JPS5894600A - Water-proof heat insulating plate and prevention of freezing of tunnel by using same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waterproof heat insulating board used to prevent freezing of tunnels and a construction method for preventing freezing of tunnels using the same. In addition to being robust, it is also desirable that the material be highly waterproof and cold resistant. The reason is that if the tunnel is not waterproof, water from the ground above the tunnel will seep into the tunnel and drip.
In addition, if it is not waterproof and cold resistant, the water that seeps into the tunnel will freeze and become icicles in the winter, especially in cold regions, and will hang down from the top of the tunnel, causing an accident. This is because the tunnel itself freezes and becomes distorted, and even after thawing, this distortion remains without being completely restored, so there is a risk that it may become damaged over many years.

In view of the above-mentioned circumstances, the present invention has been made for the purpose of providing a waterproof insulation board for use in preventing freezing of tunnels and a construction method for preventing freezing of tunnels using the same.
The structure of the waterproof heat insulating board is that it is made of a planar rectangular closed foam with appropriate elasticity, and has a synthetic resin film on the back side of the heat insulating layer, which has an integral pupil retention layer made of glass fiber or inorganic material such as asbestos on the surface. A retaining part for joining is formed on the opposing sides of one set of the main body formed by pasting a water-impermeable layer consisting of a water-impermeable layer, etc., and providing a water-permeable layer on the back side of the water-impermeable layer. It is characterized in that a bonding sheet is provided on the protective layer or impermeable layer on the opposing sides, and
The structure of the anti-freezing method consists of a planar rectangular closed foam with appropriate elasticity in the part of the tunnel's primary girder or secondary girder that is to be waterproofed and insulated, and the surface is covered with an inorganic material such as glass fiber or asbestos. An impermeable layer made of a synthetic resin film or the like is adhered to the back side of a heat insulating layer integrally provided with a protective layer made of A waterproof heat insulating board is formed with a retaining part for joining on the side and a sheet for joining is provided on the storage layer or impermeable layer on the opposite side of the other set. A throat hole is made transparent, and a cup-shaped capture member that fits into the stepped portion and has a locking flange formed on the upper edge is fitted into the hole. 1-1 The above-mentioned waterproofing. Apply the water-permeable layer from the bottom to the surface of the tunnel where the water permeable layer is to be prevented from freezing, with the joining sheet up and down, and then drive a fixing member such as an anchor bolt into the surface from the bottom plate of the extraction member to secure the iron pile. Next, place another waterproof insulation board on top of the waterproof insulation board and attach it to the surface of the tunnel in the same manner as above, and attach and bend the corresponding joining sheet ft1. One by one, the process of pasting and attaching the water-tight layer onto the retaining layer of one of the waterproof and heat insulating boards was carried out. At the same time, the corresponding retaining part of another waterproof insulation board is watertightly engaged with the engaging part of the waterproof insulation board, and the surface of the tunnel is similarly attached to the inner circumference of the tunnel. The feature is that the work of pasting is done sequentially.

Next, embodiments of the present invention will be described with reference to the drawings.

A is a waterproof heat insulating board according to an example of the present invention, in which the surface of the heat insulating layer 1 is formed by laminating and fixing closed foams 11, 12.15° 14 in planar rectangular shape with appropriate elasticity M, and the surface thereof is coated with glass fiber, asbestos, etc. A protective layer 2 made of an inorganic material is laminated and fixed, while a waterproof layer 1-6 made of a synthetic resin film etc. is laminated and fixed on the back side of the heat insulating layer 1, and an elongated closed cell or non-woven fabric is placed on the back side of the clean water #6. The main body is constructed by attaching bottom plates 4 made of materials such as the like at appropriate intervals so as to form voids 5 for water passage therebetween, and from the surface side on one side parallel to the voids 5 and from the surface side on the other side. From the IIk plane, engaging portions 6 and 7 are provided, respectively, and bonding sheets 8 and 9 are placed on the protective layer 2 on both sides perpendicular to the giant gap 5.
It is pasted so that it sticks out. In addition, the joining sheets 8 and 9 may be provided consecutively to the water stop layer 3 □ Therefore, regarding an example of constructing antifreeze work for the tunnel t using the waterproof heat insulating board A configured as described above. The explanation is as follows.

