JPH09112193A - Mounting construction for interior finish board in tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install interior finish boards easily and without distortion in a tunnel. SOLUTION: Hanging hooks 3 are attached to the rear surface of the interior finish board 2 for tunnel, a backing member 5 is attached in a horizontal direction to a side wall surface 1 of the tunnel in response to the hanging hook 3, and a circular arc surface 51 is formed at least from the top surface to the side surface of the backing member 5. Hanging hooks 3 are hooked to the circular arc surface 51, and the interior finish boards 2 are suspended from the backing member 5. In this way, the hanging hooks 3 are hooked to the circular arc surface 51 of the backing member 41 and, even though anchor bolts 11 are driven slightly rough, no distortion occurs to the interior finish boards 2 mounted in the tunnel. Therefore, the workability can be improved, and the interior finish boards 2 in the tunnel can be easily attached.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tunnel interior plate mounting structure which is mounted on a side wall surface of a tunnel such as a road.

[0002]

2. Description of the Related Art Conventionally, as a mounting structure for a tunnel interior plate, a short L-shaped mounting member c is mounted on an anchor bolt b driven on a tunnel side wall surface a as shown in FIG. L consisting of horizontal part d and vertical part e
The horizontal portion d of the letter-shaped base material f is attached by bolts, a plurality of base materials f are attached horizontally along the tunnel, and the tunnel interior plate g is attached to the vertical portion e of the base material f.
In some cases, the inner surface of the tunnel g is attached to the base material f by pressing the inner surface of the tunnel g and the base material f with a nylon anchor (twist screw) h.

In Japanese Utility Model Laid-Open No. 4-53893, a reinforcing frame is fixed around a tunnel interior plate and a hook is attached to the reinforcing frame, while a short L-shaped attaching member as described above is attached to the side wall of the tunnel. The L-shaped base material including the horizontal and vertical parts attached by is attached horizontally along the tunnel, and by hooking the hook on the vertical part of the base material, the tunnel interior plate is provided with the base material. The mounting structure that is designed to be mounted on is described. In all of the above mounting structures, the tunnel interior plate is basically mounted via an L-shaped base material consisting of a horizontal portion and a vertical portion, and this base material is continuous along the tunnel. In order to attach the base member, the attachment member is located at the connecting portion of the base material and also serves as the connecting member.

[0004]

However, the above-mentioned mounting structure has the following problems. That is, when mounting the tunnel interior plate with the L-shaped base material as described above, it is necessary to mount the vertical parts of all the base materials in parallel without inclining to the side wall surface of the tunnel, or in the former conventional example. , The back surface of the tunnel interior plate pressed by the nylon anchor did not properly contact the vertical portion of the base material, but contacted the corner portions of the vertical portion and the horizontal portion, which might distort the tunnel interior plate. However, in order to attach the vertical parts of the base material in parallel, it is necessary to drive all the anchor bolts vertically to the side wall surface of the tunnel because the base material is attached by the anchor bolts via the attachment members. However, since the side wall surface of the tunnel is not always smooth and is curved up and down, it is difficult in terms of work to drive the anchor bolt accurately. In addition, if the vertical parts of all the base materials are not parallel to the side wall of the tunnel and are installed at an angle,
In the latter conventional example, the hook is not smoothly hooked on the vertical portion of the base material, which causes a problem that the work efficiency is reduced.

Further, when the tunnel interior plate is mounted with the L-shaped base material as described above, the above-mentioned short L-shaped mounting member is also commonly used as a connecting member for the base material. Although it is arranged at the connecting part, since the mounting member and the base material are mounted by bolts, an error inevitably occurs, the base material is not connected in a straight line, and twisting also occurs, and this is also mounted. This caused the tunnel interior plate to be distorted.

As described above, in the conventional mounting structure for mounting the tunnel interior plate by the L-shaped base material, in order to mount the tunnel interior plate without distortion and to facilitate the construction, the base material is accurately attached to the tunnel side. Since it is indispensable to install in parallel and straight to the wall surface without tilting, it was very troublesome.

Therefore, the present invention is intended to solve the above-mentioned problems and provide a tunnel interior plate mounting structure capable of easily mounting the tunnel interior plate without distortion.

[0008]

In order to achieve the above object, the present invention has the following arrangement. That is, in the structure for mounting a tunnel interior plate according to the present invention, a hanging hook is attached to the back surface of the tunnel interior plate, and a base material is horizontally attached to the side wall of the tunnel so as to correspond to the hanging hook, and the base material is attached. Of at least the upper surface to the side surface, and the hanging hook is hooked on the arc surface so that the tunnel interior plate is hung on the base material.

[0009]

Next, an embodiment of the present invention will be specifically described with reference to the drawings. That is, FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a sectional view of FIG. 1, FIG. 3 is an enlarged sectional view of an upper portion of FIG. 1, and FIG. 4 is a partially enlarged plan view of FIG. 5 is a perspective view of the tunnel interior plate portion, FIG.
2 is a perspective view of the base material of FIG. 1. FIG.

In the embodiment shown in FIGS. 1 to 6,
Reference numeral 1 is a tunnel side wall surface, 2 is a tunnel interior plate attached to the tunnel side wall surface 1, and has a vertically long rectangular shape that curves vertically along the tunnel side wall surface 1. Suspending hooks 3 are attached to the left and right edges of each of the two intermediate portions. The tunnel interior plate 2 is, for example, a metal plate such as a stainless steel plate whose surface is coated with an inorganic material, but is not necessarily limited thereto. Also this tunnel interior plate 2
The side edges may be folded back to the back side along the length direction to provide appropriate rigidity, or the vertical frame 41 and the horizontal frame 42 may be provided around the periphery as in this embodiment shown in detail in FIG. The reinforcing frame 4 composed of and may be attached. Further, the hanging hook 3 may be directly attached to the back surface of the tunnel interior plate 2, and when the reinforcing frame 4 is attached, the hanging hook 3 may be integrally attached to the reinforcing frame 4. Further, it may be attached to the reinforcing frame 4 and directly attached to the back surface of the tunnel interior plate 2. In order to integrally attach the hanging hook 3 to the reinforcing frame 4, it is preferable to integrally form the hanging hook 3 with an extruded mold material made of an aluminum alloy or the like, as it saves labor.

Reference numeral 5 is a base material, which is the tunnel interior plate 2
They are attached to the tunnel side wall surface 1 in parallel in the vertical direction so as to correspond to the hanging hooks 3 attached to the upper, lower, and middle portions of the rear surface of the. The base material 5 is a long body having an arc surface 51 at least from the upper surface to the side surface.
The hanging hook 3 is hooked on the tunnel interior plate 2
Is hung on the base material 5.

The base material 5 may be attached directly with a gap between it and the tunnel side wall surface 1.
In this embodiment, first, anchor bolts 11 are driven at two positions, that is, an upper portion, a lower portion and an intermediate portion, which substantially correspond to the suspension hooks 3 on the tunnel side wall surface 1, and two nuts 12 are screwed into the anchor bolts 11. The short L-shaped attachment member 6 is attached by sandwiching and the L-shaped attachment piece 52 is attached to the lower portion of the base material 5, and the attachment piece 52 is attached.
The base material 5 is attached to the attachment member 6 by abutting the horizontal piece 53 and the horizontal portion 61 of the attachment member 6 and tightening with the bolt 7.

In this case, in this embodiment, as described above, the base material 5 is used.
From the upper surface to the side surface of the circular arc surface 51, the circular arc surface 5
Since the hanging hook 3 is hooked on the anchor bolt 1, the base material 5 is attached to the anchor bolt 11 via the attachment member 6 as in the conventional case, but the anchor bolt is attached to the tunnel side wall surface 1. Even if the base material 5 is not tilted vertically but is attached obliquely to the tunnel side wall surface 1, the hanging hook 3 is smoothly hooked by sliding on the circular arc surface 51. Therefore, even if the anchor bolts 11 are slightly roughed, the attached tunnel interior plate 2 is not distorted and the workability is improved.

The base material 5 is not particularly limited in shape as long as it has an arcuate surface 51 at least from the upper surface to the side surface, and may be formed in a semicircular shape, for example. Thus, the arcuate surface 51 may be formed from a hollow circular pipe. When the arcuate surface 51 is formed of a hollow circular pipe, a metal pipe such as a steel pipe, a stainless steel pipe, or an aluminum alloy pipe having such a shape can be used as it is for the base material 5, so that it is easy to make and the semicircular shape. Even if the anchor bolt 11 is rougher than the above, the hanging hook 3 can be hooked smoothly.

Regarding the shape of the hanging hook 3,
To make it easier to hook the hanging hook 3,
The inner surface of the hanging hook 3 hooked on the circular arc surface 51 of the base material 5 has a concave circular arc surface 31 having a shape corresponding to the circular arc surface 51.
It is preferable that the hanging hook 3 once hooked on the circular arc surface 51 is easily moved upward even when an external force for lifting the tunnel interior plate 2 acts due to vibration of a passing vehicle or wind pressure. The concave arc surface 31 of the hanging hook 3 is made slightly smaller than the circular arc surface 51 of the base material 5 so as not to come off or come off, and the concave arc surface 31 is hooked on the circular arc surface 51 while expanding. Therefore, it is preferable that the concave arc surface 31 is elastically brought into contact with the arc surface 51 so as not to come off easily, and it is more preferable that the claw piece 32 is projected.

As for the method of connecting the base material 5, the mounting member 6 may be arranged at the connecting portion of the base material 5 and the mounting member 6 may be used as the connecting member as in the prior art. In order to connect to the base material 5, it is preferable that the base material 5 is hollow as in the present embodiment, and the base material 5 is sequentially connected by inserting the inner sleeve 8 into the hollow. There is no protrusion that interferes with the mounting of the tunnel interior plate 2 at the connecting portion, the base material 5 is connected in a straight line, the arc surface 51 is formed on the base material 5, and so on. The lower hook 3 is more easily hooked, and distortion of the attached tunnel interior plate 2 is further prevented.

In this embodiment, the tunnel interior plate 2 is attached by hooking the hanging hook 3 attached to the back surface of the tunnel interior plate 2 to the base material 5, but in addition to this, the tunnel interior plate 2 is further added. Known means for further fixing the base material 5 and the base material 5 may be appropriately adopted.

[0018]

According to the present invention, the tunnel interior plate can be attached to the base material by simply hooking the hanging hook attached to the back surface of the tunnel interior plate on the base material. Since the hook is designed to be hooked on the arc surface formed from the top surface to the side surface of the base material, even if the anchor bolts are slightly rough, the installed tunnel interior plate will not be distorted. Therefore, the workability is improved, and the tunnel interior plate can be easily attached.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is an enlarged cross-sectional view of the upper part of FIG.

FIG. 4 is a partially enlarged plan view of FIG.

5 is a perspective view of a tunnel interior plate portion of FIG. 1. FIG.

6 is a perspective view of the base material of FIG. 1. FIG.

FIG. 7 is a cross-sectional view showing a conventional tunnel interior plate mounting structure.

[Explanation of symbols]

 1 Tunnel Side Wall Surface 11 Anchor Bolt 12 Nut 2 Tunnel Interior Plate 3 Hanging Hook 31 Concave Arc Surface 32 Claw Piece 4 Reinforcement Frame 41 Vertical Frame 42 Horizontal Frame 5 Base Material 51 Arc Surface 52 Mounting Piece 53 Horizontal Piece 6 Mounting Member 61 Horizontal Part 7 Bolt 8 Inner sleeve

Claims (6)

[Claims] 1. A suspension hook is attached to a back surface of a tunnel interior plate, a base material is attached horizontally to a side wall of the tunnel in correspondence with the suspension hook, and an arcuate surface is formed from at least an upper surface to a side surface of the base material. Was made
A mounting structure for a tunnel interior plate, characterized in that a suspension hook is hooked on the arc surface so that the tunnel interior plate is suspended on a base material. 2. The mounting structure for a tunnel interior plate according to claim 1, wherein a reinforcing frame is attached to a peripheral edge portion of the tunnel interior plate, and a hanging hook is attached to the reinforcement frame. 3. The mounting structure for a tunnel interior plate according to claim 1, wherein the base material is hollow, and an inner sleeve is inserted into the hollow to sequentially connect a plurality of base materials. . 4. The mounting structure for a tunnel interior plate according to claim 1, 2 or 3, wherein the arcuate surface of the base material is formed of a hollow circular pipe. 5. The tunnel interior plate according to claim 1, 2, 3 or 4, wherein an inner surface of the hanging hook hooked on the arc surface of the base material is a concave arc surface corresponding to the arc surface. Mounting structure. 6. The tunnel interior plate mounting structure according to claim 5, wherein the concave arc surface of the suspension hook is slightly smaller than the arc surface of the base material.