CN109029175A - House slight dynamite construction method and blast hole loading structure are worn under subway tunnel low coverage - Google Patents
House slight dynamite construction method and blast hole loading structure are worn under subway tunnel low coverage Download PDFInfo
- Publication number
- CN109029175A CN109029175A CN201810879048.2A CN201810879048A CN109029175A CN 109029175 A CN109029175 A CN 109029175A CN 201810879048 A CN201810879048 A CN 201810879048A CN 109029175 A CN109029175 A CN 109029175A
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- China
- Prior art keywords
- blasthole
- blasting
- blast hole
- loading structure
- house
- 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
Links
- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000005422 blasting Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000004880 explosion Methods 0.000 claims abstract description 24
- 239000002360 explosive Substances 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract description 3
- 239000000428 dust Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 230000006855 networking Effects 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims 1
- 239000003814 drug Substances 0.000 claims 1
- 230000008569 process Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses house slight dynamite construction method and blast hole loading structure is worn under a kind of subway tunnel low coverage, belong to High-Density Urban Area slight dynamite technical field.House slight dynamite construction method is worn under subway tunnel low coverage of the invention to include the following steps: 1) to make blast hole loading structure；2) construction site soil structure is surveyed, blasting network structure is designed；3) in-site measurement unwrapping wire is then carried out, and is drilled according to drawoff structure；4) blasting hole is loaded according to bore position；5) the delaying blasting time of each blasting hole is set, explosion is then started；6) it looks for top and just sprays area surface concrete；7) preliminary bracing is carried out；8) demolition effect is evaluated.Blast hole loading structure of the invention is alternately filled with water bag and explosive in blasthole.House slight dynamite construction method and blast hole loading structure are worn under subway tunnel low coverage of the invention can effectively reduce the vibration of blast working generation, noise, effectively improve construction efficiency, and guarantee safety.
Description
Technical field
The invention belongs to High-Density Urban Area slight dynamite fields, and in particular to it is micro- to wear house under to a kind of subway tunnel low coverage
Shake blasting construction method and blast hole loading structure.
Background technique
In the Facilities Constructions such as Municipal, traffic, water conservancy, low coverage shallow embedding under-traverse tunnel is frequently encountered.Generally locate in tunnel
In Urban Areas, tunnel upper often has the buildings such as workshop, residential house, and Blasting Excavation must assure that the peace of tunnel upper building
Entirely, main glissando includes: small drilling depth driving, presplit blasting, step excavation etc. at this stage, guarantees that engineering safety is all to drop
Premised on low construction efficiency, while blasting dust is very harmful to workers ' health, and dust removal by ventilation takes a long time, drop vibration
Depositing dust and the progress of excavation are particularly thorny, and blasting dust also will cause environmental pollution；Meanwhile Construction of Shallow-Buried Section surrounding enviroment are more multiple
Miscellaneous, concussion of blasting is big to region construction infection, and blast working can impact civil plantation environment around, and citizen shake to explosion
Dynamic and shock wave is most sensitive, easily causes " disturbing residents " and " people disturb ", it is necessary to conscientiously pay attention to influence of the blast working to environment.
Summary of the invention
Technical problem to be solved by the present invention lies in provide and wear slight dynamite construction in house under a kind of subway tunnel low coverage
Method, the vibration that can reduce work progress borehole blasting the noise for reducing explosion, improve the efficiency of construction, and increase construction
Safety.
The technical problems to be solved by the invention also reside in, and provide a kind of blast hole loading structure, for above-mentioned subway tunnel
House slight dynamite construction method is worn under road low coverage, the noise that the vibration in blasting process can be effectively reduced, reduce explosion,
Increase the safety of explosion.
The present invention solves solution used by above-mentioned technical problem: providing and wears house under a kind of subway tunnel low coverage
Slight dynamite construction method includes the following steps: 1) to design blast hole loading structure, water bag, explosive is alternately filled in blasthole；2)
Construction site soil structure is surveyed, blasting network structure is designed；3) in-site measurement unwrapping wire is carried out, and is drilled according to unwrapping wire；
4) powder charge and blasting network networking are carried out according to bore position and design blast hole loading structure；5) essence of each digital primer is set
Quasi- delaying blasting time, successively explosion；6) dust removal by ventilation looks for top and just sprays area surface concrete；7) preliminary bracing is carried out；8) right
Demolition effect is evaluated: if demolition effect is good, being returned to step 3), is initially entered next construction circulation；If explosion
Effect is poor, then returns to step 1), carries out blast hole loading structure and blasting network optimization.
As a further improvement of the above technical scheme, the water bag is filled between the adjacent explosive, to reduce explosion powder
Dirt and blasting vibration peak speed, are precisely controlled short-delay blasting using digital primer.
