CN112627872A - Early-stage supporting and broken stone conveying device in tunnel blasting state and construction method - Google Patents
Early-stage supporting and broken stone conveying device in tunnel blasting state and construction method Download PDFInfo
- Publication number
- CN112627872A CN112627872A CN202011320797.5A CN202011320797A CN112627872A CN 112627872 A CN112627872 A CN 112627872A CN 202011320797 A CN202011320797 A CN 202011320797A CN 112627872 A CN112627872 A CN 112627872A
- Authority
- CN
- China
- Prior art keywords
- tunnel
- cylinder
- inner cylinder
- barrel
- blasting
- 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.)
- Granted
Links
- 238000005422 blasting Methods 0.000 title claims abstract description 36
- 239000004575 stone Substances 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000002360 explosive Substances 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/08—Advancing mechanisms
-
- 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
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/14—Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
- E21F5/143—Fluid barriers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a preliminary bracing and gravel conveying device in a tunnel blasting state, which comprises an outer barrel matched with a tunnel in shape, wherein an inner barrel is lined in the outer barrel, an inner rail is arranged at the bottom of the outer barrel and is butted with an outer rail paved on the ground of the tunnel, an upper roller is arranged on the inner side wall of the outer barrel, a lower roller matched with the inner rail and the outer rail is arranged at the bottom of the inner barrel, the side wall of the inner barrel is matched with the upper roller, and a closed door is arranged at the rear side end of the inner barrel. The invention also relates to a construction method of the tunnel blasting state preliminary bracing and broken stone transportation device. The device and the method can effectively prevent dust from being filled in the tunnel for a long time, and can rapidly convey the stone formed by blasting out.
Description
Technical Field
The invention relates to a device for supporting and transporting broken stones in the early stage under the blasting state of a tunnel. The invention also relates to a construction method of the fore-end support and broken stone transportation device in the tunnel blasting state.
Background
A large amount of dust can be generated during tunnel blasting, and the dust exists in the air for a long time, so that workers cannot enter a tunnel to clean and transport stones formed after blasting. Moreover, the stones formed by blasting are scattered in a large range, and are difficult to clean and transport.
In order to solve the dust problem, a solution has been to introduce a spray head into the tunnel and to rapidly drop the dust by spraying, but the dust dispersion is not restricted, and the dust settling method has a very limited effect.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device for supporting and transporting broken stones in the early stage in a tunnel blasting state, which can quickly eliminate dust generated by blasting in the tunnel and quickly collect and transport the broken stones formed by blasting out of the tunnel. The technical problem to be solved by the invention is also to provide a construction method of the fore-end support and broken stone transportation device in the tunnel blasting state.
Therefore, the preliminary bracing and gravel conveying device in the tunnel blasting state comprises an outer barrel matched with a tunnel in shape, an inner barrel is lined in the outer barrel, an inner rail is arranged at the bottom of the outer barrel and is butted with an outer rail paved on the ground of the tunnel, an upper roller is arranged on the inner side wall of the outer barrel, a lower roller matched with the inner rail and the outer rail is arranged at the bottom of the inner barrel, the side wall of the inner barrel is matched with the upper roller, a closed door is arranged at the rear side end of the inner barrel, the outer barrel is provided with a plurality of inner barrels, and a rear bracing rod is arranged at the rear side of the.
Preferably, the outer cylinder is made of a high-strength metal material, the lower part of the outer side wall of the outer cylinder is provided with an outer roller, the outer roller rolls on the ground in the tunnel to advance, and the inner cylinder is made of a non-metal elastic material.
Preferably, the upper part of the inner cylinder is made of porous materials, the top wall of the inner side of the outer cylinder is provided with a water spraying opening, and water sprayed from the water spraying opening falls into the inner cylinder.
Preferably, a locking mechanism is arranged at the position, corresponding to the inner cylinder, of the hinged lower end of the upper end of the closed door and the inner cylinder.
Preferably, the outer cylinder is provided with a driving motor, and the driving motor drives the outer roller.
