AU2020101246A4 - A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method - Google Patents
A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method Download PDFInfo
- Publication number
- AU2020101246A4 AU2020101246A4 AU2020101246A AU2020101246A AU2020101246A4 AU 2020101246 A4 AU2020101246 A4 AU 2020101246A4 AU 2020101246 A AU2020101246 A AU 2020101246A AU 2020101246 A AU2020101246 A AU 2020101246A AU 2020101246 A4 AU2020101246 A4 AU 2020101246A4
- Authority
- AU
- Australia
- Prior art keywords
- gathered
- blasting
- energy
- hose
- pipe device
- 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
- 238000005422 blasting Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002360 explosive Substances 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000005474 detonation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000926 A-3 tool steel Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/02—Particular applications of blasting techniques for demolition of tall structures, e.g. chimney stacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/06—Particular applications of blasting techniques for seismic purposes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
of Description
The present invention discloses a flexible energy-gathered blasting cutting pipe device, which
comprises a hose, a corrugated energy-gathered shield, an explosive, a detonating fuse and an
igniter, the described hose is equipped with lancing, the described corrugated energy-gathered
shield is located in a position corresponding to the lancing in the hose, the explosive is located
between the hose and the corrugated energy-gathered shield, one end of the detonating fuse is
connected with the central position of the explosive, the other end of the detonating fuse is
connected with the igniter, and the described corrugated energy-gathered shield is arranged in a
semicircle. The present invention relates to the technical field of finely-controlled blasting, in
particular to a flexible energy-gathered blasting cutting pipe device composed of a flexible PVC
hose and a corrugated energy-gathered shield, which is easy to use and widely applied. It can not
only be applied in the field of energy-gathered blasting cutting in any shape, but also can be applied
in deep-hole controlled blasting. Meanwhile, the purpose of the present invention is to
simultaneously provide a method for application of flexible energy-gathered blasting cutting pipe.
Drawings of Description
3
4
Figure 4
-- 1
Figure 5
Description
Drawings of Description
3 4
Figure 4
-- 1
Figure 5
D e s crip tion
A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method
Technical Field The present invention relates to the technical field offinely-controlled blasting, in particular to a flexible energy-gathered blasting cutting pipe device and its application method.
Technical Background The energy-gathered phenomenon of explosives during blasting has been discovered since the 18th century. However, the energy-gathered phenomenon really attracted attention until the Second World War and was used by the ordnance department to create various projectile bodies with high lethality in the war. In the 1950s, the research on energy-gathered effect began in China. Since the 1980s, benefiting from the development of experimental means and computer calculation, the research on energy-gathered effect has become more and more abundant. Its application field is no longer limited to military industry, and it is more and more widely applied in the field of civil blasting engineering. At present, energy-gathered blasting technology has been extensively applied in oil exploitation, seismic exploration blasting, metal plate processing, steel structure building (structure) demolition, smooth surface and pre-split controlled blasting and other fields.
Although the energy-gathered blasting technology has been widely applied in the existing field of civil blasting engineering, but there are still some unsolved problems in use, for example, in the blasting demolition of concrete-filled steel pipe structure and steel pipe and so on, the linear energy-gathered shield doesn' t fit with such structure and is unable to achieve the purpose of accurate blasting and cutting, and the blasting method of more drilling and more loading can only be used; in the deep-hole slope blasting, the direction of the hole cannot be precisely controlled in the drilling process, so the blast hole is not straight in fact. Therefore, when using lancing blasting cartridge, PVC energy-gathered blasting and other methods, the structure of blasting cartridge is rigid, so the loading cannot be successfully carried out during the loading process. At the same time, based on the scientific, green and modern concept of development, Chinese scientists have proposed the concept of "fine blasting", namely carrying out the release of explosive energy, the medium crushing and casting and other processes through quantitative blasting design, elaborate blasting construction and meticulous blasting management to achieve the expected blasting effect and realize the control of harmful effect of blasting, finally realizing the safe, reliable, technology-advanced, green, environmental and economically reasonable blasting operation. In view of this, it is of great significance to design reasonable structure and optimize loading based on classical energy-gathered blasting theory.
