JP2017137644A - Temporary soundproof house for tunnel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a temporary soundproof house for a tunnel, which can be easily installed and removed.SOLUTION: A temporary soundproof house for a tunnel is installed in front of a tunnel entrance 1 to prevent noises from being generated in association with execution of work near the entrance 1. A plurality of arch members 21 are coupled together by accouplement 22. A face bar 23 is installed on the outer periphery of the arch member or between flanges. The temporary soundproof house for the tunnel is covered with a sheet 24. A steel timbering material for the tunnel is used as the arch member 21 to facilitate installation and removal.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a soundproof house for tunnels for reducing noise generated during tunnel construction.

Conventionally, a measure for installing a soundproof door at a wellhead has been generally used for noise generated by tunnel construction. However, soundproof doors can be installed only after tunnel excavation has progressed and the construction of the pit has been completed. Patent Document 1 discloses a soundproof house installed in front of a wellhead. Since this type of soundproof house is installed for the purpose of insulating the blasting sound during tunnel construction, the sound insulation performance is high, but the ease of installation and removal is not considered.
The conventional soundproof house for tunnels takes time and labor when it is installed and removed immediately after the start of construction near the wellhead or after completion.

Japanese Patent Laid-Open No. 20009-62760

Depending on the tunnel construction site, it may be necessary to install and remove immediately after the construction near the pit.
Therefore, the present invention provides a temporary soundproof house that is easy to install and remove.

The present invention is a soundproof house for tunnel wellhead constructed using materials and equipment used for tunnel construction, and has the following configuration.
1. 1st invention of this application is the soundproof house for tunnels comprised by the arch material, the connection material, the face material, the sheet | seat, and the soundproof door,
A plurality of arch materials, which are steel support materials for tunnels, are arranged side by side, adjacent arch materials are connected by the connecting material, face materials are arranged to form a peripheral wall surface, the outer periphery of the face material is covered with a sheet, and facing the wellhead Temporary soundproof house characterized in that the wife's face is open and the other wife's face is equipped with a soundproof door.
2. 1. A sound absorbing layer is provided between the face material and the sheet. The soundproof house described.
3. 1. A large number of small holes are provided. The soundproof house described.

In the present invention, at least the arch material used for the tunnel support work is used as a framework, so that the material and construction equipment for tunnel construction can be used, and the installation or removal of the soundproof house for the tunnel can be facilitated.
In addition, after removal, the materials used in the temporary soundproof house can be used for the main tunnel, so no waste is generated or there is no need to transport materials.
Moreover, since it is a temporary soundproof house having the same cross section as the tunnel shape, it is possible to transport and work tunnel construction machines and materials with the same consciousness as inside the tunnel, which is suitable for safety management.

It is a perspective view explaining the whole structure of the temporary soundproof house for tunnels of this invention. It is a perspective view explaining the whole structure of the temporary soundproof house for tunnels of this invention. It is a cross-sectional view explaining 1st embodiment of this invention. It is sectional drawing explaining 2nd embodiment of this invention. It is sectional drawing explaining 3rd embodiment of this invention. It is sectional drawing explaining 3rd embodiment of this invention.

The temporary soundproof house of the present invention is installed at the tunnel entrance at the initial stage of tunnel construction formed using a tunnel arch material as a framework.
The temporary soundproof house is composed of a plurality of arch materials that form a framework, a connecting material that connects a plurality of arch materials in the horizontal direction, a plate-like face plate material that forms the peripheral surface of the house, a sheet material that covers the outer surface, and a wife It has a wife wall with a soundproof door on the side.
The hypothetical soundproof house is in close contact with the ground on the same surface of the open mouth, forming a sealable space in the installed state, blocking the noise associated with the mouth construction and exerting a soundproof effect on the surroundings .
When it is necessary to improve the soundproofing performance, a sound absorbing material or a sound absorbing structure is added.
In the present invention, materials used for tunnel construction are used as the main structural material of the soundproof house such as arch material and face material, so that the equipment for tunnel construction can be used for construction or removal work of the soundproof house. Since the removed material can also be used for tunnel construction, the amount of waste generated can be reduced.

[Arch material]
As the arch material, an arch type steel frame material used as a tunnel support is used. H-section steel. Set up multiple lines at intervals.
[Connecting material]
The connecting material is a bar-shaped reed material that connects adjacent arch materials. Steel bars, angle steels, channel steels, pipes, etc.
[Face material]
The face material is a plate-like material. Arranged on the skeleton to form a shell. Wooden sheet piles used in tunnels can be used. In addition to wooden materials, steel plates may be used. Demonstrates sound insulation.
[Sheet material]
The sheet material is a surface covering material such as a vinyl sheet and blocks rain and the like.
[Sound absorbing material]
The sound-absorbing material (sound-absorbing structure) functions to enhance the soundproofing effect by forming a material that exhibits sound-absorbing properties, a sound-absorbing structure provided with small holes, and the like.
[Other]
The entrance of the soundproof house will be provided on the side of the wife wall or arch opposite to the wellhead. The entrance / exit provided on the side of the Tsumari wall is used in the same arch shape as the tunnel cross section, so the entrance / exit can be reused by moving to the entrance after removing the erected soundproof house.

≪How to build≫
While building multiple arches, connect adjacent arches with connecting materials to create a self-supporting framework. The interval between the arch members is set to an interval at which the face material can be passed.
A face material is attached between the built arch materials, and the arched surface is covered with the face material. The face material can be inserted between the inner and outer flanges of the H-shaped steel, or can be provided along the outer surface of the outer flange.
An arch portion is formed on the face material by covering with a sheet material.
When the entrance / exit is formed on the side of the wife wall, a door frame for entering and exiting is provided at the center of the wife's arch material in the cross-sectional direction, and the connecting material is lying on the side so that the left and right sides of the wife's arch material are connected. The part connects the door frame and the end face arch material to form a frame of the end face, the door is attached to the door frame, and the other part is attached with the face material and covered with a sheet material.
As equipment used for arch construction, etc., a heavy machine equipped with an ejector boom that uses a steel support material for tunnels during construction can be used. Therefore, when assembling the arch material and the connecting material, it is not necessary to separately arrange heavy machinery.

≪Removal method≫
Removal can use heavy equipment for tunnels as well as erection, and work can be done by familiar tunnel workers without having to arrange special workers or contractors.

≪State near the entrance after removal≫
After the tunnel has been dug to a certain extent and a silencer and soundproofing device can be installed at the entrance of the tunnel, the temporary soundproofing house will be removed and an entrance will be set up at the wellhead.
The temporary soundproof house can be used for the work site, attached plant, and luggage yard after the removal, improving the efficiency of tunnel work.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The temporary soundproof house for tunnels of the first embodiment shown in FIG. 2 (hereinafter referred to as soundproof house 2) shows a state where it is installed in front of the wellhead 1.
1 and 2 illustrate the overall configuration of the soundproof house 2. FIG.
The soundproof house 2 includes an arch material 21, a connecting material 22, a face material 23, a seat 24, and a soundproof door 3.
The soundproof house 2 is required when constructing the vicinity of the wellhead, and the assembly is required to be completed immediately. Therefore, the installation of the soundproof house 2 is facilitated if heavy equipment placed on site and a highly versatile material that can be easily arranged can be used.

The arch material 21 is a steel support material for tunnels of H-shape steel used in tunnel support work.
The connecting material 22 uses a grooved steel that can be easily procured. The connecting material may be angle steel, groove steel, H-shape steel, pipe, bar, or the like, and the material may be steel, resin, or wood.
Since the arch material 21 uses a steel support material for tunnels, it is possible to use a heavy machine equipped with an ejector boom that uses the steel support material for tunnels during the construction of the tunnel. Therefore, when assembling the arch material 21 and the connecting material 22, it is not necessary to separately arrange heavy machinery.
As shown in FIG. 1, the arch material 21 is connected in the tunnel axis direction by a connecting material 22 to form a framework.

After the assembly of the arch material 21 and the connecting material 22 is completed, the face material 23 is installed.
A wooden sheet pile was used for the face material 23. Wooden sheet pile is a cheap and affordable material. Further, the wooden sheet pile has a thickness of about 3 cm and is excellent in sound absorption. Furthermore, it is easy to assemble because it is wooden and lightweight.
The face material 23 may be fitted to the outside of the arch material 21 or may be installed between the flanges by utilizing the fact that the arch material 21 is H-shaped steel.
After the installation of the face material 23 is completed, the sheet 24 is installed. The sheet 24 is installed outside the face material and covers the whole. As the sheet 24, a soundproof sheet made of vinyl chloride can be used. If a sheet made of a synthetic resin having a waterproof property is used for the sheet 24, not only the intrusion of rainwater but also the soundproofing effect can be enhanced.

  Finally, the soundproof door 4 is installed. The installation of the soundproof door 4 may be performed before the framework or formation, or may be performed after the installation of the face material 23, and is not affected by other construction, so the installation time is not limited. As the soundproof door 4, a known soundproof door may be used, and a wall made of a combination of H-shaped steel and wooden sheet piles was used. Known soundproof doors include a support fixed soundproof door, a sled soundproof door, and a wellhead fixed soundproof door, and may be appropriately selected according to the situation at the site.

When the construction near the wellhead 1 is completed and the soundproof house 2 is no longer needed, it is necessary to immediately remove the soundproof house 2 so as not to hinder the construction. When removing the soundproof house 2, it is only necessary to use heavy equipment used in construction, as in assembly, and there is no need to facilitate heavy equipment.
When the steel support material for tunnels is used for the arch material 21, the steel support material for tunnels after dismantling can be used as the support material for the main installation. Therefore, there is no disposal cost or transportation cost.
The soundproof door 3 is installed at the wellhead after the construction near the wellhead is completed and is used until the tunnel construction is completed.

Example 1
In FIG. 3, sectional drawing explaining 1st embodiment is shown. After the assembly of the arch material 21 and the connecting material 22 was completed, the face material 23 was installed on the outer periphery of the arch material 21 and was installed so as to cover the sheet 24 on the outer periphery of the face material 23.

Example 2
FIG. 4 shows an enlarged cross-sectional view for explaining the second embodiment.
In the second embodiment, the face material 23 is installed between the flanges of the arch material 21. Moreover, the soundproof performance can be further enhanced by installing the sound absorbing layer 4 between the flanges. A known material may be used for the sound absorbing layer 4, and examples thereof include urethane, rock wool, and glass wool.

Example 3
5 and 6 are enlarged cross-sectional views for explaining the third embodiment.
As shown in FIG. 5, the sound absorption is further enhanced by opening holes 231 in the face material 23. At that time, the sound absorbing layer 4 is provided between the face material 23 and the sheet 24 as in the second embodiment. Further, as shown in FIG. 6, a face material 23 thinner than the web is installed between the flanges of the arch material 21, and the air layer 5 is provided in the remaining space.

1: Wellhead 2: Temporary soundproof house 21 for tunnel: Arch material 22: Connecting material 23; Face material 231: Hole 24: Seat 3: Soundproof door 4: Sound absorbing layer 5: Air layer

Claims (3)

A temporary soundproof house for tunnels, which is installed in front of the tunnel wellhead and is composed of arch materials, connecting materials, face materials, sheets and soundproof doors,
The arch material is a steel support material for tunnel of H-shaped steel, the plurality of arch materials are connected by the connecting material, and the face material is installed between an outer periphery or a flange of the arch material, and the face material A temporary soundproof house for tunnels, characterized in that the outside is covered with the sheet, and the soundproof door is installed on the end surface opposite to the wellhead.   The temporary soundproof house for tunnels according to claim 1, wherein a sound absorbing layer is provided between the face material and the sheet.   The temporary soundproof house for a tunnel according to claim 1 or 2, wherein a hole is provided in the face material.

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