The invention also provides a construction method of the fore support and gravel transportation device in the tunnel blasting state, which comprises the following steps:
A. moving the outer cylinder with the inner cylinder to a blasting position at the bottom end of the tunnel, and enabling the opening at the front end of the inner cylinder to be aligned to and cover the blasting wall surface;
B. drilling an explosive embedding hole in the bottom wall of the tunnel, and embedding the explosive into the embedding hole;
C. closing a closing door at the rear end of the inner cylinder;
D. detonating the explosive, and simultaneously starting a water spraying port on the outer cylinder to spray water for 10-20 minutes;
E. the inner cylinder is withdrawn from the outer cylinder and conveyed to the outside of the tunnel through the outer track, and stones are unloaded;
F. and D, conveying the other inner cylinder into the outer cylinder, and performing the operations of the steps A-E again.
The invention has the technical effects that:
1) the device and the method can effectively seal the dust in the inner barrel by using the inner barrel, and quickly reduce the dust by using the water sprayed in the inner barrel, so that the dust is prevented from being filled in the tunnel for a long time, workers can enter the tunnel operation in a short time after blasting, and the construction progress can be greatly accelerated;
2) the blasting position is covered by the inner cylinder, so that stones formed by blasting can directly enter the inner cylinder, the time for collecting stones is saved, and the stones formed by blasting can be rapidly transported out;
3) the device of the invention adopts a structure that the inner cylinder is sleeved in the outer cylinder, the inner cylinder can protect the outer cylinder and prevent the outer cylinder as a main framework from being damaged, and the inner cylinders can be configured as a plurality of easily-damaged products and are made of low-cost non-metallic materials, thereby realizing rapid dust fall and rapid stone transportation in a low-cost mode.
Drawings
Fig. 1 is a schematic structural sectional view of a fore-support and crushed stone transportation device in a tunnel blasting state provided by the invention.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic end view of the forepoling and gravel transport apparatus of fig. 1 in a tunnel blasting state.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1-3, the preliminary bracing and gravel transporting device in a tunnel blasting state provided by the invention comprises an outer cylinder 1 matched with a tunnel shape, a rear bracing rod is arranged at the rear side of the outer cylinder, an inner cylinder 2 is lined in the outer cylinder 1, an inner rail 3 is arranged at the bottom of the outer cylinder 1, the inner rail 3 is butted with an outer rail 4 laid on the ground of the tunnel, an upper roller 5 is arranged on the inner side wall of the outer cylinder 1, rollers are generally arranged on the side surface of the outer cylinder, a lower roller 6 matched with the inner rail 3 and the outer rail 4 is arranged at the bottom of the inner cylinder 2, the side wall of the inner cylinder 2 is matched with the upper roller 5, a closed door 7 is arranged at the rear side end of the inner cylinder 2, the outer cylinder 1 is provided with a plurality of inner cylinders 2, the. The upper end of the sealing door 7 is hinged with the inner cylinder 2, the lower end of the sealing door corresponds to the inner cylinder 2, a locking mechanism is arranged at the corresponding position of the sealing door 7 and the inner cylinder 2, the locking mechanism comprises a locking plate 8 and a locking lug plate 9 which are respectively arranged at the outer ends of the sealing door 7 and the inner cylinder, the locking plate 8 is provided with an insertion hole, the locking lug plate 9 is provided with a locking hole, the locking lug plate 9 penetrates through the insertion hole in the locking plate 8, and a locking rod 10 of a lockset penetrates through the locking. The outer cylinder 1 is made of a high-strength metal material, for example, steel, an outer roller 15 is arranged on the lower portion of the outer side wall of the outer cylinder 1, the outer roller 15 rolls on the ground in the tunnel 11, the outer cylinder 1 is provided with a driving motor 12, the driving motor 12 drives the outer roller 15, and the inner cylinder 2 is made of a non-metal elastic material.
Referring to fig. 1-3, in order to realize rapid dust fall, the upper part of the inner cylinder 2 is made of a porous material, the porous material can be high-strength plastic densely distributed with holes, a water spray opening 13 is arranged on the top wall of the inner side of the outer cylinder, the water spray opening 13 is communicated with a water channel in the outer cylinder 1, the water channel in the outer cylinder 1 is connected with a water supply system outside a tunnel through a water pipe, and water sprayed from the water spray opening 13 falls into the inner cylinder 2.
The invention also provides a construction method of the fore support and gravel transportation device in the tunnel blasting state, which comprises the following steps:
A. moving the outer cylinder 1 with the inner cylinder 2 to a blasting position at the bottom end of the tunnel 11, and enabling the front end opening of the inner cylinder 2 to be aligned with and cover a blasting wall surface;
B. drilling an explosive embedding hole in the bottom wall of the tunnel 11, and embedding the explosive into the embedding hole 14;
C. a closing door 7 at the rear end of the inner cylinder 2 is closed;
D. detonating the explosive, and simultaneously starting a water spraying port 13 on the outer cylinder 1 to spray water for 10-20 minutes;
E. the inner cylinder 2 is withdrawn from the outer cylinder 1 and conveyed to the outside of the tunnel through the outer track 4, and stones are unloaded;
F. the other inner cylinder 2 is transported into the outer cylinder 1, and the operations of steps A-E are performed again.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. The utility model provides a fore-stage support and rubble conveyer under tunnel blasting state, characterized by: including the urceolus that matches with the tunnel shape, the urceolus inside lining has the inner tube, and the urceolus bottom has the inner rail, the inner rail with lay with the outer track butt joint on tunnel ground, be provided with the gyro wheel on the urceolus inside wall, the inner tube bottom is provided with the lower gyro wheel that matches with inner rail and outer track, inner tube lateral wall and last gyro wheel cooperation, the side has the closed door behind the inner tube, the urceolus disposes a plurality of inner tubes, and the urceolus rear side is provided with the back bracing piece.
2. The device for forepoling and gravel transportation in a tunnel blasting state of claim 1, wherein: the outer barrel is made of a high-strength metal material, the lower portion of the outer side wall of the outer barrel is provided with an outer roller, the outer roller rolls on the ground in the tunnel to advance, and the inner barrel is made of a non-metal elastic material.
3. The device of claim 2 for forepoling and gravel transportation in a tunnel blasting state, wherein: the upper part of the inner cylinder is made of porous materials, the top wall of the inner side of the outer cylinder is provided with a water spraying opening, and water sprayed from the water spraying opening falls into the inner cylinder.
4. The device for forepoling and gravel transportation in a tunnel blasting state according to claim 1, 2 or 3, wherein: and a locking mechanism is arranged at the position, corresponding to the inner cylinder, of the hinged lower end of the upper end of the closed door and the inner cylinder.
5. The device of claim 2 for forepoling and gravel transportation in a tunnel blasting state, wherein: the outer barrel is provided with a driving motor, and the driving motor drives the outer roller.
6. A method of constructing a preliminary bracing and gravel carrier in a tunnel blasting state as claimed in claim 1, 2, 3 or 5, wherein: the method comprises the following steps:
A. moving the outer cylinder with the inner cylinder to a blasting position at the bottom end of the tunnel, and enabling the opening at the front end of the inner cylinder to be aligned to and cover the blasting wall surface;
B. drilling an explosive embedding hole in the bottom wall of the tunnel, and embedding the explosive into the embedding hole;
C. closing a closing door at the rear end of the inner cylinder;
D. detonating the explosive, and simultaneously starting a water spraying port on the outer cylinder to spray water for 10-20 minutes;
E. the inner cylinder is withdrawn from the outer cylinder and conveyed to the outside of the tunnel through the outer track, and stones are unloaded;
F. and D, conveying the other inner cylinder into the outer cylinder, and performing the operations of the steps A-E again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011320797.5A CN112627872B (en) | 2020-11-23 | 2020-11-23 | Early-stage supporting and broken stone transporting device in tunnel blasting state and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011320797.5A CN112627872B (en) | 2020-11-23 | 2020-11-23 | Early-stage supporting and broken stone transporting device in tunnel blasting state and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112627872A true CN112627872A (en) | 2021-04-09 |
| CN112627872B CN112627872B (en) | 2024-01-19 |
Family
ID=75303573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011320797.5A Active CN112627872B (en) | 2020-11-23 | 2020-11-23 | Early-stage supporting and broken stone transporting device in tunnel blasting state and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112627872B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8809752D0 (en) * | 1987-04-24 | 1988-06-02 | Gta Gruben Transport Ausbautec | Tunnelling chamber |
| JP2005054364A (en) * | 2003-08-01 | 2005-03-03 | Air Builder:Kk | Protection method for blasting or the like, tunnel excavation method and protection device for blasting or the like |
| CN102146795A (en) * | 2011-02-24 | 2011-08-10 | 闻建明 | Explosive shield machine |
| KR20120077933A (en) * | 2010-12-31 | 2012-07-10 | 코오롱글로벌 주식회사 | Truck for conveying muck |
| CN103628893A (en) * | 2013-11-19 | 2014-03-12 | 柴敏霞 | Drilling and blasting shield machine |
| JP2015068042A (en) * | 2013-09-30 | 2015-04-13 | サーキュラーメンテナンス株式会社 | Blast sound deadening method and blast sound deadening mechanism |
| CN106382120A (en) * | 2016-09-14 | 2017-02-08 | 中石化石油工程技术服务有限公司 | Detonating tunneling pipe-jacking construction method |
| CN107923243A (en) * | 2015-07-28 | 2018-04-17 | 安德烈·范·戴克 | Tunnel excavator |
| CN207315446U (en) * | 2017-09-27 | 2018-05-04 | 中国水利水电第十四工程局有限公司 | A kind of Tunnel Blasting protective device |
| CN209855856U (en) * | 2019-03-15 | 2019-12-27 | 广西大学 | Adjustable blasting quilt device for tunnel blasting construction |
| CN111792298A (en) * | 2020-05-25 | 2020-10-20 | 温州大学 | Stone conveying mechanism in tunnel drilling and blasting engineering |
-
2020
- 2020-11-23 CN CN202011320797.5A patent/CN112627872B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8809752D0 (en) * | 1987-04-24 | 1988-06-02 | Gta Gruben Transport Ausbautec | Tunnelling chamber |
| JP2005054364A (en) * | 2003-08-01 | 2005-03-03 | Air Builder:Kk | Protection method for blasting or the like, tunnel excavation method and protection device for blasting or the like |
| KR20120077933A (en) * | 2010-12-31 | 2012-07-10 | 코오롱글로벌 주식회사 | Truck for conveying muck |
| CN102146795A (en) * | 2011-02-24 | 2011-08-10 | 闻建明 | Explosive shield machine |
| JP2015068042A (en) * | 2013-09-30 | 2015-04-13 | サーキュラーメンテナンス株式会社 | Blast sound deadening method and blast sound deadening mechanism |
| CN103628893A (en) * | 2013-11-19 | 2014-03-12 | 柴敏霞 | Drilling and blasting shield machine |
| CN107923243A (en) * | 2015-07-28 | 2018-04-17 | 安德烈·范·戴克 | Tunnel excavator |
| CN106382120A (en) * | 2016-09-14 | 2017-02-08 | 中石化石油工程技术服务有限公司 | Detonating tunneling pipe-jacking construction method |
| CN207315446U (en) * | 2017-09-27 | 2018-05-04 | 中国水利水电第十四工程局有限公司 | A kind of Tunnel Blasting protective device |
| CN209855856U (en) * | 2019-03-15 | 2019-12-27 | 广西大学 | Adjustable blasting quilt device for tunnel blasting construction |
| CN111792298A (en) * | 2020-05-25 | 2020-10-20 | 温州大学 | Stone conveying mechanism in tunnel drilling and blasting engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112627872B (en) | 2024-01-19 |
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