CN110388856A - A kind of smooth blasting method of tunnel piercing - Google Patents
A kind of smooth blasting method of tunnel piercing Download PDFInfo
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- CN110388856A CN110388856A CN201910807990.2A CN201910807990A CN110388856A CN 110388856 A CN110388856 A CN 110388856A CN 201910807990 A CN201910807990 A CN 201910807990A CN 110388856 A CN110388856 A CN 110388856A
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- China
- Prior art keywords
- powder stick
- electric detonator
- digital electric
- arc panel
- photoface exploision
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- 238000005422 blasting Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000011435 rock Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims description 163
- 239000002360 explosive Substances 0.000 claims description 97
- 235000020004 porter Nutrition 0.000 claims description 26
- 239000003999 initiator Substances 0.000 claims description 14
- 230000001186 cumulative effect Effects 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000003814 drug Substances 0.000 claims description 6
- 229940079593 drug Drugs 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000000977 initiatory effect Effects 0.000 description 15
- 238000005474 detonation Methods 0.000 description 7
- 238000004880 explosion Methods 0.000 description 4
- 239000013065 commercial product Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
-
- 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
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The present invention relates to a kind of smooth blasting methods of tunnel piercing, belong to smooth Surface Blasting Technology field.The present invention is directed to positioned at the big across shallow tunnel of down town; for protection path country rock and the maximum vibration ill-effect for reducing the photoface exploision that volleys; photoface exploision hole is uniformly opened up on tunnel rock; the Uncoincided charge device of photoface exploision is placed into photoface exploision hole, smooth surface hole-specifically accurate short delaying blasting is realized using digital electric detonator.Shift to an earlier date the extension time in providing holes to digital electric detonator, when carrying out hole-specifically accurate short delayed ignition, pass through the time difference, change the edge stress distribution at blasthole edge, so that the stress of blasthole is concentrated, so that crack is able to extension, perforation in blasthole line direction, compared with the photoface exploision that volleys, vibration can be effectively reduced.The blasting method not only ensure that the effect of photoface exploision, but also the blasting vibration effectively during control photoface exploision.
Description
Technical field
The present invention relates to a kind of smooth blasting methods of tunnel piercing, belong to smooth Surface Blasting Technology field.
Background technique
Engineering explosion technology, as there has also been great changes for the development of national economy.By constantly practicing and applying, product
Experience abundant is tired out.During the construction of underground engineering and mining, it is directed to solid rock, using blasting
It is more commonly used method.
Photoface exploision is mainly used for underground engineering and tunnel excavation, can effectively improve the flatness on tunnel surface, and crack is few,
Endangering, stone is few, and with small vibration, the safety and surrounding rock stability constructed in cave also greatly improve.Photoface exploision generally need to be using dedicated fried
Medicine, higher cost.Often because dose is excessive, violence concentrate the problems such as to country rock cause disturbance destroy, reduce adjoining rock stability
Property.Good photoface exploision is obtained as a result, the explosion of the charge constitution selected and use design is vital, therefore is ground
The smooth Surface Blasting Technology for sending out tunnel piercing a kind of, which is applied to photoface exploision, becomes technical problem urgently to be solved.
Summary of the invention
The present invention is for the problems such as existing Smooth Blasting Effects are poor, the vibration ill-effect for the photoface exploision that volleys is big, invention
A kind of smooth blasting method of tunnel piercing.The present invention passes through the default extension time of setting digital electric detonator, using number
Code electric detonator hole-specifically accurate short delayed ignition, is answered in advance so that energy caused by the explosive first to detonate allows adjacent blasthole to be in
Power state, when the explosive charge of rear detonation, the stress wave superimposition that two groups of explosives generate, to produce good blast action
" coupling " of power；Not only it can guarantee the demolition effect of smooth surface but also effectively controlled the blasting vibration during photoface exploision.
