CN101363701A - Double-medium decoupling fracture damage blasting control method and auget - Google Patents
Double-medium decoupling fracture damage blasting control method and auget Download PDFInfo
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- CN101363701A CN101363701A CNA2008100794034A CN200810079403A CN101363701A CN 101363701 A CN101363701 A CN 101363701A CN A2008100794034 A CNA2008100794034 A CN A2008100794034A CN 200810079403 A CN200810079403 A CN 200810079403A CN 101363701 A CN101363701 A CN 101363701A
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Abstract
The invention relates to a method for controlling blasting by double-medium decoupling fracture and damage and a blasting cartridge thereof. The method adopts cylindrical explosive, detonator or primacord to explode a hole on a blasted rock body. The method is characterized in that water and air are simultaneously used in the hole to separate explosive, wherein, the water medium is aligned to the side of a free surface, while the air medium is aligned to the side of a reserved surface; the uniform distributing state of explosive energy can be changed by using the characteristics that the two media have different efficiencies of transmitting energy, thereby achieving the function of completely destroying one side and protecting the reserved surface during blasting, and forming a flat fracture surface. The blasting cartridge consists of an outer tube, an inner tube and a separating wall, wherein, the separating wall separates a cavity formed between the outer tube and the inner tube into a medium chamber for containing the water medium and a medium chamber for containing the air medium; and an explosive chamber for placing the cylindrical explosive is arranged in the inner tube. The invention has the advantages of easily operating, improving explosive power and agglomerating rate, protecting stability of wall rock, reducing harm of dust and noise, and the like, and can be widely applied to smooth blasting projects such as tunnels, side slopes, water conservancies, mining, and the like.
Description
Technical field
The invention belongs to the blasting engineering technical field, specifically a kind of utilize two media not Coupling Fracture damage principle carry out the blasting method and the device of controlled blasting section.
Background technology
Along with expanding economy, controlled blasting has obtained application more and more widely in engineerings such as railway, mine, water conservancy, building, traffic.Along with the development of modern project blasting technique, people are also more and more higher to the requirement of engineering explosion.How accurately how the generation position and the developing direction in crack during controlled blasting accurately control the formation of the plane of disruption, obtains comparatively smooth excavation face and reasonably the explosion lumpiness just causing the researchers' that get more and more concern.Especially at some special engineerings; cutting and exploitation as valuable stone material; the maintenance, the particularly raising of blast mining face lump coal rate of protection of the driving in special construction requirement, tunnel and the tunnel of special building, country rock and stability of slope be the focus noted of researchers especially.In order to address the above problem, Chinese scholars has proposed multiple Fracture Control scheme, and what have starts with from changing the borehole structure, and what have starts with from changing the powder stick shape, has all obtained certain effect.
At present, control breaking blasting method mainly contains: grooving explosion, the explosion of cumulative cartridge bag, the explosion of joint-cutting cartridge bag, split the law etc.The blast action similar process of these technology all has the effect and the purpose that is used for identical engineering project of directional fracture blasting rock.Wherein split the law can play the effect of protection country rock, but cost is higher, and charge constitution is complicated, not easy to operate.Other several controlled blasting methods all can not effectively be protected reservation face.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existing various controlled blasting methods, provide the generation lower, more easy to operate, that can control the crack of a kind of cost can effectively protect the controlled blasting method and apparatus of reserving country rock again.
The present invention solves the technical scheme that its technical problem takes:
Two media are the Coupling Fracture damage blasting control method not, adopt cylindrical explosive, detonator or primacord, and the hole of setting off firecrackers on by the rock mass of explosion, it is characterized in that: when the dress cylindrical explosive, the explosive structure adopts radially not coupling charging, both when the dress cylindrical explosive, uses the water and air two media to isolate explosive in the big gun hole simultaneously, its aqueous medium is aimed at the scope of freedom one side, and air dielectric is aimed at reservation face one side; Utilize two media to transmit the even distribution that the different characteristics of energy efficiency change explosive energy; the aqueous medium aligning scope of freedom one side is fully destroyed when explosion; and air dielectric is aimed at the reservation face one side reservation face that is effectively protected, and forms the smooth plane of disruption.
Two media are Coupling Fracture damage blasting control pipe not, it is characterized in that: be the pipe of a kind of cross section for abnormity, constituted by outer tube, interior pipe and partition wall, described partition wall is divided into the medium room that holds aqueous medium and air dielectric with the cavity that forms between outer tube and the interior pipe, and described interior Guan Zhongwei settles the explosive room of dress cylindrical explosive.
Described medium room has three, and three medium rooms are being evenly distributed on the blasting cartridge cross section, promptly is 120 ° of distributions on three partition wall blasting cartridge cross sections.
