CN101054805B - Fire-prevention protection method for underwater tunnel concrete structure - Google Patents
Fire-prevention protection method for underwater tunnel concrete structure Download PDFInfo
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- CN101054805B CN101054805B CN 200710040602 CN200710040602A CN101054805B CN 101054805 B CN101054805 B CN 101054805B CN 200710040602 CN200710040602 CN 200710040602 CN 200710040602 A CN200710040602 A CN 200710040602A CN 101054805 B CN101054805 B CN 101054805B
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- tunnel concrete
- protection method
- concrete structure
- plastic laminated
- tunnel
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Abstract
The invention relates to a tunnel, in particular to a fireproofing protection method used in the subaqueous tunnel concrete structure, wherein a plurality of hanging pieces are fixed on the surface of the tunnel concrete component; then the hanging pieces are equipped with a fixed antifiring plate, having the advantage that: the assemble and the next maintenance are convenient, the method is reliable and stable, which can effectively absorb the adverse factors because of the segment rising and contracting, sedimentation, distortion etc, and in the range of 200 DEG for the structure back temperature, the concrete layer can be protected effectively with high security, which can effectively absorb the positive and negative pressure shock wave for the vehicles in and out and meeting, easily advancing the tunnel fire rating on the existing basis.
Description
Technical field
The present invention relates to tunnel-like, relate to a kind of subaqueous tunnel concrete structure flameproof protection method that is used for concretely.
Background technology
Subaqueous tunnel concrete structure isolation layer flameproof protection method mainly contains sprayed fire proofing coating and lays the plate of setting fire.Because the distortion of tunnel structure, factor such as leak make the easy to crack and material property of fireproof paint layer reduce, and not only influence flameproof effect, and influence application life; Lay the plate scheme of setting fire and use, though adapted to certain deformation requirements, its piece, metal fastenings are delivered to body structure surface with the part heat, cause the surface structure damage, construction and follow-up inconvenient maintenance.
Summary of the invention
The objective of the invention is according to above-mentioned the deficiencies in the prior art part; a kind of flameproof protection method that is used for the subaqueous tunnel concrete structure is provided; this method is provided with lifting part between tunnel concrete structure and PLASTIC LAMINATED; reduce the contact area between the two; reduce heat conduction amount; when making full use of therebetween the space, between concrete structural surface and PLASTIC LAMINATED, be laid with anti-guncotton, strengthen flameproof effect.
The object of the invention realizes being finished by following technical scheme:
A kind of flameproof protection method that is used for the subaqueous tunnel concrete structure comprises tunnel concrete member, PLASTIC LAMINATED, it is characterized in that this method adopts following step: at first in the fixed installation of the surface of tunnel concrete member some suspender members are set; On suspender member, install and fix PLASTIC LAMINATED afterwards.
The described PLASTIC LAMINATED that installs and fixes on suspender member realizes by the metal keel, described metal keel are made of two U type grooves, the setting that superposes relatively of two U type channel openings, fixedly connected between the two cell wall, fixedly connected with suspender member for one in two U type grooves, another with PLASTIC LAMINATED between by fixedlying connected.
Before installing and fixing PLASTIC LAMINATED, between described PLASTIC LAMINATED and tunnel concrete component surface, be laid with anti-guncotton.
Described suspender member is a Metallic rod.
The quantity that is provided with of described metal keel is at least two rows, and is parallel to each other between row and row.
Advantage of the present invention is; assembling, follow-up easy to maintenance; method is reliable, stable; can effectively absorb because of adverse factors such as section of jurisdiction harmomegathus, sedimentation, distortion, be in 200 ℃ in structure back of the body temperature, all can effectively protect layer of concrete; safe; can absorb effectively that vehicle passes in and out at a high speed, the positive and negative pressure shock wave during meeting, under existing basis, it is easy to improve the tunnel fire proofing grade.
Description of drawings
Accompanying drawing 2 is the A-A cross-sectional view;
Accompanying drawing 3 is the B-B cross-sectional view;
Accompanying drawing 4 is local structure for amplifying schematic diagram.