The extension time that detonator in hole need to be set in advance to digital electric detonator, when carrying out hole-specifically accurate short delayed ignition
When, by the time difference, the edge stress distribution at blasthole edge is changed, so that the stress of blasthole is concentrated, so that crack exists
Blasthole line direction is able to extension, perforation, breaks with the smooth surface that volleys quick-fried compared to effectively reducing vibration again.
The present invention be solve its technical problem and the technical solution adopted is that:
A kind of smooth blasting method of tunnel piercing, uniformly opens up photoface exploision hole, not by photoface exploision on tunnel rock
Coupling charging device is placed into photoface exploision hole, is realized that the smooth surface of tunnel piercing is hole-specifically accurately short using digital electric detonator and is prolonged
When explosion.
The spacing in the photoface exploision hole is 8 ~ 12 times of blast hole aperture, the extension time of digital electric detonator is 9 ~
12ms。
A kind of structure of the Uncoincided charge device of the photoface exploision is denoted as structure A: the Uncoincided charge of photoface exploision
Device includes powder stick fixed arc panel III 6, Explosive roll I 5, primacord I 4, digital electric detonator III 7, and Explosive roll I 5 is fixed
On the fixed arc panel III 6 of powder stick, primacord I 4 is sequentially connected Explosive roll I 5 for setting, and digital electric detonator III 7 is arranged in medicine
Roll up the end of fixed arc panel III 6 and orifice end of the digital electric detonator III 7 close to photoface exploision hole, the filling of photoface exploision aperture
Stemming 8, the payment to a porter 9 of digital electric detonator III 7 pass through stemming 8 and pass through conducting wire external connected electronic trigger.
Further, the coefficient of decoupling charge of the Explosive roll I 5 is 1.8 ~ 2.3；The fixed arc panel III 6 of powder stick
Close to the orifice end in photoface exploision hole, the 1/3 ~ 2/5 of the fixed arc panel III 6 of powder stick is bottom, the fixed arc panel III 6 of powder stick on top
The powder charge distance of bottom is d1, and the 1/3 ~ 2/5 of the fixed arc panel III 6 of powder stick is middle part, the dress at fixed III 6 middle part of arc panel of powder stick
Medicine distance is d2, and the 1/3 ~ 1/5 of the fixed arc panel III 6 of powder stick is top, and the powder charge distance at fixed III 6 top of arc panel of powder stick is
D3,3cm≤d1 < d2 < d3≤5cm.
The Uncoincided charge device of a kind of smooth blasting method of tunnel piercing, photoface exploision uses structure A, specific steps
It is as follows:
(1) gap distance >=3cm Explosive roll is chosen；
(2) the fixed arc panel III of powder stick that Explosive roll and photoface exploision hole length are adapted is chosen, Explosive roll I is bound solid
Fixed setting is on the fixed arc panel III of powder stick, and it is at regular intervals to guarantee that adjacent Explosive roll I has, and coefficient of decoupling charge is
1.8~2.3；Primacord I is successively bundled with Explosive roll I and is connected；Digital electric detonator III is arranged in the top of explosive bundling apparatus
It holds and is inserted into Explosive roll I, III insertion depth of digital electric detonator is no less than the 2/3 of III length of digital electric detonator；
(3) by step (2) blasting charge powder stick I explosive bundling apparatus from photoface exploision aperture be sent into hole in；
(4) payment to a porter of digital electric detonator III is upwardly extended along blast hole and passes through conducting wire and connect with electric initiator, then will
Stemming is packed in the blast hole of III top of digital electric detonator；
(5) it is ignited using electronic initiators control digital electric detonator III, realizes the hole-specifically accurate short delay of digital electric detonator III
Detonation.
