JP3868887B2 - Construction method of soundproof wall in vehicle lane - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for constructing a soundproof wall in a traffic zone of an automobile, a railway vehicle or the like.
[0002]
[Prior art]
Conventionally, on roads and railways where vehicles and the like pass, noise is generated as the vehicles pass. A noise barrier is provided as a noise prevention measure. The soundproof wall includes a soundproof plate arranged upright at the end of the traffic zone, a soundproof material directly attached to the wall, etc., and the soundproof plate is made of H steel at regular intervals, and between the H steels. In most cases, the soundproof plate is inserted and attached. The soundproof plate itself is also made of concrete or metal with an uneven surface. Also, the sound absorbing material was simply made of concrete or metal having an uneven surface, or made of metal processed into a hollow inside.
[0003]
[Problems to be solved by the invention]
In the case of the above-mentioned conventional soundproof wall, in the case of the soundproof plate, the effect of insulating the noise to the outside is great, but considerable noise is reflected in the traffic zone, causing discomfort to the driver and passengers, which is not necessarily satisfactory. It was. On the other hand, the sound-absorbing plate has a small sound-absorbing effect when the surface is simply uneven, and the metal-made one processed into a hollow shape has a large sound-absorbing effect but is expensive in terms of cost, and requires a large amount of use. However, there were problems such as high construction costs.
[0004]
An object of the present invention is to provide a method for constructing a soundproof wall in a vehicle occupancy zone that uses a soundproof plate that is low in cost and has a high soundproofing effect, and has a soundproofing effect that is further enhanced by the mounting method of the soundproofing plate.
[0005]
Another object of the present invention is to provide a method for constructing a soundproof wall in a vehicle lane where construction is extremely simple.
[0006]
[Means for Solving the Problems]
In order to achieve this object, the present invention provides a soundproof plate body (2) in which at least a plurality of through holes (2a) are formed in a wall (1) constructed in advance at the end of a vehicle lane (A). sequentially large number attached Rutotomoni with constant distance apart from the wall (1), the soundproof plate body (2) is attached to the through hole the wall body inserted into (2a) the fitting (5) (1). The cross-sectional shape of the through hole (2a) is such that the front side (2b) of the soundproof plate body (2) is large and the back side (2c) is small, and the front side (2b) is directed toward the vehicle lane (A). Install the soundproof plate body (2).
[0007]
The soundproof plate body (2) is preferably attached to the wall (1) via a sound absorbing material (4) placed in the gap (3).
[ 0008 ]
The soundproof plate body (2) is made of concrete, plastic, metal, rubber, asphalt, or the like.
[ 0009 ]
The through hole (2a) preferably has a substantially trumpet cross-sectional shape.
[ 0010 ]
The wall body (1) is a side wall, a tunnel wall, a retaining wall, or the like that has already been constructed at the end of the vehicle traffic zone (A), and is made of concrete or metal panels in advance where there is no wall body (1). Thus, the wall body (1) is constructed at the end of the vehicle traffic zone (A).
[ 0011 ]
The soundproof plate body (2) has a large number of through holes (2a), and is made of asphalt such as concrete, plastic, metal, rubber or the like. In particular, concrete is made of precast concrete and has a reinforcing wire mesh inside. In concrete, rubber, and asphalt, if it is formed in a breathable porous shape, the entire soundproof plate body (2) increases the sound absorption in terms of the material, and the soundproofing effect is further enhanced.
[ 0012 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing a construction method of the present invention, FIG. 2 is an explanatory view in which a sound absorbing material is added by the construction method of the present invention, FIG. 3 is a front view of the construction state of the present invention, and FIG. FIG.
[ 0013 ]
In FIG.1 and FIG.2, (1) is a wall body and is constructed | assembled beforehand at the edge of a vehicle traffic zone (A). The wall (1) is mostly made of concrete and may be partially made of metal. And as a kind of this wall (1), it is a thing of a side wall, a tunnel wall, a retaining wall, etc. Further, at the location of the vehicle traffic zone (A) where these wall bodies (1) are not present, the wall body (1) may be constructed in advance with a concrete or metal panel.
[ 0014 ]
In FIG. 1, the soundproof plate body (2) having a large number of through holes (2a) is attached to the wall body (1) by separating the wall body (1) from the wall body (1) at a predetermined interval, and a large number of sheets are sequentially attached. ) And a soundproof plate body (2). This method has a high noise insulation effect.
[ 0015 ]
In FIG. 2, the soundproof plate body (2) is a construction method in which the soundproof plate body (2) is attached to the wall (1) through the sound absorbing material (4) placed in the gap (3), and is effective in terms of noise insulation and sound absorption effect. .
[ 0016 ]
The sound absorbing material (4) has a thickness that falls within the range of the gap (3), and for example, glass wool, foam rubber, or the like is used as the material. The sound absorbing material (4) is preferably attached to the wall body (1) with an adhesive or the like first, and then the soundproof plate body (2) is attached to the wall body (1). This sound-absorbing material (4) is slightly thinner than the gap (3) full thickness, leaving a little gap (3), so there is noise from the through hole (2a). Easy to pass and high soundproofing effect.
[ 0017 ]
Next, the fixture (5) used to mount the soundproof plate body (2) will be described. The fixture (5) is an anchor plug (5a) and a separator (5b) that are embedded in the wall (1). , Bolts (5c), and at least four corners of the through holes (2a) of the soundproof plate body (2) are used (see FIG. 3), and bolts ( 5c) is inserted, screwed into the anchor plug (5a) and tightened to attach the soundproof plate body (2) to the wall body (1). At this time, a cylindrical separator (5b) is inserted between the wall (1) and the soundproof plate body (2) by inserting a bolt (5c), and the separator (5b) A constant gap (3) is maintained between 1) and the soundproof plate body (2).
[ 0018 ]
The soundproof plate body (2) has a through-hole (2a) with a substantially trumpet cross-sectional shape as shown in FIG. 4, with the front side (2b) enlarged and the back side (2c) made smaller. That is, the through hole (2a) has a large opening on the front side (2b) of the soundproof plate body (2) and a small opening on the back side (2c). The soundproof plate body (2) is attached with the front side (2b) facing the vehicle lane (A). That is, it attaches so that a back side (2c) may face a wall body (1). The cross-sectional shape of the through hole (2a) may be tapered or stepped in addition to the substantially trumpet shape.
[ 0019 ]
【The invention's effect】
As described above, the present invention uses the soundproof plate body (2) having a large number of through holes (2a), and is separated from the wall body (1) by a certain distance and provided with a gap (3). The noise from the vehicle passing through the vehicle lane (A) hits the soundproof plate main body (2), and most of the noise is generated between the wall body (1) and the soundproof plate main body (2) from the many through holes (2a). Since it enters the gap (3) and escapes from above the gap (3), the soundproofing property is high.
[ 0020 ]
Moreover, the through hole (2a) of the soundproof plate body (2) has a large front side (2b), a small back side (2c), and the front side (2b) is mounted facing the vehicle lane (A). , Noise is diffusely reflected in the large through hole (2a) on the front side (2b) and cancels each other out to produce a silencing effect, and the front side of the through hole (2a) (2
b) Since the entrance is large, the sound collecting property is high, and the collected noise easily passes through the soundproof plate body (2), so that more noise enters the gap (3) and the soundproofing property is improved.
[ 0021 ]
Furthermore, since the soundproof plate body (2) can be attached to the wall body (1) using the through hole (2a) as it is, there is no need to process the soundproof plate body (2) on site, and the installation work However, the construction cost can be reduced. Also, the through hole (2a) has a large front side (2b), so the head or nut of the bolt (5c) enters the through hole (2a) and does not come out to the front side (2b) when installing. Can be constructed.
[ 0022 ]
In addition, when the sound absorbing material (4) is put in the gap (3), the noise that enters the gap (3) is absorbed by the sound absorbing material (4) and does not go outside, so it is more soundproof. However, it is extremely effective as soundproofing in the tunnel and the vehicle traffic zone (A) in the underpass.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a construction method of the present invention.
FIG. 2 is an explanatory view in which a sound absorbing material is added by the construction method of the present invention.
FIG. 3 is a front view of the construction state of the present invention.
FIG. 4 is a partial cross-sectional view of the soundproof plate of the present invention.
[Explanation of symbols]
A vehicle lane 1 wall 2 soundproof plate
2a Through hole
2b Front side
2c Back side 3 Clearance 4 Sound absorbing material 5 Fixture

Claims (2)

The soundproof plate body (2) having at least a large number of through holes (2a) formed in the wall (1) preliminarily constructed at the end of the vehicle lane (A) is separated from the wall (1) by a certain distance and sequentially large number mounting Rutotomoni, the soundproof plate body (2) comprises attached to the through-hole the wall body (2a) using the inserted fitting into the through hole (2a) (5) (1), wherein A clearance (3) is provided between the soundproof plate body (2) and the wall body (1), and the cross-sectional shape of the through hole (2a) is larger on the front side (2b) of the soundproof plate body (2). A method for constructing a soundproof wall in a vehicle traffic zone, characterized in that the back side (2c) is reduced and the soundproof plate body (2) is mounted with the front side (2b) facing the vehicle traffic zone (A).   The method for constructing a soundproof wall in a vehicle lane according to claim 1, wherein the soundproof plate body (2) is attached to the wall body (1) via a sound absorbing material (4) placed in the gap (3).

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