First, an appropriate number of weir holes 11 formed in a waterproof tray holder 10 having a stepped shape to fit a waterproof surface (to be described later) are made in the waterproof heat insulating board A, and the waterproof heat insulating board A is Place one sheet on the bottom surface of the part of the tunnel t that should be prevented from freezing.
A shallow cup-shaped waterproof surface 16 having a locking collar 12 on the upper periphery is fitted to the waterproof tray holder 10, and the bottom of the waterproof tray 16 is made of butyl rubber or the like. An anchor bolt 17 with a caulking material 14 and a flat washer 15 gold inserted, and an anchor member 16 screwed onto the tip with a washer 15,
Vi water dish 16. Pass through the bored hole 11 completely and drive it into the hole 18 provided on the inner circumference of the tunnel, rotate the anchor bolt 17,
The work of pressing the anchor member 16 into the hole 18 is performed on each bored hole 1.
1, the waterproof insulation board A is attached to the tunnel t, another waterproof insulation board is placed on top of this waterproof insulation board A, and it is attached to the tunnel t in the same manner as above, and the upper waterproofing Sheet 9 for joining the insulation board and sheet 8 for joining it at the γ position
Step 111: Glue the togane, bend it, and attach it watertightly to the bead layer 2 of one of the waterproof insulation boards. lower g reached
5. Connect the engaging part 6 of the other waterproof heat insulating board to the engaging part 6 of the water insulating board in a watertight manner by interposing a caulking material in between, and if necessary, firmly connect the joint m+ of the drawing board with staples. Fix it, and then fix the required waterproof insulation sheet metal joints in the J-next top and beak directions to complete the antifreeze work. 0° As above, carry out the antifreeze work using the waterproof insulation board A of the present invention as described above. Even if there is water in the tunnel, the water flows down through the channel 7 formed by the void 5 and is discharged to the outside, so water leaks inside the tunnel. There is no danger, and even if cold wind blows through the tunnel during the winter, the cold air is kept away by the circulation layer 2. It is blocked by heat insulation)-1 and is not transmitted to the tunnel wall, so there is no risk of the tunnel freezing. However, since the joints of each waterproof and heat insulating board are immersed in water, there is no risk of water leaking from the joints.

In addition, when actually performing freeze prevention work 1# of the tunnel, the 1 ton waterproof insulation board on the inner end side in the longitudinal direction of the tunnel is placed on the side of the waterproof insulation board without a retaining part on the outer side of the insulation board 1. In addition, the joining sheet below the waterproof and heat insulating board located at the lowest point in the inner circumferential direction of the tunnel, that is, in the arch-like direction, shall not be provided, but may be placed on the lower side for peace of mind. A layer of insulation shall be provided in advance.

Due to the above-mentioned achievements, the present invention is extremely useful for preventing freezing of tunnels.

[Brief explanation of the drawing]