Another structure of the Uncoincided charge device of the photoface exploision, is denoted as structure B: including being arranged in photoface exploision
The digital electric detonator I 14 of hole bottom, the top of digital electric detonator I 14 are provided with explosive bundling apparatus, explosive bundling apparatus
Top be provided with digital electric detonator II 10, the payment to a porter of digital electric detonator I 14 and digital electric detonator II 10 is along blast hole
It extends upwardly on ground and the payment to a porter of digital electric detonator I 14 is located at the outside of explosive bundling apparatus, digital electric detonator I 14
Payment to a porter with digital electric detonator II 10 passes through conducting wire external connected electronic trigger, the blast hole of II 10 top of digital electric detonator
Inside it is packed with stemming；
Explosive bundling apparatus includes the fixed arc panel of powder stickWith the fixed arc panel of powder stick, the fixed arc panel of powder stickIt is solid with powder stick
Determine arc panelCooperatively form powder stick fixed frame 13, the fixed arc panel of powder stickWith the fixed arc panel of powder stickSide wall between formed
Symmetrical cumulative groove, Explosive roll II 11 are fixed in the powder stick lock chamber of powder stick fixed frame, and Explosive roll II 11
In on the central axis in photoface exploision hole, primacord II 12 is successively bundled with Explosive roll II 11 and is connected.
Further, the outer wall axial restraint of II 11 fixed frame of Explosive roll is provided with several layers positioning strip and adjacent
The spacing of layer positioning strip is equal, and positioning strip is uniformly arranged along 13 outer wall surrounding of powder stick fixed frame.
Further, the 1/3 ~ 2/5 of the powder stick lock chamber is bottom, and the powder charge distance of powder stick lock chamber bottom is d1,
The 1/3 ~ 2/5 of powder stick lock chamber is middle part, and the powder charge distance in the middle part of powder stick lock chamber is d2, and the 1/3 ~ 1/5 of powder stick lock chamber is
Top, the powder charge distance at the top of powder stick lock chamber is d3,3cm≤d1 < d2 < d3≤5cm.
The digital electric detonator is the electric cap controlled using electronic control module initiation process, wherein electronics
Control module, which refers to, to be placed in inside digital electric detonator, has blasting cap initiation extension time control, built-in detonator identity information code
And detonating password, test can be can be carried out to the electrical property of itself function, performance and detonator igniting element, and can be with initiation control device
And the specialized circuit modules that other external control devices are communicated.
The digital electric detonator is commercial product；
Heavy initiation device MFB-50, CZQBQ-50,90,150,200 types etc. can be selected in the electric initiator.
The Uncoincided charge device of a kind of smooth blasting method of tunnel piercing, photoface exploision uses structure B, specific steps
It is as follows:
(1) gap distance >=3cm Explosive roll is chosen；
(2) the fixed arc panel of powder stick is chosenWith the fixed arc panel of powder stick, the fixed arc panel of powder stickWith the fixed arc panel of powder stickOuter diameter and photoface exploision bore dia is adapted and length and Explosive roll are adapted, Explosive roll binding is arranged in powder stick
Fixed arc panelWith the fixed arc panel of powder stickInner wall between cavity in and guarantee adjacent Explosive roll have it is certain between
Away from coefficient of decoupling charge is 1.8 ~ 2.3；Powder stick fixes arc panelWith the fixed arc panel of powder stickPowder stick is cooperatively formed to fix
Frame, the fixed arc panel of powder stickWith the fixed arc panel of powder stickSide wall between form symmetrical cumulative groove, by primacord II according to
It is secondary to be connected with Explosive roll binding；Powder stick fixed frame outer wall axial restraint is provided with several layers positioning strip and adjacent layer positioning strip
Spacing is equal, and is uniformly arranged positioning strip along powder stick fixed frame outer wall surrounding；
(3) digital electric detonator I is set in the bottom end of explosive bundling apparatus, digital electric detonator II is arranged in top；
(4) the explosive bundling apparatus of step (2) blasting charge powder stick is sent into blasthole from the top in photoface exploision hole, and is passed through
The positioning strip of powder stick fixed frame is maintained at the Explosive roll in explosive bundling apparatus on the central axes in photoface exploision hole；It will be digital
The payment to a porter of electric detonator I extends upwardly on ground along blast hole and the payment to a porter of digital electric detonator I is made to be located at explosive binding dress
The outside set, when the bottom end of explosive bundling apparatus is with the contact of photoface exploision hole bottom, powder charge is finished；
(5) by the payment to a porter of digital electric detonator I and digital electric detonatorPayment to a porter connect with electric initiator by conducting wire, then
Stemming is packed in digital electric detonatorIn the blast hole of top；
(6) using electronic initiators control digital electric detonator I and digital electric detonatorIgnite, realize digital electric detonator by
The accurate short delayed ignition in hole.
