CN2929645Y - Rock oriented break blasting device - Google Patents
Rock oriented break blasting device Download PDFInfo
- Publication number
- CN2929645Y CN2929645Y CN 200620074520 CN200620074520U CN2929645Y CN 2929645 Y CN2929645 Y CN 2929645Y CN 200620074520 CN200620074520 CN 200620074520 CN 200620074520 U CN200620074520 U CN 200620074520U CN 2929645 Y CN2929645 Y CN 2929645Y
- Authority
- CN
- China
- Prior art keywords
- tube
- rock
- shaped
- crackles
- energy collecting
- 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.)
- Expired - Fee Related
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 21
- 239000011435 rock Substances 0.000 title abstract description 14
- 231100000252 nontoxic Toxicity 0.000 claims description 4
- 230000003000 nontoxic effect Effects 0.000 claims description 4
- 229910052571 earthenware Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 5
- 206010011376 Crepitations Diseases 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 230000000669 biting effect Effects 0.000 abstract 1
- 238000005474 detonation Methods 0.000 description 5
- 239000002360 explosive Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The utility model is a rock directional splitting blasting device, which comprises a convex tube equipped of an asymmetric V shaped or arc shaped on an inner wall, pressed cartridges closely matching with the convex inner wall are equipped inside the tube, a cartridge roller is pressed to form an asymmetric V shaped energy collecting concave, the length of the tube is a little longer then that of a special shaped cartridge, when exploding, the energy collecting biting effect makes pre crackles on holed walls along the energy collecting concave, and the pre crackles are spread quickly towards outside and pierces into an open seam with the crackles produced by the near canon, which makes the rock form a sliding wall after explosion, thereby increasing the forming quality, decreasing the blasting damage of the around rocks, decreasing the hole number and lowering the labor intensity with a wide practicality.
Description
Technical field
The utility model relates to a kind of borehole directional fracture blasting device, is particularly useful for the rock breaking controlled blasting, also is applicable to concrete breaking controlled blasting.
Background technology
Traditional photoface exploision and presplit blasting are the nearer relatively big gun holes of distance drilled on the excavation outline line, control the explosive payload in each big gun hole, detonate after powder charge simultaneously in the big gun hole, make the detonation of explosive just produce through crack on the line of big gun hole.But because quick-fried living crack is very easily along rock mass initial fissure, joint development, so the expansion in quick-fried living crack has very big randomness and uncertainty, rift direction is difficult to be well controlled, cause rock mass to backbreak easily and to owe the amount of digging big, blasting efficiency is not high, problems such as half hole mark rate is low, and Forming Quality is poor, and wall rock loosening is serious.Not only influence speed of application, increased support work amount and material consumption, and can reduce the integrality and the stability of rock mass greatly.In addition, drilling hole amount is many, and the blasted material consumption is big, has also increased labour intensity and construction cost, has reduced efficiency of construction.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of simple in structure, the borehole directional fracture blasting device easy to operate, that blasting efficiency is high, result of use is good.
Technical scheme: a kind of borehole directional fracture blasting device of the utility model, it comprises that an inwall is provided with the sleeve pipe of a pair of symmetrical V-arrangement or arc convex, be provided with in the sleeve pipe with convex inner walls and closely cooperate and extruded cartridge bag, the length of sleeve pipe is greater than the length of cartridge bag; Sleeve pipe can be nontoxic stereoplasm tube plastic tube, also metal tube, glass tube or earthenware.
Beneficial effect: a kind of borehole directional fracture blasting device of the utility model, employing is provided with a pair of symmetrical V-arrangement or arc convex by inwall sleeve pipe with its tight cartridge bag of cooperating of extruding mutually, the cartridge bag formation sockets for collecting energy that is squeezed, in blasting process, this device converges the formation jet along sockets for collecting energy direction produce power, and rock is carried out the penetration cutting, is formed with the directed crack of expansion advantage rapidly, thereby improved fracture propagation length 15%～25%, reduced drilling hole amount and expense.The expansion in directed crack has suppressed the expansion of other direction crackles, and half hole mark rate is increased, and the rock mass Forming Quality is good, and stability improves, and the supporting expense reduces.Compare with traditional blasting method, reaching under the situation of same demolition effect, this device can reduce explosive specific charge 10%.Effectively alleviate labour intensity, improved operating efficiency.It is simple in structure, and is easy to operate, and installation rate is fast, time saving and energy saving, the blasting efficiency height is saved blasted material consumption, the once detonation dose is few, can reduce concussion of blasting, noise, air-shock wave, slungshot and to the damage of surrounding rock body, have practicality widely.
