CN109458889A - A kind of method of long distance tunnel explosion depositing dust - Google Patents
A kind of method of long distance tunnel explosion depositing dust Download PDFInfo
- Publication number
- CN109458889A CN109458889A CN201811500863.XA CN201811500863A CN109458889A CN 109458889 A CN109458889 A CN 109458889A CN 201811500863 A CN201811500863 A CN 201811500863A CN 109458889 A CN109458889 A CN 109458889A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- dust
- depositing dust
- long distance
- blasthole
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 108
- 238000000151 deposition Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004880 explosion Methods 0.000 title claims abstract description 21
- 229920000573 polyethylene Polymers 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000005422 blasting Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000012263 liquid product Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009423 ventilation Methods 0.000 abstract description 8
- 230000005641 tunneling Effects 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000003517 fume Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 230000037452 priming Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000001165 hydrophobic group Chemical group 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D49/00—Separating dispersed particles from gases, air or vapours by other methods
-
- 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
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Prevention Of Fouling (AREA)
Abstract
The present invention relates to tunnel dedusting technology fields, and in particular to a kind of method of long distance tunnel explosion depositing dust, comprising the following steps: igniting primer and the blasting charge are successively successively packed into the blasthole of tunnel tunnel face by step 1；Step 2 pours into depositing dust liquid in Polythene Bag, and sack is tightened with band；The depositing dust liquid includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 300-800:1；Step 3 places the Polythene Bag that step 2 ties in the side of the blasting charge, and Polythene Bag tying direction is fitted into blasthole towards blasthole bottom direction.The ventilation time that long distance tunnel tunneling process borehole blasting generates dust, blasting fume can be effectively reduced using the method for the present invention, ensure that long distance tunnel drilling depth is relatively deep, ventilation is unsmooth or the construction speed the in tighter duration tunnel.
Description
Technical field
The present invention relates to tunnel dedusting technology fields, and in particular to a kind of method of long distance tunnel explosion depositing dust.
Background technique
It is a kind of common method, especially long distance tunnel using Blasting Excavation currently, in set of tunneling construction,
Blasting Excavation has its advantage compared to other construction methods, is domestic using a kind of most construction methods.
A large amount of dusts can be generated during Blasting Excavation, tunnel dust settling is that various regions constructing tunnel cannot be neglected important ask
Topic, the raising with people to environmental awareness, the contradiction between depositing dust and construction become increasingly conspicuous, and in long distance tunnel, lead to
The unsmooth influence construction speed of wind is very universal phenomenon, and therefore, it is necessary to reduce toxic and harmful gas and dust to greatest extent
Generation, and explosion is the main reason for generating the above noxious products, it is therefore desirable to for noxious products generation propose it is effective
Processing method.
Summary of the invention
The technical problems to be solved by the present invention are: a kind of method of long distance tunnel explosion depositing dust, makes in Blasting Excavation
During quick depositing dust.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of long distance tunnel explosion depositing dust
Method, comprising the following steps:
Igniting primer and the blasting charge are successively successively packed into the blasthole of tunnel tunnel face by step 1；
Step 2 pours into depositing dust liquid in Polythene Bag, and sack is tightened with band；
The depositing dust liquid includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 300-
800:1；
Step 3 places the Polythene Bag that ties of step 2 in the side of the blasting charge, and Polythene Bag tying direction is towards blasthole bottom
Portion direction is fitted into blasthole.
The beneficial effects of the present invention are: the present invention forms depositing dust liquid, BT-210W suppression using BT-210W dust suppressant and water
Dust agent molecule will form on the surface of aqueous solution and closely align layer, and the surface molecules of water and air contact condition occur
Variation, contact area are substantially reduced, and cause the surface tension of water to reduce, simultaneously towards between the hydrophobic group and explosive dust of air
There is suction-operated, and dust is brought into water, so that dust is sufficiently humidified so as to, rapid descent.Using the drop of inventive formulation
Dirt liquid dust makes a decision the time no more than 22 points, is considerably shorter than divided 30 seconds using the dust of pure water time 45 that makes a decision.
Using the method for the present invention, the depositing dust liquid in dust settling pocket can effectively reduce long distance tunnel tunneling process borehole blasting production
The ventilation time of dusting soil, blasting fume ensure that long distance tunnel drilling depth is relatively deep, ventilation is unsmooth or the construction the in tighter duration tunnel
Progress.
Detailed description of the invention
Fig. 1 is the filling effect diagram of the method for the long distance tunnel explosion depositing dust of the specific embodiment of the invention；
Fig. 2 is the structural representation of the Polythene Bag of the method for the long distance tunnel explosion depositing dust of the specific embodiment of the invention
Figure；
Label declaration:
1, Polythene Bag；2, the blasting charge；3, igniting primer；4, detonator；5, detonator；6, depositing dust liquid；7, band.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
It is put into blasthole the most critical design of the present invention is: depositing dust liquid is poured into Polythene Bag, depositing dust liquid includes matter
Than the water and BT-210W dust suppressant that are 300-800:1, greatly reduce dust makes a decision the time amount, improves work efficiency.
Referring to Fig.1 and 2, a kind of method of long distance tunnel explosion depositing dust, comprising the following steps:
Igniting primer 3 and the blasting charge 2 are successively successively packed into the blasthole of tunnel tunnel face by step 1；
Step 2 pours into depositing dust liquid 6 in Polythene Bag 1, and sack band 7 tightens；
The depositing dust liquid 6 includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 300-
800:1；
Step 3 places the Polythene Bag 1 that ties of step 2 in the side of the blasting charge 2, and 1 tying direction of Polythene Bag is towards blasthole
Bottom direction is fitted into blasthole.
As can be seen from the above description, the beneficial effects of the present invention are: the present invention is using BT-210W dust suppressant and water composition drop
Dirt liquid 6, BT-210W dust suppression agent molecule will form on the surface of aqueous solution and closely align layer, make the surface molecules of water with
Air contact condition changes, and contact area is substantially reduced, and causes the surface tension of water to reduce, simultaneously towards the hydrophobic of air
There is suction-operated between base and explosive dust, and dust is brought into water, so that dust is sufficiently humidified so as to, rapid descent.It adopts
The time is made a decision no more than 22 points with 6 dust of depositing dust liquid of inventive formulation, is considerably shorter than divided using the dust of pure water time 45 that makes a decision
30 seconds.
Using the method for the present invention, the depositing dust liquid 6 in dust settling pocket can effectively reduce long distance tunnel tunneling process borehole blasting
The ventilation time for generating dust, blasting fume, ensure that long distance tunnel drilling depth is relatively deep, ventilation is unsmooth or tighter the duration tunnel is applied
Work progress.
Further, in step 2, the mass ratio of the water and BT-210W dust suppressant is 500:1.
Seen from the above description, use 6 dust of depositing dust liquid of above-mentioned formula make a decision the time for 21 points 40 seconds, considerably shorter than use
The dust of pure water time 45 that makes a decision divides 30 seconds.
Further, it is spaced apart between each blasting charge 2 by the Polythene Bag 1.
Further, the bag diameter of the Polythene Bag 1 is 38-40mm.
Further, the band 7 is plastic ties or iron wire.
Further, the step 1 specifically: igniting primer 3 is connected into upper detonator 4, the end of the detonator 4 connects
Detonator 5, then igniting primer 3 and the blasting charge 2 are successively successively packed into the blasthole of tunnel tunnel face.
Further, in step 2,6 volume of depositing dust liquid accounts for the 2/3 of 1 volume of Polythene Bag.
Embodiment 1
A kind of method of long distance tunnel explosion depositing dust, comprising the following steps:
Igniting primer 3 is connected upper detonator 4 by step 1, and the end of the detonator 4 connects upper detonator 5, then by priming
Packet 3 and the blasting charge 2 are successively successively packed into the blasthole of tunnel tunnel face；
Step 2 pours into depositing dust liquid 6 in Polythene Bag 1, and 6 volume of depositing dust liquid accounts for the 2/3 of 1 volume of Polythene Bag, bag
Mouth is tightened with band 7, and band 7 is plastic ties or iron wire；
The depositing dust liquid 6 includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 300:
1；
Step 3 places the Polythene Bag 1 that ties of step 2 in the side of the blasting charge 2, and 1 tying direction of Polythene Bag is towards blasthole
Bottom direction is fitted into blasthole, until blasthole is filled.