Beneficial effects of the present invention:
(1) smooth blasting method of tunnel piercing of the invention realizes Uncoincided charge and uses digital electric detonator hole-specifically
Accurate short delayed ignition；By the way that the best extension time of electric detonator is arranged, so that energy caused by the explosive first to detonate allows
Adjacent blasthole is in pre-stressed state, when the explosive charge of rear detonation, the stress wave superimposition that two groups of explosives generate, to produce
" coupling " of good blast action power is given birth to；To improve the destruction in joint-cutting direction, be conducive to heart linked to heart in smooth surface blasthole
Crack is formed on line；
(2) smooth blasting method of tunnel piercing of the invention not only ensure that the demolition effect of smooth surface but also effectively to control smooth surface quick-fried
Blasting vibration during broken.
Detailed description of the invention
Fig. 1 is tunnel smooth surface hole-by-hole initiation cloth hole pattern (main view)；
Fig. 2 is tunnel smooth surface hole-by-hole initiation cloth hole pattern (side, sectional)；
Fig. 3 is the Uncoincided charge structure drawing of device of 1 photoface exploision of embodiment；
Fig. 4 is 2 explosive bundling apparatus structural front view of embodiment；
In figure: 1- photoface exploision hole, 2- via hole, 3- keyhole, 4- primacord I, 5- Explosive roll I, the fixed arc of 6- powder stick
Plate III, 7- digital electric detonator III, 8- stemming, 9- payment to a porter, 10- digital electric detonator II, 11- Explosive roll II, 12- primacord
II, 13- powder stick fixed frame, 14- digital electric detonator I.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1: as shown in Fig. 1 ~ 4, a kind of smooth blasting method of tunnel piercing uniformly opens up light on tunnel rock
The Uncoincided charge device of photoface exploision is placed into photoface exploision hole by face blast hole (see Fig. 1 and Fig. 2), using digital electricity
Sub- detonator realizes the smooth surface of tunnel piercing hole-specifically accurate short delaying blasting；
The spacing in photoface exploision hole is 8 ~ 12 times of blast hole aperture, and the extension time of digital electric detonator is 9 ~ 12ms；
The Uncoincided charge device of photoface exploision is that structure A(is shown in Fig. 3): the Uncoincided charge device of photoface exploision includes that powder stick is solid
Determine arc panel III 6, Explosive roll I 5, primacord I 4, digital electric detonator III 7, Explosive roll I 5 is fixed at powder stick and fixes
On arc panel III 6, primacord I 4 is sequentially connected Explosive roll I 5, and the setting of digital electric detonator III 7 is in the fixed arc panel III 6 of powder stick
Orifice end close to photoface exploision hole of end and digital electric detonator III 7, photoface exploision aperture tamping 8, digital electric
The payment to a porter 9 of detonator III 7 passes through stemming 8 and passes through conducting wire external connected electronic trigger；
The coefficient of decoupling charge of Explosive roll I 5 is 1.8 ~ 2.3；The top of the fixed arc panel III 6 of powder stick is close to photoface exploision hole
Orifice end, the 1/3 ~ 2/5 of the fixed arc panel III 6 of powder stick is bottom, and the powder charge distance of fixed III 6 bottom of arc panel of powder stick is
D1, the 1/3 ~ 2/5 of the fixed arc panel III 6 of powder stick are middle part, and the powder charge distance at fixed III 6 middle part of arc panel of powder stick is d2, powder stick
The 1/3 ~ 1/5 of fixed arc panel III 6 is top, and the powder charge distance at fixed III 6 top of arc panel of powder stick is d3,3cm≤d1 < d2
< d3≤5cm；
Digital electric detonator is the electric cap controlled using electronic control module initiation process, wherein electronic control module
Refer to and be placed in inside digital electric detonator that it is close to have blasting cap initiation extension time control, built-in detonator identity information code and detonation
Code, can be carried out test to the electrical property of itself function, performance and detonator igniting element, and energy and initiation control device and other outside
The specialized circuit modules that portion's control equipment is communicated；
Digital electric detonator is commercial product；
Heavy initiation device MFB-50, CZQBQ-50,90,150,200 types etc. can be selected in electric initiator；
The Uncoincided charge device of a kind of smooth blasting method of tunnel piercing, photoface exploision uses structure A, and specific steps are such as
Under:
(1) gap distance >=3cm Explosive roll is chosen；
(2) the fixed arc panel III of powder stick that Explosive roll and photoface exploision hole length are adapted is chosen, Explosive roll I is bound solid
Fixed setting is on the fixed arc panel III of powder stick, and it is at regular intervals to guarantee that adjacent Explosive roll I has, and coefficient of decoupling charge is
1.8~2.3；Primacord I is successively bundled with Explosive roll I and is connected；Digital electric detonator III is arranged in the top of explosive bundling apparatus
It holds and is inserted into Explosive roll I, III insertion depth of digital electric detonator is no less than the 2/3 of III length of digital electric detonator；
(3) by step (2) blasting charge powder stick I explosive bundling apparatus from the top in photoface exploision hole be sent into photoface exploision hole
It is interior；
(4) payment to a porter of digital electric detonator III is upwardly extended along blast hole and passes through conducting wire and connect with electric initiator, then will
Stemming is packed in the blast hole of III top of digital electric detonator；
(5) it is ignited using electronic initiators control digital electric detonator III, realizes the hole-specifically accurate short delay of digital electric detonator III
Detonation.
Embodiment 2: a kind of smooth blasting method of tunnel piercing, uniformly opened up on tunnel rock photoface exploision hole (see
Fig. 1 and Fig. 2), the Uncoincided charge device of photoface exploision is placed into photoface exploision hole, tunnel is realized using digital electric detonator
The smooth surface of road driving hole-specifically accurate short delaying blasting；
The spacing in photoface exploision hole is 8 ~ 12 times of blast hole aperture, and the extension time of digital electric detonator is 9 ~ 12ms；
The Uncoincided charge device of photoface exploision is structure B: the digital electric detonator I including photoface exploision hole bottom is arranged in
14, the top of digital electric detonator I 14 is provided with explosive bundling apparatus, and the top of explosive bundling apparatus is provided with digital electric thunder
Pipe II 10, the payment to a porter of digital electric detonator I 14 and digital electric detonator II 10 extend upwardly on ground and digital along blast hole
The payment to a porter of electric detonator I 14 is located at the outside of explosive bundling apparatus, the foot of digital electric detonator I 14 and digital electric detonator II 10
Line passes through conducting wire external connected electronic trigger, is packed with stemming in the blast hole of II 10 top of digital electric detonator；
Explosive bundling apparatus includes the fixed arc panel of powder stickWith the fixed arc panel of powder stick, the fixed arc panel of powder stickIt is solid with powder stick
Determine arc panelCooperatively form powder stick fixed frame 13, the fixed arc panel of powder stickWith the fixed arc panel of powder stickSide wall between formed
Symmetrical cumulative groove, Explosive roll II 11 are fixed in the powder stick lock chamber of powder stick fixed frame, and Explosive roll II 11
In on the central axis of blast hole, primacord II 12 is successively bundled with Explosive roll II 11 and is connected；
The outer wall axial restraint of II 11 fixed frame of Explosive roll is provided with the spacing phase of several layers positioning strip and adjacent layer positioning strip
Deng positioning strip is uniformly arranged along 13 outer wall surrounding of powder stick fixed frame；
The 1/3 ~ 2/5 of powder stick lock chamber be bottom, powder stick lock chamber bottom powder charge distance be d1, the 1/3 ~ 2/ of powder stick lock chamber
5 be middle part, and the powder charge distance in the middle part of powder stick lock chamber is d2, and the 1/3 ~ 1/5 of powder stick lock chamber is top, powder stick lock chamber top
Powder charge distance be d3,3cm≤d1 < d2 < d3≤5cm；
Digital electric detonator is the electric cap controlled using electronic control module initiation process, wherein electronic control module
Refer to and be placed in inside digital electric detonator that it is close to have blasting cap initiation extension time control, built-in detonator identity information code and detonation
Code, can be carried out test to the electrical property of itself function, performance and detonator igniting element, and energy and initiation control device and other outside
The specialized circuit modules that portion's control equipment is communicated；
Digital electric detonator is commercial product；
Heavy initiation device MFB-50, CZQBQ-50,90,150,200 types etc. can be selected in electric initiator；
Cumulative groove can strengthen the energy of cut direction；
In blast hole, the bottom end of blast hole and the top of explosive bundling apparatus are respectively provided with digital electric detonator, and explosion can be improved
Reliability；
The Uncoincided charge device of a kind of smooth blasting method of tunnel piercing, photoface exploision uses structure B, and specific steps are such as
Under:
(1) gap distance >=3cm Explosive roll is chosen；Explosive type, chooses Φ 32mm, and No. 1 rock emulsion explosive volume 5 is long
Degree is 30cm, and weight 300g, density is 0.95-1. 30g/cm3；
(2) the fixed arc panel of powder stick is chosenWith the fixed arc panel of powder stick, the fixed arc panel of powder stickWith the fixed arc panel of powder stickOuter diameter and photoface exploision bore dia is adapted and length and Explosive roll are adapted, Explosive roll binding is arranged in powder stick
Fixed arc panelWith the fixed arc panel of powder stickInner wall between cavity in and guarantee adjacent Explosive roll have it is certain between
Away from coefficient of decoupling charge is 1.8 ~ 2.3；Powder stick fixes arc panelWith the fixed arc panel of powder stickPowder stick is cooperatively formed to fix
Frame, the fixed arc panel of powder stickWith the fixed arc panel of powder stickSide wall between form symmetrical cumulative groove, by primacord II according to
It is secondary to be connected with Explosive roll binding；Powder stick fixed frame outer wall axial restraint is provided with several layers positioning strip and adjacent layer positioning strip
Spacing is equal, and is uniformly arranged positioning strip along powder stick fixed frame outer wall surrounding；
(3) digital electric detonator I is set in the bottom end of explosive bundling apparatus, digital electric detonator II is arranged in top；
(4) the explosive bundling apparatus of step (2) blasting charge powder stick is sent into blasthole from the top in photoface exploision hole, and is passed through
The positioning strip of powder stick fixed frame is maintained at the Explosive roll in explosive bundling apparatus on the central axes in photoface exploision hole；It will be digital
The payment to a porter of electric detonator I extends upwardly on ground along blast hole and the payment to a porter of digital electric detonator I is made to be located at explosive binding dress
The outside set, when the bottom end of explosive bundling apparatus is with the contact of photoface exploision hole bottom, powder charge is finished；
(5) by the payment to a porter of digital electric detonator I and digital electric detonatorPayment to a porter connect with electric initiator by conducting wire, then
Stemming is packed in digital electric detonatorIn the blast hole of top；
(6) using electronic initiators control digital electric detonator I and digital electric detonatorIgnite, realize digital electric detonator by
The accurate short delayed ignition in hole.