The specific embodiment
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-4, label 1-12 represents respectively: concrete component 1, stainless steel swell fixture 2, suspender member 3, screw 4, metal keel 5, anti-guncotton 6, PLASTIC LAMINATED 7, stainless steel fire prevention screw 8, U type groove 9, fire prevention glue 10, screw 11, U type groove 12.
Present embodiment comprises tunnel concrete member 1, suspender member 3, metal keel 5, PLASTIC LAMINATED 7, and the step of employing is as follows:
A, snap the line: in the position that tunnel concrete member 1 subscript is reserved suspender member 3;
B, in this position each swell fixture 2 is installed, every square meter only uses and is less than 3 screws;
C, at screw 2 places each suspender member 3 is installed, what suspender member 3 adopted is Metallic rod, is connected and fixed by stainless steel swell fixture 2 between suspender member 3 and the tunnel concrete member 1;
D, each metal keel 5 is installed on suspender member 3, every square meter only uses and is less than 5 pull bar screws, suspender member 3 is hung fixing with metal keel 5 by screw, metal keel 5 are made of U type groove 9, U type groove 12, the relative setting that superposes of U type groove 9 with U type groove 12 openings, fixing between the cell wall of the two by screw 11, pass through screw between U type groove 9 and the suspender member 3, metal keel 5 are provided with five rows, and are parallel to each other between row and row;
E, between metal keel 5 and tunnel concrete member 1, lay anti-guncotton 6;
F, each fire-proof plate for tunnel 7 is installed, every square meter only uses and is less than 16 fire prevention screws 8, is connected and fixed by the stainless steel screw 8 of preventing fires between U type groove 12 and the PLASTIC LAMINATED 7.
Present embodiment is that a kind of flexible way of hanging the metal keel with suspender member links to each other with agent structure, and PLASTIC LAMINATED then is fixed on the below of keel, lays heat-barrier materials such as rock wool between keel and tunnel wall structure.
Present embodiment is applicable to various city tunnels, comprises shield tunnel, immersed tube tunnel, push pipe tunnel etc.Its superiority is embodied in following aspect:
(1) aspect fireproof performance:
Back of the body temperature at structure is in 200 ℃, can effectively protect layer of concrete, solves the problem that the fire-resistant antiknock of concrete is split; Whole fireproof component contacts the most transcalent part-suspender member with the section of jurisdiction, and it is lower to account for the section of jurisdiction gross area, and the part that all the other contact with the section of jurisdiction is the extremely low rock wool of coefficient of thermal conductivity; Use less relatively swell fixture, that is directly give the possibility of reinforcing bar in the section of jurisdiction lower conduction of heat, safety improves relatively;
(2) in configuration aspects, to form jointly by rigidity and flexible material, fire proof construction is difficult for destroyed:
Flexible way so that suspender member is hung the metal keel can effectively absorb because of adverse factors such as section of jurisdiction harmomegathus, sedimentation, distortion, makes the fire proof construction that adheres on it can be not destroyed; Matching surface sheet material possesses good impact strength and anti-folding rupture load, can absorb effectively that vehicle passes in and out at a high speed, the positive and negative pressure shock wave during meeting; Top layer sheet material seam crossing makes whole fireproof component not have any weak spot with anti-1200 ℃ inorganic glue filling.Under existing basis, it is easy to improve the tunnel fire proofing grade;
(3) others:
Every square meter only uses 2.5 swell fixtures, that is the degree of necessary destruction tunnel inwall is less; Surface plate is made up of inorganic material entirely, and is water-fast and can not go mouldy, and fireproof performance can not made moist or mouldy the decay because of material; Assembling, follow-up maintenance is easy; Can adjust setting height(from bottom) arbitrarily,, include the interior protection of scope of this protection system in the lump in, can save the fire prevention spending of this part other ancillary facility such as various pipeline, shrinkage joint etc. in the tunnel; In addition, the ability of hanging that it is powerful can be installed various ancillary facilities in the tunnel, and do not influenced existing fire prevention usefulness on fireproof jointing sheath.
