JP5031399B2 - Soundproof structure - Google Patents

Description

  The present invention relates to a soundproofing structure such as a soundproofing house, and in particular, a soundproofing structure capable of performing dismantling and reassembly easily and in a short time and greatly improving sound insulation properties even when moving on-site as construction progresses. It is about things.

  For example, as a soundproofing measure for tunnel construction, a soundproofing house or the like for earth and sand unloading facilities at a shield work is installed on the site, thereby reducing construction noise and environmental conservation.

  Such a soundproof house is assembled and installed at the site, and when moving on the site as construction progresses, it must be disassembled and reassembled.・ A work period for reassembly is required.

  In addition, this soundproof house generally has a structure in which a sound insulation panel is attached to a steel frame, but this sound insulation panel is used on highways and high-speed railways and so on. As a result, sound insulation may be insufficient.

  In view of the problems of the conventional soundproof structure, the present invention can perform dismantling and reassembly easily and in a short period of time, and greatly improve the sound insulation, even when moving on-site as construction progresses. The object is to provide a soundproof structure.

In order to achieve the above object, the soundproofing structure of the present invention is a soundproofing structure that is installed at a tunnel well opening and absorbs internal noise by a soundproofing panel disposed on a wall surface . A side wall, a ceiling wall erected on the upper side of the side wall, and a front wall and a rear wall erected on the front and rear sides of the side wall, wherein the side wall, the ceiling wall, the front wall, and the rear wall have a plurality of H shapes. with a steel groove between flanges arranged at predetermined intervals so as to face, Ri Do from a structure of the acoustic panel is disposed doubly spaced apart so as to fit the concave groove, the front wall and The vehicle door is installed on the rear wall with the position shifted.

  In this case, the H-shaped steel groove can be partitioned in the width direction, and the soundproof panel can be fitted into the partitioned groove.

According to the soundproof structure of the present invention, the soundproof structure is assembled by assembling the frame of the soundproof structure with the H-shaped steel and fitting the soundproof panel into the groove between the flanges of the assembled H-shaped steel. Thus, the soundproof structure can be disassembled and reassembled easily and in a short time even when the work site is moved along with the progress of the construction.
And since the sound insulation panels are arranged in the groove of the H-shaped steel with a gap, the sound insulation is greatly improved in combination with the space formed between the sound insulation panels, and a large noise is generated. The soundproofing at the tunnel construction site can be performed sufficiently.

  In addition, the H-shaped steel groove is partitioned in the width direction, and the soundproof panel is fitted and inserted into the partitioned groove, thereby improving the assemblability of the soundproof panel and improving the positional accuracy and sound insulation. Further improvement can be achieved.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a soundproof structure according to the present invention will be described with reference to the drawings.

1 to 2 show an embodiment of a soundproof structure according to the present invention.
This soundproof structure absorbs internal noise by a soundproof panel 1 disposed on a wall surface 4, and a plurality of H-section steels 2 are arranged at predetermined intervals so that the concave grooves 3 between the flanges face each other. In addition, the soundproof panel 1 is disposed in a double manner with a gap so as to fit in the groove 3.

The soundproof structure includes a pair of side walls 4a, a ceiling wall 4b erected on top of the side walls 4a, and a front wall 4c and a rear wall 4d erected on the front and rear sides of the side wall 4a.
The side wall 4a, the ceiling wall 4b, the front wall 4c, and the rear wall 4d are each provided with a plurality of H-shaped steels 2 at predetermined intervals so that the concave grooves 3 between the flanges face each other. The soundproof panel 1 has a structure in which the soundproof panels 1 are disposed in a double manner at intervals so as to be fitted.
As shown in FIGS. 1 (c) and 1 (d), a vehicle door 41 is installed on the front wall 4c and the rear wall 4d while being shifted in position, and a human door 42 is provided separately on the rear wall 4d. Is installed.

The soundproof panel 1 is used for a sound insulation wall installed on a highway or the like, and includes a rectangular case 11 having a hollow section made of a metal plate such as a steel plate or an aluminum plate, a resin member, or the like, and a sound absorption side of the case 11. A plurality of louvers 12 cut and raised on the surface and a sound absorbing material 13 accommodated in the case 11 are provided.
The louver 12 is an opening that guides sound into the case 11, and sound entering from the louver 12 is absorbed by a sound absorbing material 13 such as glass wool accommodated in the case 11.
The soundproof panel 1 has an end shape in which the adjacent ones in the width direction are fitted, and a plurality of the soundproof panels 1 are arranged in the groove 3 of the H-section steel 2 so that the soundproof panels 1 are laminated in the width direction. Established.

