CN114111478B - Detonating circuit combining electronic detonator and detonating cord and construction method thereof - Google Patents
Detonating circuit combining electronic detonator and detonating cord and construction method thereof Download PDFInfo
- Publication number
- CN114111478B CN114111478B CN202010875285.9A CN202010875285A CN114111478B CN 114111478 B CN114111478 B CN 114111478B CN 202010875285 A CN202010875285 A CN 202010875285A CN 114111478 B CN114111478 B CN 114111478B
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- Prior art keywords
- detonating
- electronic detonator
- detonating cord
- circuit
- hole
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- 238000010276 construction Methods 0.000 title claims abstract description 11
- 238000005422 blasting Methods 0.000 claims abstract description 22
- 239000002360 explosive Substances 0.000 claims abstract description 18
- 230000000977 initiatory effect Effects 0.000 claims abstract description 14
- 230000037452 priming Effects 0.000 claims abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 230000005641 tunneling Effects 0.000 abstract description 5
- 238000009430 construction management Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005474 detonation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction 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
-
- 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
- F42D1/055—Electric circuits for blasting specially adapted for firing multiple charges with a time delay
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses an initiation circuit combining an electronic detonator and a detonating cord and a construction method thereof, wherein the initiation circuit comprises the electronic detonator, the detonating cord and a buckle; the construction method comprises the following steps: (1) drilling holes on the face according to the hole network parameters of the blastholes; (2) loading explosive and electronic detonator in the holes of the bottom plate, and loading explosive and detonating cord in other blast holes; (3) connecting the secondary detonating cords in other blastholes detonated simultaneously by using a main detonating cord according to the detonating cord; (4) connecting the explosive in the detonation blast hole with the electronic detonator with set time delay; (5) all the electronic detonators are connected to the main line in parallel; (6) and after the priming circuit is detected to be qualified, and after the blasting warning is finished, the blaster detonates in a safe place. The priming circuit can save a large number of electronic detonators, thereby reducing the tunnel blasting cost. In addition, the detonating circuit is relatively simple, can effectively reduce network connection time, is beneficial to on-site construction management, improves tunnel blasting tunneling progress, and has obvious economic and social benefits.
Description
Technical Field
The invention relates to the technical field of engineering blasting, in particular to an initiation circuit combining an electronic detonator and a detonating cord and a construction method thereof.
Background
The traceability of the electronic detonator and the explosion inhibition management of time and space areas can be realized, so that the management of civil explosive articles by public security authorities can be changed into in-process management after the management of the civil explosive articles, the management and control of the safety risk at the tail end of the civil explosive articles are facilitated, the social loss caused by the detonator is avoided, the management and the management are utilized by lawless persons, and great hidden danger is brought to public safety. In addition, the electronic detonator has strong anti-interference capability, adopts the electronic control module to carry out delay setting, can be modified by on-line setting, has the on-line detection function, can ensure reliable connection of a network, effectively solves the problem of gun loss, and can ensure accurate implementation of a blasting scheme by accurate delay. Therefore, electronic detonators are widely popularized and used in China, and detonators of other types are phased out.
The tunnel blasting tunneling generally adopts small-diameter blastholes, the number of blastholes in the face of the tunnel is up to hundreds, and the cost of the tunnel blasting is increased sharply due to the high price of the electronic detonator. In addition, the detonating circuit of tunnel blasting is complex, requires high operation level of field personnel, is unfavorable for field construction management, and time is consumed for setting time delay of hundreds of electronic detonators on site, so that tunneling progress is seriously affected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an initiation circuit combining an electronic detonator and a detonating cord and a construction method thereof. In addition, the detonating circuit is relatively simple, network connection time can be effectively reduced, site construction management is facilitated, and tunnel blasting tunneling progress is improved.
The technical scheme for solving the technical problems is as follows:
a detonating circuit construction method for combining an electronic detonator and a detonating cord is characterized in that: the method comprises the following steps: (1) drilling holes on the face according to the hole network parameters of the blastholes; (2) loading explosive and electronic detonator in the holes of the bottom plate, and loading explosive and detonating cord in other blast holes; (3) connecting the secondary detonating cords in other blastholes detonated simultaneously by using a main detonating cord according to the detonating cord; (4) selecting one blast hole from other blast holes detonated simultaneously as a detonating blast hole, and connecting explosive in the detonating blast hole with an electronic detonator with set delay; (5) all the electronic detonators are connected to the main line in parallel; (6) after the priming circuit is detected to be qualified, and after the blasting warning is finished, blasting personnel detonate in a safe place;
the detonating circuit comprises an electronic detonator, a detonating cord and a buckle;
the hole network parameters of the blast holes and the detonating circuit need to ensure that the distance between the main detonating cords is not less than 40cm;
and the time interval of the delay of the electronic detonator is not more than 100ms.
