WO2019136903A1 - 沉管隧道管节接头防火结构 - Google Patents

沉管隧道管节接头防火结构 Download PDF

Info

Publication number
WO2019136903A1
WO2019136903A1 PCT/CN2018/088447 CN2018088447W WO2019136903A1 WO 2019136903 A1 WO2019136903 A1 WO 2019136903A1 CN 2018088447 W CN2018088447 W CN 2018088447W WO 2019136903 A1 WO2019136903 A1 WO 2019136903A1
Authority
WO
WIPO (PCT)
Prior art keywords
fireproof
belt
board
heat insulating
structure according
Prior art date
Application number
PCT/CN2018/088447
Other languages
English (en)
French (fr)
Inventor
潘树杰
何军
陈长卿
佟安岐
Original Assignee
中国建筑工程（香港）有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中国建筑工程（香港）有限公司 filed Critical 中国建筑工程（香港）有限公司
Publication of WO2019136903A1 publication Critical patent/WO2019136903A1/zh

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/063—Tunnels submerged into, or built in, open water
    • E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/16—Arrangement or construction of joints in foundation structures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution

Definitions

  • the present application relates to the technical field of immersed tunnels, and in particular to an immersed tunnel pipe joint joint fireproof structure.
  • the joint between the two adjacent pipes needs to be connected by a waterproof belt component, such as a rubber water stop rubber strip, to prevent external moisture from penetrating into the pipeline through the joint, the waterproof belt assembly
  • a waterproof belt component such as a rubber water stop rubber strip
  • the fire protection requirements within the design period (for example, 120 years) to ensure the overall fire performance of the tunnel structure. If there is a fire in the pipeline, the fire will inevitably affect the service life of the waterproof belt assembly. Therefore, it is common practice to install a fireproof panel to achieve the fire protection requirements of the waterproof belt assembly.
  • the existing fireproof panel has the following problems: Only the fireproof board is installed.
  • the existing fireproof design meets the fire protection requirement of two hours, that is, the fireproofing of the waterproofing belt component will not be affected within two hours of the fire in the pipeline.
  • the two-hour fireproofing effect can not achieve effective fire prevention. demand.
  • the two adjacent pipes need longitudinal displacement, and the existing joint structure only has one fire board and cannot meet the displacement requirements.
  • the main object of the present application is to provide an immersed tunnel pipe joint joint fireproof structure, which aims to enable the fireproof component to simultaneously meet the requirements of fireproofing and displacement.
  • the immersed tunnel pipe joint joint fireproof structure proposed by the present application comprises a waterproof belt assembly and a fireproof assembly, and the waterproof belt assembly and the fireproof assembly are connected between two adjacent pipes of the immersed tunnel tube.
  • the fire protection component is spaced apart from the waterproof tape assembly and located inside the waterproof tape assembly, and the fire protection component comprises:
  • a fender assembly comprising a first fire board and a second fire board spaced apart, one end of the first fire board and the second fire board being connected to a pipe, the first fire board and the second The other end of the fireproof board is movably connected to another pipe;
  • the flexible fireproof belt is located between the first fireproof board and the second fireproof board, and one end of the flexible fireproof belt is connected to the heat insulating member, and the other end is connected to a pipe.
  • the range of the thickness H1 of the first fireproof board is: 28.5 mm ⁇ H1 ⁇ 36 mm.
  • the first fireproof board comprises three layers of fireproof composite boards, and each of the fireproof composite boards has a thickness ranging from 9.5 mm to 12 mm.
  • the range of the thickness of the second fireproof panel H2 is: 28.5 mm ⁇ H2 ⁇ 36 mm.
  • the second fireproof board comprises three layers of fireproof composite boards, and each of the fireproof composite boards has a thickness ranging from 9.5 mm to 12 mm.
  • the heat insulating member is asbestos.
  • the thickness H3 of the heat insulating member ranges from 120 mm ⁇ H3 ⁇ 150 mm.
  • an end of the heat insulating member facing away from the flexible fireproof belt is provided with an auxiliary fireproof belt, one end of which is connected to the heat insulating member, and the other end is connected to a pipe.
  • a connecting portion is protruded from an end surface of each of the ducts, and the waterproof strap assembly connects two adjacent connecting segments, the waterproof strap assembly, the two connecting segments, the ends of two adjacent conduits, and the A fireproof panel encloses a fireproof space, and the second fireproof panel and the heat insulator are located in the fireproof space.
  • the heat insulating member is mounted on a surface of the first fireproof board facing the second fireproof board.
  • the waterproof belt assembly is installed between two adjacent pipes to prevent external moisture from entering the pipe.
  • the fire protection assembly is placed inside the waterproof belt assembly to prevent the internal fire from affecting the waterproof belt assembly, thereby protecting the waterproof belt assembly.
  • the fireproof component is disposed as a first fireproof board, a heat insulation component, and a second fireproof board, so that the fire inside the pipeline is first blocked by the first fireproof board, and the installation of the heat insulation component further prevents the temperature of the first fireproof board from being too high.
  • the temperature of the air adjacent to the waterproof belt assembly portion is too high, and finally the second fireproof board is disposed, so that the influence of the fire inside the pipeline on the waterproof belt assembly is minimized, and the fireproof design as described above can be at least four hours.
  • the fire protection requirement that is, the fire in the pipeline does not affect the waterproof belt assembly within four hours, thereby greatly improving the service life of the waterproof belt assembly.
