CN111256553A - Blasting duplex network connection method - Google Patents
Blasting duplex network connection method Download PDFInfo
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- CN111256553A CN111256553A CN202010238959.4A CN202010238959A CN111256553A CN 111256553 A CN111256553 A CN 111256553A CN 202010238959 A CN202010238959 A CN 202010238959A CN 111256553 A CN111256553 A CN 111256553A
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- blasting
- detonators
- detonator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/045—Arrangements for electric ignition
- F42D1/05—Electric circuits for blasting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/08—Wrecking of buildings
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses a blasting duplex network connection method, which comprises the following steps: averagely dividing a region to be blasted into a plurality of sub-blasting regions; arranging a plurality of groups of detonators for detonation in the inner layer of the detonation region of each sub-blasting region, wherein each group of detonators comprises an electronic detonator and a detonating tube detonator, and the detonation region occupies 3/5-4/5 of the corresponding sub-blasting region; initiating by a detonator of a detonating tube at the starting point of the detonating area; the initiated detonating tube detonator excites the electronic detonator at the starting point to explode; and after the starting point electronic detonator is blasted, the other groups of detonators are sequentially blasted. According to the blasting compound network connection method provided by the invention, each group of detonators comprises an electronic detonator and a detonating tube detonator, the connection of the detonating network of the electronic detonator is simple, only a buckle needs to be clamped on a connecting wire, and the whole network adopts a parallel connection mode, so that the operation is simple; the network mode that only the detonating tube detonator is used in the traditional blasting mode is changed, and the composite network mode is adopted, so that the control error is small, and the operation is simple.
Description
Technical Field
The invention relates to the technical field of building blasting demolition, in particular to a blasting duplex network connection method.
Background
In cities, blasting demolition of high and large buildings (structures) often requires safe and reliable primary blasting of thousands of detonators, and an electric blasting circuit, a detonating tube detonator blasting circuit and an electronic blasting circuit respectively have advantages, disadvantages and applicable conditions. 1. In terms of network design requirements, a large-scale electric detonator priming circuit requires that each electric detonator can obtain enough current, and strict requirements are provided for construction organization arrangement of network connection, shunt voltage division of the network and the like; the detonating network of the detonator with the detonating tube does not have the requirements of network shunt, partial pressure and detonating energy design, but the error is increased along with the increase of the nominal segment number of the detonator with the detonating tube, the delay time of the detonator with the detonating tube with the segment number of 15 is 880ms, the error reaches +/-110 ms, and the aim of accurately controlling the blasting cannot be achieved. 2. In terms of network connection construction organization, the design requirement of large-scale electric detonators and detonating tube detonator priming circuits is high, so that the requirement on the arrangement of the network connection construction organization is high. 3. In view of the safety and reliability of the network, the electric detonating network has the defects that safety accidents are easy to happen mainly under the electromagnetic interference of various environments, the requirement on a detonating power supply is high, the uncertainty is large, but an instrument can be used for detecting an electric detonator and the network; a non-electric detonator priming circuit has no effective detection means so far.
In the prior art, a chinese patent (CN107607007A) discloses a method for connecting a directional blasting demolition block oblique line blasting circuit, wherein a building plane to be blasted is divided into a plurality of grids according to the horizontal and vertical directions, the building width direction is divided into 2 areas, every 2-3 rows of upright columns in the length direction are divided into one area, a first row area of a first row area is blasted first, a first row area of a second row area and a second row area of the first row area are the same oblique line area, a second row area of the second row area and a third row area of the first row area are the same oblique line area, and blasting caps and explosives in holes are loaded into blast holes according to the principle of block oblique line arrangement of the areas, so as to form a complete blasting circuit. According to the technical scheme, the detonator is used for blasting in a reasonable network layout, but the defects that a plurality of sections of detonator with the detonator with.
Disclosure of Invention
An object of the present invention is to provide a method for blasting multiple network connections, which solves at least some of the drawbacks of the prior art.
A further object of the present invention is to provide a blasting duplex network connection method with small control error and simple operation.
Another further object of the present invention is to provide a blasting multiple network connection method with good blasting stability.
Particularly, the invention provides a blasting duplex network connection method, which comprises the following steps:
averagely dividing a region to be blasted into a plurality of sub-blasting regions;
arranging a plurality of groups of detonators for detonation in the inner layer of the detonation region of each sub-blasting region, wherein each group of detonators comprises an electronic detonator and a detonating tube detonator, and the detonation region occupies 3/5-4/5 of the corresponding sub-blasting region;
initiating by a detonator of a detonating tube at the starting point of the detonating area;
the initiated detonating tube detonator excites the electronic detonator at the starting point to explode;
and after the starting point electronic detonator is blasted, the other groups of detonators are sequentially blasted.
Preferably, the electronic detonators in each group of detonators are connected in parallel and connected with a special initiator for initiation;
the detonating tube detonators in each group of detonators are connected in a 1-section relay manner.
Preferably, 2-5-segment and half-second delay detonating tube detonators are adopted on the outer layer of the detonating area of the sub-blasting area.
Preferably, the detonating tube detonators in the two oppositely arranged sub-blasting areas are arranged in parallel;
the detonator of the detonating tube in each sub-blasting area is arranged in series.
Preferably, two symmetrical electronic detonators in the two oppositely arranged sub-blasting areas are connected in parallel;
the electronic detonators in the two oppositely arranged sub-blasting areas form a closed network.
Compared with the blasting compound network connection method in the prior art, the blasting compound network connection method provided by the invention has the following beneficial effects:
according to the blasting compound network connection method provided by the invention, each group of detonators comprises an electronic detonator and a detonating tube detonator, the electronic detonators are different from the traditional electric detonators and detonating tube detonators, the delay time of the electronic detonators is controlled by a digital chip, the time can be set arbitrarily and is small in error change when the nominal delay is increased; the electronic detonator priming circuit is simple in connection, only the buckle needs to be clamped on the connecting wire, and the whole circuit is connected in parallel, so that the operation is simple; the network mode that only the detonating tube detonator is used in the traditional blasting mode is changed, and the composite network mode is adopted, so that the control error is small, and the operation is simple.
Furthermore, 2-5 sections of half-second delay detonating tube detonators are adopted in the outer layer (namely in the hole) of the detonating area of the blasting area, the detonating tubes in the hole are bundled and clustered by the 1-generation electronic detonators and the 1-generation detonating tube detonators outside the hole, a complex blasting network connection mode is adopted, an electronic blasting network is adopted, the influence of peripheral stray electricity is avoided, whether each generating electronic detonator and the whole network are normal or not can be detected on line, and the safety and the reliability of the whole network can be realized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Figure 1 is a schematic diagram of a blasting duplex network connection according to one embodiment of the invention;
in the figure, 10, an electronic detonator; 20. a nonel detonator; 30. a special detonator; 40. an electric detonator.
Detailed Description
The present invention will be further described with reference to the following examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a blasting duplex network connection according to the present invention. The invention provides a blasting duplex network connection method, which specifically comprises the following steps:
firstly, a region to be blasted is averagely divided into a plurality of sub-blasting regions.
Specifically, the area to be blasted is divided into a plurality of sub-blasting areas on average according to factors such as the large area of the area to be blasted, the height of a building and the density of the building, and in a specific embodiment, as shown in fig. 1, the area to be blasted is divided into four sub-blasting areas, i.e., a row a, a row B, a row C and a row D. In general, the central positions of the four sub-blasting areas of the A, B, C and D rows correspond to load-bearing walls or load-bearing columns.
And secondly, arranging a plurality of groups of detonators in the inner layer of the detonation area of each sub-detonation area for detonation.
Specifically, in four sub-blasting areas of the rows A, B, C and D, a plurality of groups of detonator detonations are arranged in the inner layer (namely in the hole). Each group of detonators comprises an electronic detonator 10 and a nonel detonator 20 (namely grid in figure 1 schematically represents the electronic detonator 10, and gray schematically represents the nonel detonator 20), the electronic detonator 10 is different from the traditional electric detonators and nonel detonators, the delay time of the electronic detonator 10 is controlled by a digital chip, the time can be set arbitrarily and the error change is small when the nominal delay time is increased; the connection of the priming circuit of the electronic detonator 10 is simple, only the buckle needs to be clamped on the connecting wire, and the whole circuit adopts a parallel connection mode, so that the operation is simple; the network mode that only the detonator with the detonating tube 20 is used in the traditional blasting mode is changed, and the composite network mode is adopted, so that the control error is small, and the operation is simple.