Embodiment 3: a kind of smooth blasting method of tunnel piercing, using the Uncoincided charge device of photoface exploision, specifically
Steps are as follows:
(1) Φ 32mm, emulsion volume, length 30cm, weight 300g, density 0.95-1.30g/cm are chosen3, induced detonation
The Explosive roll of distance 3cm:
(2) the fixed arc panel of powder stick is chosenWith the fixed arc panel of powder stick, the fixed arc panel of powder stickWith the fixed arc panel of powder stickOuter diameter be 34mm, wall thickness 2mm, intercepted length 1m；Powder stick fixes arc panelWith the fixed arc panel of powder stickOuter diameter
It is adapted with photoface exploision bore dia and length and Explosive roll is adapted, by Explosive roll binding setting in the fixed arc of powder stick
PlateWith the fixed arc panel of powder stickInner wall between cavity in and guarantee that adjacent Explosive roll tool is at regular intervals, i.e. powder stick
The 2/5 of lock chamber is bottom, and the powder charge distance of powder stick lock chamber bottom is d1, and the 2/5 of powder stick lock chamber is middle part, and powder stick is fixed
Powder charge distance in the middle part of chamber is d2, and the 1/5 of powder stick lock chamber is top, and the powder charge distance at the top of powder stick lock chamber is d3, and d1 is
3cm, d2 4cm, d3 5cm；The quantity of Explosive roll is volume 3, and powder stick quantity, which can carry out appropriate adjustment with blast hole depth, to be made to fill
The coefficient of coup is not 1.8 ~ 2.3 to medicine；Powder stick fixes arc panelWith the fixed arc panel of powder stickCooperatively form powder stick fixed frame, medicine
Roll up fixed arc panelWith the fixed arc panel of powder stickSide wall between form symmetrical cumulative groove, by primacord II successively with
Explosive roll binding connection；Powder stick fixed frame outer wall axial restraint is provided with the spacing of several layers positioning strip and adjacent layer positioning strip
It is equal, and it is uniformly arranged positioning strip along powder stick fixed frame outer wall surrounding；
(3) digital electric detonator I is set in the bottom end of explosive bundling apparatus, digital electric detonator II is arranged in top；
(4) the explosive bundling apparatus of step (2) blasting charge powder stick is sent into blasthole from the top in photoface exploision hole, and is passed through
The positioning strip of powder stick fixed frame is maintained at the Explosive roll in explosive bundling apparatus on the central axes in photoface exploision hole；It will be digital
The payment to a porter of electric detonator I extends upwardly on ground along blast hole and the payment to a porter of digital electric detonator I is made to be located at explosive binding dress
The outside set, when the bottom end of explosive bundling apparatus is with the contact of photoface exploision hole bottom, powder charge is finished；
(5) by the payment to a porter of digital electric detonator I and digital electric detonatorPayment to a porter connect with electric initiator by conducting wire, then
Stemming is packed in digital electric detonatorIn the blast hole of top；
(6) using electronic initiators control digital electric detonator I and digital electric detonatorIgnite, realize digital electric detonator by
The accurate short delayed ignition in hole；The best extension time of digital electric detonator is 9 ~ 12ms；
The Uncoincided charge and hole-by-hole initiation method of the present embodiment photoface exploision carry out photoface exploision using common emulsion,
Achieve the effect that photoface exploision, economic benefit and social benefit are more significant.
Specific embodiments of the present invention are explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned realities
Example is applied, it within the knowledge of a person skilled in the art, can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (7)
1. a kind of smooth blasting method of tunnel piercing, it is characterised in that: photoface exploision hole is uniformly opened up on tunnel rock, it will
The Uncoincided charge device of photoface exploision is placed into photoface exploision hole, and the smooth surface of tunnel piercing is realized using digital electric detonator
Hole-specifically accurate short delaying blasting.
2. the smooth blasting method of tunnel piercing according to claim 1, it is characterised in that: the spacing in photoface exploision hole is quick-fried
8 ~ 12 times of holes aperture, the extension time of digital electric detonator are 9 ~ 12ms.