  • first fireproof board and the second fireproof board are connected to one pipe, and the other end of the first fireproof board and the second fireproof board are movably connected with another pipe, and when the longitudinal displacement between the two pipes is set,
  • the first fireproof board and the second fireproof board can also meet the displacement demand, and at the same time, in order to prevent the temperature from being transmitted from the first fireproof board and the second fireproof board where the heat insulating part is not provided during the moving process, the heat insulation is
  • One end of the piece is provided with a flexible fireproof belt, which can be telescoped and folded, thereby preventing the temperature of overheating from being transmitted therefrom, further improving the fireproof capability of the fireproof component.
  • FIG. 1 is a schematic structural view of an embodiment of a fireproof structure of a pipe joint of a immersed tunnel of the present application
  • Figure 2 is a partial enlarged view of a portion A in Figure 1.
  • fixed may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • fix may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • first”, “second”, and the like in this application are used for descriptive purposes only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the application proposes a fireproof structure of a pipe joint of a immersed tunnel.
  • the immersed tunnel pipe joint joint fireproof structure includes a waterproof belt assembly 10 and a fireproof assembly 30, and the waterproof belt assembly 10 and the fireproof assembly 30 are connected to the adjacent immersed tunnel tube. Between the two ducts 50, the fire protection assembly 30 is spaced from the waterproof belt assembly 10 and is located inside the waterproof belt assembly 10, and the fire protection assembly 30 includes:
  • the fender assembly 31 includes a first fire board 311 and a second fire board 313 which are spaced apart from each other. One end of the first fire board 311 and the second fire board 313 are connected to a duct 50, and the first fire board 311 and The other end of the second fireproof board 313 is movably connected to another duct 50;
  • the heat insulating member 33 is located between the first fireproof board 311 and the second fireproof board 313;
  • the flexible fireproof belt 35 is disposed between the first fireproof board 311 and the second fireproof board 313, and one end of the flexible fireproof belt 35 is connected to the heat insulating member 33, and the other end is connected to a duct 50.
  • the waterproof belt assembly 10 is installed between two adjacent ducts 50 to prevent external moisture from entering the duct 50.
  • the fire protection assembly 30 is disposed inside the waterproof belt assembly 10 to prevent the internal fire of the duct 50 from affecting the waterproof belt assembly 10, thereby protecting the waterproof belt assembly 10.
  • the fireproof assembly 30 is disposed as the first fireproof board 311, the heat insulating member 33, and the second fireproof board 313, so that the internal fire of the duct 50 is first blocked by the first fireproof board 311, and the arrangement of the heat insulating member 33 further prevents the first
  • the temperature of the fireproof board 311 is too high, so that the temperature of the air adjacent to the waterproof belt assembly 10 is too high, and finally the second fireproof board 313 is disposed, so that the influence of the fire inside the duct 50 on the waterproof belt assembly 10 is minimized, and the test is performed.
  • the fire protection design as described above can achieve a minimum of four hours of fire protection requirements, that is, the fireproof belt assembly 10 is not affected within four hours of the fire in the duct 50, thereby greatly increasing the service life of the waterproof belt assembly 10. Meanwhile, one ends of the first fireproof board 311 and the second fireproof board 313 are connected to one duct 50, and the other ends of the first fireproof board 311 and the second fireproof board 313 are movably connected with another duct 50, when the two ducts 50 are performed.
  • the first fireproof plate 311 and the second fireproof plate 313 thus disposed can also satisfy the displacement requirement, and at the same time, in order to prevent the temperature from being prevented from moving from the first fireproof plate 311 and the second fireproof plate 313 during the moving process
  • the portion of the heat insulating member 33 is disposed, and a flexible fireproof belt 35 is disposed at one end of the heat insulating member 33.
  • the flexible fireproof belt 35 can be expanded and folded to prevent the temperature of overheating from being transmitted therefrom, thereby further improving the fireproof capability of the fireproof assembly 30. .
  • the flexible fireproof belt 35 is made of asbestos, and is installed in a pre-compression manner at the time of installation, that is, at the same height, the density of the asbestos is greater, so that the flexible fire is prevented during the longitudinal displacement of the two adjacent pipes 50.
  • the belt 35 can be longitudinally stretched to meet the requirements of longitudinal displacement, and the flexible fireproof belt 35 can function as a heat insulating fire during longitudinal stretching.
  • the fixed connection between the first fireproof board 311 and the second fireproof board 313 and the duct 50 can be connected by bolts and fixing plates, and the movable connection of the first fireproof board 311 and the second fireproof board 313 with the duct 50 can be
  • the first fire board 311 and the second fire board 313 are disposed at the end of the duct 50 to slide at the board, or the end of the duct 50 is provided with a sliding slot, a first fire board 311 and a second fire board. The end of the 313 is inserted into the sliding slot for sliding.
  • the connection of the first fireproof board 311 and the second fireproof board 313 to the duct 50 can also adopt other manners, and is also within the protection scope of the present application.
  • the range of the thickness H1 of the first fireproof board 311 is 28.5 mm ⁇ H1 ⁇ 36 mm.
