JP3165913U - Panel fixing material - Google Patents

Abstract

An object of the present invention is to efficiently repair the inner surface of a waterway tunnel using a resin concrete panel by a simple process, and to utilize the characteristics of the resin concrete panel to continuously use a fixing material for two panels, thereby achieving economical efficiency. To provide a fixing means with an increased height. An oval-shaped oval-shaped through-hole 2 penetrates a rectangular parallelepiped made of an elastic material in a direction perpendicular to an upper surface 3, and a major axis of the through-hole is disposed close to one of the side surfaces 5 facing each other. And the two sides in the vertical direction of the adjacent side surface 5 are formed by a rectangular surface 9 having a right triangular prism-shaped space portion. A fixing material for resin concrete panels characterized by the above-mentioned. [Selection diagram] Fig. 1

Description

  The present invention relates to a fixing material for a concrete panel for lining used for inner surface reinforcement and repair of a waterway tunnel or the like.

  When reinforcing and repairing waterway tunnels, construction methods using precast concrete panels for lining have been increasingly adopted. And the precast concrete panel used is also excellent in the strength characteristics of the panel, can be used as a panel with a thickness of about 10 mm, and also has a low surface roughness value, so the reinforcement repair method for waterway tunnels Resin concrete panels are often used. In this method, the inner surface of the tunnel is covered with a resin concrete panel, a backfill material is filled between the panel and the existing concrete surface, and the inner surface of the tunnel is covered with the panel.

  To cover the inner surface of the tunnel with resin concrete panels, connect multiple panels with different curved shapes to match the arch shape in the circumferential direction of the tunnel, and also in the axial direction of the tunnel depending on the distance It is necessary to connect the panels. For such connection and fixing of the panels, a method of fixing the connection using anchor bolts or a combination of bolts and nuts and the like, and filling a sealing material in the connecting portion is performed.

  Such a construction method takes time and labor, and is not efficient. In order to solve such problems, a method of providing a flange portion at the edge of the resin concrete panel and connecting and fixing the flange portion by a fixing means such as a screw has been proposed (see Patent Document 1). However, in this method, it is necessary to provide a flange on the panel, and it is also necessary to fix it with screws, etc., and the fixing bolt positions of the panel and the tunnel part will cause errors if set in advance, and each other Since it does not match the bolt position, it was not sufficient in terms of cost and work efficiency.

JP 2004-204554 A

  An object of the present invention is to efficiently repair the inner surface of a waterway tunnel using a resin concrete panel and to provide a panel fixing means for utilizing the characteristics of the resin concrete panel.

  The fixing material of the present invention is a rectangular parallelepiped made of an elastic material, with an oval through hole penetrating in a direction perpendicular to the upper and lower surfaces, and the long diameter of the through hole is arranged close to one of the facing side surfaces. And the two sides of the adjacent side surface in the vertical direction are formed by a rectangular surface having a right triangular prism-shaped space portion. It is a fixing material for resin concrete panels.

  The rectangular parallelepiped is a hexahedron composed of upper and lower surfaces facing in parallel and two sets of side surfaces facing in parallel. In the fixing member, an oval through hole having an oval shape provided perpendicular to the upper and lower surfaces is provided adjacent to one of the pair of side surfaces. And the rectangular surface formed in the two sides of the up-down direction of the adjacent side surface can be closely_contact | adhered to the panel surface, and a panel can be fixed. This is because, since the fixing material is made of an elastic material, when the panel is fixed, when the panel is pushed into the side surface where the through hole of the fixing material is in close proximity, the oval through hole is recessed inward. Then, it is deformed into a concave shape, and the two rectangular surfaces can be pressed against the panel surface by the repulsive force of the elastic body. The rectangular surface may be formed by cutting these two sides into a right triangular prism shape from a rectangular parallelepiped, or by previously molding the elastic material into such a shape. Similarly, the oval through hole may be cut out from a rectangular parallelepiped or may be formed in advance.

  In the fixing material described above, a panel fixing material in which all four sides in the vertical direction of the side surface are cut into a right triangular prism shape to form a rectangular surface is also provided. In this fixing material, the shape of the upper and lower surfaces of the rectangular parallelepiped is a shape in which each vertex is cut out in a triangular shape, and is an octagon. The presence of the triangular prism-shaped space portion is accompanied by the insertion of the panel, and the rectangular surface formed after the through hole is deformed into a concave shape becomes the fixed surface of the panel. Moreover, two panels can be connected and fixed by having two surfaces on one side. Furthermore, by having four surfaces on both sides, it is possible to adjust the elastic repulsion force by changing the thickness of the portion deformed into a concave shape by reversing the side surfaces.