The of the present invention pair of medium not Coupling Fracture damage blasting control method and device compared with prior art, its outstanding substantive distinguishing features with significant beneficial effect is:
1, two media make explosive energy concentrate on aqueous medium one side, make aqueous medium the static pressure that is subjected to of a right side rock midpoint make a concerted effort maximum, be that each big gun hole wall splits at two big gun hole line orientation preferentiallies, be very beneficial for forming two through cracks between the borehole.
2, two media have changed the even distribution of explosive energy, because the biography that aqueous medium is good can act on and the advantage of hydraulic pressure demolition, the aqueous medium one side rock failure mechanism of rock is more abundant, and air buffer is compressed the back and detonation gas has played throwing effect to rock together, these two factors have strengthened the ability of destroying rock jointly, have been equivalent to improve the power of explosive.In field trial, burden has increased about 45%; Unit rock amount of consumption of drugs has reduced about 35%.
3, blasting cartridge is applied to the coal seam blast mining face, because aqueous medium can make explosion energy be more evenly distributed, helps the scope of freedom one side coal petrography and become piece on the one hand; On the other hand, air dielectric has been protected reservation face, so becoming the piece rate, increasing economic benefit of coal petrography can be improved by the pulverizing district that has reduced next working face and crack district.
4, utilize blasting cartridge of the present invention to carry out photoface exploision in engineering fields such as tunnel, side slope, water conservancy, mining, can form better section effect, reducing backbreaks owes the amount of digging, reduce support work, reaches belt-tightening purpose.
In a word; the characteristics of big gun hole hydraulic pressure demolition and the explosion of air decoupling charge have been merged in the present invention; and have himself characteristics and an advantage; protection effect to the control that becomes seam and country rock is fairly obvious; and improve explosive power, improve into piece rate, protection adjoining rock stability, reduce the harm of dust and noise.Can be widely used in the photoface exploision engineering fields such as tunnel, side slope, water conservancy, mining.
Description of drawings
Fig. 1 is the not sectional views of Coupling Fracture damage blasting control pipe of the two media of the present invention;
Fig. 2 is the not pictures of Coupling Fracture damage blasting control pipe of the two media of the present invention;
Fig. 3 is that the present invention tests the borehole layout drawing;
The specific embodiment
The two media of the present invention are the Coupling Fracture damage blasting control method not, adopt cylindrical explosive, detonator or primacord, and the hole of setting off firecrackers on by the rock of explosion, when the dress cylindrical explosive, the explosive structure adopts radially not coupling charging, both when the dress cylindrical explosive, uses the water and air two media to isolate explosive in the big gun hole simultaneously, its aqueous medium is aimed at the scope of freedom one side, and air dielectric is aimed at reservation face one side; Utilize two media to transmit the even distribution that the different characteristics of energy efficiency change explosive energy; the aqueous medium aligning scope of freedom one side is fully destroyed when explosion; and air dielectric is aimed at the reservation face one side reservation face that is effectively protected, and forms the smooth plane of disruption.
Illustrated in figures 1 and 2, the two media of the present invention are Coupling Fracture damage blasting control pipe not.Blasting cartridge is that a kind of cross section of being made by the PVC material is the pipe of abnormity, constituted by outer tube 1, interior pipe 2 and partition wall 3, described partition wall is divided into the medium room 4 that holds aqueous medium and air dielectric with the cavity that forms between outer tube and the interior pipe, and described interior Guan Zhongwei settles the explosive room 5 of dress cylindrical explosive.The blasting cartridge that present embodiment is enumerated is the cavity that forms between outer tube and the interior pipe to be divided into three medium rooms that hold aqueous medium and air dielectric by partition wall, three medium rooms are being evenly distributed on the blasting cartridge cross section, promptly are 120 ° of distributions on three partition wall blasting cartridge cross sections; The outer radius R=20mm of outer tube, wall thickness H＜2mm; The outer radius r=10mm of interior pipe, wall thickness h＜2mm; The wall thickness △ h＜2mm of partition wall.The medium room also can be divided into two or four, and described medium room can be even distribution on the blasting cartridge cross section, also can non-uniform Distribution.
The not Coupling Fracture damage blasting control method test of the two media of the present invention, the blasting cartridge of three medium rooms of use, three medium rooms are being evenly distributed on the blasting cartridge cross section, promptly are 120 ° of distributions on three partition wall blasting cartridge cross sections; The outer radius R=20mm of outer tube, wall thickness H＜2mm; The outer radius r=10mm of interior pipe, wall thickness h＜2mm; The wall thickness △ h＜2mm of partition wall.