The present invention also provides a kind of blast hole loading structure, including blasthole, several explosives, several water bags, digital primer and
Encoder, several blastholes and several water bags are staggered in the blasthole, and institute is protruded into described digital primer one end
It states in blasthole, and is connect with the explosive, the digital primer other end is set to outside the blasthole, and is connected with the encoder
It connects.
As a further improvement of the above technical scheme, the water bag is filled between the adjacent explosive.
It as a further improvement of the above technical scheme, further include stemming, the stemming is fixedly arranged on one end of the blasthole,
The end seal of the blasthole to be closed.
The beneficial effects of the present invention are:
House slight dynamite construction method is worn under subway tunnel low coverage of the invention, is handed in the blasthole of blasthole apparatus structure
Mistake filling water bag and explosive reduce vibration and noise in blasting process by the hydraulic pressure demolition of water bag, while utilizing explosive
Guarantee the explosion dynamics in blasting process, be arranged by delay, blast working process is controlled, guarantees the efficiency of explosion,
Further, since vibration and noise are small, the time of dust removal by ventilation is needed to substantially reduce after explosion, to significantly improve the effect of construction
Rate.
Blast hole loading structure of the invention, including blasthole, several explosives, several water bags, digital primer and encoder, if
It does the blasthole and several water bags is staggered in the blasthole, described digital primer one end is protruded into the blasthole,
And connect with the explosive, the digital primer other end is set to outside the blasthole, and is connect with the encoder.Pass through water bag
With being arranged alternately for explosive, the high efficiency of the characteristics of combining low vibration, the low noise of water bag and explosive can guarantee
Under the premise of blasting efficiency, vibration when explosion is significantly reduced, the noise generated when explosion is reduced, explosion is safer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of blast hole loading structure of the invention；
Fig. 2 is the flow chart that house slight dynamite construction method is worn under subway tunnel low coverage of the invention.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
Other embodiments obtained, belong to the scope of protection of the invention under the premise of creative work.In addition, being related in patent
All connection/connection relationships, not singly refer to that component directly connects, and refer to can according to specific implementation situation, by addition or
Couple auxiliary is reduced, to form more preferably coupling structure.Each technical characteristic in the present invention, before not conflicting conflict
Putting can be with combination of interactions.
Fig. 1 is please referred to, blast hole loading structure of the invention includes blasthole 1, water bag 10, explosive 2, digital primer 3 and compiles
Code device and trigger (not shown).
Blasthole 1 is closed at one end, open at one end, is equipped with stemming 2 in 1 open at one end of blasthole, passes through the opening blasthole 1 of stemming 2
Mouth blocks, and several water bags 10 and several explosives 11 are filled in blasthole 1, it is preferred that several water bags 10 and several explosives 11
It is successively arranged alternately, in this way, using the hydraulic pressure demolition of water bag 10, can effectively reduce the noise generated when explosion when explosion
And vibration, while can have explosion dynamics when 11 explosion of explosive again.
3 one end of digital primer is set to inside blasthole 1, and is connect with explosive 2, and one end is stretched out outside blasthole 1, digital primer 3
It is electrically connected with encoder, trigger, encoder is also electrically connected with trigger, and trigger is used to control the detonation shape of digital primer 3
State, and then the explosion of the charge constitution is controlled, the ignition sequence of encoder delays time to control digital primer 3 is arranged in encoder
Delay time, after reaching the delay time, encoder controls trigger work, and then controls the explosion of blast hole loading structure.
In the present embodiment, encoder and trigger are the common encoder in explosion field and trigger, used electricity
Gas connection structure and program setting belong to the prior art, therefore, just repeat no more here.
Such as Fig. 2, the flow chart that house slight dynamite construction method is worn under subway tunnel low coverage of the invention is shown, including
Following steps.
S100, make blast hole loading structure, in the blasthole of blast hole loading structure successively staggeredly fill several water bags and
Several explosives, wherein it is preferred, water bag is filled at the end positions of blasthole.Certainly, according to the demand of practice of construction,
Blast hole loading structure can also be obtained by the way of buying, to make the time required for blast hole loading structure at saving.
S110 surveys construction site surrounding rock structure, designs blasting network structure according to the soil structure at scene.
S120 carries out test unwrapping wire, and drill according to unwrapping wire for the blasting network of design.
Explosive, water bag, digital primer, stemming are filled to each hole according to bore position and design charge constitution by S130
In position, after digital primer filling, encoder is drawn and connected to the primacord of each digital primer, carries out blasting network networking.
S140 carries out precisely delay setting to each blast hole loading structure by encoder, then carries out digital primer essence
Quasi- delay sequentially controls explosion.
S150 immediately begins to dust removal by ventilation after explosion completion, looks for top, just spray area surface concrete, then with firm
The country rock in this section of blast working region is firm, and carries out preliminary bracing.
S160 evaluates blasting effectiveness, if demolition effect is good, returns to S120 and initially enters next apply
Work circulation；If demolition effect is poor, returns to S100 and carry out charge constitution and blasting network optimization, recycled into next construction.