Claims (5)
1. one kind is used for subaqueous tunnel concrete structure flameproof protection method, comprises tunnel concrete member, PLASTIC LAMINATED, it is characterized in that this method adopts following step: at first in the fixed installation of the surface of tunnel concrete member some suspender members are set; On suspender member, install and fix PLASTIC LAMINATED afterwards, the described PLASTIC LAMINATED that installs and fixes on suspender member realizes by the metal keel, described metal keel are made of two U type grooves, the setting that superposes relatively of two U type channel openings, fixedly connected between the two cell wall, fixedly connected with suspender member for one in two U type grooves, another with PLASTIC LAMINATED between by fixedlying connected.
2. a kind of subaqueous tunnel concrete structure flameproof protection method that is used for according to claim 1 is characterized in that before installing and fixing PLASTIC LAMINATED, was laid with anti-guncotton between described PLASTIC LAMINATED and tunnel concrete component surface.
3. a kind of subaqueous tunnel concrete structure flameproof protection method that is used for according to claim 1 is characterized in that described suspender member is a Metallic rod.
4. a kind of subaqueous tunnel concrete structure flameproof protection method that is used for according to claim 1 is characterized in that described fixedly is to be connected and fixed by screw.
5. a kind of subaqueous tunnel concrete structure flameproof protection method that is used for according to claim 1 is characterized in that the quantity that is provided with of described metal keel is at least two rows, and is parallel to each other between row and row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710040602 CN101054805B (en) | 2007-05-14 | 2007-05-14 | Fire-prevention protection method for underwater tunnel concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710040602 CN101054805B (en) | 2007-05-14 | 2007-05-14 | Fire-prevention protection method for underwater tunnel concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101054805A CN101054805A (en) | 2007-10-17 |
| CN101054805B true CN101054805B (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710040602 Expired - Fee Related CN101054805B (en) | 2007-05-14 | 2007-05-14 | Fire-prevention protection method for underwater tunnel concrete structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445579A (en) * | 2017-09-01 | 2017-12-08 | 陆宇皇金建材（河源）有限公司 | Fire proofing material and fire-proof plate and fire rated wall structure and construction method applied to tunnel |
| CN107975068A (en) * | 2017-11-22 | 2018-05-01 | 中南大学 | A kind of immersed tube tunnel section disconnector alternating expression fireproof construction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4006972A1 (en) * | 1990-03-06 | 1991-09-12 | Studiengesellschaft Fuer Unter | Concrete structure fire-protection system - comprises arresting layer on side towards area used by public |
| CN2091942U (en) * | 1991-05-22 | 1992-01-01 | 黄芝廷 | Wooden fire-extinguishing door |
| CN1068068A (en) * | 1991-06-21 | 1993-01-20 | 格拉沃贝尔公司 | Plastic laminated |
| JP2001098659A (en) * | 1999-09-30 | 2001-04-10 | Sekisui Chem Co Ltd | Fire resistive construction for building |
-
2007
- 2007-05-14 CN CN 200710040602 patent/CN101054805B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4006972A1 (en) * | 1990-03-06 | 1991-09-12 | Studiengesellschaft Fuer Unter | Concrete structure fire-protection system - comprises arresting layer on side towards area used by public |
| CN2091942U (en) * | 1991-05-22 | 1992-01-01 | 黄芝廷 | Wooden fire-extinguishing door |
| CN1068068A (en) * | 1991-06-21 | 1993-01-20 | 格拉沃贝尔公司 | Plastic laminated |
| JP2001098659A (en) * | 1999-09-30 | 2001-04-10 | Sekisui Chem Co Ltd | Fire resistive construction for building |
Non-Patent Citations (5)
| Title |
|---|
| CN 2091942 U,全文. |
| 安庆新.钢结构的防火板保护法.建筑技术32 11.2001,32(11),759-760. |
| 安庆新.钢结构的防火板保护法.建筑技术32 11.2001,32(11),759-760. * |
| 蔡莉萍等人.浅谈城市隧道结构防火.消防科学与技术23 1.2004,23(1),58-59. |
| 蔡莉萍等人.浅谈城市隧道结构防火.消防科学与技术23 1.2004,23(1),58-59. * |
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| CN101054805A (en) | 2007-10-17 |
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