The H-section steel 2 is integrated on each wall surface 4 by connecting a plurality of H-section steels 2 arranged in the width of the soundproof panel 1 with bolts or the like by the H-section steel 2 or other steel materials as an outer frame. Yes.
The groove 3 of the H-shaped steel 2 is partitioned in the width direction of the groove by a partition member 5, and the soundproof panel 1 which is doubled inside and outside is arranged such that the sound absorption side faces inward in the partitioned groove 3. Is inserted.
FIG. 3 shows a comparison of sound transmission loss between the case where the soundproof panel 1 is doubled at intervals as in the present embodiment and the case where the soundproof panel 1 is doubled as a comparative example. Indicates.
In the figure, A1 is the soundproofing structure of the present embodiment in which the soundproofing panels 1 are doubled with an interval of 180 mm, and A2 is the present example in which the soundproofing panels 1 are doubled with a spacing of 30 mm. The soundproof structure B is a soundproof structure of a comparative example in which the soundproof panels 1 are arranged in a single layer.

Thus, the soundproofing structure of this embodiment is a soundproofing structure in which the internal noise is absorbed by the soundproofing panel 1 disposed on the wall surface. Since the soundproof panel 1 is disposed twice with an interval so as to fit in the groove 3, the frame of the soundproof structure is assembled with the H-shaped steel 2. The soundproofing structure 1 can be installed by fitting the soundproofing panel 1 into the groove 3 between the flanges of the assembled H-shaped steel 2, so that the soundproofing can be performed even when moving on site as the construction progresses. The structure can be easily disassembled and reassembled in a short time.
And since the soundproof panel 1 is disposed in the concave groove 3 of the H-shaped steel 2 with a space therebetween, the sound insulation is greatly improved in combination with the space formed between the soundproof panels 1, Soundproofing can be sufficiently performed at tunnel construction sites where large noise is generated.

  In addition, the groove 3 of the H-shaped steel 2 is partitioned in the width direction, and the soundproof panel 1 is fitted into the partitioned groove 3 to improve the assemblability of the soundproof panel 1 and improve the positional accuracy. The sound insulation can be further improved.

  As described above, the soundproof structure of the present invention has been described based on the embodiments thereof, but the present invention is not limited to the configurations described in the above embodiments, and appropriately combines the configurations described in the embodiments. The configuration can be changed as appropriate without departing from the spirit of the invention.

  As described above, the soundproof structure of the present invention has a characteristic of greatly improving sound insulation while performing dismantling and reassembly easily and in a short period of time even when moving on-site as construction progresses. It can be suitably used for the use of a soundproof house for tunnel construction.

An example of the soundproof structure of the present invention is shown, (a) is a side view thereof, (b) is a plan view thereof, (c) is a rear view thereof, and (d) is a front view thereof. The soundproof structure is shown, (a) is a cross-sectional view showing an H-shaped steel and a soundproof panel, (b) is a vertical cross-sectional view, and (c) is a perspective view of the soundproof panel. It is a graph which shows the sound transmission loss of the soundproof structure and a comparative example.

DESCRIPTION OF SYMBOLS 1 Soundproof panel 11 Case 12 Louver 13 Sound absorption material 2 H-section steel 3 Concave groove 4 Wall surface 5 Partition member

Claims (2)

In a soundproof structure that is installed at a tunnel well and absorbs internal noise by a soundproof panel disposed on a wall surface, the soundproof structure includes a pair of side walls and a ceiling wall that is laid on top of the side walls. A front wall and a rear wall that are erected on the front and rear sides of the side wall, and the side wall, the ceiling wall, the front wall, and the rear wall are formed at a predetermined interval so that the concave grooves between the flanges face each other. as well as arranged, Ri Do from a structure of the acoustic panel is disposed doubly spaced apart so as to fit the concave groove, that is installed by shifting the position of the vehicle door to the front and rear walls A soundproof structure.   The soundproof structure according to claim 1, wherein the groove of H-shaped steel is partitioned in the width direction, and a soundproof panel is fitted into the partitioned groove.

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