  • the first fireproof board 311 plays a role of preliminary fire prevention. Therefore, the thickness should not be too thin. If it is too thin to be used for fire prevention purposes, the fire protection purpose can be achieved by setting it to 28.5 mm or more. Of course, the thickness of the first fireproof board 311 should not be too thick, and the excessive thickness may affect the overall assembly of the duct 50. Therefore, the thickness of the first fireproof board 311 is set to be 36 mm or less.
  • the first fireproof board 311 includes three layers of fireproof composite boards, and the thickness of each fireproof composite board ranges from 9.5 mm to 12 mm.
  • the overall thickness of the first fireproof board 311 needs to meet the above requirements. Therefore, if the first fireproof board 311 is provided as a one-piece board, it is inconvenient in transportation and assembly. Therefore, the fireproof composite of three layers is used. The board is easy to transport and assemble. Of course, the thickness of each layer of the fireproof composite panel should be 9.5 mm to 12 mm so that the overall thickness satisfies the above requirements.
  • the three-layer fireproof composite board can be assembled by means of self-tapping screws, or can be assembled by other means, and is within the protection scope of the present application.
  • the thickness of the steel plate from bottom to top is gradually reduced, and the thickness of the three members is still required to satisfy 28.5 mm ⁇ H1 ⁇ 36 mm. Because the thickness of the steel plate located below is sufficiently thick, when a large fire is generated, the steel plate located below serves as the first layer to resist, and does not deform due to excessive fire.
  • the fireproof composite board may be a composite steel plate, the inner layer is a cement core layer with fibers added, and the outer side is a 0.5 mm thick perforated galvanized steel sheet.
  • the second fireproof board 313 is disposed as follows: the range of the thickness of the second fireproof board 313H2 is: 28.5 mm ⁇ H2 ⁇ 36 mm.
  • the second fireproof board 313 functions as the final heat insulation. Therefore, the thickness is also not too thin. If it is too thin to isolate the temperature, the temperature is set to be greater than or equal to 28.5 mm to achieve the above-mentioned isolation temperature. Of course, the thickness of the second fireproof board 313 should not be too thick, and the excessive thickness may affect the overall assembly of the duct 50. Therefore, the thickness of the second fireproof board 313 is set to be 36 mm or less.
  • the second fireproof board 313 includes three layers of fireproof composite boards, and each of the fireproof composite boards has a thickness ranging from 9.5 mm to 12 mm.
  • the thickness of the steel plate from bottom to top is gradually reduced, and the thickness of the three members is still required to satisfy 28.5 mm ⁇ H1 ⁇ 36 mm. Because the thickness of the steel plate located below is sufficiently thick, when the higher temperature is generated, the steel plate located below is resistant to the first layer and does not deform due to excessive temperature.
  • the heat insulating member 33 is asbestos.
  • Asbestos also known as "asbestos fiber", is a generic term for certain silicate minerals that can be broken into elastic fiber. Chemical formula: 3MgO•2SiO2•2H2O, fibrous, greenish yellow or white, white when split into floc, silky luster, elastic fiber, asbestos with acid, alkali and heat resistance, heat and electricity conductor. Therefore, the heat insulating member 33 of the present application is made of asbestos material, which can better insulate and prevent fire.
  • the range of the thickness H3 of the heat insulating member 33 is 120 mm ⁇ H3 ⁇ 150 mm.
  • the thickness of the heat insulating member 33 should not be too thin. If it is too thin to isolate the temperature, the above-mentioned temperature isolation can be achieved by setting it to 120 mm or more. Of course, the thickness of the heat insulating member 33 should not be too thick, and excessive thickness may affect the overall assembly of the pipe 50. Therefore, the thickness of the heat insulating member 33 is set to be 150 mm or less.
  • an end of the heat insulating member 33 facing away from the flexible fireproof belt 35 is provided with an auxiliary fireproof belt 37, one end of the auxiliary fireproof belt 37 and the heat insulation.
  • the member 33 is connected and the other end is connected to a duct 50.
  • the heat insulating member 33 when the heat insulating member 33 is installed, its both ends are not directly connected to the ends of the duct 50, one end is connected by the flexible fireproof belt 35, and the other section is connected by the auxiliary fireproof belt 37, the auxiliary fireproof belt 37 and the flexible fireproof belt
  • the effect of 35 is similar to prevent heat from passing there.
  • each pipe 50 is convexly provided with a connecting portion 51, and the waterproof belt assembly 10 connects two adjacent connecting segments 51, the waterproof belt assembly 10, the two connecting segments 51, and two adjacent pipes.
  • the end portion of the 50 and the first fireproof panel 311 enclose a fireproof space 70, and the second fireproof panel 313 and the heat insulating member 33 are located in the fireproof space 70.
  • the fireproof space 70 thus provided facilitates assembly of the fireproof assembly 30 and the waterproof belt assembly 10, and makes the overall structure compact.
  • the heat insulating member 33 is mounted on the surface of the first fireproof board 311 facing the second fireproof board 313.
  • the first fireproof panel 311 is first assembled, then the heat insulator 33 is assembled on the surface of the first fireproof panel 311, then the flexible fireproof strip 35 is assembled, and finally the second fireproof panel 313 is assembled.
  • the upper and lower surfaces of the heat insulating member 33 may respectively abut against the upper surface of the first fireproof board 311 and the lower surface of the second fireproof board 313.
  • the upper surface of a fireproof board 311 is sufficient.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Thermal Insulation (AREA)
  • Building Environments (AREA)