Description of drawings
Fig. 1 is the utility model borehole directional fracture blasting device cross-section structure.
Among the figure: 1-projection, 2-sleeve pipe, 3-cartridge bag, 4-sockets for collecting energy, 5-big gun hole.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
A kind of borehole directional fracture blasting device of the utility model, the powder stick inwall axis direction of packing into is had in the non-toxic plastic pipe 2 of symmetrical V-arrangement projection 1, powder stick is squeezed and forms the V-arrangement sockets for collecting energy 4 of symmetry, this device is packed in the boring on tunnel, tunnel or open-air rock mass and the concrete excavation outline line, the sockets for collecting energy 4 face direction that connects with the heart towards big gun hole 5, the distance between big gun hole and the big gun hole is 1.5～2.0 times.After the explosion, the detonation product at sockets for collecting energy 4 places is in the direction set of its axis of symmetry, pool the very high jet of speed and pressure, this high speed and high pressure jet directly affacts on the hole wall, make corresponding to forming the advantage crack on big gun hole 5 hole walls of sockets for collecting energy 4 directions, then detonation gas pours in the crack rapidly, promotes fracture propagation, forms the smooth section of the face that connects with the heart along big gun hole 5.Simultaneously, because the inhibition of 5 stress field superpositions in big gun hole and non-toxic plastic pipe, the crack propagation at random on other directions of big gun hole is effectively suppressed.During explosive charge, explosion energy produces along sockets for collecting energy 4 directions and converges, and rock is also cracked in advance by penetration, and the crackle that sets out with adjacent big gun hole under detonation gas drives runs through subsequently, forms smooth scar.
Claims (2)
1. borehole directional fracture blasting device, it is characterized in that: it comprises that an inwall is provided with the sleeve pipe (2) of a pair of symmetrical V-arrangement or arc convex (1), be provided with in the sleeve pipe (2) with projection (1) inwall and closely cooperate and extruded cartridge bag (3), the length of sleeve pipe (2) is greater than the length of cartridge bag (3).
2, borehole directional fracture blasting device according to claim 1 is characterized in that: sleeve pipe (2) can be nontoxic stereoplasm tube plastic tube, also metal tube, glass tube or earthenware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074520 CN2929645Y (en) | 2006-06-27 | 2006-06-27 | Rock oriented break blasting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074520 CN2929645Y (en) | 2006-06-27 | 2006-06-27 | Rock oriented break blasting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929645Y true CN2929645Y (en) | 2007-08-01 |
Family
ID=38308027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620074520 Expired - Fee Related CN2929645Y (en) | 2006-06-27 | 2006-06-27 | Rock oriented break blasting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929645Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545747B (en) * | 2009-05-03 | 2012-10-10 | 张志呈 | Charging structure for directional pressure relief vibration isolation blasting |
| CN101726223B (en) * | 2009-10-12 | 2013-11-20 | 中国矿业大学 | Device and method for directional fracture of rocks |
| CN103774660A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Grouting anchoring tubular type anchor rod for circular shaped charge blasting hole |
| CN111794748A (en) * | 2020-07-13 | 2020-10-20 | 大同煤矿集团有限责任公司 | Method for cutting hard top plate by composite blasting |
| CN112393654A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Two-way energy-gathering blasting charge structure of joint-cutting pipe |
-
2006
- 2006-06-27 CN CN 200620074520 patent/CN2929645Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545747B (en) * | 2009-05-03 | 2012-10-10 | 张志呈 | Charging structure for directional pressure relief vibration isolation blasting |
| CN101726223B (en) * | 2009-10-12 | 2013-11-20 | 中国矿业大学 | Device and method for directional fracture of rocks |
| CN103774660A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Grouting anchoring tubular type anchor rod for circular shaped charge blasting hole |
| CN111794748A (en) * | 2020-07-13 | 2020-10-20 | 大同煤矿集团有限责任公司 | Method for cutting hard top plate by composite blasting |
| CN111794748B (en) * | 2020-07-13 | 2021-12-31 | 晋能控股煤业集团有限公司 | Method for cutting hard top plate by composite blasting |
| CN112393654A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Two-way energy-gathering blasting charge structure of joint-cutting pipe |
| CN112393654B (en) * | 2020-11-11 | 2022-05-17 | 中国人民解放军陆军工程大学 | Two-way energy-gathering blasting charge structure of joint-cutting pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 |