The electronic detonators 10 in each group of detonators are connected in parallel and connected with a special initiator 30 for initiation; two symmetrical electronic detonators 10 in the two oppositely arranged sub-blasting areas are connected in parallel, please refer to fig. 1, the electronic detonators 10 in the sub-blasting areas of the row a and the row B are symmetrically arranged; the electronic detonators 10 in the two oppositely arranged sub-blasting areas form a closed network, and the electronic detonators 10 in the sub-blasting areas of the rows A and B form a closed network (shown by solid lines in figure 1).
The detonating tube detonators 20 in each group of detonators are connected in a 1-section relay manner, and the detonating tube detonators 20 in the two oppositely arranged sub-blasting areas are arranged in parallel; the detonator 20 in each sub-blast area is arranged in series; the detonator 20 in each sub-blast area forms a closed network (shown in phantom in fig. 1) with the electric detonator 40, and the electric detonator 40 causes the detonator 20 to detonate. The whole blasting duplex network has good stability.
In a third step, initiation is effected by a detonator 20 at the beginning of the initiation zone.
Specifically, in a blasting duplex network, a detonator 20 is finally led out to be initiated at the beginning of the initiation region.
And fourthly, the initiated detonating tube detonator 20 excites the starting point electronic detonator 10 to explode.
Specifically, after a detonator 20 is detonated, the electronic detonator 10 at the starting point is activated to explode.
And fifthly, initiating the blasting of the other groups of detonators in sequence after the starting electronic detonator 10 is blasted.
Specifically, for example, in a plurality of groups of detonators in the row a and the row B sub-blasting areas, the electronic detonators 10 are blasted in parallel sequentially, the detonating tube detonators 20 are blasted in series sequentially, and the electronic detonators 10 and the detonating tube detonators 20 are arranged at each blasting point simultaneously, so that the blasting force is generated at each blasting point without loss, and the impact force is generated on a blasting building.
Furthermore, the detonation area occupies 3/5-4/5 of the corresponding ground blasting area, and as the blasting points connected by the compound network are arranged in the detonation area, after a large part of the whole building is blasted, the center of gravity of the building is shifted, and then the building collapses under the action of gravity, so that the aim of blasting demolition is fulfilled.
In other embodiments, 2-5 sections of half-second delay detonating tube detonators 20 are adopted in the outer layer (namely in holes) of the detonating area of the blasting area, the 1-generation electronic detonators 10 and the 1-generation detonating tube detonators 20 outside the holes are bundled and clustered, a blasting compound network connection mode is adopted, an electronic blasting network is adopted, the influence of peripheral stray electricity is avoided, whether each generating electronic detonator 10 and the whole network are normal can be detected on line, and the safety and the reliability of the whole network can be realized.
According to the blasting multiplex network connection method provided by the invention, each group of detonators comprises an electronic detonator 10 and a detonating tube detonator 20, the electronic detonator 10 is different from the traditional electronic detonators and detonating tube detonators 20, the delay time of the electronic detonator 10 is controlled by a digital chip, the time can be set arbitrarily and manually, and the error change is very small when the nominal delay is increased; the connection of the priming circuit of the electronic detonator 10 is simple, only the buckle needs to be clamped on the connecting wire, and the whole circuit adopts a parallel connection mode, so that the operation is simple; the network mode that only the detonator with the detonating tube 20 is used in the traditional blasting mode is changed, and the composite network mode is adopted, so that the control error is small, and the operation is simple.
Furthermore, 2-5 sections of half-second delay detonating tube detonators (not shown in the figure) are adopted in the outer layer (namely in the hole) of the detonating area of the blasting area, the 1-generation electronic detonators 10 and the 1-generation detonating tube detonators 20 outside the hole are bundled and clustered, a blasting compound network connection mode is adopted, an electronic blasting network is adopted, the influence of peripheral stray electricity is avoided, whether each generating electronic detonator 10 and the whole network are normal can be detected on line, and the safety and the reliability of the whole network can be realized.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (5)
1. A method of blasting duplex network connection, the method comprising the steps of:
averagely dividing a region to be blasted into a plurality of sub-blasting regions;
arranging a plurality of groups of detonators for detonation in the inner layer of the detonation region of each sub-blasting region, wherein each group of detonators comprises an electronic detonator and a detonating tube detonator, and the detonation region occupies 3/5-4/5 of the corresponding sub-blasting region;
initiating by a detonator at the beginning of the initiation area;
the initiated detonating tube detonator excites the starting point electronic detonator to explode;
and starting the electronic detonator, and then sequentially initiating the other groups of detonators to blast.