Abstract

一种沉管隧道管节接头防火结构，包括连接于相邻的两管道(50)之间的防水带组件(10)和防火组件(30)，防火组件(30)与防水带组件(10)间隔设置，并位于防水带组件(10)的内侧，防火组件(30)包括：防护板组件(31)，防护板组件(31)包括间隔设置的第一防火板(311)和第二防火板(313)，以及固定于第一防火板(311)和第二防火板(313)之间的隔热件(33)，第一防火板(311)和第二防火板(313)的一端与一管道(50)连接，另一端与另一管道(50)活动连接；以及柔性防火带(35)，柔性防火带(35)位于第一防火板(311)与第二防火板(313)之间，且柔性防火带 (35)的一端与隔热件(33)连接，另一端与管道 (50)连接。

Description

沉管隧道管节接头防火结构
技术领域
本申请涉及沉管隧道技术领域，特别涉及一种沉管隧道管节接头防火结构。
背景技术
沉管法施工隧道中，两个相邻的管道之间的连接处需要采用防水带组件，例如橡胶止水胶条进行连接，防止外部的水分通过该连接处渗入到管道内，该防水带组件除了需要满足隧道管节间的纵向伸缩位移外，必须在设计年限（例如120年）内，满足防火要求，从而保证隧道结构整体防火性能。若管道内起火，该火情势必会影响到防水带组件的使用寿命，因此，目前普遍的做法是设置一个防火板来实现防水带组件的防火需求，然而，现有的防火板存在以下问题：只设置防火板，经试验检测，现有的防火设计达到两小时的防火需求，也即，管道内起火两小时内不会对防水带组件造成影响，两小时的防火时效已无法实现有效的防火需求。同时，此两个相邻的管道需要纵向位移，现有接头结构只设置一个防火板，也无法满足位移的要求。
发明内容
本申请的主要目的是提供一种沉管隧道管节接头防火结构，旨在使得防火组件能够同时满足防火时效和位移的需求。
为实现上述目的，本申请提出的沉管隧道管节接头防火结构，包括防水带组件和防火组件，所述防水带组件和所述防火组件连接于沉管隧道管相邻的两管道之间，所述防火组件与所述防水带组件间隔设置，并位于所述防水带组件的内侧，所述防火组件包括：
防护板组件，所述防护板组件包括间隔设置的第一防火板和第二防火板，所述第一防火板和第二防火板的一端与一管道连接，所述第一防火板和第二防火板的另一端与另一管道活动连接；
隔热件，所述隔热件位于所述第一防火板和第二防火板之间；以及
柔性防火带，所述柔性防火带位于所述第一防火板与所述第二防火板之间，且所述柔性防火带的一端与所述隔热件连接，另一端与一管道连接。
可选地，所述第一防火板的厚度H1的范围值为：28.5mm≤H1≤36mm。
可选地，所述第一防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
可选地，所述第二防火板H2的厚度的范围值为：28.5mm≤H2≤36mm。
可选地，所述第二防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
可选地，所述隔热件为石棉。
可选地，所述隔热件的厚度H3的范围值为：120mm≤H3≤150mm。
可选地，所述隔热件的背离所述柔性防火带的一端设有辅助防火带，该辅助防火带的一端与所述隔热件连接，另一端与一管道连接。
可选地，每一所述管道的端面均凸设有连接段，所述防水带组件连接两相邻的连接段，所述防水带组件、两连接段、两相邻管道的端部以及第一防火板围设形成防火空间，所述第二防火板以及隔热件位于该防火空间内。
可选地，所述隔热件安装于所述第一防火板朝向所述第二防火板的表面。
本申请技术方案中，防水带组件安装在在两个相邻的管道之间，以防止外部水分进入到管道内。防火组件设置在防水带组件的内侧，可防止管道内部火势影响到防水带组件，从而保护防水带组件。进一步将防火组件设置为第一防火板、隔热件、以及第二防火板，使得管道内部火势先经由第一防火板进行阻隔，隔热件的设置进一步防止第一防火板的温度过高而使得临近防水带组件部分的空气温度过高，最后设置第二防火板，使得管道内部的火势对防水带组件的影响降到最低，经试验检测，如上所述的防火设计最少可以达到四小时的防火需求，也即，管道内起火四小时内不会对防水带组件造成影响，从而极大的提高了防水带组件的使用年限。同时，第一防火板和第二防火板的一端与一管道连接，第一防火板和第二防火板的另一端与另一管道活动连接，当两管道之间进行纵向位移时，如此设置的第一防火板和第二防火板也可满足位移的需求，同时，为了防止在移动的过程中，防止温度从第一防火板和第二防火板未设置隔热件的部位传递，在隔热件的一端设置柔性防火带，该柔性防火带可实现伸缩和折叠，进而防止过热的温度从此处传递，进一步提升防火组件的防火能力。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请沉管隧道管节接头防火结构一实施例的结构示意图；