Preliminary bracing is carried out to this section of burst region, with guarantee this section of region earth formation it is firm, it is subsequent right to prevent
When lower section burst region blast working, the problem of causing this section of burst region that batice occurs.
It is recycled according to above-mentioned construction, and then gradually carries out and wear building dense group's comprehensive integration microseism control under urban subway tunnel
Blast working processed, until completing entire Tunnel Blasting construction task.
It is to be illustrated to presently preferred embodiments of the present invention, but the present invention is not limited to the embodiment above,
Those skilled in the art can also make various equivalent deformation or replacement on the premise of without prejudice to spirit of the invention, this
Equivalent deformation or replacement are all included in the scope defined by the claims of the present application a bit.
Claims (5)
1. wearing house slight dynamite construction method under a kind of subway tunnel low coverage, which comprises the steps of:
1) blast hole loading structure is designed, water bag, explosive are alternately filled in blasthole；
2) construction site soil structure is surveyed, blasting network structure is designed；
3) in-site measurement unwrapping wire is carried out, and is drilled according to unwrapping wire；
4) powder charge and blasting network networking are carried out according to bore position and design blast hole loading structure；
5) the accurate delaying blasting time of each digital primer, successively explosion are set；
6) dust removal by ventilation looks for top and just sprays area surface concrete；
7) preliminary bracing is carried out；
8) demolition effect is evaluated: if demolition effect is good, returns to step 3), initially enter next construction circulation；
If demolition effect is poor, step 1) is returned to, carries out blast hole loading structure and blasting network optimization.
2. wearing house slight dynamite construction method under subway tunnel low coverage according to claim 1, it is characterised in that: adjacent
The water bag is filled between the explosive, to reduce blasting dust and blasting vibration peak speed, is precisely controlled using digital primer
Short-delay blasting.
3. a kind of blasthole apparatus structure is applied for wearing house slight dynamite under subway tunnel low coverage as claimed in claim 1 or 2
Work method, it is characterised in that: including blasthole, several explosives, several water bags, digital primer and encoder, several blastholes
It is staggered with several water bags in the blasthole, described digital primer one end is protruded into the blasthole, and is fried with described
Medicine connection, the digital primer other end is set to outside the blasthole, and is connect with the encoder.
4. blast hole loading structure according to claim 3, it is characterised in that: be filled with the water between the adjacent explosive
Bag.
5. blast hole loading structure according to claim 3, it is characterised in that: further include stemming, the stemming is fixedly arranged on institute
The end seal of the blasthole is closed in the one end for stating blasthole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879048.2A CN109029175A (en) | 2018-08-03 | 2018-08-03 | House slight dynamite construction method and blast hole loading structure are worn under subway tunnel low coverage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810879048.2A CN109029175A (en) | 2018-08-03 | 2018-08-03 | House slight dynamite construction method and blast hole loading structure are worn under subway tunnel low coverage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109029175A true CN109029175A (en) | 2018-12-18 |
Family
ID=64649340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810879048.2A Pending CN109029175A (en) | 2018-08-03 | 2018-08-03 | House slight dynamite construction method and blast hole loading structure are worn under subway tunnel low coverage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109029175A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274528A (en) * | 2019-07-08 | 2019-09-24 | 黑龙江省龙建路桥第三工程有限公司 | A kind of fluidic compartment blasting method |
| CN111721173A (en) * | 2020-07-01 | 2020-09-29 | 贵州省公路工程集团有限公司 | Bridge group pile foundation shallow hole blasting air bag vibration reduction structure and construction method |
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| CN104895574A (en) * | 2015-05-06 | 2015-09-09 | 重庆工程职业技术学院 | Construction method for controlling large cross section tunnel blasting vibration velocity |
| CN105333778A (en) * | 2015-12-03 | 2016-02-17 | 北车建设工程有限责任公司 | Medium-deep hole large-section composite cut blasting structure and method |
| KR20160022177A (en) * | 2014-08-19 | 2016-02-29 | 한국철도기술연구원 | Tunnel excavation method for kerfing outer surface of tunnel for decreasing blasting vibration |
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| CN107643028A (en) * | 2017-09-15 | 2018-01-30 | 中建隧道建设有限公司 | House owed by a citizen weakness section blasting construction method is worn under shallow embedding railway tunnel |
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-
2018
- 2018-08-03 CN CN201810879048.2A patent/CN109029175A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274528A (en) * | 2019-07-08 | 2019-09-24 | 黑龙江省龙建路桥第三工程有限公司 | A kind of fluidic compartment blasting method |
| CN111721173A (en) * | 2020-07-01 | 2020-09-29 | 贵州省公路工程集团有限公司 | Bridge group pile foundation shallow hole blasting air bag vibration reduction structure and construction method |
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