CN207700223U - A kind of immersed tube tunnel section disconnector alternating expression fireproof construction - Google Patents
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction Download PDFInfo
- Publication number
- CN207700223U CN207700223U CN201721573627.1U CN201721573627U CN207700223U CN 207700223 U CN207700223 U CN 207700223U CN 201721573627 U CN201721573627 U CN 201721573627U CN 207700223 U CN207700223 U CN 207700223U
- Authority
- CN
- China
- Prior art keywords
- immersed tube
- tube tunnel
- fire
- tunnel section
- section disconnector
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a kind of immersed tube tunnel section disconnector alternating expression fireproof constructions, including multi-layer fireproofing part and fixing bolt, flame barrier is set to immersed tube tunnel section disconnector bottom, every layer of flame barrier includes two pieces of fire-proof plates, one of fire-proof plate extends to other side side wall from immersed tube tunnel section disconnector wherein side sidewall bottom, another piece of fire-proof plate is set to other side sidewall bottom, and there are expansion joints, the expansion joint of adjacent every two layers of fire-proof plate to be respectively at different sidewall bottoms between two pieces of fire-proof plates.The utility model has technical effect that, this alternating expression fireproof construction in middle section due to having that both sides fire-proof plate is superimposed and thickness is thicker, so good heat-insulation effect.In addition this structure both sides fire-proof plate overlapping area is big, the rock wool filled in the preset clearance at expansion joint simultaneously all further increases the sealing effect of structure, safety and stability of the immersed tube tunnel section disconnector in fire process is improved, the risk that fire proof construction is destroyed caused by being deformed due to segment joint area is eliminated.
Description
Technical field
The utility model is related to tunnel fire proofing field, more particularly to a kind of immersed tube tunnel section disconnector alternating expression fire prevention structure
It makes.
Background technology
Connector is the key position and weak link of immersed tube tunnel, is also a pith in immersed tube tunnel design.
Current connector design biases toward the research of waterproof, shockproof etc., and fire resistance is insufficient, and in Joints in Immersed Tunnel waterproof side
Face, generally use method use OMEGA waterstops.
OMEGA waterstops are rubber fastening band, and temperature use scope requires height, are -45 DEG C -+60 DEG C, while rubber conduct
A kind of combustible, it is likely that losing sealing effect effect in tunnel fire hazard even can be because high temperature of fire burns.Institute
With it is necessary to carry out fire-proof and thermal-insulation protection to chamber at section disconnector and joint waterstop, general be contemplated that spreads using in bottom
If fire-proof plate is realized, but since at section disconnector position, there are certain dilatation, flameproof protection structure is also required to
Have certain flexible ability, once otherwise the position fire prevention measure construction quality has flaw or sends out in the long-term use
Change shape, will reduce the reliability of fire prevention measure in section disconnector.When segment deforms, the position flameproof protection structure
Being likely to occur crackle causes fire resistance to decline to a great extent.
Utility model content
In order to meet the needs of telescopicing performance and fire protecting performance in immersed tube tunnel section disconnector fireproof construction, the utility model
It is proposed a kind of immersed tube tunnel section disconnector alternating expression fireproof construction with certain flexible ability and good fire resistance.
In order to achieve the above technical purposes, the technical solution of the utility model is,
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction, including multi-layer fireproofing part and fixing bolt, described is anti-
Fiery part is set to the bottom of immersed tube tunnel section disconnector, and every layer of flame barrier includes two pieces of fire-proof plates, and one of fire-proof plate is from heavy
The bottom of pipe tunnel section disconnector wherein side side wall extends to bottom other side sidewall bottom, and another piece of fire-proof plate is set to separately
Side sidewall bottom, and there are expansion joints, the expansion joint of adjacent every two layers of fire-proof plate to be respectively at not between two pieces of fire-proof plates
Same sidewall bottom.
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction, immersed tube tunnel section disconnector both sides sidewall bottom
It is respectively equipped with fixing bolt, fixing bolt passes vertically through every layer of flame barrier and flame barrier is fixed on sidewall bottom from bottom to top,
And every piece of fire-proof plate in all flame barriers is fixed bolt-through and fixation.
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction, both sides outer rim and the immersed tube tunnel of every layer of flame barrier
The lap of splice of road section disconnector both sides side wall is not less than 20cm.
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction is filled with heat-insulated rock in the expansion joint
Cotton.
The flame barrier of a kind of immersed tube tunnel section disconnector alternating expression fireproof construction, top layer is disconnected in immersed tube tunnel section
Heat-insulated rock wool is equipped at the cavity of connector.
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction, total number of plies of flame barrier are no less than two layers.
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction, fixing bolt is expansion bolt, expansion bolt
Implantation to the depth in immersed tube tunnel section disconnector side wall is 4~5cm.
A kind of immersed tube tunnel section disconnector alternating expression fireproof construction, expansion joint is apart from residing corresponding immersed tube tunnel
The horizontal distance for saving the inner edge of disconnector side wall is not less than 5cm.
The width of a kind of immersed tube tunnel section disconnector alternating expression fireproof construction, expansion joint is not less than 2cm.