Add 1:300 BT-210W dust suppressant dust make a decision the time be 22 points 10 seconds.
Embodiment 2
A kind of method of long distance tunnel explosion depositing dust, comprising the following steps:
Igniting primer 3 is connected upper detonator 4 by step 1, and the end of the detonator 4 connects upper detonator 5, then by priming
Packet 3 and the blasting charge 2 are successively successively packed into the blasthole of tunnel tunnel face；
Step 2 pours into depositing dust liquid 6 in Polythene Bag 1, and 6 volume of depositing dust liquid accounts for the 2/3 of 1 volume of Polythene Bag, bag
Mouth is tightened with band 7, and band 7 is plastic ties or iron wire；
The depositing dust liquid 6 includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 500:
1；
Step 3 places the Polythene Bag 1 that ties of step 2 in the side of the blasting charge 2, and 1 tying direction of Polythene Bag is towards blasthole
Bottom direction is fitted into blasthole, until blasthole is filled.
The BT-210W dust suppressant of 1:500 is taken to reach optimal effect, when making a decision of the dust of pure water in this project experiment
Between for 45 points 30 seconds, add the BT-210W dust suppressant of 1:500 dust make a decision the time be 21 points 40 seconds.
Embodiment 3
A kind of method of long distance tunnel explosion depositing dust, comprising the following steps:
Igniting primer 3 is connected upper detonator 4 by step 1, and the end of the detonator 4 connects upper detonator 5, then by priming
Packet 3 and the blasting charge 2 are successively successively packed into the blasthole of tunnel tunnel face；
Step 2 pours into depositing dust liquid 6 in Polythene Bag 1, and the bag diameter of Polythene Bag 1 is 38-40mm, and 6 volume of depositing dust liquid accounts for
The 2/3 of 1 volume of Polythene Bag, sack band 7 tightens, and band 7 is plastic ties or iron wire；
The depositing dust liquid 6 includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 800:
1；
Step 3 places the Polythene Bag 1 that ties of step 2 in the side of the blasting charge 2, and 1 tying direction of Polythene Bag is towards blasthole
Bottom direction is fitted into blasthole, is spaced apart between each blasting charge 2 by the Polythene Bag 1.
Add 1:800 BT-210W dust suppressant dust make a decision the time be 22 points.
In conclusion the method for long distance tunnel explosion depositing dust provided by the invention, using BT-210W dust suppressant and water group
At depositing dust liquid, BT-210W dust suppression agent molecule will form on the surface of aqueous solution and closely align layer, make the surface molecules of water
It changes with air contact condition, contact area is substantially reduced, and causes the surface tension of water to reduce, simultaneously towards dredging for air
It is water base to have suction-operated between explosive dust, and dust is brought into water, so that dust is sufficiently humidified so as to, rapid descent.
Time is made a decision no more than 22 points using the depositing dust liquid dust of inventive formulation, is considerably shorter than divided using the dust of pure water time 45 that makes a decision
30 seconds.
Using the method for the present invention, the depositing dust liquid in dust settling pocket can effectively reduce long distance tunnel tunneling process borehole blasting production
The ventilation time of dusting soil, blasting fume ensure that long distance tunnel drilling depth is relatively deep, ventilation is unsmooth or the construction the in tighter duration tunnel
Progress.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (7)
1. a kind of method of long distance tunnel explosion depositing dust, which comprises the following steps:
Igniting primer and the blasting charge are successively successively packed into the blasthole of tunnel tunnel face by step 1；
Step 2 pours into depositing dust liquid in Polythene Bag, and sack is tightened with band；
The depositing dust liquid includes water and BT-210W dust suppressant, and the mass ratio of the water and BT-210W dust suppressant is 300-800:1；
Step 3 places the Polythene Bag that ties of step 2 in the side of the blasting charge, and Polythene Bag tying direction is towards blasthole bottom side
To being fitted into blasthole.
2. the method for long distance tunnel explosion depositing dust according to claim 1, which is characterized in that in step 2, the water and
The mass ratio of BT-210W dust suppressant is 500:1.
3. the method for long distance tunnel explosion depositing dust according to claim 1, which is characterized in that each blasting charge it
Between be spaced apart by the Polythene Bag.
4. the method for long distance tunnel explosion depositing dust according to claim 1, which is characterized in that the bag of the Polythene Bag
Diameter is 38-40mm.
5. the method for long distance tunnel explosion depositing dust according to claim 1, which is characterized in that the band is plastic ties
Or iron wire.
6. the method for long distance tunnel explosion depositing dust according to claim 1, which is characterized in that the step 1 specifically:
Igniting primer is connected into upper detonator, the end of the detonator connects upper detonator, then igniting primer and the blasting charge is successively successive
It is packed into the blasthole of tunnel tunnel face.
7. the method for long distance tunnel explosion depositing dust according to claim 1, which is characterized in that in step 2, the depositing dust
Liquid product accounts for the 2/3 of the Polythene Bag volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500863.XA CN109458889A (en) | 2018-12-10 | 2018-12-10 | A kind of method of long distance tunnel explosion depositing dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500863.XA CN109458889A (en) | 2018-12-10 | 2018-12-10 | A kind of method of long distance tunnel explosion depositing dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109458889A true CN109458889A (en) | 2019-03-12 |
Family
ID=65612797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811500863.XA Pending CN109458889A (en) | 2018-12-10 | 2018-12-10 | A kind of method of long distance tunnel explosion depositing dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109458889A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121577A (en) * | 2020-01-19 | 2020-05-08 | 昆明理工大学 | Method for quickly reducing dust of explosion water curtain of long-distance tunnel |
| CN113372879A (en) * | 2021-05-20 | 2021-09-10 | 北京科技大学 | Preparation and application methods of blasting smoke dust inhibitor for tunneling roadway |
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| CN204666052U (en) * | 2015-05-27 | 2015-09-23 | 中铁九局集团有限公司 | A kind of cavern depositing dust is except blasting arrangement of making an uproar |
| CN105043175A (en) * | 2015-07-07 | 2015-11-11 | 中铁十九局集团第二工程有限公司 | Water pressure blasting method used in tunnel construction |
| CN105066804A (en) * | 2015-07-16 | 2015-11-18 | 湖南辰州矿业有限责任公司 | Mine water stemming bag and application of mine water stemming bag in borehole blockage |
| CN105865283A (en) * | 2016-06-16 | 2016-08-17 | 中铁上海工程局集团有限公司 | Blasting dedusting method |
| CN207797903U (en) * | 2018-02-05 | 2018-08-31 | 温州鸿基矿山爆破器材有限公司 | A kind of water stemming bag |
| CN207980735U (en) * | 2018-02-05 | 2018-10-19 | 华能国际电力股份有限公司上海石洞口第二电厂 | A kind of ship unloaders dust suppression system |
-
2018
- 2018-12-10 CN CN201811500863.XA patent/CN109458889A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204666052U (en) * | 2015-05-27 | 2015-09-23 | 中铁九局集团有限公司 | A kind of cavern depositing dust is except blasting arrangement of making an uproar |
| CN105043175A (en) * | 2015-07-07 | 2015-11-11 | 中铁十九局集团第二工程有限公司 | Water pressure blasting method used in tunnel construction |
| CN105066804A (en) * | 2015-07-16 | 2015-11-18 | 湖南辰州矿业有限责任公司 | Mine water stemming bag and application of mine water stemming bag in borehole blockage |
| CN105865283A (en) * | 2016-06-16 | 2016-08-17 | 中铁上海工程局集团有限公司 | Blasting dedusting method |
| CN207797903U (en) * | 2018-02-05 | 2018-08-31 | 温州鸿基矿山爆破器材有限公司 | A kind of water stemming bag |
| CN207980735U (en) * | 2018-02-05 | 2018-10-19 | 华能国际电力股份有限公司上海石洞口第二电厂 | A kind of ship unloaders dust suppression system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121577A (en) * | 2020-01-19 | 2020-05-08 | 昆明理工大学 | Method for quickly reducing dust of explosion water curtain of long-distance tunnel |
| CN113372879A (en) * | 2021-05-20 | 2021-09-10 | 北京科技大学 | Preparation and application methods of blasting smoke dust inhibitor for tunneling roadway |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190312 |
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