The invention is characterized in that the buckle can be a plastic pipe with the length of not less than 15cm and is used for connecting a blasting fuse with a main blasting fuse in a blast hole or connecting the blasting fuse with a detonator.
The invention is characterized in that the contact length of the detonating cord in the blast hole and the explosive is not less than 60cm.
The invention is characterized in that the electronic detonator can be arranged at the end head of the main detonating cord, but needs to be protected.
The invention is characterized in that the delay of the electronic detonator in the bottom plate hole is increased from the center to the two sides in sequence, but the delay is required to be larger than the delay of the corresponding undercut hole of the upper bottom.
The invention is characterized in that the connecting lines of the electronic detonators are distributed towards two sides of the arch springing along the outline of the face.
The invention relates to an initiation circuit construction method combining an electronic detonator and an initiation cable, which comprises the following working principles: the main detonating cord is used for connecting the detonating cords in the detonating holes at the same time, then the detonating cords are detonated through an electronic detonator, the purpose of greatly reducing the number of the electronic detonators is achieved, and finally the influence of the detonating cords is eliminated through a series of technical measures, so that the detonating cord used by the electronic detonator and the detonating cord can be reliably detonated, and blind blasting is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1. the detonating circuit construction method for combining the electronic detonator and the detonating cord provided by the invention avoids using a large number of electronic detonators, thereby reducing the tunnel blasting cost.
2. The detonating circuit for combining the electronic detonator and the detonating cord is relatively simple, can effectively reduce network connection time, is beneficial to on-site construction management, improves tunnel blasting tunneling progress, and has obvious economic and social benefits.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a method of constructing an initiation circuit for use with an electronic detonator and detonating cord of the present invention.
Fig. 2 is a schematic diagram of an embodiment of a bottom plate hole charge structure of the present invention.
FIG. 3 is a schematic view of an embodiment of a non-floor hole charge configuration of the present invention.
Fig. 4 is a schematic diagram of an embodiment of the detonation gun hole charging structure of the invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but embodiments of the present invention are not limited thereto.
Referring to fig. 1, 2, 3 and 4, the method for constructing an initiating circuit by combining an electronic detonator and a detonating cord is characterized in that: the method comprises the following steps: (1) drilling holes on the face 1 according to the hole network parameters of the blastholes; (2) explosive 3 and an electronic detonator 4 are arranged in the bottom plate hole 2, and explosive 3 and a detonating cord 5 are arranged in other blast holes 9; (3) the main detonating cord 6 is used for connecting the detonating cords 5 in other blastholes 9 detonated simultaneously according to the detonating circuit; (4) selecting one blast hole from other blast holes 9 detonated simultaneously as a detonating blast hole 10, and connecting the explosive 3 in the detonating blast hole 10 with the electronic detonator 4 with set delay; (5) all the electronic detonators 4 are connected in parallel to the main line 7; (6) and after the priming circuit is detected to be qualified, and after the blasting warning is finished, the blaster detonates in a safe place.
The detonating circuit comprises an electronic detonator 4, a supporting detonating cord 5, a main detonating cord 6 and a buckle 8.
The hole network parameters of the blast holes and the detonating circuit need to ensure that the distance between the main detonating cord 6 is not less than 40cm.
The time interval of the delay of the electronic detonator 4 does not exceed 100ms.
Referring to fig. 3, the buckle 8 may be a plastic pipe with a length not less than 15cm, and is used for connecting the main detonating cord 6 with the main detonating cord 5 in the blast hole or connecting the main detonating cord 6 with the electronic detonator 4.
Referring to fig. 3 and 4, the contact length of the blasting fuse 5 and the explosive 3 in the blast hole is not less than 60cm.
Referring to fig. 4, the electronic detonator 4 may also be disposed at the end of the main detonating cord 6.
Referring to fig. 1, the delay of the electronic detonator 4 in the bottom plate hole 2 increases from the center to the two sides, but must be greater than the delay of the corresponding undercut hole of the upper plate.
Referring to fig. 1, the connecting lines 7 of the electronic detonator 4 are arranged along the contour line of the face 1 towards two sides of the arch springing.
Referring to fig. 1, 2, 3 and 4, the working principle of the detonating circuit construction method of the invention combining the electronic detonator and the detonating cord is further described below with reference to the accompanying drawings: the branch detonating cords 5 in the detonating holes are connected by the main detonating cord 6, then the main detonating cord 6 is detonated by the electronic detonator 4, the purpose of greatly reducing the number of the electronic detonators is achieved, and finally the influence of the main detonating cord 6 is eliminated by a series of technical measures, so that the detonating circuit combined by the electronic detonator 4 and the main detonating cord 6 can be reliably detonated, and blind blasting is avoided.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made therein without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A detonating circuit construction method for combining an electronic detonator and a detonating cord is characterized in that: the method comprises the following steps: (1) drilling holes on the face according to the hole network parameters of the blastholes; (2) loading explosive and electronic detonator in the holes of the bottom plate, and loading explosive and detonating cord in other blast holes; (3) connecting the secondary detonating cords in other blastholes detonated simultaneously by using a main detonating cord according to the detonating cord; (4) selecting one blast hole from other blast holes detonated simultaneously as a detonating blast hole, and connecting explosive in the detonating blast hole with an electronic detonator with set delay; (5) all the electronic detonators are connected to the main line in parallel; (6) after the priming circuit is detected to be qualified, and after the blasting warning is finished, blasting personnel detonate in a safe place;
the detonating circuit comprises an electronic detonator, a detonating cord and a buckle;
the hole network parameters of the blast holes and the detonating circuit need to ensure that the distance between the main detonating cords is not less than 40cm;
and the time interval of the delay of the electronic detonator is not more than 100ms.
2. The method for constructing an initiating circuit for combining an electronic detonator and a detonating cord according to claim 1, wherein the fastener is a plastic tube with a length of not less than 15cm, and is used for connecting the detonating cord in a blast hole with a main detonating cord or connecting the detonating cord with the detonator.
3. The method for constructing an initiating circuit for combining an electronic detonator and an detonating cord according to claim 1, wherein the contact length of the detonating cord in the blast hole and the explosive is not less than 60cm.
4. The method for constructing an initiating circuit for use with an electronic detonator and detonating cord according to claim 1, wherein the electronic detonator is also provided with a main detonating cord tip, but needs protection.
5. The method for constructing an initiating circuit for combining an electronic detonator and a detonating cord according to claim 1, wherein the delay of the electronic detonator in the bottom plate hole is increased from the center to the two sides in sequence, but must be larger than the delay of the corresponding undercut hole in the upper bottom.
6. The method for constructing an initiating circuit for combining an electronic detonator and an initiating cable according to claim 1, wherein connecting wires of the electronic detonator are arranged along the outline of the face towards two sides of the arch springing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875285.9A CN114111478B (en) | 2020-08-27 | 2020-08-27 | Detonating circuit combining electronic detonator and detonating cord and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010875285.9A CN114111478B (en) | 2020-08-27 | 2020-08-27 | Detonating circuit combining electronic detonator and detonating cord and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114111478A CN114111478A (en) | 2022-03-01 |
| CN114111478B true CN114111478B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010875285.9A Active CN114111478B (en) | 2020-08-27 | 2020-08-27 | Detonating circuit combining electronic detonator and detonating cord and construction method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114111478B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355783B (en) * | 2022-09-21 | 2023-06-20 | 中钢集团武汉安全环保研究院有限公司 | Tunnel tunneling delay detonating circuit with digital electronic detonator and detonating cord fused |
| CN115585713B (en) * | 2022-09-21 | 2023-07-04 | 中钢集团武汉安全环保研究院有限公司 | Digital electronic detonator and detonating cord fused shaft tunneling delay detonating circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494574A (en) * | 2011-12-07 | 2012-06-13 | 北京交通大学 | Combined blasting method of tunneling electronic detonator and detonator with shock-conducting tube |
| CN102494573A (en) * | 2011-11-29 | 2012-06-13 | 北京交通大学 | Tunnel electronic detonator mounting, connecting and detonating method |
| CN102506622A (en) * | 2011-11-02 | 2012-06-20 | 中铁隧道集团有限公司 | Full-face blasting vibration control construction method for tunnel electronic millisecond electric detonator |
| CN209745134U (en) * | 2018-11-09 | 2019-12-06 | 北方爆破科技有限公司 | mixed priming circuit system |
-
2020
- 2020-08-27 CN CN202010875285.9A patent/CN114111478B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506622A (en) * | 2011-11-02 | 2012-06-20 | 中铁隧道集团有限公司 | Full-face blasting vibration control construction method for tunnel electronic millisecond electric detonator |
| CN102494573A (en) * | 2011-11-29 | 2012-06-13 | 北京交通大学 | Tunnel electronic detonator mounting, connecting and detonating method |
| CN102494574A (en) * | 2011-12-07 | 2012-06-13 | 北京交通大学 | Combined blasting method of tunneling electronic detonator and detonator with shock-conducting tube |
| CN209745134U (en) * | 2018-11-09 | 2019-12-06 | 北方爆破科技有限公司 | mixed priming circuit system |
Non-Patent Citations (2)
| Title |
|---|
| 汪献强.数码电子雷管与导爆管毫秒雷管组合法爆破技术在城区隧道中的应用.科技资讯.2014,(第undefined期),第53-54页. * |
| 薛里 ; 孟海利 ; .电子-导爆管雷管混合起爆网路在隧道爆破中的应用.铁道建筑.2016,(第03期),第70-74页. * |
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| CN114111478A (en) | 2022-03-01 |
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