan-shaped center configuration is placed into after neck and not slide, not offset under phase separation of hanging down, it is ensured that center configuration is certainly
Body stability does not shift, and realizes that the pack of presplit blasting Uncoincided charge is required between two parties, reduces blasting process shock wave pair
The destruction of protection face；The original backwardness of prior art presplit blasting charge process is solved, labor intensive financial resources are made,
Operating efficiency is low.It is placed in the middle that powder charge process Chinese medicine package is often difficult to realize not coupling for presplit blasting powder charge requirement, and and blasthole
Wall is directly contacted, and the high-pressure shocking wave of generation makes pre- broken face heavy damage, is likely to result in the destruction of reserved working face, it is impossible to realize
The problems such as design effect of presplit blasting.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structure schematic top plan view of the present invention.
Embodiment
A kind of blast charging structure, it includes pvc pipe 1, and offering two respectively on lower tube body on pvc pipe 1 does not connect symmetrically
Logical grooving 2, the width of grooving 2 is the 15-25% of the diameter of pvc pipe 1, preferably 20%, the diameter of pvc pipe 1 is slightly less than powder stick diameter,
The symmetrical grooving in the two ends of pvc pipe 1 is to pack formation clamping action, and breaking into two with one's hands can facilitate pack to load, the self-strength of pvc pipe 1 and interior
Pressure can ensure that pack is stable.
Offered on the body of pvc pipe 1 Yu the junction of grooving 2 in fixed card slot 3, fixed card slot 3 and be fixed with fan-shaped residence
Middle structure 4, size and the blasthole size of fan-shaped center configuration 4 are agreed with, and fan-shaped center configuration 4 is by outer fan structure and rectangle
Laminated structure is constituted, and wherein rectangle laminated structure is laid in powder charge is caught in the fixed card slot located vertical with grooving of pvc pipe 1
In 3, sector structure is corresponding with blasthole wall to agree with, it is ensured that body is stable to be located at blasthole center, realizes Uncoincided charge.
The rectangular segment of the fan-shaped center configuration 4 of the present invention enters after body laterally makes it vertical with tube wall between two parties, profit
With rectangle laminated structure and the characteristic of outer fan structural attachments size gradation, fan-shaped center configuration 4 can be fixed well
In neck 3.Break body one end into two with one's hands, by design interval press-in powder stick 5, powder stick 5 is blocked by body own resilience, will not destroyed
Powder stick, it is ensured that powder stick is not fallen off, powder stick riding position, adjustment powder charge interval can be controlled by grooving on body.
, directly will be simple to operate without tying up or other operations with powder stick body feeding blasthole after being completed, it is real
The Uncoincided charge of existing presplit blasting design and spaced loading.
Claims (2)
1. a kind of blast charging structure, it includes pvc pipe（1）, it is characterised in that：Pvc pipe（1）Opened respectively on upper lower tube body two ends
Provided with two symmetrical disconnected groovings（2）, in pvc pipe（1）With grooving（2）Fixed card slot is offered on the body of junction
（3）, fixed card slot（3）Inside it is fixed with fan-shaped center configuration（4）, fan-shaped center configuration（4）Size agree with blasthole size；Fan
Shape center configuration（4）By outer fan structure and rectangle sheet structure composition, wherein rectangle laminated structure is pacified in powder charge
Put and be caught in pvc pipe（1）The fixed card slot located vertical with grooving（3）Interior, outer fan structure is corresponding with blasthole wall to agree with；Sector is occupied
Middle structure（4）Rectangle laminated structure enter placed in the middle laterally vertical with tube wall after body.
2. a kind of blast charging structure according to claim 1, it is characterised in that：Grooving（2）Width be pvc pipe（1）
The 15-25% of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276657.5A CN104897014B (en) | 2015-05-27 | 2015-05-27 | A kind of blast charging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510276657.5A CN104897014B (en) | 2015-05-27 | 2015-05-27 | A kind of blast charging structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104897014A CN104897014A (en) | 2015-09-09 |
| CN104897014B true CN104897014B (en) | 2017-08-01 |
Family
ID=54029830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510276657.5A Expired - Fee Related CN104897014B (en) | 2015-05-27 | 2015-05-27 | A kind of blast charging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104897014B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387777B (en) * | 2015-10-30 | 2017-09-05 | 山东大学 | A kind of photoface exploision spaced loading joint-cutting pipe |
| CN106245651A (en) * | 2016-07-26 | 2016-12-21 | 中铁建大桥工程局集团第五工程有限公司 | Mountain area national highway vertical high slope explosion butt construction |
| CN115388723B (en) * | 2021-05-21 | 2024-06-14 | 核工业南京建设集团有限公司 | Large-section cave blasting structure and blasting method |
| CN113154977A (en) * | 2021-05-21 | 2021-07-23 | 核工业南京建设集团有限公司 | Bidirectional symmetrical kerf charging structure and method for smooth blasting |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101033932A (en) * | 2007-03-05 | 2007-09-12 | 中国水利水电第八工程局 | Method of energy cumulative presplitting and smoothsurface blasting and special device therof |
| CN201034478Y (en) * | 2007-05-09 | 2008-03-12 | 王树理 | Line-dot jointed multidirectional concentrating tension shaping blasting device |
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| CN2373776Y (en) * | 1998-07-31 | 2000-04-12 | 王东恩 | Energy-collecting blasting pipe capable of precision directional blasting and directional regulation rod |
| CN100455978C (en) * | 2006-09-06 | 2009-01-28 | 何满潮 | Bidirectional energy gathering tension shaping blasting cartridge |
| CN101672613B (en) * | 2009-09-28 | 2012-09-05 | 中国建筑第五工程局有限公司 | Vibration-reducing blasting construction method of air spring |
| CN102109304A (en) * | 2010-11-30 | 2011-06-29 | 中国矿业大学(北京) | Directional rock blasting crack propagation method and device |
| CN202083295U (en) * | 2011-04-25 | 2011-12-21 | 山西潞安环保能源开发股份有限公司 | Directional fracture blasting device for aqueous medium coupling slit pipe |
| CN202274827U (en) * | 2011-07-05 | 2012-06-13 | 中铁隧道集团有限公司 | Brine coupling kerf pipe loading structure applied to smooth blasting |
| CN102519323B (en) * | 2011-12-06 | 2014-07-02 | 兰州大学 | Pre-splitting blasting method for joint-cutting pipe |
| CN202630821U (en) * | 2012-05-08 | 2012-12-26 | 中交第一公路工程局有限公司 | Directional energy collection fracture blasting device of lancing pipe |
| CN202582379U (en) * | 2012-05-17 | 2012-12-05 | 山东科技大学 | Cumulative blasting joint-cutting pipe |
| CN204301617U (en) * | 2014-09-30 | 2015-04-29 | 长沙理工大学 | A kind of centering gun tube device being applicable to tunnel perimeter hole CUMULATIVE BLASTING |
| CN204678996U (en) * | 2015-05-27 | 2015-09-30 | 贵州大学 | A kind of blast charging structure |
-
2015
- 2015-05-27 CN CN201510276657.5A patent/CN104897014B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033932A (en) * | 2007-03-05 | 2007-09-12 | 中国水利水电第八工程局 | Method of energy cumulative presplitting and smoothsurface blasting and special device therof |
| CN201034478Y (en) * | 2007-05-09 | 2008-03-12 | 王树理 | Line-dot jointed multidirectional concentrating tension shaping blasting device |
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| Publication number | Publication date |
|---|---|
| CN104897014A (en) | 2015-09-09 |
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