Invention Summary Aiming at the existing problems in energy-gathered blasting, the present invention provides a
D e s crip tion
flexible energy-gathered blasting cutting pipe device composed of a flexible PVC hose and a corrugated energy-gathered shield, which is easy to use and widely applied. It can not only be applied in the field of energy-gathered blasting cutting in any shape, but also can be applied in deep-hole controlled blasting. Meanwhile, the purpose of the present invention is to simultaneously provide a method for application of flexible energy-gathered blasting cutting pipe.
This present invention adopts the technical scheme as follows: a flexible energy-gathered blasting cutting pipe device disclosed in the present invention comprises a hose, a corrugated energy-gathered shield, an explosive, a detonating fuse and an igniter, the described hose is equipped with lancing, the described corrugated energy-gathered shield is located in a position corresponding to the lancing in the hose, the explosive is located between the hose and the corrugated energy-gathered shield, one end of the detonating fuse is connected with the central position of the explosive, the other end of the detonating fuse is connected with the igniter, and the described corrugated energy-gathered shield is arranged in a semicircle.
The described explosive can be a common industrial explosive, or a high-energy explosive for military industry.
The described detonating fuse can be a common industrial detonating fuse, or a safety detonating fuse according to the requirements of special occasions.
Further, the described lancing is distributed symmetrically or unidirectional along the axial direction of the hose. The hose can be equipped with symmetric axis-directed lancing or unidirectional lancing according to the use of hose: hose with symmetric axis-directed lancing is selected for deep-hole smooth surface or pre-split blasting; hose with unidirectional lancing is selected for blasting cutting of building (structure).
Preferably, the described hose is 100 m in single length, which can be cut on site according to the demand during use, and the described hose is 40-100 mm in diameter.
Preferably, the described lancing is arranged spaced along the direction of the hose and is 400 mm in length, and the non-lancing length of middle space is 100 mm, so as to ensure the integrity of the hose during installation and transportation.
Preferably, the described lancing is 6-20 mm in width, which is 0.15 ~ 0.3 times the diameter of the hose. The width of the lancing is determined according to the diameter of the selected hose. The larger the diameter of the hose is, the larger the width of the corresponding lancing is.
Preferably, the semicircle angle of the described corrugated energy-gathered shield is 100 ~ 120°. The shape of the corrugated energy-gathered shield is similar to that of the drain pipe of
D e s crip tion
washing machine, except that the corrugated energy-gathered shield in the present invention is a semicircle with an angle of about 100 ~ 120°. The adoption of corrugated energy-gathered shield can ensure that the formed flexible energy-gathered blasting cutting pipe device is equipped with a flexible and deformable pipe, which is convenient for application in different occasions.
Further, the semicircle radius of the described corrugated energy-gathered shield is 10 ~ 40 mm. The radius of the shield is determined according to the diameter of the selected hose. The larger the diameter of the hose is, the larger the radius of the corresponding corrugated energy-gathered shield is.
Further, the thickness of the described corrugated energy-gathered shield is 0.1 ~ 1 mm.
Further, the described hose is made of PVC and the described corrugated energy-gathered shield is made of copper.
The present invention also discloses a method for application of flexible energy-gathered blasting cutting pipe device, which comprises an application method for demolition blasting of buildings and an application method for deep-hole blasting, and includes the following steps respectively:
The application method for demolition blasting of building (structure) includes the following steps:
(1) Determine a cutting position according to the blasting construction plan and mark it;
(2) Wrap a flexible energy-gathered blasting cutting pipe device with unidirectional lancing in the marked position and fix it, and ensure that the cutting direction is perpendicular to an object to be cut;
(3) Connect a detonating fuse with an igniter and initiate blasting to cut and break the object under the action ofjet flow after blasting;
The application method for deep-hole blasting includes the following steps:
(1) Drilling: drill blast holes by drilling machine in rock mass to be blasted according to the requirements of the blasting construction plan;
(2) Loading: load the selected energy-gathered blasting cutting pipe device with bidirectional lancing into the blast hole with its own weight and fix it;
D e s crip tion
(3) Plugging: plug the blast hole with plugging materials;
(4) Blasting: connect a detonating fuse with an igniter and initiate blasting; initial cracks are formed in the outline of rock mass under the action of jet flow after blasting, then expand along the outline under the action of detonation gas, and finally form a smooth fracture surface; and at the same time, the lancing hose plays the role of wall protection, the blast hole has high semi-eye mark rate, and the surrounding rock of blast hole wall has excellent protection effect.
