CN215949555U - Dust fall construction structures in tunnel construction hole - Google Patents
Dust fall construction structures in tunnel construction hole Download PDFInfo
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- CN215949555U CN215949555U CN202122488674.9U CN202122488674U CN215949555U CN 215949555 U CN215949555 U CN 215949555U CN 202122488674 U CN202122488674 U CN 202122488674U CN 215949555 U CN215949555 U CN 215949555U
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Abstract
The utility model provides a dust-fall construction structure in a tunnel construction tunnel, which comprises a construction tunnel, wherein the construction tunnel inwards sequentially comprises two lining sections, a primary support section and a construction working face, water supply pipes are arranged on arch walls on two sides of the two lining sections and the primary support section, a distance is reserved between each water supply pipe and the construction working face, a plug is arranged at one end, facing the inside of the construction tunnel, of each water supply pipe, a valve is arranged at the other end of each water supply pipe, a plurality of high-pressure mist spray heads are distributed on each water supply pipe, and the high-pressure mist spray heads are upward and inclined oppositely. The utility model has simple structure, can be prolonged along with the expansion of the tunnel and is convenient to operate; the dust content in the air in the tunnel is effectively reduced, the air quality is improved, and the harm to construction operators is reduced; in addition, the high-pressure mist spray nozzle can also be used for curing the two-lining concrete with the two lining sections, so that the water consumption is not obviously increased, and the resources are saved.
Description
Technical Field
The utility model relates to the technical field of dust fall in tunnel construction; in particular to a dust fall construction structure in a tunnel construction hole.
Background
In the tunnel engineering construction, the operating space is limited in the tunnel, and the air is not circulated, and drilling operation sediment shipment operation, spray concrete operation etc. all can produce a large amount of raise dusts in the tunnel, cause the air quality poor. The conventional solution is that a fan is arranged at the opening of the hole to supply air into the hole, so that the air in the hole flows to improve the air quality in the hole, but the fan only can play a role in reducing the content of toxic and harmful gases in the air in the hole and cannot reduce the dust in the air. And air flow also is unfavorable for the raise dust to subside, and the raise dust spreads each position of tunnel under the effect of air current to long-time gathering in the tunnel, the operation personnel work in the tunnel that contains the raise dust for a long time, are unfavorable for healthily.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a dust fall construction structure in a tunnel construction hole.
The utility model is realized by the following technical scheme.
The utility model provides a dust-fall construction structure in a tunnel construction tunnel, which comprises a construction tunnel, wherein the construction tunnel inwards sequentially comprises two lining sections, a primary support section and a construction face, water supply pipes are arranged on arch walls on two sides of the two lining sections and the primary support section, a distance is reserved between each water supply pipe and the construction face, one end, facing the inside of the construction tunnel, of each water supply pipe is provided with a plug, the other end of each water supply pipe is provided with a valve, a plurality of high-pressure mist spray heads are distributed on each water supply pipe, and the high-pressure mist spray heads are upwards and oppositely inclined.
The distance between the nozzles arranged on the water supply pipes of the two lining sections is larger than that between the nozzles arranged on the water supply pipes of the primary support section.
The distance between the high-pressure mist spray heads arranged on the water supply pipe of the two lining sections is larger than that between the high-pressure mist spray heads arranged on the water supply pipe of the primary support section.
The distance between the high-pressure mist spray heads arranged on the water supply pipe of the two lining sections is 10-20 m.
The distance between the high-pressure mist spray nozzles arranged on the water supply pipe of the primary support section is 5-10 m.
The distance between the plug and the construction face is 30 m.
The size of the water supply pipe is a quartering pipe.
The high pressure mist spray nozzle forms an included angle of 20-30 degrees with the horizontal direction.
The utility model has the beneficial effects that:
the utility model has simple structure, can be prolonged along with the expansion of the tunnel and is convenient to operate; the dust content in the air in the tunnel is effectively reduced, the air quality is improved, and the harm to construction operators is reduced; in addition, the high-pressure mist spray nozzle can also be used for curing the two-lining concrete with the two lining sections, so that the water consumption is not obviously increased, and the resources are saved.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Fig. 2 is an axial structural view of the present invention.
In the figure: 1-two liner segments; 2-primary support section; 3-constructing a tunnel face; 4-a water supply pipe; 5-plug; 6-high pressure mist spray head; 7-valve.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in FIGS. 1-2, the structure of the present invention is schematically illustrated:
the utility model provides a dust-fall construction structure in a tunnel construction tunnel, which comprises a construction tunnel, wherein the construction tunnel inwards sequentially comprises two lining sections 1, a primary support section 2 and a construction tunnel face 3, water supply pipes 4 are arranged on arch walls on two sides of the two lining sections 1 and the primary support section 2, a distance is reserved between the water supply pipes 4 and the construction tunnel face 3, one ends of the water supply pipes 4 facing the inside of the construction tunnel are provided with plugs 5, the other ends of the water supply pipes are provided with valves 7, a plurality of high-pressure mist spray nozzles 6 are distributed on the water supply pipes 4, and the high-pressure mist spray nozzles 6 face upwards and are inclined oppositely.
The principle is as follows: when in use, one end of the valve 7 of the water supply pipe 4 is connected with a high-pressure water source, and then the valve 7 controls the high-pressure mist spray nozzle 6 to spray water or not, thereby effectively reducing the dust content in the air in the hole; the specific opening and closing time can be continuously opened or opened during and after construction of each procedure according to actual construction requirements. Along with the tunneling of the construction tunnel, the plug 5 can be detached, so that the water supply pipe 4 can be continuously lengthened and the high-pressure mist spray head 6 is arranged, the whole structure is unchanged in the whole construction process, and the water supply pipe can be extended along with the tunnel. The high-pressure water source can be from a water pump or a water source at a higher position, and the details are not repeated as the common knowledge.
The utility model has simple structure, can be prolonged along with the expansion of the tunnel and is convenient to operate; the dust content in the air in the tunnel is effectively reduced, the air quality is improved, and the harm to construction operators is reduced; in addition, the high-pressure mist spray nozzle 6 can also cure the second lining concrete finished by the second lining section 1, so that the water consumption is not obviously increased, and the resources are saved.
The distance between the high-pressure mist spray nozzles 6 arranged on the water supply pipes 4 of the two lining sections 1 is larger than that between the high-pressure mist spray nozzles 6 arranged on the water supply pipes 4 of the primary support section 2. The distance between the primary support section 2 and the dust generation position is short, so that the dust falling speed is improved conveniently.
The distance between the high-pressure mist spray nozzles 6 arranged on the water supply pipe 4 of the two lining sections 1 is 10-20 m.
The distance between the high-pressure mist spray nozzles 6 arranged on the water supply pipe 4 of the primary support section 2 is 5-10 m.
Along with the construction, when the primary support section 2 gradually finishes two linings, only the high-pressure mist spray nozzles 6 need to be detached at intervals and plugged, and the operation is convenient.
The distance between the plug 5 and the construction tunnel face 3 is 30 m. The construction machinery is prevented from rubbing the water supply pipe 4 or the plug 5, and meanwhile, the machinery is prevented from being directly sprayed by spraying for a long time to influence the performance of electromechanical equipment.
The size of the water supply pipe 4 is a quartering pipe.
The high pressure mist spray nozzle 6 forms an included angle of 20 degrees to 30 degrees with the horizontal direction. Under the angle, the fastest dust removal speed can be achieved.
Claims (7)
1. The utility model provides a dust fall construction structures in tunnel construction hole which characterized in that: including the construction tunnel, the construction tunnel inwards includes two lining sections (1), preliminary bracing section (2), construction face (3) in proper order, install on the arch wall of two lining sections (1), preliminary bracing section (2) both sides feed pipe (4), there is the distance between feed pipe (4) and construction face (3), feed pipe (4) are equipped with end cap (5) towards the one end in the construction tunnel, the other end is equipped with valve (7), it has a plurality of high pressure vaporific shower nozzles (6) to distribute on feed pipe (4), high pressure vaporific shower nozzle (6) up and slope in opposite directions.
2. The dust fall construction structure in a tunnel construction hole according to claim 1, characterized in that: the distance between the high-pressure mist spray nozzles (6) arranged on the water supply pipes (4) of the two lining sections (1) is larger than that between the high-pressure mist spray nozzles (6) arranged on the water supply pipes (4) of the primary support section (2).
3. The dust fall construction structure in tunnel construction hole of claim 2, characterized in that: the distance between the high-pressure mist spray nozzles (6) arranged on the water supply pipe (4) of the two lining sections (1) is 10-20 m.
4. The dust fall construction structure in tunnel construction hole of claim 2, characterized in that: the distance between the high-pressure mist spray nozzles (6) arranged on the water supply pipe (4) of the primary support section (2) is 5-10 m.
5. The dust fall construction structure in a tunnel construction hole according to claim 1, characterized in that: the distance between the plug (5) and the construction face (3) is 30 m.
6. The dust fall construction structure in a tunnel construction hole according to claim 1, characterized in that: the size of the water supply pipe (4) is a quartering pipe.
7. The dust fall construction structure in a tunnel construction hole according to claim 1, characterized in that: the high-pressure mist spray nozzle (6) forms an included angle of 20-30 degrees with the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122488674.9U CN215949555U (en) | 2021-10-15 | 2021-10-15 | Dust fall construction structures in tunnel construction hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122488674.9U CN215949555U (en) | 2021-10-15 | 2021-10-15 | Dust fall construction structures in tunnel construction hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215949555U true CN215949555U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122488674.9U Active CN215949555U (en) | 2021-10-15 | 2021-10-15 | Dust fall construction structures in tunnel construction hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215949555U (en) |
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2021
- 2021-10-15 CN CN202122488674.9U patent/CN215949555U/en active Active
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