CN107063017A - It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise - Google Patents
It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise Download PDFInfo
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- CN107063017A CN107063017A CN201611211317.5A CN201611211317A CN107063017A CN 107063017 A CN107063017 A CN 107063017A CN 201611211317 A CN201611211317 A CN 201611211317A CN 107063017 A CN107063017 A CN 107063017A
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- eye
- mud
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- tunnel
- powder charge
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Classifications
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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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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise, drilling is positioned by quick-fried layout drawing is bored.It is clean that with high-pressure blast eye is swept before powder charge, rock emulsion explosive and non-electrical second-delay detonator are selected respectively, powder charge is carried out to powder charge eye by buffer blasting parameter designing table, periphery hole spaced loading, remaining borehole continuous charging, powder charge on earth, and should be blocked in place with stemming, and empty eye is filled using plastic bag mud.Detonator is connected on request in place, equipment, personnel are removed beyond safe distance, detonated after confirming safety.The present invention can not only strengthen the quick-fried power in eyeground, improve explosion drilling depth, especially strengthen to blasting impact wave reflection, refraction and absorb, accelerate shock wave → decay → stress wave → decay → seismic wave, greatly reduce blasting vibration and noise, Explosive Vibrating Velocity is greatly reduced and disturbed residents in below 5cm/s after testing, achieves good techno-economic effect.
Description
Technical field
The empty eye mud vibration damping Controlled blasting technique in tunnel with noise is shaken the present invention relates to a kind of effective reduction, specifically
Say, be the construction technology that empty eye is set in blasting body and plastic bag mud is clogged.
Background technology
Big Black Hills tunnel abuts residential block, because blast working noise and vibrations are larger, is hindered work by neighbouring resident for a long time,
Repeatedly night blast working is forbidden in dispatch for Environmental Protection Agency, and progress is very slow.
The content of the invention
The problem of purpose of the present invention is that solution blast working noise is big, vibrations are big, disturbs residents serious, proposes that one kind has
The vibration damping Controlled blasting technique of effect reduction concussion of blasting and noise, using many emptying eyes, the empty eye of periphery interorbital space and powder charge eye
Residue length is by design dress Φ 35mm × 500mm or Φ 35mm × 1000mm plastic bag mud, and the ophthalmically acceptable stemming closure of powder charge should
Method construction technology is simple, practical, economical, efficient.
The technical scheme is that：The empty eye mud vibration damping control in tunnel of a kind of effective reduction concussion of blasting and noise is quick-fried
Broken technology.It is characterized in that：Carried out according to the following steps：
1. drilling is positioned by brill quick-fried layout drawing, self-spraying paint sign is determined according to buffer blasting parameter designing table
Technical parameter carries out perforating from Φ 38mm " one " fonts drill bit.
2. eye is swept before powder charge with high-pressure blast totally, is emulsified respectively from specification Φ 32mm × 200mm × 200g 2# rocks
Explosive and non-electrical second-delay detonator, by buffer blasting parameter designing table to powder charge eye carry out powder charge, periphery hole spaced loading, remaining
Borehole continuous charging, powder charge on earth, and should be blocked in place with stemming, empty eye using Φ 35mm × 500mm or Φ 35mm ×
1000mm plastic bags mud is filled.
3. detonator is connected on request in place, equipment, personnel are removed beyond safe distance, risen after confirming safety
It is quick-fried.
During above-mentioned perforating, determine eye and want standard, borehole is straight, and angle is right, in addition to snubber and bottom eye, other eyes want base
Originally fall at grade.
Above-mentioned mud specification of plastic bag is the ㎜ of the ㎜ or ㎜ of Φ 35 of ㎜ of Φ 35 × 500 × 1000, polybag must producer have made to order,
Ensure quality.
Above-mentioned packed mud is put into sky at the moment, to handle with care, be put if necessary with relatively thin Φ 38mm pvc pipe sets, it is ensured that
Crust is not broken, and mud can not be spread out.