2. A method of blasting duplex network connection according to claim 1, wherein:
the electronic detonators in each group of detonators are connected in parallel and connected into a special detonator for detonation;
the detonating tube detonators in each group of detonators are connected in a 1-section relay manner.
3. A method of blasting duplex network connection according to claim 1, wherein: and 2-5 sections of half-second delay detonating tube detonators are adopted on the outer layer of the detonating area of the sub-blasting area.
4. A method of blasting duplex network connection according to claim 1, wherein:
the detonating tube detonators in the two oppositely arranged sub-blasting areas are arranged in parallel;
the detonating tube detonators in each sub-blasting region are arranged in series.
5. A method of blasting duplex network connection according to claim 1, wherein:
two symmetrical electronic detonators in the two oppositely arranged sub-blasting areas are connected in parallel;
the electronic detonators in the two oppositely arranged sub-blasting areas form a closed network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010238959.4A CN111256553A (en) | 2020-03-30 | 2020-03-30 | Blasting duplex network connection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010238959.4A CN111256553A (en) | 2020-03-30 | 2020-03-30 | Blasting duplex network connection method |
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| CN111256553A true CN111256553A (en) | 2020-06-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747645A (en) * | 2021-01-11 | 2021-05-04 | 中国华冶科工集团有限公司 | Medium-deep hole detonation network connecting device and method thereof |
| CN112857158A (en) * | 2020-12-31 | 2021-05-28 | 中国华冶科工集团有限公司 | Deep hole initiation device and initiation method |
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| KR20040031846A (en) * | 2002-10-04 | 2004-04-14 | 배상훈 | Vibration-controlled safe blasting system and method using detonating fuses |
| KR20060021701A (en) * | 2004-09-03 | 2006-03-08 | 지에스건설 주식회사 | Blasting method of electronic detonator and non-electric detonator mixes |
| CN104111008A (en) * | 2014-06-19 | 2014-10-22 | Sk建设株式会社 | Explosion system and method using electronic detonator and non-electronic detonator combination mode |
| CN207066255U (en) * | 2017-07-07 | 2018-03-02 | 山东唐口煤业有限公司 | A kind of coal seam Deephole pre-splitting blasting charge constitution |
| CN109115061A (en) * | 2018-09-01 | 2019-01-01 | 信息产业部电子综合勘察研究院 | A kind of initiation control method reducing blasting vibration |
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2020
- 2020-03-30 CN CN202010238959.4A patent/CN111256553A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040031846A (en) * | 2002-10-04 | 2004-04-14 | 배상훈 | Vibration-controlled safe blasting system and method using detonating fuses |
| KR20060021701A (en) * | 2004-09-03 | 2006-03-08 | 지에스건설 주식회사 | Blasting method of electronic detonator and non-electric detonator mixes |
| CN104111008A (en) * | 2014-06-19 | 2014-10-22 | Sk建设株式会社 | Explosion system and method using electronic detonator and non-electronic detonator combination mode |
| CN207066255U (en) * | 2017-07-07 | 2018-03-02 | 山东唐口煤业有限公司 | A kind of coal seam Deephole pre-splitting blasting charge constitution |
| CN109115061A (en) * | 2018-09-01 | 2019-01-01 | 信息产业部电子综合勘察研究院 | A kind of initiation control method reducing blasting vibration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857158A (en) * | 2020-12-31 | 2021-05-28 | 中国华冶科工集团有限公司 | Deep hole initiation device and initiation method |
| CN112747645A (en) * | 2021-01-11 | 2021-05-04 | 中国华冶科工集团有限公司 | Medium-deep hole detonation network connecting device and method thereof |
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Application publication date: 20200609 |