  In the fixing material, it is preferable that the right triangular prism is an isosceles right triangular prism, the elastic material is rubber, and the hardness of the rubber is 62 ± 5 degrees in Shore A.

  In the above fixing material, it is preferable that the side surface close to the oval through hole is a side surface on the long side of the upper and lower surfaces.

  As a fixing structure using the fixing material of the present invention, the rectangular surface formed on the side surface close to the oval through hole of the fixing material is elastically formed on the surface of the panel by deforming the through hole into a concave shape. A structure for fixing a resin concrete panel for tunnel lining in which the panel is fixed is obtained by being pressed and adhered by the repulsive force of the body.

  And as said fixed structure, when inserting the resin concrete panel edge part inside the flange of an H steel support, it inserts this panel end to the flange of an H steel support between the existing fixing material and the flange. By inserting, the fixing structure characterized by the panel being fixed to the flange inner side part is also obtained.

  In the fixing material of the present invention, when the panel is pressed against the side surface where the oval through hole is close, the through hole is deformed into a concave shape, and the rectangular surfaces formed on both sides of the side surface are in close contact with the panel surface. And the panel can be fixed. In this fixing material, the oval through-hole is close to one side surface, and the constituent material of the fixing material is also made of an elastic material. It can be deformed and can be fixed without requiring excessive force. And after fixing, a rectangular surface closely_contact | adheres to the panel surface, and a panel can be fixed by elastic repulsion. When two panels are connected and fixed, the fixing material can be bridged at the end of each panel, and the two rectangular surfaces can be distributed and adhered to the respective panel surfaces. By reducing the number of fixing materials, the cost can be reduced.

  Further, the panel can be securely fixed to the support by a simple operation of sandwiching the fixing material of the present invention together with the end of the panel between the flanges of the H steel support. In addition, when lining the tunnel inner surface, as described above, a plurality of panels can be connected and fixed by a simple operation in which a fixing material is bridged between the flanges and sandwiched with the panels. As described above, when the H steel support and the fixing material of the present invention are combined, the repair lining on the inner surface of the tunnel is streamlined because there are few processes, and the construction method can be constructed in a short construction period.

  Furthermore, the resin concrete panel to which the fixing material of the present invention is preferably applied has a surface roughness coefficient of n = 0.010, and a normal smooth concrete surface has a roughness count of n = 0.103. On the other hand, it has small characteristics. When the panel fixing material of the present invention is used, the resin concrete panel does not require mounting or processing of a fixing bracket, and does not impair a good surface roughness coefficient. And in the fixed structure that combines the H steel support and the panel fixing material of the present invention, the panel connecting part of the tunnel inner surface lining is a flange of the H steel support, so the surface roughness of the lining surface The degree coefficient is also maintained well, and the characteristics of the resin concrete panel can be utilized.

  And, in the panel fixing material in which all four sides in the vertical direction of the side surface are formed into a rectangular surface, the four corners are not pointed, it becomes an assist effect when inserting the panel, and the work is easy to work. In the case of an isosceles right triangular prism, it is easy to apply to all panels of various curvatures. In addition, when rubber is used as the elastic material, the panel fixing material can be easily attached, and a panel fixing force by an excellent elastic repulsive force can be obtained.

It is a perspective view of the Example of the fixing material of this invention. It is the top view, front view, and side view of the fixing material of FIG. It is sectional explanatory drawing orthogonal to the axial direction of the tunnel which has covered the panel with the combination of the fixing material of an Example, and H steel support. It is an enlarged view of the fixing part of the panel by the fixing material in FIG. It is a section and back explanatory drawing of the panel fixation structure by the fixing material of an example. It is explanatory drawing of the fixing structure of the panel of the tunnel upper part which combined the fixing material of Example, and H steel support, 5A is a vertical cross section parallel to a tunnel axial direction, 5B is a vertical cross section orthogonal to a tunnel axial direction FIG.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In the fixing material 1 of the present invention shown in FIGS. 1 and 2, the oval through hole 2 is provided close to the side surface 5 among the side surfaces 5 and 6 facing the rectangular parallelepiped, and the oval oval shape. The major axis is parallel to the side surfaces 5 and 6. The side surfaces 5 and 6 are long sides of the upper and lower surfaces (upper surface 3 and lower surface 4), and the side is longer than the other pair of side surfaces 7 and 8. In this embodiment, all four sides in the vertical direction of the two sets of side surfaces are cut out in a right triangular prism shape to form rectangular surfaces 9 and 10. When all four sides are cut out and have corners in this way, the panel insertion work becomes easy, and the elastic force can be converted by flipping up and down, and the fixing work is easy. However, such a configuration is not necessarily required, and at least two sides of the side surface on which the through hole 2 is close may be cut off. As will be described below, the fixing of the panel using the fixing material 1 can be performed by bringing the rectangular surface 9 into close contact with the panel surface.