Appeal stemming makes of yellow clay, watering moistening, soft appropriateness, is conducive to loading, blocks heel.
Above-mentioned powder charge uses second-delay detonator, is 1.2~1.4 seconds per adjacent two intersegmental extension times.
The tunnel of table 1 sky eye mud vibration damping controlled blasting top bar blasting parameter design table
The tunnel of table 2 sky eye mud vibration damping controlled blasting initial condition and expected blasting effect table
The sky eye mud vibration damping controlled blasting of the tunnel of table 3 is got out of a predicament or an embarrassing situation unilateral buffer blasting parameter designing table
The sky eye mud vibration damping controlled blasting of the tunnel of table 4 is got out of a predicament or an embarrassing situation unilateral buffer blasting initial condition and Expected Results table
The present invention has the advantage that and good effect：
1. the quick-fried power in eyeground can not only be strengthened by filling empty eye and stemming closure powder charge eye using packed mud, improved explosion and entered
Chi, especially strengthens to blasting impact wave reflection, refraction and absorbs, accelerate shock wave → decay → stress wave → decay → earthquake
Ripple, greatly reduces blasting vibration, noise, and Explosive Vibrating Velocity is greatly reduced and disturbed residents in 5cm/s after testing.2. residence nearby is solved
The people hinder work problem, realize night work continuous construction in 24 hours, improve construction speed, achieve good Technological Economy effect
Really.
Brief description of the drawings
Fig. 1 is that the empty eye mud vibration damping Controlled blasting technique in tunnel bores quick-fried layout drawing
Embodiment
A kind of empty eye mud vibration damping Controlled blasting technique in tunnel of effective reduction concussion of blasting and noise.Specific implementation process
It is as follows：1. excavation face crag is purged, drilling is accurately positioned by quick-fried layout drawing is bored, self-spraying paint sign, according to explosion ginseng
In number design table, the technical parameter such as inclination angle, eye depth, eye distance applies brill from Φ 38mm " one " font drill bit, digs out 40mm blastholes.
2. sweep that eye is clean before powder charge using high-pressure blast, respectively the 2# rock emulsion explosives from specification Φ 32mm × 200mm × 200g and
Non-electrical second-delay detonator, carries out powder charge, periphery hole spaced loading, remaining borehole connects by buffer blasting parameter designing table to powder charge eye
Continuous powder charge, powder charge on earth, and should be blocked in place with stemming.3. empty eye using Φ 35mm × 500mm or Φ 35mm ×
1000mm plastic bags mud is filled, and should be handled with care during filling, be put if necessary using Φ 38mmPVC pipe sleeves, prevent polybag
Breakage, mud is spread out.4. detonator is connected on request in place, equipment, personnel are removed beyond safe distance, confirms that safety is laggard
Row detonation.
Claims (5)
1. a kind of reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise, it is characterised in that：According to following step
It is rapid to carry out：S1 is positioned by quick-fried layout drawing is bored to drilling, and the technical parameter determined according to buffer blasting parameter designing table is selected
Φ 38mm " one " fonts drill bit carries out perforating；Eye is swept with high-pressure blast totally, before S2 powder charges respectively from specification Φ 32mm × 200mm
× 200g 2# rock emulsion explosives and non-electrical second-delay detonator, powder charge is carried out by buffer blasting parameter designing table to powder charge eye,
Periphery hole spaced loading, remaining borehole continuous charging, powder charge on earth, and should be blocked in place with stemming, and empty eye uses Φ
35mm × 500mm or Φ 35mm × 1000mm plastic bags mud filling；S3 connects detonator in place on request, equipment, personnel
Remove beyond safe distance, detonated after confirming safety.
2. a kind of reduction vibrations according to claim 1 and the empty eye mud vibration damping controlled blasting method in tunnel of noise, its
It is characterised by：Mud specification of plastic bag is Φ 35mm × 500mm or Φ 35mm × 1000mm, and polybag is tailor-made part.