The blasting cartridge of 12 1 meter blasting cartridge and 12 1.5 meters all set, spacing increases to 60cm～75cm, and the periphery hole burden increases to about 75cm, and borehole is arranged as shown in Figure 3.Owing to the operation reason of field worker, 5# and 6# borehole spacing, 6# and 7# borehole spacing have reached 1 meter.Two nation's eyes of 10 boreholes in top and the left side all adopt blasting cartridge of the present invention (the big gun hole of painted black) 3#, 4#, 8#, 9#, 10#, 11#, 12# big gun hole respectively to adorn one 1.5 meters blasting cartridge; 5#, 6#, three boreholes of 7# are respectively adorned 1 meter and 1.5 meters two blasting cartridges because of its spacing; Two 1 meter blasting cartridge is respectively adorned in 14#, 15# big gun hole.The section molding effect is more obvious after its explosion, and the amount of backbreaking reduces greatly.
Claims (3)
1, two media Coupling Fracture damage blasting control method not, adopt cylindrical explosive, detonator or primacord, and the hole of setting off firecrackers on by the rock mass of explosion, it is characterized in that: when the dress cylindrical explosive, in the big gun hole, use the water and air two media to isolate explosive simultaneously, its aqueous medium is aimed at the scope of freedom one side, and air dielectric is aimed at reservation face one side; Utilize two media to transmit the even distribution that the different characteristics of energy efficiency change explosive energy; the aqueous medium aligning scope of freedom one side is fully destroyed when explosion; and air dielectric is aimed at the reservation face one side reservation face that is effectively protected, and forms the smooth plane of disruption.
2, a kind of pair of medium Coupling Fracture damage blasting control pipe not, it is characterized in that: be the pipe of a kind of cross section for abnormity, constituted by outer tube (1), interior pipe (2) and partition wall (3), described partition wall is divided into the medium room (4) that holds aqueous medium and air dielectric with the cavity that forms between outer tube and the interior pipe, and described interior Guan Zhongwei settles the explosive room (5) of dress cylindrical explosive.
3, according to claim 2 pair of medium Coupling Fracture damage blasting control pipe not, it is characterized in that: described medium room has three, three medium rooms are being evenly distributed on the blasting cartridge cross section, promptly are 120 ° of distributions on three partition wall blasting cartridge cross sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100794034A CN101363701A (en) | 2008-09-12 | 2008-09-12 | Double-medium decoupling fracture damage blasting control method and auget |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100794034A CN101363701A (en) | 2008-09-12 | 2008-09-12 | Double-medium decoupling fracture damage blasting control method and auget |
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| CN101363701A true CN101363701A (en) | 2009-02-11 |
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| CNA2008100794034A Pending CN101363701A (en) | 2008-09-12 | 2008-09-12 | Double-medium decoupling fracture damage blasting control method and auget |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230767A (en) * | 2011-05-30 | 2011-11-02 | 中国科学技术大学 | Polyhedral energy-accumulating metal blasting fuse and using method thereof |
| CN102230766A (en) * | 2011-05-30 | 2011-11-02 | 中国科学技术大学 | Flat metal blasting fuse and lateral parallel boosting method thereof |
| CN103148748A (en) * | 2013-03-08 | 2013-06-12 | 中国矿业大学 | Pressure-adjustable expansion plastic pipe deep hole blasting control method |
| CN104880134A (en) * | 2015-06-08 | 2015-09-02 | 攀钢集团矿业有限公司 | Blasthole charging structure and brow line protection method |
| CN105571417A (en) * | 2015-12-28 | 2016-05-11 | 浙江科技学院 | Water-air combined medium non-coupled rapid explosive charging device for tunnel extra-large cross section deep-hole rock blasting fragmentation |
| CN106679520A (en) * | 2017-02-14 | 2017-05-17 | 贵州大学 | Novel deep-hole water-pressure blasting device |
| CN107024157A (en) * | 2017-05-22 | 2017-08-08 | 贵州大学 | A kind of blast charging structure and application method |
| CN108426494A (en) * | 2018-05-16 | 2018-08-21 | 厦门***工程公司 | A kind of presplit blasting blast hole projectile filling device for excavation of foundation pit |
| CN108662958A (en) * | 2018-05-16 | 2018-10-16 | 厦门***工程公司 | A kind of presplit blasting system for excavation of foundation pit |
| CN109099781A (en) * | 2018-11-08 | 2018-12-28 | 陕西沣采能源材料科技有限公司 | A kind of cumulative waterpower control explosion powder stick |
| CN109405687A (en) * | 2018-12-28 | 2019-03-01 | 钦州学院 | Underwater Cutting Seam Cartridge Blasting device and its construction method based on Uncoincided charge |
| CN110701969A (en) * | 2019-11-08 | 2020-01-17 | 中国矿业大学(北京) | Rock crushing device and crushing method |
| CN111307007A (en) * | 2020-04-10 | 2020-06-19 | 中钢集团马鞍山矿山研究总院股份有限公司 | Charging structure for inhibiting mine blasting smoke harm |
| CN112393656A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Multipoint mode gathers can blasting loaded constitution |
| CN113405419A (en) * | 2021-08-05 | 2021-09-17 | 安徽马钢矿业资源集团桃冲矿业有限公司 | Blast hole semi-continuous air spacer device, blasting structure and mounting method |
| CN113932669A (en) * | 2021-11-18 | 2022-01-14 | 西安建筑科技大学 | Blasting equipment for annular uncoupled explosive charging at water intervals in blast hole |
-
2008
- 2008-09-12 CN CNA2008100794034A patent/CN101363701A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230767A (en) * | 2011-05-30 | 2011-11-02 | 中国科学技术大学 | Polyhedral energy-accumulating metal blasting fuse and using method thereof |
| CN102230766A (en) * | 2011-05-30 | 2011-11-02 | 中国科学技术大学 | Flat metal blasting fuse and lateral parallel boosting method thereof |
| CN103148748A (en) * | 2013-03-08 | 2013-06-12 | 中国矿业大学 | Pressure-adjustable expansion plastic pipe deep hole blasting control method |
| CN104880134A (en) * | 2015-06-08 | 2015-09-02 | 攀钢集团矿业有限公司 | Blasthole charging structure and brow line protection method |
| CN104880134B (en) * | 2015-06-08 | 2017-08-04 | 攀钢集团矿业有限公司 | A kind of charge constitution of blasthole and a kind of open wiring guard method |
| CN105571417A (en) * | 2015-12-28 | 2016-05-11 | 浙江科技学院 | Water-air combined medium non-coupled rapid explosive charging device for tunnel extra-large cross section deep-hole rock blasting fragmentation |
| CN105571417B (en) * | 2015-12-28 | 2017-03-08 | 浙江科技学院 | Water air combining medium for tunnel large section deep hole blasting broken rock does not couple quick-burning charge device |
| CN106679520A (en) * | 2017-02-14 | 2017-05-17 | 贵州大学 | Novel deep-hole water-pressure blasting device |
| CN106679520B (en) * | 2017-02-14 | 2018-07-24 | 贵州大学 | A kind of novel deep hole water pressure blasting demolition set |
| CN107024157A (en) * | 2017-05-22 | 2017-08-08 | 贵州大学 | A kind of blast charging structure and application method |
| CN108426494A (en) * | 2018-05-16 | 2018-08-21 | 厦门***工程公司 | A kind of presplit blasting blast hole projectile filling device for excavation of foundation pit |
| CN108662958A (en) * | 2018-05-16 | 2018-10-16 | 厦门***工程公司 | A kind of presplit blasting system for excavation of foundation pit |
| CN108662958B (en) * | 2018-05-16 | 2020-08-04 | 厦门***工程公司 | Pre-splitting blasting system for foundation pit excavation |
| CN109099781A (en) * | 2018-11-08 | 2018-12-28 | 陕西沣采能源材料科技有限公司 | A kind of cumulative waterpower control explosion powder stick |
| CN109405687A (en) * | 2018-12-28 | 2019-03-01 | 钦州学院 | Underwater Cutting Seam Cartridge Blasting device and its construction method based on Uncoincided charge |
| CN109405687B (en) * | 2018-12-28 | 2023-06-30 | 北部湾大学 | Underwater kerf explosive charge blasting device based on uncoupled explosive charge and construction method thereof |
| CN110701969A (en) * | 2019-11-08 | 2020-01-17 | 中国矿业大学(北京) | Rock crushing device and crushing method |
| CN111307007A (en) * | 2020-04-10 | 2020-06-19 | 中钢集团马鞍山矿山研究总院股份有限公司 | Charging structure for inhibiting mine blasting smoke harm |
| CN111307007B (en) * | 2020-04-10 | 2022-03-15 | 中钢集团马鞍山矿山研究总院股份有限公司 | Charging structure for inhibiting mine blasting smoke harm |
| CN112393656A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Multipoint mode gathers can blasting loaded constitution |
| CN113405419A (en) * | 2021-08-05 | 2021-09-17 | 安徽马钢矿业资源集团桃冲矿业有限公司 | Blast hole semi-continuous air spacer device, blasting structure and mounting method |
| CN113932669A (en) * | 2021-11-18 | 2022-01-14 | 西安建筑科技大学 | Blasting equipment for annular uncoupled explosive charging at water intervals in blast hole |
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Open date: 20090211 |