The thickness of a kind of immersed tube tunnel section disconnector alternating expression fireproof construction, every layer of flame barrier is not less than 10mm.
The utility model has technical effect that, when fire occurs, section disconnector cavity inside temperature is in uneven distribution,
Middle section temperature is higher, and both sides temperature is relatively low.This alternating expression fireproof construction meets the need of segment joint area fire resistance
Centainly flexible ability is had both under the premise of wanting, and is effectively eliminated since segment joint area deforms the possibility for causing fire proof construction to be destroyed
Property.Additionally due to the structure middle section due to have both sides fire-proof plate be superimposed and thickness is thicker, so good heat-insulation effect.In addition this
Structure both sides fire-proof plate overlapping area is big, while the rock wool filled in the preset clearance at expansion joint all further increases structure
Sealing effect effectively controls high-temperature flue gas channelling, weakens heat transfer, improves immersed tube tunnel section disconnector in fire process
Safety and stability, economically reduce maintenance cost of the tunnel structure after fire, be in time people in tunnel
Member's escape and fire fire-fighting rescue provide condition advantageously.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Wherein, 1 be fire-proof plate, 2 be expansion joint, 3 be expansion bolt, 4 be heat-insulated rock wool, 5 be immersed tube tunnel section disconnector,
6 be OMEGA waterstops.
Specific implementation mode
The present embodiment is a kind of sinking pipe tunnel section disconnector fireproof construction, utilizes fire-proof plate and thick rock wool combination installation
Mode, flameproof protection is carried out to the waterstop of immersed tube tunnel section disconnector.
Referring to Fig. 1, the present embodiment is installed on the bottom of two disconnected joint locations of section of immersed tube tunnel made of concrete,
Including the multi-layer fireproofing part being fixed on the main body section of section disconnector both sides and heat-insulated rock wool.Flame barrier passes through expanding screw
Bolt is fixed in section disconnector agent structure.Every layer of flame barrier includes two pieces of fire-proof plates and reserved certain interval as expansion joint,
The expansion joint of adjacent every two layers of fire-proof plate is respectively at different sidewall bottoms, so that expansion joint forms interlaced knot
Structure, while meeting the needs of tensioning and contraction on longitudinal direction.Stuffed heat insulated rock wool is to ensure to seal heat-insulated effect inside expansion joint
Fruit.
It should be noted that：Two pieces of fire-proof plates in every layer of flame barrier, one of fire-proof plate is from immersed tube tunnel section disconnecting
The bottom of head wherein side side wall extends to bottom other side sidewall bottom, and another piece of fire-proof plate is set to other side side wall bottom
Portion, that is, the lap of flame barrier and section disconnector are greater than the disconnected cavity width of section.In addition, the heat-insulated rock wool in expansion joint
To retain certain redundancy when mounted.
To ensure flameproof effect, the both sides outer rim and the overlap joint of immersed tube tunnel section disconnector both sides side wall of every layer of flame barrier are grown
Degree is more than 20cm, and the both sides outer rim of every layer of flame barrier of the present embodiment is arranged with the outer rim of immersed tube tunnel section disconnector both sides side wall
It is concordant.Horizontal distance of the expansion joint apart from the inner edge of residing corresponding immersed tube tunnel section disconnector side wall is not less than 5cm.Together
When, the flame barrier of top layer is equipped with heat-insulated rock wool at the cavity of immersed tube tunnel section disconnector.
To ensure that, there are enough extendable rooms, the width at expansion joint is not preferably less than 2cm.
Mounted fire-proof plate should be able to bear the requirement of the positive/negative-pressure circular wave generated when air flows in tunnel.
Connector should not be less than 2 layers per side fire-proof plate, can be required to increase fire-proof plate quantity according to fire resistance or increased single
Block is prevented fires plate thickness, and to improve heat insulation, but monolithic fire prevention plate thickness is not lower than 10mm, with ensure basic heat insulation and
Structural strength.
The expansion bolt of fixed fire-proof plate and pressing plate uses M6 diameters.The selection of expansion bolt diameter there are certain requirements, mistake
It is big then will appear apparent stress concentration phenomenon, it is too small needed for expansion bolt quantity it is more, increase difficulty of construction.
Implantation depth of the expansion bolt in concrete is too short preferably between 4~5cm, is easy to fall down, long appearance
Reinforcing bar easily is encountered, structure is had an impact.
Expansion bolt need to wear gasket, and when construction answers gasket that should be contacted with fire shield surface closely.
Expansion bolt should be able to meet the requirement of corrosion resistance.Since air environment is dirty in tunnel, it should ensure that and designing
Service life endoadaptation corrosive environment.
Inner layer expansion bolt must use intumescent in countersunk head cross, and require expansion bolt outer surface and fire shield surface
Concordantly.
It should not excessively exert a force to expansion bolt when construction, in order to avoid generate stress concentration phenomenon.