Figure 1 is a front view of the waterproof insulation board of the present invention, Figures 2 and 3 are enlarged sectional views of the joint, and Figure 4 is an anchor used when attaching the waterproof insulation board to the tunnel wall. FIG. 3 is an enlarged cross-sectional view of a state in which a bolt is driven. A...Waterproof insulation board, T...Tunnel,
1...Insulating layer, 2.・106. Protective pupil layer, 6...
...Water stop layer, 4...Bottom plate, 5...
Gap that becomes water passage, 6, 7... Engagement part, 8゜9
......Joining sheet, 10...Waterproof tray holder, 11...Musical accompaniment hole, 12...Latching flange, 16...・Waterproof clothing 14...Caulking material, 16...Anchor material, 17...
・Anchor bolt, 18... Hole installed in the tunnel I Figure/Ir 2 Figure 3 Figure M Not Figure procedure amendment (voluntary) 1985%machi 28th, Mr. Kazuo Wakasugi, Commissioner of Patents and Lights - 1. Indication of the case Patent Application No. 191706 filed in 1982. 2. Name of the invention: Waterproof heat insulating board and antifreeze construction method for tunnels using the same. 17-5 Toyo Bussan Co., Ltd. Representative Mutsuo Hoshino 4th generation Jinnyoshi number 105 2-5-6 Shinbashi, Minato-ku, Tokyo Telephone 591-0885/80285 Specifications and drawings subject to amendments & amendments Contents 1) Amend the specification to include the attached specification. 2) Figure 3 of the drawings is corrected as shown in the attached drawings, and Figures 5 and II6 are added as shown in the attached drawings. Details Waterproof insulation board for building 1 and freeze protection IL for the tunnel it was installed on
Law 2 Patent Claim 1 A heat insulating layer made of a planar plow-shaped closed foam having appropriate elasticity, with a protective layer made of an inorganic material such as glass fiber or asbestos integrally provided on the surface, and a synthetic resin film or the like on the back side of the heat insulating layer. A retaining part for joining is formed on the opposite side of the -d of the main body formed by pasting a water-stop layer consisting of U and a water-permeable layer on the back side of the water-stop layer. A waterproof heat insulating board characterized in that a bonding sheet is provided on the retaining layer or the water-stop layer of the opposing joint parts. 2. Waterproofing and insulation of the primary stockwork or secondary stockwork of the tunnel.
A part of the foam is made of a flat rectangular foam with the same elasticity, and a protective layer made of glass fiber or an inorganic material such as asbestos is integrally provided on the surface.The back side of the cross-sectional P layer is made of a synthetic resin film, etc. A water-stopping layer consisting of the water-stopping layer is pasted on the back side of the water-stopping layer (a pair of opposing sides of the main body formed with the water-permeable layer provided with the water-permeable layer are formed with a retaining part for coupling with TiC). A stepped intake hole is provided at an appropriate location in a waterproof heat insulating board formed by providing a bonding sheet on the protective layer or water stop layer on the opposite sides of the board. A cup-shaped intake member with a locking flange formed on the upper edge is connected to the front IR-' attachment hole, and the water is passed through the waterproof insulation board in the arch-shaped direction of the connecting seat tunnel. Apply the layer to the ceiling of the surface of the tunnel that is to be prevented from freezing, and drive a hard bolt such as an anchor bolt from the bottom plate of the auxiliary member into the front surface into the ridge surface. Work to join the waterproof insulation board t- Perform one after another to attach the waterproof insulation boards in an arch shape to the inner circumference of the tunnel, and at the same time attach the corresponding retention parts of other waterproof insulation boards to the retaining parts of the front waterproof insulation board. A method for preventing freezing of a tunnel, which is characterized by sequentially engaging with a water hole and pasting it on the surface of a tunnel in the same manner as described above. 3. Detailed description of the invention This article relates to a waterproof insulation board and a construction method for preventing freezing of tunnels using the same.When constructing the tunnel, it was necessary to ensure that the Demei Juroku Tunnel was not only robust but also waterproof and cold resistant. The reason for this is that if the tunnel is not waterproof, water from the ground above the tunnel will seep into the tunnel and drip.
In addition, it is not waterproof or cold resistant, and in winter, especially in cold regions, the water that seeps into the tunnel on the front floor freezes and becomes icicles, which hang down from the top wall of the tunnel and cause accidents. , the tank itself freezes and becomes distorted (1, this σ)
The reason for this is that even if you insert W#, it will not restore everything and will remain, so there is a risk that it will get damaged over many years. In view of the above-mentioned circumstances, the present invention was developed with the object of providing a waterproof insulation board for use in preventing freezing of tunnels and a construction method for preventing freezing of tunnels using the same. The structure consists of a planar rectangular closed foam with appropriate elasticity, the back side of which is a heat insulating layer integrally provided with a protective NI made of glass fiber or inorganic material such as asbestos on the surface (2) K-layer resin film. Attach a water-stopping layer consisting of a water-stopping layer 17, and form a coplanar water-tracing layer on the same surface of the waterstopping layer; The feature is that a protective layer or a bonding sheet is provided on the opposing sides of a pair of ice cubes. The primary cover or the secondary mechanism's heat insulation gap is made of a planar rectangular closed foam with appropriate elasticity, and the surface is made of glass fiber or asbestos weight material. #a
The back side of the heat insulating layer is made of integrated resin film, etc. Isui R9! i, and a water permeable layer is provided on the back side of the water-stopping layer to form L7, and a joint S is formed on the opposing sides of one set of the main body, and another set of facing fi1
Stepped mounting (1 is transparently installed at appropriate locations of a waterproof insulation board consisting of a bonding sheet installed on one part of the retaining layer or water stop layer)
After forming the core, a cup-shaped locking flange is formed on the upper edge that fits into the stepped part, and the flange member is fitted into the front injection hole, and the waterproof and heat-insulating board is attached to the joining sheet. In the arched direction of the tunnel π, the water permeable layer is placed on the ceiling of the surface of the tunnel that is to be prevented from freezing, and a fixing member such as an anchor bolt is driven into the surface from the bottom plate of the front f-taking member. Then, apply the joining sheets on both sides of the waterproof insulation board to the tunnel wall surface, and place the other waterproof insulation board on top of them by bending or cutting the joining sheets to the middle of the tunnel wall. The waterproof heat insulating board is pasted in an arch shape around the inner periphery of the tunnel, while the engaging portion of the waterproof heat insulating board is adhered to the surface of the tunnel in the same manner as described above. This is characterized in that the steps of watertightly engaging the corresponding engaging portions of the waterproof and heat insulating plates and adhering them to the surface of the tunnel in the same manner as described above are performed in sequence. An embodiment of the present invention will be explained below with reference to the drawings. A is a waterproof heat insulating board according to an example of the present invention, and the surface of the heat insulating layer 1 is formed by laminating and fixing flat rectangular closed foam bodies 11, 12, 13° 14 having an appropriate elasticity 1, and the surface thereof is coated with glass fiber, asbestos, etc. A protective layer 2 made of an inorganic material is laminated and fixed, while a water-stopping layer 3 made of a synthetic resin film or the like is fixed on the back side of the heat-insulating layer 1. The main body is constructed by attaching bottom plates 4 made of non-woven fabric etc. at appropriate intervals so as to form 9 holes 5 for water passage between them (7, from the surface side on one of both sides parallel to the voids 5). ,