  Since the fixing material 1 is made of an elastic material such as rubber, in order to fix the panel using the fixing material 1, the panel end is pushed into the side surface 5, and further strongly pushed, so that the deformed portion 11 is passed through the hole. 2 is deformed so as to be depressed in a concave shape in the inner direction, and the rectangular surface 9 can be closely attached to the panel surface and fixed.

  FIG. 3 is a cross-sectional explanatory view orthogonal to the axial direction of the tunnel covering the panel with the combination of the fixing material of the present invention and the H steel support. The two H-steel supporters 30 are provided along the tunnel side wall and the arch of the ceiling, and are connected to the top of the tunnel by a support end flange 31, and the tunnel base is covered with an invert panel 24. Has been. The panel covering the tunnel side wall and the arch part is composed of three resin concrete panels 21, 22, and 23 having different curvatures along the side wall and the arch part. The fixing material 1 is used as a fixing material 1a that is in close contact with and fixed to one panel and a fixing material 1b that connects the two panels in a bridge shape. The resin concrete panel is covered with resin concrete panels 22 and 23 having a large curvature from a resin concrete panel 21 having a small curvature in order from the bottom plate along the inner flange 33 of the H steel support 30. The resin concrete panel 21 is fixed to the inner flange 33 by fixing members 1 a and 1 b sandwiched between the panel and the outer flange 32. The resin concrete panel 22 is fixed at both ends by a fixing material 1b, and the resin concrete panel 23 is fixed by fixing materials 1b and 1a. Both of these fixing materials 1a and 1b are concavely deformed with the through holes recessed inward, the rectangular surface 9 is in close contact with the surface of the resin concrete panel, and the panel is fixed by elastic repulsion.

  FIG. 4 shows a state in which the fixing material 1 b fixes the resin concrete panels 21 and 22. Here, the panel fixing material 1b is set inside the flanges 32 and 33 of the H steel support 30, and the ends of the resin concrete panels 21 and 22 are connected to the inner flange 33 and the panel fixing material of the H steel support. The resin concrete panels 21 and 22 are fixed to the inner flange 33. The fixing member 1b is pushed in at the ends of the resin concrete panels 21 and 22, and the deformed portion 11 is deformed so as to be recessed in the inner direction of the through hole 2, and the two rectangular surfaces 9 are formed into the panels 21 and 22. And is in close contact with the surface. In this way, the through-hole 2 is deformed so as to be recessed in the inward direction, whereby the rectangular surface 9 can be completely adhered to the panel surface, and the panel can be firmly fixed with the fixing material.

  FIG. 5 is an explanatory diagram of a structure in which the resin concrete panels 21, 22, and 23 are fixed between the outer flange 32 and the inner flange 33 of the H steel support 30 using the fixing members 1 a and 1 b. 5A, 4B, and 4C in FIG. 5 are a cross-sectional view and a rear view of the structure in which the resin concrete panels 21, 22, and 23 are fixed, respectively. 4A shows a structure in which the resin concrete panel 21 is fixed at the four corners of the panel by two fixing members 1a and two fixing members 1b. In the fixing material 1a, two rectangular surfaces are in close contact with the resin concrete panel 21, and in the fixing material 1b, only one of the rectangular surfaces is in close contact, and the other rectangular surface is in close contact with the other panel. 4B shows a structure in which the resin concrete panel 22 is fixed by four fixing members 1b, and in 4C, the resin concrete panel 23 is fixed by two fixing members 1a and two fixing members 1b.

  FIG. 6 shows a vertical sectional view 5A parallel to the tunnel axis direction and a vertical sectional view 5B perpendicular to the tunnel axis direction of the side wall and the arch portion of the tunnel covered with the resin concrete panel. These drawings show a structure in which the resin concrete panels 22 and 23 are fixed by the fixing members 1 a and 1 b and the H steel support 30.