Thick rock wool is fixed on fire-proof plate waterstop side by expansion bolt and angle steel, and installation will also retain certain redundancy,
To meet the needs of tensioning and contraction.And have the condition for the requirement for meeting seabed tunnel environment, such as the flammability of material
Energy, thermal coefficient, water content, water absorption rate, durability, acid and alkali-resistance etc., and it is nontoxic environmentally safe, meet at high temperature
The related request to material.
Claims (10)
1. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction, which is characterized in that including multi-layer fireproofing part and fixing bolt,
The flame barrier is set to immersed tube tunnel section disconnector bottom, and every layer of flame barrier includes two pieces of fire-proof plates, one of fire prevention
Plate extends to other side sidewall bottom from the bottom of immersed tube tunnel section disconnector wherein side side wall, and another piece of fire-proof plate is set to
Other side sidewall bottom, and there are expansion joints, the expansion joint of adjacent every two layers of fire-proof plate to be respectively between two pieces of fire-proof plates
Different sidewall bottoms.
2. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that immersed tube tunnel
Road section disconnector both sides sidewall bottom is respectively equipped with fixing bolt, and fixing bolt passes vertically through every layer of flame barrier and will from bottom to top
Flame barrier is fixed on sidewall bottom, and every piece of fire-proof plate in all flame barriers is fixed bolt-through and fixation.
3. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that every layer anti-
The both sides outer rim of fiery part is not less than 20cm with the lap of splice of immersed tube tunnel section disconnector both sides side wall.
4. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that described
Heat-insulated rock wool is filled in expansion joint.
5. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that top layer
Flame barrier heat-insulated rock wool is equipped at the cavity of immersed tube tunnel section disconnector.
6. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that flame barrier
Total number of plies be no less than two layers.
7. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 2, which is characterized in that fixed spiral shell
Bolt is expansion bolt, and it is 4~5cm that expansion bolt, which is implanted into the depth in immersed tube tunnel section disconnector side wall,.
8. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that expansion joint
Horizontal distance apart from the inner edge of residing corresponding immersed tube tunnel section disconnector side wall is not less than 5cm.
9. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that expansion joint
Width be not less than 2cm.
10. a kind of immersed tube tunnel section disconnector alternating expression fireproof construction according to claim 1, which is characterized in that every layer
The thickness of flame barrier is not less than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573627.1U CN207700223U (en) | 2017-11-22 | 2017-11-22 | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721573627.1U CN207700223U (en) | 2017-11-22 | 2017-11-22 | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207700223U true CN207700223U (en) | 2018-08-07 |
Family
ID=63021442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721573627.1U Expired - Fee Related CN207700223U (en) | 2017-11-22 | 2017-11-22 | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207700223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975068A (en) * | 2017-11-22 | 2018-05-01 | 中南大学 | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction |
-
2017
- 2017-11-22 CN CN201721573627.1U patent/CN207700223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975068A (en) * | 2017-11-22 | 2018-05-01 | 中南大学 | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210459693U (en) | Dry-hanging ceramic brick curtain wall system | |
| CN204371370U (en) | Immersed tube tunnel tube coupling joint fire proof construction | |
| CN209977545U (en) | Novel non-metallic expansion joint of gas turbine power plant | |
| CN107975068A (en) | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction | |
| CN207700223U (en) | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction | |
| CN201321668Y (en) | Thermal insulating and waterproof wallboard for buildings | |
| CN202209015U (en) | Metal thermo-insulation sandwich roof panel with polyurethane sealed edges | |
| CN202248658U (en) | Polyurethane sealing edge metal heat insulation sandwich wall panel | |
| CN211114224U (en) | Environment-friendly building thermal insulation wall | |
| CN205776867U (en) | A kind of ultralow heat conduction fire preventing steel structure construction wall | |
| CN201954113U (en) | Low-friction cold insulation pipe carrier | |
| CN209145053U (en) | A kind of valve hall casing hole occluder frame frame structure | |
| CN209620666U (en) | A kind of unsymmetric structure fireproof blocking of converter transformer valve-side sleeve valve hall hole | |
| CN108979716A (en) | A kind of safety of coal mines fire-proof wall | |
| CN205171715U (en) | Foaming magnesium oxychloride cement heated board outer wall fire prevention heat preservation system | |
| AU2020103692A4 (en) | Node Multiple Fireproof Structure Provided with a Foam Fire Extinguishing and External Display Plate and Working Method thereof | |
| CN206545319U (en) | A kind of building board with fire-proof and water-proof function | |
| CN205951396U (en) | Felt is rolled up to nanometer aluminium silicate | |
| CN211692513U (en) | Fireproof cooling water supply system of tunnel lining structure | |
| CN210370711U (en) | Waterproof, heat preservation, vapour barrier structure at low temperature tunnel top | |
| CN210370710U (en) | Waterproof, heat-insulating and steam-insulating isolator in low-temperature tunnel | |
| CN207028395U (en) | A kind of fireproof energy-saving construction warming plate | |
| CN201027313Y (en) | Concrete structure fireproof protection structure for water-bed tunnel | |
| CN101054805B (en) | Fire-prevention protection method for underwater tunnel concrete structure | |
| CN217128494U (en) | Energy-conserving fire prevention steel construction of green building |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20211122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |