CN204312086U - Tunnel ventilation accessory channel and main hole intersect integral structure - Google Patents
Tunnel ventilation accessory channel and main hole intersect integral structure Download PDFInfo
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- CN204312086U CN204312086U CN201420767677.3U CN201420767677U CN204312086U CN 204312086 U CN204312086 U CN 204312086U CN 201420767677 U CN201420767677 U CN 201420767677U CN 204312086 U CN204312086 U CN 204312086U
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- main hole
- accessory channel
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- air draft
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Abstract
The utility model is specially a kind of tunnel ventilation accessory channel and main hole and intersects integral structure, solves on existing ventilation accessory channel and there is the comparatively large and problem of ventilation effect difference of difficulty of construction across main hole.Tunnel ventilation accessory channel and main hole intersect integral structure, comprise main hole, smoke vent, the air draft connection roadway that is communicated with inclined shaft, main hole is outside equipped with excavation hole, the sidewall in main hole is provided with concrete diaphragm, excavation hole is communicated with air draft connection roadway with smoke vent with the cavity that concrete diaphragm surrounds, and is provided with the exhast duct be communicated with both between air draft connection roadway with main hole.The utility model reasonable in design is reliable, adopts ventilation accessory channel and main hole transposition section integrated structure design, can avoid the shortcoming of straddle type, reduces the accessory channel gradient and length, and construction is simple, shortens the about half engineering time, saves construction cost.
Description
Technical field
The utility model relates to the layout design in accessory channel and main hole, is specially a kind of tunnel ventilation accessory channel and main hole and intersects integral structure.
Background technology
During Tunnel Design, need design ventilation accessory channel in order to ventilate in hole, in the design of ventilation accessory channel, often can run into the situation that main hole crossed over by accessory channel; For considering safety requirements, arrange the smoke evacuation of discharge flue as opposite side tunnel disaster scenarios it, smoke vent must be crossed over the main hole of opposite side and connect with its air draft connecting taxiway.
Current design is all be connected on ventilation accessory channel across the main hole of opposite side thus with the ventilation connecting taxiway of inclined shaft, and this design increases length and the gradient of ventilation accessory channel, and construction and excavation difficulty is very large, construction ventilation weak effect.
Summary of the invention
There is the comparatively large and problem of ventilation effect difference of difficulty of construction in order to solve on existing ventilation accessory channel across main hole in the utility model, provides a kind of tunnel ventilation accessory channel and main hole and intersect integral structure.
The utility model adopts following technical scheme to realize: tunnel ventilation accessory channel and main hole intersect integral structure, comprise main hole, smoke vent, the air draft connection roadway that is communicated with inclined shaft, main hole is outside equipped with excavation hole, the sidewall in main hole is provided with concrete diaphragm, excavation hole is communicated with air draft connection roadway with smoke vent with the cavity that concrete diaphragm surrounds, and is provided with the exhast duct be communicated with both between air draft connection roadway with main hole.
When ventilation accessory channel intersects with main hole, adopt and main hole is expanded into excavation hole, apply concrete diaphragm again and make tunnel Internal periphery section, the cavity surrounded in excavation hole and concrete diaphragm is as accessory channel, accessory channel answers plane orthogonal to intersect with main hole, accessory channel absolute altitude ventilates or discharges fume to determine according to concrete accessory channel and being beneficial to of tunnel, design elevation should higher than main hole, preferably substantially the same with main hole absolute altitude come convenient construction, overcome on existing ventilation accessory channel and there is difficulty of construction comparatively greatly and the problem of ventilation effect difference across main hole.
The utility model reasonable in design is reliable, adopts ventilation accessory channel and main hole transposition section integrated structure design, can avoid the shortcoming of straddle type, reduces the accessory channel gradient and length, and construction is simple, shortens the about half engineering time, saves construction cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: the main hole of 1-, 2-smoke vent, 3-inclined shaft, 4-air draft connection roadway, 5-excavates hole, 6-concrete diaphragm, 7-exhast duct.
Detailed description of the invention
Tunnel ventilation accessory channel and main hole intersect integral structure, comprise main hole 1, smoke vent 2, the air draft connection roadway 4 that is communicated with inclined shaft 3, main hole 1 is outside equipped with excavation hole 5, the sidewall in main hole 1 is provided with concrete diaphragm 6, excavation hole 5 is communicated with air draft connection roadway 4 with smoke vent 2 with the cavity that concrete diaphragm 6 surrounds, and is provided with the exhast duct 7 be communicated with both between air draft connection roadway 4 with main hole 1.
In specific implementation process, the cavity size that excavation hole 5 and concrete diaphragm 6 surround is determined according to tunnel ventilation calculation requirement area, and excavation hole 5 inwall is provided with composite lining structure, and the thickness of concrete diaphragm 6 is 50cm.
Claims (1)
1. a tunnel ventilation accessory channel and main hole intersect integral structure, comprise main hole (1), smoke vent (2), the air draft connection roadway (4) that is communicated with inclined shaft (3), it is characterized in that: main hole (1) is outside equipped with excavation hole (5), the sidewall in main hole (1) is provided with concrete diaphragm (6), excavation hole (5) is communicated with air draft connection roadway (4) with smoke vent (2) with the cavity that concrete diaphragm (6) surrounds, and is provided with the exhast duct (7) be communicated with both between air draft connection roadway (4) with main hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767677.3U CN204312086U (en) | 2014-12-09 | 2014-12-09 | Tunnel ventilation accessory channel and main hole intersect integral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767677.3U CN204312086U (en) | 2014-12-09 | 2014-12-09 | Tunnel ventilation accessory channel and main hole intersect integral structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312086U true CN204312086U (en) | 2015-05-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420767677.3U Active CN204312086U (en) | 2014-12-09 | 2014-12-09 | Tunnel ventilation accessory channel and main hole intersect integral structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948217A (en) * | 2015-07-21 | 2015-09-30 | 招商局重庆交通科研设计院有限公司 | Air duct structure for underground ventilation system overpassing main hole of tunnel |
| CN106437743A (en) * | 2016-08-31 | 2017-02-22 | 中铁第四勘察设计院集团有限公司 | Connecting passageway between upper tunnel and lower tunnel |
-
2014
- 2014-12-09 CN CN201420767677.3U patent/CN204312086U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948217A (en) * | 2015-07-21 | 2015-09-30 | 招商局重庆交通科研设计院有限公司 | Air duct structure for underground ventilation system overpassing main hole of tunnel |
| CN106437743A (en) * | 2016-08-31 | 2017-02-22 | 中铁第四勘察设计院集团有限公司 | Connecting passageway between upper tunnel and lower tunnel |
| CN106437743B (en) * | 2016-08-31 | 2019-02-01 | 中铁第四勘察设计院集团有限公司 | Service channel between upper and lower tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |