CN208184766U - A kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device - Google Patents
A kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device Download PDFInfo
- Publication number
- CN208184766U CN208184766U CN201820289097.6U CN201820289097U CN208184766U CN 208184766 U CN208184766 U CN 208184766U CN 201820289097 U CN201820289097 U CN 201820289097U CN 208184766 U CN208184766 U CN 208184766U
- Authority
- CN
- China
- Prior art keywords
- smoke
- shield
- branch pipe
- vehicle driving
- smoke evacuation
- 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.)
- Active
Links
Abstract
The utility model relates to Impacts Evaluation of Urban Tunnel, more particularly to a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device, the road tunnel includes shield lower layer vehicle driving passage and shield upper layer vehicle driving passage, it is characterized in that civil engineering Smoke guidance tape is arranged at the top of the vehicle driving passage of shield upper layer, civil engineering smoke duct is formed above civil engineering Smoke guidance tape；The setting smoke evacuation branch pipe access port at the civil engineering Smoke guidance tape bracket, shield lower layer vehicle driving passage are connected to by smoke outlet with smoke evacuation branch pipe, and the end for branch pipe of discharging fume is connect with smoke evacuation branch pipe access port.Its advantage is that not only having met effective smoke evacuation demand of the upper and lower layer vehicle driving passage of shield, but also meets the needs of tunnel pipe space and shield upper and lower level emergency staircase arrangement.In addition, the mechanical smoke extraction device convenient construction, not only has and resist shield axial displacement ability, but also has the ability for resisting shield radial displacement.The utility model can effectively promote the space efficiency utilization of shield tunnel, have stronger practicability.
Description
Technical field
The utility model relates to Impacts Evaluation of Urban Tunnel, and in particular to a kind of mechanical smoke extraction for overlength Impacts Evaluation of Urban Tunnel
Device, suitable for 15m shield diameter, two-way six-lane, current car overlength Impacts Evaluation of Urban Tunnel.
Background technique
Overlength Impacts Evaluation of Urban Tunnel refers to that closing segment length is greater than the tunnel of 5000m.For 15m shield diameter, two-way
The overlength Impacts Evaluation of Urban Tunnel of six-lane, current car, fire-fighting smoke exhaust system set-up mode experienced three developing stage.
First stage is to carry out fire control smoke exhausting using lateral smoke evacuation system；Second stage is to be arranged using the longitudinal smoke evacuation system of segmentation
Cigarette；Phase III is to be discharged fume using longitudinal smoke evacuation system binding key smoke evacuation system.It is longitudinal for the segmentation of second stage
Smoke evacuation system set-up mode, research achievement show that the length suitable for fire and smoke spread in tunnel is not greater than the tunnel of 3000m.
Therefore for overlength Impacts Evaluation of Urban Tunnel, when smoke shaft can not flexible setting when, longitudinal smoke evacuation system binding key smoke evacuation system
The fire-fighting smoke exhaust system set-up mode of system becomes universal selection.
Shield tunnel smoke evacuation, the smoke evacuation including shield upper layer vehicle driving passage and shield lower layer vehicle driving passage, based on longitudinal row
The fire-fighting smoke exhaust system of cigarette system binding key smoke evacuation system, current set-up mode have 3 kinds.The first is using above and below shield
Smoke duct is arranged in the sidewall spaces of layer vehicle driving passage, takes into account the smoke evacuation of the upper and lower layer vehicle driving passage of shield, and shield upper layer garage is logical
Another sidewall spaces in piping lane space and shield upper and lower level vehicle driving passage below road headspace, shield lower layer vehicle driving passage
It is used as pipeline or staircase channel.Second is logical using shield upper layer vehicle driving passage headspace as shield upper layer garage
The discharge flue in road, smoke duct of the sidewall spaces of shield lower layer vehicle driving passage as shield lower layer vehicle driving passage.The third
It is using the piping lane space below shield lower layer vehicle driving passage as the smoke duct of shield lower layer vehicle driving passage.Generally speaking,
3 kinds of smoke ducts that engineering circles generally use at present for 15m shield diameter, two-way six-lane, current car overlength city
For city's road tunnel, there are many restrictions, if upper layer smoke outlet is not arranged in tunnel top, stores up tabacco barn thickness and increase, flue gas
Control effect is poor, influences evacuating personnel safety；Smoke duct occupies the originally nervous pipe space in tunnel, pipeline difficult arrangement
Deng.