图2为图1中A处的局部放大图。
附图标号说明：
标号 名称 标号 名称
10 防水带组件 35 柔性防火带
30 防火组件 37 辅助防火带
31 防护板组件 50 管道
311 第一防火板 51 连接段
313 第二防火板 70 防火空间
33 隔热件
本申请目的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
另外，在本申请中如涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种沉管隧道管节接头防火结构。
参照图1至2，在本申请实施例中，该沉管隧道管节接头防火结构，包括防水带组件10和防火组件30，防水带组件10和防火组件30连接于沉管隧道管相邻的两管道50之间，防火组件30与防水带组件10间隔设置，并位于防水带组件10的内侧，防火组件30包括：
防护板组件31，防护板组件31包括间隔设置的第一防火板311和第二防火板313，第一防火板311和第二防火板313的一端与一管道50连接，第一防火板311和第二防火板313的另一端与另一管道50活动连接；
隔热件33，隔热件33位于第一防火板311和第二防火板313之间；以及
柔性防火带35，柔性防火带35位于第一防火板311与第二防火板313之间，且柔性防火带35的一端与隔热件33连接，另一端与一管道50连接。
本申请技术方案中，防水带组件10安装在在两个相邻的管道50之间，以防止外部水分进入到管道50内。防火组件30设置在防水带组件10的内侧，可防止管道50内部火势影响到防水带组件10，从而保护防水带组件10。进一步将防火组件30设置为第一防火板311、隔热件33、以及第二防火板313，使得管道50内部火势先经由第一防火板311进行阻隔，隔热件33的设置进一步防止第一防火板311的温度过高而使得临近防水带组件10部分的空气温度过高，最后设置第二防火板313，使得管道50内部的火势对防水带组件10的影响降到最低，经试验检测，如上所述的防火设计最少可以达到四小时的防火需求，也即，管道50内起火四小时内不会对防水带组件10造成影响，从而极大的提高了防水带组件10的使用年限。同时，第一防火板311和第二防火板313的一端与一管道50连接，第一防火板311和第二防火板313的另一端与另一管道50活动连接，当两管道50之间进行纵向位移时，如此设置的第一防火板311和第二防火板313也可满足位移的需求，同时，为了防止在移动的过程中，防止温度从第一防火板311和第二防火板313未设置隔热件33的部位传递，在隔热件33的一端设置柔性防火带35，该柔性防火带35可实现伸缩和折叠，进而防止过热的温度从此处传递，进一步提升防火组件30的防火能力。
该柔性防火带35采用石棉，在安装时会采用预压缩的方式进行安装，也即在同样的高度下，使得石棉的密度更大，使得两相邻管道50在纵向位移过程中，该柔性防火带35能够纵向伸展，满足纵向位移的要求，且该柔性防火带35在纵向伸展过程中能够起到隔热防火的作用。
可以理解的是，第一防火板311和第二防火板313与管道50的固定连接可以采用螺栓加固定板的方式连接，第一防火板311和第二防火板313与管道50的活动连接可采用在管道50的端部设置承载板第一防火板311和第二防火板313在该承载板处滑动，或者，管道50的端部设置滑动插槽，第一防火板311和第二防火板313的端部插入至该滑动插槽内进行滑动。当然，可以理解的是，第一防火板311和第二防火板313与管道50的连接还可以采用其他方式，也在本申请的保护范围内。
结合参照图2，在本申请的一实施例中，第一防火板311的厚度H1的范围值为：28.5mm≤H1≤36mm。