A retaining part 6.7 is provided from the side of Nakagata KJ1, and a bonding sheet 8.9 is protruded and pasted onto the retainer W#Ir#lI2 on both sides perpendicular to the sky @5. . Note that the joining sheet 8.9 may be connected to the water stop #3Vr. Therefore, regarding an example of antifreezing work for a tunnel t using the waterproof heat insulating board A configured as described above, 1
To clarify, it is as follows. First, the intake hole 11 is formed using a waterproof heat insulating board AK with a step and a waterproof plate holder 1oVC shaped to meet the waterproof surface, which will be described later.
A suitable number of waterproof and heat insulating boards A are placed in the direction of the arch-like force of the bonding sheet 8.9' f: ) to freeze the water-permeable layer. FM a shallow cup-shaped waterproof surface 13 with a locking flange 12 on the periphery, which is applied to the ceiling of the surface to be prevented,
The bottom of the waterproof surface 13 is made of caulking material 14 made of RK phthyl rubber, etc., a flat washer is made of 15 gold, and an anchor bolt 17 with an anchor member 16 screwed onto the tip is attached to the washer 1.
5. Waterproof surface 16. Drive it through the attachment hole 11 into the H2S provided on the inner circumference of the tunnel, rotate the anchor bolt 17,
The work of pressing the anchor member 16 into the hole 18 is carried out at each
Step 1: From K, attach the waterproof insulation board A't'' door panel tr, apply the bonding sheets 8 and 9 on both sides of this waterproof insulation board A to the wall surface of the door panel t, and place the Another waterproof heat insulating board is placed by bending the sheet for contacting it to the tunnel wall side, and pasting and joining the tunnel tK in the same manner as the front Ie and P1, and pasting it in an arch shape on the inner circumference of the tunnel. At the same time, connect the retaining part 7 of another waterproof heat insulating board to the engaging part 6 of the lower waterproof heat insulating board A pasted in the front r in a watertight manner with a caulking hole interposed therebetween. !Fix the joints of both plates firmly with staples according to 11 below.
σ), in which the required amount of waterproof and heat insulating boards are joined and fixed in the primary upper and lateral directions to complete the antifreeze work. As shown in P above, in a tunnel constructed to prevent freezing using Ichimoku's invention heat-insulating heat plate A, even if water leaks from the upper wall, the water will flow down through the channel carved by the sky @ 5. However, since the water can be discharged to the outside, there is no risk of water leaking inside the tunnel.Furthermore, even if cold wind blows through the tunnel in winter, the cold air is kept away by the protective layer 2. It is blocked by the heat insulating layer 1vζ and is not transmitted to the tunnel wall, so there is no risk of the tunnel freezing. However, since the joints of each waterproof and heat insulating board are sealed watertight, there is no risk of water leaking from these joints.In addition, when actually performing antifreeze work on a tunnel, The waterproof heat insulating board located at both lengthwise ends M fill K shall not have an engaging part on the side facing the outside, but shall have a protective layer on its side surface. The lower bonding sheet iJ of the waterproof and heat insulating board located at the lowest position of the circuit is not provided, but if necessary, a film retaining layer shall be provided in advance on the lower side.U Upper bonding agent sheet 8.9 We have described the waterproof insulation board AK that is stuck to the water-resistant layer 2, but next we will talk about the waterproof insulation board A that has the fixed sheets 8' and 9' connected to the impermeable layer, that is, the water-stop layer filter. ′ will be explained. Figure 5 is a front view of waterproof and heat insulating board A.
, 9' are connected to the water stop layer 6 as shown in Fig. 6, and the following is an example of using this waterproof insulation board A' to perform antifreeze work on a tunnel T. That's right. 5 and 6, the same reference numerals as in FIG. 1'Py to FIG. 4 indicate the same parts. First, attach waterproof insulation board A'+ to the ceiling of the part of tunnel t where all waterproofing work is to be done, apply adhesive sheet 8 to the wall surface of tunnel t, and attach another waterproof insulation board A'+ on top of 7. ;”
, the joining sheet 9 is bent to the wall surface @ of the tunnel t, placed on the Wk meeting sheet 9', and attached to the wall surface of the tunnel tV, while the joining piece SIO 9 of the waterproof insulation board A' is attached to the wall surface of the tunnel t. Place another waterproof insulation board on top of the wall of the tunnel t, and bend the adhesive sheet 8 toward the wall of the tunnel t.
”: Arrange π on the joining sheet 9 and adhere it to the wall surface of the tunnel t.A waterproof insulation board A' is pasted in an arch shape around the inner circumference of the tunnel, and this pasted waterproof insulation board A Watertightly engage the engagement WL6 of the waterproof heat insulating plate A' with the retaining portion 7 of ', and in the same manner as above, attach the
The waterproof and heat insulating board A' is attached in an 11th arch shape. The effect is the same as when the above-mentioned bonding sheet is provided on the static retention plate. In addition, in the above @FK, we have already described the case where the adhesive sheet of the waterproof insulation board A is attached to the wall WIK of the tunnel t and joined to the water insulation board A'. Cut the sheet and store it. Since the present invention is as described above, the I/C is extremely useful for preventing freezing of tunnels. 4. Brief explanation of the drawings Figure 1 is a front view of an example of the waterproof insulation board of the present invention, Figures 2 and 3 are enlarged sectional views of the joint, and Figure 4 is a diagram showing the waterproof insulation board attached to the wall of a tunnel. FIG. 5 is a separate front view of the waterproof and heat insulating board of the present invention, and FIG. 6 is an enlarged sectional view of the joint portion thereof. A, A'...waterproof insulation board, t...tunnel, 1
...Insulating layer, 2...Protection layer, 6...Water stop layer, 4.
...Bottom plate, 5...Water flow becomes i%94. 6, 7-
・・Retaining portion% 8.9 ・・Binding agent sheet, 10 ・・Waterproof pan holder, 11 ・・Taking hole, 12 ・・Locking flange, 1
3...Fat water dish, 14...Caulking material, 16...
Anchor member, 17... Anchor bolt, 18...
Hole 51 N 3 mouth provided in the tunnel