  The resin concrete panel 22 is fixed along the inner flange 33 of the H steel support 30 by four fixing members 1b. In this case, as shown in 5A of FIG. 6, the resin concrete panel 22 is covered with a plurality of panels via the H steel support 30 according to the distance covered in the tunnel axial direction. In the structure in which the plurality of panels are connected and fixed, the longitudinal end portion of the resin concrete panel 22 is inserted along the inner flange 33 on one side of the H steel support 30 and the inner flange on the other side. 33, the end of the other resin concrete panel 22 to be connected is inserted in the vertical direction, and the end of the inserted panel is placed above and below this panel as shown by 5B in FIG. 6, 23 can be configured by being fixed by the inserted fixing member 1b. This structure is the same for the resin concrete panels 21 and 23 except that the fixing material 1a is used together. In this case, as shown in 5B, in the fixing materials 1a and 1b, the deformed portion 11 is depressed inside the through hole 2, and the rectangular surface 9 is in close contact with the panel surface to fix each resin concrete panel. Is as described above.

  In this lining, the gap between the existing concrete portion of the tunnel and the covered panel is filled and injected with fine particle grout and the like and filled and consolidated with the lining mortar 40. In addition, the vertical joints of the resin concrete panels 21, 22, 23 are covered with the inner flange of the H-steel support 30, and joint caulking is performed along the shape of the panel, but the joints in the horizontal direction are joints. Caulking 25 or seal tape curing is applied.

  As described above, by using the fixing material of the present invention, the resin concrete panel can be laid on the inner wall of the tunnel with a simple operation. Furthermore, there is no protrusion such as a fixing bracket on the surface of the covered panel, and the characteristic that the roughness coefficient of the resin concrete panel is small is not impaired. Therefore, it can be particularly preferably applied to the lining of a waterway tunnel.

  As the elastic material constituting the fixing material of the present invention, a soft plastic material such as soft polyvinyl chloride can be used, but considering the influence of mortar curing heat, rubber is preferable, natural rubber and various synthetic materials Rubber is used. The hardness of the rubber used for the fixing material is preferably in the range of 62 ± 5 degrees on Shore A. By using rubber with this range of hardness, the panel can be fixed easily and the panel can be firmly fixed. Repulsive force that can be obtained. In order to mold the fixing material, it can be produced by blending various rubber materials with fillers, vulcanized materials, other additives, and the like, followed by vulcanization molding. In this case, as described above, it may be pre-molded with a die provided with a through hole or a rectangular surface, or after molding a rectangular parallelepiped of rubber, the corresponding side is cut into a right triangle and the through hole is cut. It may be penetrated.

  Resin concrete panels to which the fixing material of the present invention is preferably applied are mixed with thermosetting resin such as unsaturated polyester resin and epoxy resin, and fine aggregate such as silica sand and calcium carbonate, glass fiber, etc., and pressed while heating. Molded panels are optimal and are very tight, hard and have stable chemical properties. Therefore, it is excellent in strength and is sufficiently used as a precast panel for lining even with a thickness of about 10 mm. Further, as described above, the resin concrete panel has a low roughness coefficient and is preferable as a lining material for a waterway tunnel.

  As described above, the fixing material of the present invention is a material that is simple and efficient in repairing the inner surface of a waterway tunnel using resin concrete panels, and has excellent workability. Other precast concrete such as ultra-high-strength concrete panels Can also be used to fix panels.

DESCRIPTION OF SYMBOLS 1 Fixing material 1a Fixing material applied to the same panel 1b Fixing material applied to two panels in bridge shape 2 Oval oval through-hole 3 Upper surface of fixing material 4 Lower surface of fixing material 5, 6 Side (long side of top and bottom)
7, 8 Side surface of fixing material (short side of top and bottom surfaces)
DESCRIPTION OF SYMBOLS 9 Rectangular surface 10 Rectangular surface 11 Deformation part 21, 22, 23 Resin concrete panel 24 Invert panel 25 Joint coking 30 H steel support 31 Support support end flange 32 Support work outer flange 33 Support work inner flange 40 Covering mortar

Claims (6)

  In a rectangular parallelepiped made of an elastic material, an oval through-hole is penetrating in a direction perpendicular to the upper and lower surfaces, and the long diameter of the through-hole is arranged close to one of the facing side surfaces and parallel to the side surface. A fixing material for a resin concrete panel, characterized in that the two sides in the vertical direction of the adjacent side surfaces are formed by a rectangular surface having a right triangular prism space portion. .   The fixing material according to claim 1, wherein all four sides in the vertical direction of the side surface have a shape formed by a rectangular surface having a right triangular prism-shaped space portion.   The fixing material according to claim 1 or 2, wherein the right triangular prism is an isosceles right triangular prism.   The fixing material according to any one of claims 1 to 3, wherein the elastic material is rubber.   The fixing material according to claim 4, wherein the hardness of the rubber is 62 ± 5 degrees in Shore A.   6. The fixing material according to claim 1, wherein the side surface to which the oval through hole is adjacent is a side surface on the long side of the upper and lower surfaces.

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