CN114111478A - 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
- CN114111478A CN114111478A CN202010875285.9A CN202010875285A CN114111478A CN 114111478 A CN114111478 A CN 114111478A CN 202010875285 A CN202010875285 A CN 202010875285A CN 114111478 A CN114111478 A CN 114111478A
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- Prior art keywords
- detonating
- electronic detonator
- network
- detonating cord
- blast
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- 238000010276 construction Methods 0.000 title abstract description 10
- 238000005422 blasting Methods 0.000 claims abstract description 22
- 239000002360 explosive Substances 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000005641 tunneling Effects 0.000 abstract description 5
- 238000009430 construction management Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
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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
- F42D1/055—Electric circuits for blasting specially adapted for firing multiple charges with a time delay
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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
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
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- 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 a detonating network for combining an electronic detonator and a detonating cord and a construction method thereof, wherein the detonating network comprises the electronic detonator, the detonating cord and a buckle; the construction method comprises the following steps: drilling holes on a tunnel face according to hole pattern parameters of blast holes; secondly, filling explosives and electronic detonators in the bottom plate holes, and filling explosives and detonating cords in other blast holes; thirdly, connecting branch detonating cords in other blast holes detonated simultaneously by using a main detonating cord according to the detonating network; fourthly, connecting the explosive in the detonating blast hole with the electronic detonator with the delay; connecting all the electronic detonators to the main line in parallel; sixthly, after the detonating network is detected to be qualified and the blasting warning is finished, the blasting person detonates in a safe place. The detonating network can save a large amount of electronic detonators, thereby reducing the tunnel blasting cost. In addition, the detonating network is relatively simple, can effectively reduce the network connection time, is beneficial to on-site construction management, improves the tunnel blasting tunneling progress, and has obvious economic benefit and social benefit.
Description
Technical Field
The invention relates to the technical field of engineering blasting, in particular to a blasting circuit combining an electronic detonator and a detonating cord and a construction method thereof.
Background
The traceability of the electronic detonator and the explosion prohibition management of time and space areas can be realized, so that the management of civil explosive articles by public security organs is changed into in-service management after being subjected to post-inspection, the management and the control of the safety risk of the tail ends of the civil explosive articles are facilitated, the social loss of the detonator is avoided, the detonator is utilized by lawbreakers, and great hidden dangers are brought to public safety. In addition, the electronic detonator has strong anti-interference capability, adopts the electronic control module to carry out delay setting and can be set and modified on line, the online detection function can ensure that the connection of the network is reliable, the problem of shot missing is effectively solved, and the accurate delay can ensure the accurate implementation of the blasting scheme. Therefore, electronic detonators are widely popularized and used in China, and other types of detonators are gradually eliminated.
The tunnel blasting tunneling generally adopts small-diameter blast holes, the number of the blast holes on the tunnel face is up to hundreds, and the cost of the tunnel blasting is sharply increased due to the high price of the electronic detonator. In addition, the blasting circuit of tunnel blasting is complex, requires high operation level of field personnel, is not beneficial to field construction management, and the delay of setting hundreds of electronic detonators on the field needs to consume time, thus seriously affecting the tunneling progress.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a detonating network combining an electronic detonator and a detonating cord and a construction method thereof. In addition, the detonating network is relatively simple, can effectively reduce the network connection time, is beneficial to the field construction management and improves the tunnel blasting tunneling progress.
The technical scheme for solving the technical problems is as follows:
a method for constructing a detonating network by combining an electronic detonator and a detonating fuse is characterized in that: the method comprises the following steps: drilling holes on a tunnel face according to hole pattern parameters of blast holes; secondly, filling explosives and electronic detonators in the bottom plate holes, and filling explosives and detonating cords in other blast holes; thirdly, connecting branch detonating cords in other blast holes detonated simultaneously by using a main detonating cord according to the detonating network; selecting one blast hole from other blast holes which are detonated simultaneously as a detonating blast hole, and connecting the explosive in the detonating blast hole with an electronic detonator which is provided with time delay; connecting all the electronic detonators to the main line in parallel; sixthly, after the detonating network is detected to be qualified and the blasting warning is finished, the blasting person detonates in a safe place;
the detonating network comprises an electronic detonator, a detonating fuse and a fastener;
the distance between the hole pattern parameters of the blast hole and the detonating circuit is not less than 40 cm;
the time interval of the time delay of the electronic detonator is not more than 100 ms.
One preferable scheme of the invention is characterized in that the fastener can be a plastic pipe, the length of the plastic pipe is not less than 15cm, and the plastic pipe is used for connecting a branch detonating cord and a main detonating cord or connecting the detonating cord and a detonator in a blast hole.
One preferable scheme of the invention is characterized in that the contact length of the detonating cord and the explosive in the blast hole is not less than 60 cm.
A preferred embodiment of the invention is characterised in that the electronic detonator can also be placed at the leading detonating cord end, but needs to be protected.
A preferable scheme of the invention is characterized in that the time delay of the electronic detonator in the bottom plate hole increases from the center to two sides in sequence, but must be larger than the time delay of the cut hole corresponding to the upper hole bottom.
The invention is characterized in that the connecting wire of the electronic detonator is arranged towards two sides of the arch springing along the outline of the tunnel face.
The working principle of the detonation network construction method for the electronic detonator and the detonating fuse combined use of the invention is as follows: the branch detonating cords in the simultaneous detonating blast holes are connected by the main detonating cord and then detonated by a pair of electronic detonators, so that the purpose of greatly reducing the number of the electronic detonators is achieved, and finally, the influence of the detonating cords is eliminated by a series of technical measures, so that a detonating network combining the electronic detonators and the detonating cords can reliably detonate, and the occurrence of blind shots is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1. the construction method of the detonating network combining the electronic detonator and the detonating fuse provided by the invention avoids using a large number of electronic detonators, thereby reducing the tunnel blasting cost.
2. The detonation network combining the electronic detonator and the detonating cord provided by the invention is relatively simple, can effectively reduce the network connection time, is beneficial to field construction management, improves the tunnel blasting tunneling progress, and has remarkable economic and social benefits.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the construction method of the detonating circuit combining the electronic detonator and the detonating cord of the invention.
Fig. 2 is a schematic diagram of a specific embodiment of the bottom plate hole charging structure of the present invention.
Fig. 3 is a schematic diagram of a non-sole plate hole charge configuration of the present invention.
Fig. 4 is a schematic view of an embodiment of the detonating blasthole charging arrangement of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
Referring to fig. 1, 2, 3 and 4, the invention relates to a method for constructing a detonating circuit by combining an electronic detonator and a detonating cord, which is characterized in that: the method comprises the following steps: drilling a hole on a tunnel face 1 according to hole pattern parameters of blast holes; secondly, filling explosives 3 and electronic detonators 4 into the bottom plate holes 2, and filling the explosives 3 and detonating cords 5 into other blast holes 9; thirdly, connecting the branch detonating cords 5 in other blast holes 9 detonated simultaneously by using the main detonating cord 6 according to the detonating network; selecting one blast hole from other blast holes 9 which are 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 the set time delay; connecting all the electronic detonators 4 to the main line 7 in parallel; sixthly, after the detonating network is detected to be qualified and the blasting warning is finished, the blasting person detonates in a safe place.
The detonating network comprises an electronic detonator 4, a branch detonating cord 5, a main detonating cord 6 and a buckle 8.
The hole pattern parameters of the blast hole and the detonating circuit are required to ensure that the distance between the main detonating cord 6 is not less than 40 cm.
The time interval of the time delay of the electronic detonator 4 is not more than 100 ms.
Referring to fig. 3, the fastener 8 may be a plastic pipe, the length of which is not less than 15cm, and is used for connecting the secondary detonating cord 5 and the primary detonating cord 6 in the blast hole or connecting the primary detonating cord 6 and the electronic detonator 4.
Referring to fig. 3 and 4, the contact length of the detonating cord 5 and the explosive 3 in the blast hole is not less than 60 cm.
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 detonators 4 in the bottom plate holes 2 increases from the center to two sides in sequence, but must be larger than the delay of the cut holes corresponding to the bottom of the upper hole.
Referring to fig. 1, the connecting wires 7 of the electronic detonators 4 are arranged along the contour line of the tunnel face 1 towards two sides of the arch springing.
Referring to fig. 1, 2, 3 and 4, the working principle of the blasting circuit construction method for combining the electronic detonator and the blasting fuse of the present invention is further described with reference to the accompanying drawings: the branch detonating cords 5 in the simultaneous detonating blast holes are connected by the main detonating cord 6, then the branch detonating cords are detonated by the electronic detonator 4, so that 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 a detonating network combining the electronic detonator 4 and the main detonating cord 6 can reliably detonate, and the occurrence of blind shots is avoided.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (6)
1. A method for constructing a detonating network by combining an electronic detonator and a detonating fuse is characterized in that: the method comprises the following steps: drilling holes on a tunnel face according to hole pattern parameters of blast holes; secondly, filling explosives and electronic detonators in the bottom plate holes, and filling explosives and detonating cords in other blast holes; thirdly, connecting branch detonating cords in other blast holes detonated simultaneously by using a main detonating cord according to the detonating network; selecting one blast hole from other blast holes which are detonated simultaneously as a detonating blast hole, and connecting the explosive in the detonating blast hole with an electronic detonator which is provided with time delay; connecting all the electronic detonators to the main line in parallel; sixthly, after the detonating network is detected to be qualified and the blasting warning is finished, the blasting person detonates in a safe place;
the detonating network comprises an electronic detonator, a detonating fuse and a fastener;
the distance between the hole pattern parameters of the blast hole and the detonating circuit is not less than 40 cm;
the time interval of the time delay of the electronic detonator is not more than 100 ms.
2. The method for constructing the detonating cord used together with the electronic detonator and the detonating cord as claimed in claim 1, wherein said fastener is a plastic tube with a length of not less than 15cm, and is used for the connection between the detonating cord and the main detonating cord or the detonating cord and the detonator in the blast hole.
3. The method for constructing the detonating cord used in combination with the electronic detonator and the detonating cord as claimed in claim 1, wherein the contact length of the detonating cord and the explosive in the blast hole is not less than 60 cm.
4. The method for constructing the detonating circuit of the electronic detonator combined with the detonating cord of claim 1, wherein the electronic detonator can also be provided with a leading detonating cord end, but needs to be protected.
5. The method for constructing the detonating cord of the electronic detonator and the detonating cord combination according to claim 1, wherein the delay time of the electronic detonator in the bottom hole increases from the center to both sides in sequence, but must be larger than that of the cut hole corresponding to the bottom of the upper hole.
6. The method for constructing an initiation network by combining an electronic detonator and a detonating cord according to claim 1, wherein the connecting wire of the electronic detonator is laid along the contour line of the tunnel face to both sides of the round leg.
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 true CN114111478A (en) | 2022-03-01 |
| CN114111478B CN114111478B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010875285.9A Active CN114111478B (en) | 2020-08-27 | 2020-08-27 | Detonating circuit combining electronic detonator and detonating cord and construction method thereof |
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| CN (1) | CN114111478B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355783A (en) * | 2022-09-21 | 2022-11-18 | 中钢集团武汉安全环保研究院有限公司 | Digital electronic detonator and detonating cord fused roadway excavation delay detonating network |
| CN115585713A (en) * | 2022-09-21 | 2023-01-10 | 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 delayed detonation network |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| 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" * |
| 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" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355783A (en) * | 2022-09-21 | 2022-11-18 | 中钢集团武汉安全环保研究院有限公司 | Digital electronic detonator and detonating cord fused roadway excavation delay detonating network |
| CN115585713A (en) * | 2022-09-21 | 2023-01-10 | 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 delayed detonation network |
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| Publication number | Publication date |
|---|---|
| CN114111478B (en) | 2023-10-27 |
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