第一防火板311起到初步防火的作用，因此，厚度不宜太薄，若太薄无法起到防火的目的，设置为大于等于28.5mm，即可实现上述的防火目的。当然，第一防火板311的厚度也不宜过过厚，过厚会影响管道50的整体装配，因此，将第一防火板311的厚度设置为小于等于36mm。
进一步地，为了方便第一防火板311的运输和装配，第一防火板311包括三层层叠设置的防火复合板，每一防火复合板的厚度范围为：9.5mm至12mm。
第一防火板311的整体厚度需要满足上述的需求，因此，该第一防火板311若设置为整块的板，在运输和装配的过程中较为不便，因此，采用三层层叠设置的防火复合板，可以方便运输和装配。当然，每一层的防火复合板的厚度要满足9.5mm至12mm，以使得整体的厚度满足上述的需求。
三层防火复合板可采用自攻螺丝的方式进行组装，也可以采用其他方式进行组装，均在本申请的保护范围内。
为了实现更好的防火效果，可以采用如下设置：三层防火复合板中，由下至上的钢板的厚度逐渐减小，三者整体的厚度还是要满足28.5mm≤H1≤36mm。因为，位于下方的钢板的厚度足够厚，在产生较大的火势时，位于下方的钢板起到第一层的抵御，不会因火势过大而产生形变。
该防火复合板，可以是一种复合钢板，内层是掺加纤维的水泥核心层，外侧为0.5mm厚有孔镀锌钢板。
结合上述的方案，对于第二防火板313的设置如下：第二防火板313H2的厚度的范围值为：28.5mm≤H2≤36mm。
第二防火板313起到最终隔热的作用，因此，厚度同样不宜太薄，若太薄无法起到隔绝温度的目的，设置为大于等于28.5mm，即可实现上述的隔绝温度目的。当然，第二防火板313的厚度也不宜过过厚，过厚会影响管道50的整体装配，因此，将第二防火板313的厚度设置为小于等于36mm。
进一步地，同样为了方便第二防火板313的运输和装配，第二防火板313包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
同样的，为了实现更好的隔热效果，可以采用如下设置：三层防火复合板中，由下至上的钢板的厚度逐渐减小，三者整体的厚度还是要满足28.5mm≤H1≤36mm。因为，位于下方的钢板的厚度足够厚，在产生较高的温度时，位于下方的钢板起到第一层的抵御，不会因温度过高而产生形变。
在本申请的一实施例中，隔热件33为石棉。石棉亦称“石棉纤维”，为可分裂成富有弹性纤维丝的某些硅酸盐矿物的总称。化学式：3MgO•2SiO2•2H2O，呈纤维状，绿黄色或白色，分裂成絮时呈白色，丝绢光泽，纤维富有弹性，石棉具耐酸、耐碱和耐热性能，又是热和电的不良导体。因此，本申请的隔热件33采用石棉材质，可以较好的隔热防火。
进一步地，隔热件33的厚度H3的范围值为：120mm≤H3≤150mm。
同样的，隔热件33厚度不宜太薄，若太薄无法起到隔绝温度的目的，设置为大于等于120mm，即可实现上述的隔绝温度目的。当然隔热件33的厚度也不宜过过厚，过厚会影响管道50的整体装配，因此，将隔热件33的厚度设置为小于等于150mm。
结合参照图1和图2，在本申请的一实施例中，隔热件33的背离所述柔性防火带35的一端设有辅助防火带37，该辅助防火带37的一端与所述隔热件33连接，另一端与一管道50连接。
也即，隔热件33在安装时，其两端未与管道50的端部直接连接，一端通过柔性防火带35连接，另一段通过辅助防火带37连接，该辅助防火带37与柔性防火带35的作用类似，防止热量从该处通过。
在本申请的一实施例中，每一管道50的端面均凸设有连接段51，防水带组件10连接两相邻的连接段51，防水带组件10、两连接段51、两相邻管道50的端部以及第一防火板311围设形成防火空间70，第二防火板313和隔热件33位于该防火空间70内。
如此设置的防火空间70，既可方便装配防火组件30和防水带组件10，又使得整体的结构紧凑。
进一步地，隔热件33安装于第一防火板311朝向第二防火板313的表面。在装配防火组件30时，先将第一防火板311装配好，然后将隔热件33装配在第一防火板311的表面，然后在装配柔性防火带35，最后再将第二防火板313装配好即可完整从整体的装配。隔热件33的上下表面可以分别抵接于第一防火板311的上表面和第二防火板313的下表面，当然，也可以采用类似与本申请图示中所显示的，只安装在第一防火板311的上表面即可。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (20)

  1. 一种沉管隧道管节接头防火结构，其中，包括防水带组件和防火组件，所述防水带组件和所述防火组件连接于相邻的两管道之间，所述防火组件与所述防水带组件间隔设置，并位于所述防水带组件的内侧，所述防火组件包括：
    防护板组件，所述防护板组件包括间隔设置的第一防火板和第二防火板，所述第一防火板和第二防火板的一端与一管道连接，所述第一防火板和第二防火板的另一端与另一管道活动连接；
    隔热件，所述隔热件位于所述第一防火板和第二防火板之间；以及
    柔性防火带，所述柔性防火带位于所述第一防火板与所述第二防火板之间，且所述柔性防火带的一端与所述隔热件连接，另一端与一管道连接。
  2. 如权利要求1所述的沉管隧道管节接头防火结构，其中，所述第一防火板的厚度H1的范围值为：28.5mm≤H1≤36mm。
  3. 如权利要求1所述的沉管隧道管节接头防火结构，其中，所述第一防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
  4. 如权利要求1所述的沉管隧道管节接头防火结构，其中，所述第二防火板H2的厚度的范围值为：28.5mm≤H2≤36mm。
  5. 如权利要求1所述的沉管隧道管节接头防火结构，其中，所述第二防火板H2的厚度的范围值为：28.5mm≤H2≤36mm。
  6. 如权利要求2所述的沉管隧道管节接头防火结构，其中，所述第二防火板H2的厚度的范围值为：28.5mm≤H2≤36mm。
  7. 如权利要求3所述的沉管隧道管节接头防火结构，其中，所述第二防火板H2的厚度的范围值为：28.5mm≤H2≤36mm。
  8. 如权利要求4所述的沉管隧道管节接头防火结构，其中，所述第二防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
  9. 如权利要求5所述的沉管隧道管节接头防火结构，其中，所述第二防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
  10. 如权利要求6所述的沉管隧道管节接头防火结构，其中，所述第二防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
  11. 如权利要求7所述的沉管隧道管节接头防火结构，其中，所述第二防火板包括三层层叠设置的防火复合板，每一所述防火复合板的厚度范围为：9.5mm至12mm。
  12. 如权利要求4所述的沉管隧道管节接头防火结构，其中，所述隔热件为石棉。
  13. 如权利要求12所述的沉管隧道管节接头防火结构，其中，所述隔热件的厚度H3的范围值为：120mm≤H3≤150mm。
  14. 如权利要求8所述的沉管隧道管节接头防火结构，其中，所述隔热件的背离所述柔性防火带的一端设有辅助防火带，该辅助防火带的一端与所述隔热件连接，另一端与一管道连接。
  15. 如权利要求9所述的沉管隧道管节接头防火结构，其中，所述隔热件的背离所述柔性防火带的一端设有辅助防火带，该辅助防火带的一端与所述隔热件连接，另一端与一管道连接。
  16. 如权利要求10所述的沉管隧道管节接头防火结构，其中，所述隔热件的背离所述柔性防火带的一端设有辅助防火带，该辅助防火带的一端与所述隔热件连接，另一端与一管道连接。
  17. 如权利要求12所述的沉管隧道管节接头防火结构，其中，所述隔热件的背离所述柔性防火带的一端设有辅助防火带，该辅助防火带的一端与所述隔热件连接，另一端与一管道连接。
  18. 如权利要求13所述的沉管隧道管节接头防火结构，其中，所述隔热件的背离所述柔性防火带的一端设有辅助防火带，该辅助防火带的一端与所述隔热件连接，另一端与一管道连接。
  19. 如权利要求14所述的沉管隧道管节接头防火结构，其中，每一所述管道的端面均凸设有连接段，所述防水带组件连接两相邻的连接段，所述防水带组件、两连接段、两相邻管道的端部以及第一防火板围设形成防火空间，所述第二防火板以及隔热件位于该防火空间内。
  20. 如权利要求14所述的沉管隧道管节接头防火结构，其中，所述隔热件安装于所述第一防火板朝向所述第二防火板的表面。
PCT/CN2018/088447 2018-01-10 2018-05-25 沉管隧道管节接头防火结构 WO2019136903A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810021907.4 2018-01-10
CN201810021907.4A CN107956222B (zh) 2018-01-10 2018-01-10 沉管隧道管节接头防火结构