3. the smooth blasting method of tunnel piercing according to claim 1 or claim 2, it is characterised in that: photoface exploision does not couple
Means for loading includes powder stick fixed arc panel III (6), Explosive roll I (5), primacord I (4), digital electric detonator III (7), is fried
Medicine powder stick I (5) is fixed on powder stick fixed arc panel III (6), and primacord I (4) is sequentially connected Explosive roll I (5), digital
End and digital electric detonator III (7) close photoface exploision hole of electric detonator III (7) setting in powder stick fixed arc panel III (6)
Orifice end, photoface exploision aperture tamping (8), the payment to a porter (9) of digital electric detonator III (7) passes through stemming (8) and passes through
Conducting wire external connected electronic trigger.
4. the smooth blasting method of tunnel piercing according to claim 3, it is characterised in that: the powder charge of Explosive roll I (5) is not
The coefficient of coup is 1.8 ~ 2.3；Orifice end of the top of powder stick fixed arc panel III (6) close to photoface exploision hole, the fixed arc of powder stick
The 1/3 ~ 2/5 of shape plate III (6) is bottom, and the powder charge distance of fixed arc panel III (6) bottom of powder stick is d1, the fixed arc panel of powder stick
The 1/3 ~ 2/5 of III (6) is middle part, and the powder charge distance in the middle part of powder stick fixed arc panel III (6) is d2, the fixed arc panel III of powder stick
(6) 1/3 ~ 1/5 is top, and the powder charge distance at the top of powder stick fixed arc panel III (6) is d3,3cm≤d1 < d2 < d3≤
5cm。
5. the smooth blasting method of tunnel piercing according to claim 1 or claim 2, it is characterised in that: photoface exploision does not couple
Means for loading includes the digital electric detonator I (14) that photoface exploision hole bottom is arranged in, and the top of digital electric detonator I (14) is set
It is equipped with explosive bundling apparatus, the top of explosive bundling apparatus is provided with digital electric detonator II (10), digital electric detonator I (14)
Payment to a porter with digital electric detonator II (10) extends upwardly on ground along blast hole and the payment to a porter position of digital electric detonator I (14)
In the outside of explosive bundling apparatus, the payment to a porter of digital electric detonator I (14) and digital electric detonator II (10) passes through outside conducting wire
Connect electric initiator, tamping in the blast hole above digital electric detonator II (10)；
Explosive bundling apparatus includes the fixed arc panel of powder stickWith the fixed arc panel of powder stick, the fixed arc panel of powder stickIt is solid with powder stick
Determine arc panelIt cooperatively forms powder stick fixed frame (13), the fixed arc panel of powder stickWith the fixed arc panel of powder stickSide wall between shape
At symmetrical cumulative groove, Explosive roll II (11) is fixed in the powder stick lock chamber of powder stick fixed frame, Explosive roll II
(11) on the central axis of blast hole, primacord II (12) is successively bundled with Explosive roll II (11) and is connected.
6. the smooth blasting method of tunnel piercing according to claim 5, it is characterised in that: Explosive roll II (11) fixed frame
Outer wall axial restraint be provided with several layers positioning strip and the spacing of adjacent layer positioning strip is equal, positioning strip is along powder stick fixed frame
(13) outer wall surrounding is uniformly arranged.
7. the smooth blasting method of tunnel piercing according to claim 5, it is characterised in that: the 1/3 ~ 2/5 of powder stick lock chamber
For bottom, the powder charge distance of powder stick lock chamber bottom is d1, and the 1/3 ~ 2/5 of powder stick lock chamber is middle part, powder stick lock chamber middle part
Powder charge distance be d2, the 1/3 ~ 1/5 of powder stick lock chamber is top, and the powder charge distance at the top of powder stick lock chamber is d3,3cm≤d1
< d2 < d3≤5cm.
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