Claims (1)

[Scope of Claims] 1. From a closed foam with a planar rectangular shape having appropriate elasticity.
Synthetic ff on the back side of the insulation layer, which has a protective layer made of natural materials such as glass fiber or asbestos on the outside + N
l A pair of main bodies formed by pasting an opaque* layer made of M&film, etc., and straddling a water-permeable layer on the back side of the Firyo Suimei, and an engagement for joining on opposite sides. A water-proof and heat-insulating board that forms a section and is provided with a sheet lamination for joining on a protective layer or a water layer on another pair of opposing sides. 2. The parts of the primary or secondary tunnel tunnels that are to be waterproofed and heated shall be made of a rectangular shape with an appropriate elasticity, and the surface shall be free of glass fibers, asbestos, etc. f
I! The main body is formed by pasting a synthetic 41 "water-impermeable film made of film, etc." on the back side of a heat-insulating layer that is integrally provided with a protective layer made of a material, and providing a launching layer on the back side of the water-impermeable layer. Appropriate waterproof heat insulating board comprising a set of opposing sides forming an engaging part for joining, and a joining sheet provided on the hoof preservation layer or impermeable layer of another set of opposing sides. A stepped mounting hole is made transparent at the location, and a mounting member that is cup-shaped and has a flange for engagement on the upper edge that fits into the stepped portion is inserted into the hole. Then, place the water-permeable layer on the surface of the tunnel that is to be prevented from freezing from the lower part of the waterproof and heat-insulating board with the joining sheet F below, and attach the fixing member such as an anchor bolt from the bottom plate of the time-durable member to the above-mentioned Then, place another waterproof insulation board on top of the waterproof insulation board and attach it to the surface of the tunnel in the same manner as above, and attach the corresponding bonding sheet to the steel surface. The waterproof insulation board is pasted in an arch shape around the inner circumference of the tunnel, while the waterproof insulation board is pasted in an arch shape on the inner circumference of the tunnel. A method for preventing freezing of tunnels, which is characterized by 111 steps of watertightly engaging the corresponding retaining part of another waterproof and heat insulating board with the joining part, and adhering it to the surface of the tunnel in the same way as @ml.