Publications (1)

Publication Number Publication Date
WO2019136903A1 true WO2019136903A1 (zh) 2019-07-18

Family

ID=61956652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/088447 WO2019136903A1 (zh) 2018-01-10 2018-05-25 沉管隧道管节接头防火结构

Country Status (2)

Country Link
CN (1) CN107956222B (zh)
WO (1) WO2019136903A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107956222B (zh) * 2018-01-10 2019-07-19 中国建筑工程（香港）有限公司 沉管隧道管节接头防火结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3910086B2 (ja) * 2002-03-18 2007-04-25 太平洋セメント株式会社 トンネル耐火材の目地構造
KR20110137930A (ko) * 2010-06-18 2011-12-26 (주)대우건설 가변형 해저구조물의 접합부 내화 성능 개선을 위한 내화재 연속 도포 구조
CN204371370U (zh) * 2015-01-09 2015-06-03 招商局重庆交通科研设计院有限公司 沉管隧道管节接头防火结构
CN105780810A (zh) * 2016-04-21 2016-07-20 招商局重庆交通科研设计院有限公司 水中悬浮隧道接头
CN107023037A (zh) * 2017-03-24 2017-08-08 中国交通建设股份有限公司 一种用于沉管隧道的管节接头防火构造及施工方法
CN107956222A (zh) * 2018-01-10 2018-04-24 中国建筑工程（香港）有限公司 沉管隧道管节接头防火结构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH093942A (ja) * 1995-06-23 1997-01-07 Kyoritsu Kagaku Sangyo Kk 沈埋トンネルにおける函体連結部の耐火構造

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3910086B2 (ja) * 2002-03-18 2007-04-25 太平洋セメント株式会社 トンネル耐火材の目地構造
KR20110137930A (ko) * 2010-06-18 2011-12-26 (주)대우건설 가변형 해저구조물의 접합부 내화 성능 개선을 위한 내화재 연속 도포 구조
CN204371370U (zh) * 2015-01-09 2015-06-03 招商局重庆交通科研设计院有限公司 沉管隧道管节接头防火结构
CN105780810A (zh) * 2016-04-21 2016-07-20 招商局重庆交通科研设计院有限公司 水中悬浮隧道接头
CN107023037A (zh) * 2017-03-24 2017-08-08 中国交通建设股份有限公司 一种用于沉管隧道的管节接头防火构造及施工方法
CN107956222A (zh) * 2018-01-10 2018-04-24 中国建筑工程（香港）有限公司 沉管隧道管节接头防火结构

Also Published As

Publication number Publication date
CN107956222B (zh) 2019-07-19
CN107956222A (zh) 2018-04-24

Similar Documents

Publication Publication Date Title
WO2019136903A1 (zh) 沉管隧道管节接头防火结构
WO2013081307A1 (ko) 난연성 배관 지지용 마감재
WO2019136904A1 (zh) 具有线性移动机构的沉管隧道管节接头防火结构
CN2485851Y (zh) 高等级防火母线槽
WO2020224130A1 (zh) 排水结构、空调室内机及空调器
WO2019136905A1 (zh) 具有连接结构的沉管隧道管节接头防火结构
CN107956224B (zh) 沉管隧道管节接头防火结构
CN218299570U (zh) 一种用于箱式变压器的分层式防火母线槽
CN108240000B (zh) 沉管隧道管节接头结构
CN208009481U (zh) 具有固定结构的沉管隧道管节接头防火结构
CN212462728U (zh) 一种耐火型母线槽的接头装置
CN208009479U (zh) 具有连接结构的沉管隧道管节接头防火结构
CN208009478U (zh) 沉管隧道管节接头防火结构
CN210182981U (zh) 一种耐火母线槽
CN215498170U (zh) 一种耐火散热型母线槽
WO2012074204A2 (ko) 차음 및 단열패널 유닛 및 이를 이용한 벽체와 바닥구조
WO2017204391A1 (ko) 진공단열재 조립 구조 및 조립 방법
CN113746046A (zh) 一种带散热环的耐火母线槽
WO2010041849A2 (ko) 난방용 바닥판 및 이의 조립체
CN208009477U (zh) 沉管隧道管节接头防火结构
CN208009480U (zh) 沉管隧道管节接头结构
WO2016024772A1 (ko) 난방 시스템
CN212775997U (zh) 一种用于换流变阀厅套管处的封堵结构
CN111969526A (zh) 一种矿物质耐火母线槽
WO2022035016A1 (ko) 벽체용 복합 유니트 패널

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18899282

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18899282

Country of ref document: EP

Kind code of ref document: A1