The benefits obtained by using the above structure in the present invention are described as follows: the flexible energy-gathered blasting cutting pipe device in the present invention is designed reasonably in structure and can be bent at will according to the specific situation of the blasted object, thus solving the shortcoming of the traditional rigid energy-gathered blasting device which is subject to the shape of the blasted object. The present invention can also be used in deep-hole blasting to solve the problem that the rigid energy-gathered blasting device cannot be loaded into the hole smoothly because of bent hole. At the same time, the present invention closely combines the modern concept of fine blasting and classical blasting theory to rationally design loading structure, so as to achieve the safe, reliable, technology-advanced, green, environmental and economically reasonable blasting operation.
Description of Drawings Figure 1 is a structure diagram of the flexible energy-gathered blasting cutting pipe device in the invention;
Figure 2 is a partial enlargement of Part A of Figure 1.
Figure 3 is a top view of an embodiment of the flexible energy-gathered blasting cutting pipe device in the present invention;
Figure 4 is a top view of another embodiment of the flexible energy-gathered blasting cutting pipe device in the present invention;
Figure 5 is an overall structure diagram of the flexible energy-gathered blasting cutting pipe device in the present invention.
Where: 1 - hose, 2 - corrugated energy-gathered shield, 3 - explosive, 4 - detonating fuse.
Detailed Description of the Presently Preferred Embodiments The technical scheme in the patent is further described in detail in combination with the following specific embodiment. The parts of the present invention that have not been described in detail in terms of technical features or connection relations are the existing technologies adopted.
D e s crip tion
The present invention is further described in detail in conjunction with the attached figures.
As shown in Figures 1-5, a flexible energy-gathered blasting cutting pipe device disclosed in the present invention comprises a hose 1, a corrugated energy-gathered shield 2, an explosive 3, a detonating fuse 4 and an igniter, the described hose 1 is equipped with lancing, the described corrugated energy-gathered shield 2 is located in a position corresponding to the lancing in the hose 1, the explosive 3 is located between the hose 1 and the corrugated energy-gathered shield 2, one end of the detonating fuse 4 is connected with the central position of the explosive 3, the other end of the detonating fuse 4 is connected with the igniter, and the described corrugated energy-gathered shield 2 is arranged in a semicircle.
Specific embodiment: the application of the flexible energy-gathered blasting cutting pipe device in the demolition blasting of steel structure.
The blasting cutting object in this embodiment is a steel pipe with a diameter of 25 cm and a wall thickness of 2 cm, and made of A3 steel. Because the pipe wall is thick, the diameter of the hose 1 of the flexible energy-gathered blasting cutting pipe device selected is 60 mm, and the thickness of the corrugated energy-gathered shield 2 is 0.6 mm. First, mark the position to be cut on the steel pipe, then wrap the pre-produced hose 1 of the flexible energy-gathered blasting cutting pipe device on the steel pipe to be blasted with the lancing direction perpendicular to the steel pipe. Connect the detonating fuse 4 to the igniter and conduct blasting. The steel pipe is cut and disconnected to form two complete parts under the action ofjet flow after blasting.
The above description of the present invention and its embodiment is not restrictive. The presentation in the attached figures is only one of the embodiments in the present invention and does not mean the limitation to the actual structure. To sum up, if ordinary technicians in the field are inspired by the present invention and design a structure and embodiment similar to the technical scheme without creativity and without deviating from the purpose of creation in the present invention, they shall fall within the scope of protection of the present invention.