Summary of the invention
The purpose of this utility model is to provide a kind of overlength Impacts Evaluation of Urban Tunnel according in place of above-mentioned the deficiencies in the prior art
Mechanical smoke extraction device, had not only met effective smoke evacuation demand of the upper and lower layer vehicle driving passage of shield, but also met tunnel pipe space and shield
The demand of upper and lower level emergency staircase arrangement.
To achieve the goals above, the technical solution of the utility model is as follows: a kind of overlength Impacts Evaluation of Urban Tunnel machinery row
Cigarette device, the road tunnel include shield lower layer vehicle driving passage and shield upper layer vehicle driving passage, it is characterised in that in shield
Civil engineering Smoke guidance tape is set at the top of layer vehicle driving passage, forms civil engineering smoke duct above civil engineering Smoke guidance tape；In the soil
Setting smoke evacuation branch pipe access port at Smoke guidance tape bracket is built, shield lower layer vehicle driving passage is connected by smoke outlet and smoke evacuation branch pipe
Logical, the end for branch pipe of discharging fume is connect with smoke evacuation branch pipe access port.
Further, smoke evacuation branch pipe access port is greater than 0.25m apart from shield wall, convenient for the installation at smoke evacuation branch pipe access port
It constructs with sealant.
Further, fire resisting mineral wool and fire proof seal are set between the smoke evacuation branch pipe access port and civil engineering Smoke guidance tape
Fireproof seal gum is arranged in glue, smoke evacuation branch pipe access port nearly shield wall side.
Further, the smoke evacuation branch pipe radial direction dead size is not greater than 0.5m, on shield upper and lower level vehicle driving passage plate
Side's setting closed type smoke exhaust fire damper.
Further, closed type smoke exhaust fire damper lower edge is less than apart from shield upper and lower level vehicle driving passage plate top edge
0.2m。
Further, smoke evacuation branch pipe setting part patch shield wall duct section, the smoke evacuation branch pipe are locally pasting shield
Smoke discharging pipe is soft connects for setting between wall duct section and smoke exhaust fire damper.
Further, fixed suspension and support is arranged in locally patch shield wall duct section in the smoke evacuation branch pipe, so that smoke evacuation branch
Pipe, which not only has, resists shield axial displacement ability, but also has the ability for resisting shield radial displacement.
The utility model is by being arranged smoke evacuation branch at the civil engineering Smoke guidance tape bracket at the top of the vehicle driving passage of shield upper layer
Pipe access port, smoke evacuation branch pipe are connected to shield lower layer vehicle driving passage by smoke outlet, and the upper and lower layer vehicle driving passage of shield has both been met
Effectively smoke evacuation demand, and meet the needs of tunnel pipe space and shield upper and lower level emergency staircase arrangement.In addition, the machinery is arranged
Cigarette device convenient construction not only has and resists shield axial displacement ability, but also has the ability for resisting shield radial displacement.This
Utility model can effectively promote the space efficiency utilization of shield tunnel, have stronger practicability.
Detailed description of the invention
Fig. 1 is shield tunnel mechanical smoke extraction device cross-sectional view.
Fig. 2 is smoke evacuation branch pipe access port fire proof seal drawing.
Specific embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade:
Such as Fig. 1, label 1~5 is respectively as follows: civil engineering smoke duct 1, exhaust smoke valve 101, bracket 102, shield upper layer garage in figure
Channel 2, shield lower layer vehicle driving passage 3, smoke evacuation branch pipe 4, smoke discharging pipe is soft connects 401, closed type smoke exhaust fire damper 402, smoke outlet
403, smoke evacuation branch pipe access port 404, fixed suspension and support 405, piping lane 5, elastic fire resistant sealant 601, fire resisting mineral wool 602.
It is small to be suitable for 15m shield diameter, two-way six-lane, passage for a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device
The overlength Impacts Evaluation of Urban Tunnel of car.Including civil engineering smoke duct, smoke evacuation branch pipe, closed type row at the top of the vehicle driving passage of shield upper layer
Cigarette fire resisting damper, smoke outlet, it is characterised in that setting smoke evacuation branch pipe access port, the smoke evacuation at the civil engineering Smoke guidance tape bracket
Branch pipe is connected to shield lower layer vehicle driving passage.
For 15m shield diameter, two-way six-lane, current car overlength Impacts Evaluation of Urban Tunnel, to avoid collision thing
Therefore cause the destruction of smoke evacuation manifold system, it is desirable that smoke evacuation edge of the branch pipe containing outer cladding must not invade track clearance.Smoke evacuation branch pipe
Radial dead size is chosen according to the maximum value for meeting the requirement.
The quantity opened under smoke evacuation branch pipe fire working should meet shield lower layer vehicle driving passage smoke vent area not less than soil
Build the area setting of smoke duct exhaust smoke valve unlatching.The vertical installation of closed type smoke exhaust fire damper discharged fume on branch pipe, valve are following
Edge is less than 0.2m apart from shield upper and lower level vehicle driving passage plate top edge, while necessary fixed suspension and support is arranged.Civil engineering smoke evacuation
The exhaust smoke valve and the closed type smoke exhaust fire damper on smoke evacuation branch pipe in air duct can remotely be controlled by Tunnel Control Centre, can also
It is controlled by inspection operation maintenance personnel on-site manual.
Necessary fireproof seal gum is arranged in smoke evacuation branch pipe access port and air duct board at civil engineering Smoke guidance tape bracket, has
Fireproof seal gum construction is carried out in fire resisting, elastic displacement, the function of sealing, the aperture of smoke evacuation branch pipe access port nearly shield wall side.
Branch pipe discharge fume in the locally fixed suspension and support of patch shield wall duct section setting, in locally patch shield wall duct section and row
Soft connect of smoke discharging pipe between cigarette fire resisting damper connects using fire resistance is soft not less than the fire resisting of smoke evacuation branch pipe.
It is embodied as follows:
When fire occurs for shield upper layer vehicle driving passage obstruction operating condition, according to the letter of tunnel fire hazard automatic alarm system
Number, the exhaust smoke valve of central control room remote opening alert locations civil engineering smoke duct, while opening the upstream and downstream of the exhaust smoke valve
Each 2 exhaust smoke valves control fire and smoke spread in certain length range.All connection shield lower layer vehicle driving passage smoke evacuation branch pipes
Closed type smoke exhaust fire damper remains off.
When fire occurs for shield lower layer vehicle driving passage obstruction operating condition, according to the letter of tunnel fire hazard automatic alarm system
Number, the closed type smoke exhaust fire damper of central control room remote opening alert locations smoke evacuation branch pipe, while opening the closed type row
Each 2 valves in the upstream and downstream of cigarette fire resisting damper control fire and smoke spread in certain length range.All civil engineering smoke ducts
Exhaust smoke valve remains off.
Claims (7)
1. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device, the road tunnel include shield lower layer vehicle driving passage and shield
Upper layer vehicle driving passage, it is characterised in that civil engineering Smoke guidance tape, civil engineering smoke duct are set at the top of the vehicle driving passage of shield upper layer
Civil engineering smoke duct is formed above plate；Setting smoke evacuation branch pipe access port, shield lower layer at the civil engineering Smoke guidance tape bracket
Vehicle driving passage is connected to by smoke outlet with smoke evacuation branch pipe, and the end for branch pipe of discharging fume is connect with smoke evacuation branch pipe access port.
2. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device according to claim 1, which is characterized in that smoke evacuation branch pipe
Access port is greater than 0.25m apart from shield wall, convenient for the installation and sealant construction at smoke evacuation branch pipe access port.
3. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device according to claim 1, which is characterized in that the smoke evacuation
Fire resisting mineral wool and fireproof seal gum, smoke evacuation branch pipe access port nearly shield wall are set between branch pipe access port and civil engineering Smoke guidance tape
Fireproof seal gum is arranged in side.
4. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device according to claim 1, which is characterized in that the smoke evacuation
Branch pipe radial direction dead size is not greater than 0.5m, and closed type smoke exhaust fire damper is arranged above shield upper and lower level vehicle driving passage plate.
5. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device according to claim 4, which is characterized in that closed type row
Cigarette fire resisting damper lower edge is less than 0.2m apart from shield upper and lower level vehicle driving passage plate top edge.
6. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device according to claim 4, which is characterized in that the smoke evacuation
Branch pipe setting part patch shield wall duct section, the smoke evacuation branch pipe is in locally patch shield wall duct section and closed type smoke exhaust fire damper
Between setting smoke discharging pipe is soft connects.