3. a kind of reduction vibrations according to claim 1 and the empty eye mud vibration damping controlled blasting method in tunnel of noise, its
It is characterised by：Packed mud is put into sky at the moment, to handle with care, be put if necessary with thin Φ 38mmPVC pipe sleeves, it is ensured that crust is not
Broken, mud can not be spread out.
4. a kind of reduction vibrations according to claim 1 and the empty eye mud vibration damping controlled blasting method in tunnel of noise, its
It is characterised by：Stemming is made from yellow clay, watering moistening, soft appropriateness, is conducive to loading, is blocked heel.
5. a kind of reduction vibrations according to claim 1 and the empty eye mud vibration damping controlled blasting method in tunnel of noise, its
It is characterised by：Powder charge uses second-delay detonator, is 1.2~1.4 seconds per adjacent two intersegmental extension times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211317.5A CN107063017A (en) | 2016-12-24 | 2016-12-24 | It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211317.5A CN107063017A (en) | 2016-12-24 | 2016-12-24 | It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise |
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| Publication Number | Publication Date |
|---|---|
| CN107063017A true CN107063017A (en) | 2017-08-18 |
Family
ID=59623800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611211317.5A Pending CN107063017A (en) | 2016-12-24 | 2016-12-24 | It is a kind of to reduce the empty eye mud vibration damping controlled blasting method in the tunnel of vibrations and noise |
Country Status (1)
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| CN (1) | CN107063017A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341450A (en) * | 2018-10-30 | 2019-02-15 | 中电建南方建设投资有限公司 | A kind of Tunnel Blasting structure and Tunnel Blasting construction method |
| CN111023927A (en) * | 2019-12-02 | 2020-04-17 | 中国铁建重工集团股份有限公司 | Soft rock single-step deep hole undercutting vibration-reduction flat-bottom light explosion structure in tunnel |
| CN114322686A (en) * | 2021-12-31 | 2022-04-12 | 北京住总集团有限责任公司 | Detonating network structure and control method for safety blasting of underground excavation tunnel |
| CN115183643A (en) * | 2022-06-21 | 2022-10-14 | 贵州省公路工程集团有限公司 | Safe construction method for controlling blasting noise and shock wave of tunnel close to residential area |
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| CN105588479A (en) * | 2016-02-25 | 2016-05-18 | 中铁十八局集团有限公司 | Three-times elementary error vibration reduction major blasting method using rock flour spaced loading in blasting holes |
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| CN102095338A (en) * | 2010-12-14 | 2011-06-15 | 中国建筑第八工程局有限公司 | Tunneling electron detonator blasting construction method |
| CN102809329A (en) * | 2012-08-17 | 2012-12-05 | 重庆市爆破工程建设有限责任公司 | Stone shallow hole blasting control method applied in town |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341450A (en) * | 2018-10-30 | 2019-02-15 | 中电建南方建设投资有限公司 | A kind of Tunnel Blasting structure and Tunnel Blasting construction method |
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| CN111023927A (en) * | 2019-12-02 | 2020-04-17 | 中国铁建重工集团股份有限公司 | Soft rock single-step deep hole undercutting vibration-reduction flat-bottom light explosion structure in tunnel |
| CN111023927B (en) * | 2019-12-02 | 2022-04-05 | 中铁十八局集团有限公司 | Soft rock single-step deep hole undercutting vibration-reduction flat-bottom light explosion structure in tunnel |
| CN114322686A (en) * | 2021-12-31 | 2022-04-12 | 北京住总集团有限责任公司 | Detonating network structure and control method for safety blasting of underground excavation tunnel |
| CN115183643A (en) * | 2022-06-21 | 2022-10-14 | 贵州省公路工程集团有限公司 | Safe construction method for controlling blasting noise and shock wave of tunnel close to residential area |
| CN115183643B (en) * | 2022-06-21 | 2023-11-10 | 贵州省公路工程集团有限公司 | Safe construction method for controlling blasting noise and shock waves of tunnels in close vicinity of residential areas |
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Application publication date: 20170818 |