Claims (10)
1. A flexible energy-gathered blasting cutting pipe device, characterized in that the device comprises a hose, a corrugated energy-gathered shield, an explosive, a detonating fuse and an igniter, the described hose is equipped with lancing, the described corrugated energy-gathered shield is located in a position corresponding to the lancing in the hose, the explosive is located between the hose and the corrugated energy-gathered shield, one end of the detonating fuse is connected with the central position of the explosive, the other end of the detonating fuse is connected with the igniter, and the described corrugated energy-gathered shield is arranged in a semicircle.
2. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the described lancing is distributed symmetrically or unidirectional along the axial direction of the hose.
3. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the described hose is 100 m in single length and 40-100 mm in diameter.
4. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the described lancing is arranged spaced along the direction of the hose and is 400 mm in length, and the non-lancing length of middle space is 100 mm.
5. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the described lancing is 6-20 mm in width, which is 0.15 ~ 0.3 times the diameter of the hose.
6. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the semicircle angle of the described corrugated energy-gathered shield is 100 ~ 1200.
7. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the semicircle radius of the described corrugated energy-gathered shield is 10 ~ mm.
8. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the thickness of the described corrugated energy-gathered shield is 0.1 ~ 1 mm.
9. The described flexible energy-gathered blasting cutting pipe device according to claim 1 is characterized in that the described hose is made of PVC and the described corrugated energy-gathered shield is made of copper.
10. A method for application of flexible energy-gathered blasting cutting pipe device is
C la i m s
characterized in that the method comprises an application method for demolition blasting of buildings and an application method for deep-hole blasting, which includes the following steps respectively:
The application method for demolition blasting of buildings includes the following steps:
(1) Determine a cutting position according to the blasting construction plan and mark it;
(2) Wrap a flexible energy-gathered blasting cutting pipe device with unidirectional lancing in the marked position and fix it, and ensure that the cutting direction is perpendicular to an object to be cut;
(3) Connect a detonating fuse with an igniter and initiate blasting to cut and break the object under the action of jet flow after blasting;
The application method for deep-hole blasting includes the following steps:
(1) Drilling: drill blast holes by drilling machine in rock mass to be blasted according to the requirements of the blasting construction plan;
(2) Loading: load the selected energy-gathered blasting cutting pipe device with bidirectional lancing into the blast hole with its own weight and fix it;
(3) Plugging: plug the blast hole with plugging materials;
(4) Blasting: connect a detonating fuse with an igniter and initiate blasting; initial cracks are formed in the outline of rock mass under the action of jet flow after blasting, then expand along the outline under the action of detonation gas, and finally form a smooth fracture surface; and at the same time, the lancing hose plays the role of wall protection, the blast hole has high semi-eye mark rate, and the surrounding rock of blast hole wall has excellent protection effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020101246A AU2020101246A4 (en) | 2020-07-03 | 2020-07-03 | A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2020101246A AU2020101246A4 (en) | 2020-07-03 | 2020-07-03 | A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020101246A4 true AU2020101246A4 (en) | 2020-08-13 |
Family
ID=71949492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020101246A Active AU2020101246A4 (en) | 2020-07-03 | 2020-07-03 | A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2020101246A4 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880507A (en) * | 2021-02-09 | 2021-06-01 | 江西荣达***新技术开发有限公司 | Perforation explosive charging explosion method suitable for blasting demolition of middle shear wall |
| CN112880500A (en) * | 2021-01-29 | 2021-06-01 | 中交路桥北方工程有限公司 | Wall protection smooth blasting method for tunnel weak surrounding rock based on double-layer peripheral hole arrangement |
| CN113008093A (en) * | 2021-02-26 | 2021-06-22 | 重庆交通建设(集团)有限责任公司 | Directional explosive loading device suitable for energy-gathering explosive package |
| CN114440723A (en) * | 2021-11-16 | 2022-05-06 | 中国矿业大学(北京) | Gun stick and using method thereof |
| CN115218725A (en) * | 2022-08-05 | 2022-10-21 | 沈阳工业大学 | Slitting explosive package device for automatically controlling tunnel blasting energy release and blasting method |
-
2020
- 2020-07-03 AU AU2020101246A patent/AU2020101246A4/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880500A (en) * | 2021-01-29 | 2021-06-01 | 中交路桥北方工程有限公司 | Wall protection smooth blasting method for tunnel weak surrounding rock based on double-layer peripheral hole arrangement |
| CN112880500B (en) * | 2021-01-29 | 2022-03-11 | 中交路桥北方工程有限公司 | Wall protection smooth blasting method for tunnel weak surrounding rock based on double-layer peripheral hole arrangement |
| CN112880507A (en) * | 2021-02-09 | 2021-06-01 | 江西荣达***新技术开发有限公司 | Perforation explosive charging explosion method suitable for blasting demolition of middle shear wall |
| CN113008093A (en) * | 2021-02-26 | 2021-06-22 | 重庆交通建设(集团)有限责任公司 | Directional explosive loading device suitable for energy-gathering explosive package |
| CN114440723A (en) * | 2021-11-16 | 2022-05-06 | 中国矿业大学(北京) | Gun stick and using method thereof |
| CN115218725A (en) * | 2022-08-05 | 2022-10-21 | 沈阳工业大学 | Slitting explosive package device for automatically controlling tunnel blasting energy release and blasting method |
| CN115218725B (en) * | 2022-08-05 | 2024-01-23 | 沈阳工业大学 | Lancing explosive package device capable of autonomously controlling release of tunnel blasting energy and blasting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020101246A4 (en) | A Flexible Energy-Gathered Blasting Cutting Pipe Device and Its Application Method | |
| CN108759596B (en) | Flexible energy-gathered blasting pipe cutting device and using method thereof | |
| CN113383206B (en) | Blasting method using jet unit charged in blast hole | |
| CN103615941B (en) | The blasting method of modernized railway shallow-buried sector | |
| CN108643910A (en) | A method of controlling caving for coal mine stope tight roof Advance presplitting | |
| CN103195466A (en) | Directional water pressure blasting method for improving coal bed gas permeability | |
| Zhang et al. | Instantaneous expansion with a single fracture: A new directional rock-breaking technology for roof cutting | |
| CN103499255A (en) | Method for directional energy-gathered blasting of retaining wall with low damage | |
| Adhikari | Studies on flyrock at limestone quarries | |
| CN111765820A (en) | Weak disturbance directional blasting seam-making method for hard top plate | |
| CN110307762A (en) | A kind of courtyard quick well formation method based on deep hole hole by hole initiation technique | |
| CN106839909A (en) | Reduce the multidirectional collision cumulative multipoint priming method of the quick-fried foundation of deep hole step | |
| CN106767213A (en) | A kind of Roof Control blasting method of soft broken top board ore body back production | |
| CN103868419A (en) | Smooth surface blasting construction method used in tunnel excavation process in hydraulic engineering | |
| CN105443133A (en) | Underground rock cumulative charge explosion device and method for non-excavation construction | |
| CN114001605A (en) | Smooth blasting method for tunneling | |
| CN114111478B (en) | Detonating circuit combining electronic detonator and detonating cord and construction method thereof | |
| CN114963904B (en) | Tunnel blasting hole structure based on directional energy-gathering slotted holes and blasting method | |
| CN108195242B (en) | Rock blasting method | |
| CN205119959U (en) | Reduce and surpass combination big gun hole of owing to dig | |
| KR20020024172A (en) | Discrete Plane Band Dustproofing Method for Blocking Blasting Vibration | |
| CN106382120A (en) | Detonating tunneling pipe-jacking construction method | |
| CN102305058B (en) | Novel synergistic shattering perforation series charging device | |
| CN111964545A (en) | Rock roadway deep hole loosening blasting method based on axial multipoint simultaneous detonation | |
| Austin | Lined-cavity shaped charges and their use in rock and earth materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| PC | Assignment registered |
Owner name: ANHUI LEIMING EXPLOSIVES ENGINEERING CO.,LTD Free format text: FORMER OWNER(S): CHINA UNIVERSITY OF MINING AND TECHNOLOGY |