7. a kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device according to claim 6, which is characterized in that the smoke evacuation
Fixed suspension and support is arranged in locally patch shield wall duct section in branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289097.6U CN208184766U (en) | 2018-03-01 | 2018-03-01 | A kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820289097.6U CN208184766U (en) | 2018-03-01 | 2018-03-01 | A kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184766U true CN208184766U (en) | 2018-12-04 |
Family
ID=64439167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820289097.6U Active CN208184766U (en) | 2018-03-01 | 2018-03-01 | A kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184766U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707395A (en) * | 2019-01-17 | 2019-05-03 | 中铁第四勘察设计院集团有限公司 | Double-layer shield tunnel and smokejack setting method with upper and lower level smokejack |
| CN110310562A (en) * | 2019-05-29 | 2019-10-08 | 同济大学 | The double-deck major long tunnel fire emphasis smoke evacuation pilot system |
| CN110344872A (en) * | 2019-08-22 | 2019-10-18 | 中南大学 | Shield tunnel tilts ceiling smoke discharging structure and its construction method |
-
2018
- 2018-03-01 CN CN201820289097.6U patent/CN208184766U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707395A (en) * | 2019-01-17 | 2019-05-03 | 中铁第四勘察设计院集团有限公司 | Double-layer shield tunnel and smokejack setting method with upper and lower level smokejack |
| CN109707395B (en) * | 2019-01-17 | 2024-01-16 | 中铁第四勘察设计院集团有限公司 | Double-layer shield tunnel with upper and lower layer discharge flues and discharge flue setting method |
| CN110310562A (en) * | 2019-05-29 | 2019-10-08 | 同济大学 | The double-deck major long tunnel fire emphasis smoke evacuation pilot system |
| CN110344872A (en) * | 2019-08-22 | 2019-10-18 | 中南大学 | Shield tunnel tilts ceiling smoke discharging structure and its construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208184766U (en) | A kind of overlength Impacts Evaluation of Urban Tunnel mechanical smoke extraction device | |
| CN209923973U (en) | Many fire prevention subregion ventilation system of utility tunnel | |
| CN213300388U (en) | Underground fills system of discharging fume of electric pile garage | |
| CN210951729U (en) | Subway station ventilation system capable of switching air supply and exhaust | |
| CN205509393U (en) | Cable bridge with from function of putting out a fire | |
| CN207130778U (en) | A kind of pipe gallery gravity-flow ventilation booth for integrating manhole | |
| CN113251534A (en) | Scissor stair pressurization air supply system for fire evacuation of subway station | |
| CN202484385U (en) | Fireproof vent valve | |
| CN207437115U (en) | A kind of underground railway tunnel fire ventilation smoke extraction system | |
| CN202611199U (en) | Fireproof non-return exhaust valve | |
| CN212157540U (en) | Fire-fighting smoke exhaust system | |
| CN212838086U (en) | Double-box mute box | |
| CN213667640U (en) | Fireproof smoke-discharging exhaust system for garage | |
| CN212179152U (en) | Explosion venting and ventilation combined action system for underground combustion equipment machine room | |
| CN203478535U (en) | Pipeline system for both firefighting smoke discharge and air conditioner air return | |
| CN207512875U (en) | The ventilative pressure inspection shaft of a high position | |
| CN113117272A (en) | Integrated smoke-blocking vertical wall | |
| CN207194120U (en) | The inspection shaft of sewage conduct in city integrated piping lane | |
| CN215637795U (en) | Exhaust and smoke exhaust system for fireproof partitions of distributed charging facility | |
| CN210154012U (en) | Corridor machinery smoke exhaust system capable of saving smoke exhaust machine room | |
| CN209066984U (en) | A kind of air-raid shelter's clear height is by diffuser casing in limited time and gas defence combination of channels structure | |
| CN202644939U (en) | Combined air-exhausting smoke channel | |
| CN217813568U (en) | Ventilation and smoke exhaust duct capable of reducing limitation of tunnel section size | |
| CN210490424U (en) | From integration cable tunnel of taking ventilation and smoke exhaust pipe | |
| CN215099593U (en) | Underground sump oil tank in-situ emptying pipeline fire protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |