CN109059690A - A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method - Google Patents
A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method Download PDFInfo
- Publication number
- CN109059690A CN109059690A CN201811047863.9A CN201811047863A CN109059690A CN 109059690 A CN109059690 A CN 109059690A CN 201811047863 A CN201811047863 A CN 201811047863A CN 109059690 A CN109059690 A CN 109059690A
- Authority
- CN
- China
- Prior art keywords
- slungshot
- blasting
- open cut
- cut tunnel
- effectively preventing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/10—Feeding explosives in granular or slurry form; Feeding explosives by pneumatic or hydraulic pressure
Abstract
A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method, comprising the following steps: 1., behind the area presplit blasting III, carries out the area I, II charging blast-hole and empty eye to apply brill；2., charging blast-hole using positive continuous structure powder charge, snubber can be spaced blashole charge；3., detonator wire is even close to jail, guarantee to be powered good, upper cover 0.5m thickness sand；4., using with a thickness of 30mm steel plate cover blasting body, discharge water on top and flood 0.5~1.0m high of steel plate；5., equipment, personnel, animal etc. evacuate to outside safe distance, warn, confirm and go to check again after detonation after safety, big gun are rung 15 minutes, get rid of the danger, confirmation is without releasing warning after danger.The beneficial effects of the present invention are: dense mud and wet clay can effectively absorb blasting energy, concussion of blasting is reduced, reduces noise；Blasting body is covered using steel plate, pushes down boundary, effectively prevents slungshot, guarantees construction area, residential block and workshop safety.
Description
Technical field
The present invention relates to blasting technique fields, and in particular to a kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig pine
Dynamic blasting method.
Background technique
Explosion is destroyed structure with explosive, very common in constructing tunnel, in many constructing tunnels, need into
Row open cut tunnel explosion, open cut tunnel explosion can accelerate construction speed, improve construction effect.
In the railway terminal engineering tunnel of Dalian, open cut tunnel is up to more than 800 rice, and explosion place is especially close far from residential block, individually
Red line is constructed next to building in place, is also easy to produce a large amount of slungshots using open cut tunnel Blasting Excavation, slungshot splashes give anti-nurse
Great inconvenience is brought, and slungshot can not also be controlled well, causes security risk big, neighbouring resident and workshop worker
Often resistance work, construction progress pole is not smooth, causes very huge economic loss to unit in charge of construction.
Summary of the invention
It is erected the purpose of the present invention is to provide a kind of open cut tunnel for effectively preventing slungshot, reducing vibration and digs standing method,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method, comprising the following steps:
1., behind the area presplit blasting III, carry out the area I, II charging blast-hole and empty eye to apply brill；
2., charging blast-hole using positive continuous structure powder charge, snubber can be spaced blashole charge；
3., detonator wire is even close to jail, guarantee to be powered good, upper cover 0.5m thickness sand；
4., using with a thickness of 30mm steel plate cover blasting body, discharge water on top and flood 0.5~1.0m high of steel plate；
5., equipment, personnel, animal etc. evacuate to outside safe distance, warn, confirm that detonation after safety, big gun are rung 15 minutes
It goes to check again afterwards, get rid of the danger, confirmation is without releasing warning after danger；
6., by same method to the area II carry out blast working.
Be as a further solution of the present invention: step 1. in apply the drill bit of brill and select φ 75mm, borehole spacing is
1000mm, burden 1200mm, snubber depth are 4m, and reliever depth is 3.5m, make a call to 4 skies between adjacent two rows charging blast-hole
Eye.
As the present invention, further scheme is: selection φ 70mm emulsification water-proof explosive and second-delay detonator, adjacent two
Section delays to be 1.2~1.4s, and stemming fills out 1.0m high with wet clay, remaining all to be blocked with dense mud, empty eye not powder charge, all
Fill dense mud.
As the present invention, further scheme is: steel plate must push down boundary, 300~500mm be overlapped, with M36 or more spiral shell
Bolt is connected firmly.
As the present invention further scheme be: step 5. in, hide big gun safe distance cannot be less than 200m, every crossing
It is intended to set blasting guarding, equipment, personnel, animal etc. evacuate to outside safe distance, operator's band safety cap.
The beneficial effects of the present invention are:
1, dense mud and wet clay can effectively absorb blasting energy, reduce concussion of blasting, reduce noise；
2, blasting body is covered using steel plate, pushes down boundary, effectively prevent slungshot, guarantee construction area, residential block and workshop peace
Entirely.
Detailed description of the invention
Fig. 1 is the perpendicular layout drawing for digging blasting boreholes of open cut tunnel of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method, including following step
It is rapid:
1., behind the area presplit blasting III, carry out the area I, II charging blast-hole and empty eye to apply brill；
2., charging blast-hole using positive continuous structure powder charge, snubber can be spaced blashole charge；
3., detonator wire is even close to jail, guarantee to be powered good, upper cover 0.5m thickness sand prevents subsequent security implementations work
It destroys, break in work；
4., using with a thickness of 30mm steel plate cover blasting body, discharge water on top and flood 0.5~1.0m high of steel plate, be used for
Energy is absorbed, blast-shaking speed is reduced, prevents slungshot occur；
5., equipment, personnel, animal etc. evacuate to outside safe distance, warn, confirm that detonation after safety, big gun are rung 15 minutes
It goes to check again afterwards, get rid of the danger, confirmation is without releasing warning after danger；The implementation person of blowing out, squad leader and security official's linkage blasting system.By pacifying
Crew is responsible for putting warning, and squad leader takes charge, the person of blowing out squad leader make an inspection tour safety issue blow out instruction after, using loudspeaker,
It blows a whistle warning, just starts detonation after confirming surrounding safety；
6., by same method to the area II carry out blast working.
Step 1. in apply the drill bit of brill and select φ 75mm, borehole spacing is 1000mm, burden 1200mm, snubber are deep
For 4m, reliever depth is 3.5m, and 4 empty eyes are made a call between adjacent two rows charging blast-hole.
φ 70mm emulsification water-proof explosive and second-delay detonator are selected, delays for adjacent two sections to be 1.2~1.4s, stemming is used wet
Clay fills out 1.0m high, remaining all to be blocked with dense mud, and dense mud is all filled in empty eye not powder charge, for absorbing energy, reduces
Concussion of blasting.
Steel plate must push down boundary, overlap 300~500mm, be bolted securely with M36 or more.
Step 5. in, big gun safe distance of hiding cannot be less than 200m, and every crossing be intended to set blasting guarding, equipment, personnel, dynamic
Object etc. evacuates to outside safe distance, operator's band safety cap.
1 area open cut tunnel Shu Wa I blasting parameter design table of table
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method, which is characterized in that including following step
It is rapid:
1., behind the area presplit blasting III, carry out the area I, II charging blast-hole and empty eye to apply brill；
2., charging blast-hole using positive continuous structure powder charge, snubber can be spaced blashole charge；
3., detonator wire is even close to jail, guarantee to be powered good, upper cover 0.5m thickness sand；
4., using with a thickness of 30mm steel plate cover blasting body, discharge water on top and flood 0.5~1.0m high of steel plate；
5., equipment, personnel, animal etc. evacuate to outside safe distance, warn, confirm after detonation after safety, big gun are rung 15 minutes again
It goes to check, get rid of the danger, confirmation is without releasing warning after danger；
6., by same method to the area II carry out blast working.
2. a kind of open cut tunnel for effectively preventing slungshot, reducing vibration according to claim 1 erects standing method of digging, special
Sign is, step 1. in apply the drill bit of brill and select φ 75mm, borehole spacing is 1000mm, burden 1200mm, snubber are deep
For 4m, reliever depth is 3.5m, and 4 empty eyes are made a call between adjacent two rows charging blast-hole.
3. a kind of open cut tunnel for effectively preventing slungshot, reducing vibration according to claim 1 erects standing method of digging, special
Sign is, selects φ 70mm emulsification water-proof explosive and second-delay detonator, delays for adjacent two sections to be 1.2~1.4s, stemming is used wet
Clay fills out 1.0m high, remaining all to be blocked with dense mud, and dense mud is all filled in empty eye not powder charge.
4. a kind of open cut tunnel for effectively preventing slungshot, reducing vibration according to claim 1 to 3 is perpendicular to dig standing side
Method, which is characterized in that steel plate must push down boundary, overlap 300~500mm, be bolted securely with M36 or more.
5. a kind of open cut tunnel for effectively preventing slungshot, reducing vibration according to claim 4 erects standing method of digging, special
Sign is, step 5. in, big gun safe distance of hiding cannot be less than 200m, and every crossing be intended to set blasting guarding, equipment, personnel, dynamic
Object etc. evacuates to outside safe distance, operator's band safety cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047863.9A CN109059690A (en) | 2018-09-10 | 2018-09-10 | A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047863.9A CN109059690A (en) | 2018-09-10 | 2018-09-10 | A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method |
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| Publication Number | Publication Date |
|---|---|
| CN109059690A true CN109059690A (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811047863.9A Pending CN109059690A (en) | 2018-09-10 | 2018-09-10 | A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059691A (en) * | 2018-09-10 | 2018-12-21 | 中铁十八局集团有限公司 | A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method |
| CN111121573A (en) * | 2019-12-30 | 2020-05-08 | 临沂会宝岭铁矿有限公司 | Ground loosening blasting method for dense plant area |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419041A (en) * | 2008-11-19 | 2009-04-29 | 中煤第一建设公司第四十九工程处 | Deep hole blasting process in frost weathering bedrock segment |
| US20130247789A1 (en) * | 2012-03-20 | 2013-09-26 | Brent Dee Alexander | Hot hole charge system |
| CN106595410A (en) * | 2016-12-24 | 2017-04-26 | 中铁十八局集团有限公司 | Deep foundation pit earth pressure controlled blasting method |
-
2018
- 2018-09-10 CN CN201811047863.9A patent/CN109059690A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419041A (en) * | 2008-11-19 | 2009-04-29 | 中煤第一建设公司第四十九工程处 | Deep hole blasting process in frost weathering bedrock segment |
| US20130247789A1 (en) * | 2012-03-20 | 2013-09-26 | Brent Dee Alexander | Hot hole charge system |
| CN106595410A (en) * | 2016-12-24 | 2017-04-26 | 中铁十八局集团有限公司 | Deep foundation pit earth pressure controlled blasting method |
Non-Patent Citations (1)
| Title |
|---|
| 中铁二局股份有限公司编著: "《土木工程施工工艺-隧道及地铁工程》", 31 March 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109059691A (en) * | 2018-09-10 | 2018-12-21 | 中铁十八局集团有限公司 | A kind of open cut tunnel for effectively preventing slungshot, reducing vibration is perpendicular to dig standing method |
| CN111121573A (en) * | 2019-12-30 | 2020-05-08 | 临沂会宝岭铁矿有限公司 | Ground loosening blasting method for dense plant area |
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Application publication date: 20181221 |
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