KR20040021811A - Construct for sound-absorbing the subway tunnel using the foamed alumium - Google Patents

Abstract

PURPOSE: A soundproof structure of a subway tunnel using foam aluminum is provided to install to a lateral wall of a subway tunnel without hindrance to the operation of a subway. CONSTITUTION: The soundproof structure of a subway tunnel using foam aluminum comprises the steps of arranging/fixing brackets(21) on an internal wall(5) of a subway tunnel using a fixture(11) such as an anchor bolt at regular intervals, fixing a foam aluminum panel(31) on the bracket(21) using a fixture(35) such as a stapler, a screw nail, etc. and reinforcing the foam aluminum panel(35) by a stiffener(41).

Description

Structure for sound-absorbing the subway tunnel using the foamed alumium}

The present invention relates to a soundproof structure of a subway tunnel using foamed aluminum, and more specifically, a "┏┛" shaped cub bracket is fixed to an inner wall of a subway tunnel, and foamed aluminum is fixed to the cub bracket so that a soundproof wall of a subway tunnel is provided. It relates to a soundproof structure of a subway tunnel using foamed aluminum to form a.

In general, the soundproofing materials are widely used, such as general construction materials such as wood or concrete, synthetic resin materials such as polyurethane, polyethylene or polyester, inorganic fibers such as glass wool or rock wool, and metal materials such as metal perforated plates alone. It is used or used in combination.

However, the soundproofing material as described above has a problem that it cannot be installed on the inner wall of the subway tunnel having a large volume and a small distance from the subway.

Therefore, an object of the present invention is a simple soundproof structure that is fixed to the inner wall of the subway tunnel of the "┏┛" shape of the subway tunnel, and the foamed aluminum that can be easily installed in the existing subway tunnel with a simple soundproof structure It is to provide a soundproof structure of the subway tunnel used.

One example of the soundproof structure of a subway tunnel using foamed aluminum according to the present invention for achieving the above object is that the mounting bracket of the "┏┛" shape by a fixing means such as anchor bolts on the inner wall of the subway tunnel at regular intervals. Arranged and fixed, the foamed aluminum panel is fixed to the mounting bracket by fixing means such as staplers, screws, etc., the foamed aluminum panel is reinforced by a reinforcing material.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic diagram of a soundproof structure of a subway tunnel using foamed aluminum according to the present invention;

2 is an enlarged detailed view of the soundproof structure of FIG.

* Description of Signs of Main Parts of Drawings *

5: inner wall of subway tunnel 11, 35: fixing means

21 mounting bracket 31: foamed aluminum panel

41: reinforcement

Referring to FIG. 1, the soundproof structure of a subway tunnel using foamed aluminum according to the present invention is a mounting bracket 21 having a “┏┛” shape by fixing means 11 such as an anchor bolt on an inner wall 5 of a subway tunnel. ) Is arranged and fixed at regular intervals, and the foamed aluminum panel 31 is fixed to the mounting bracket 21 by fixing means 35 such as a stapler, a screw, and the like.

In addition, in the soundproof structure of the subway tunnel using the foamed aluminum, the foamed aluminum panel 35 may be reinforced by the reinforcing material 41 so that the foamed aluminum panel 35 may be firmly fixed to the mounting bracket 21.

Referring to the installation example of the soundproof structure of the subway tunnel using foamed aluminum according to the present invention in detail with reference to Figure 2, so that the first row mounting bracket (21a) is arranged on the lower end of the first foamed aluminum panel (31a) The first row mounting brackets 21a are installed on the inner wall 5 of the subway tunnel, and the second row mounting brackets 21b disposed on the first row mounting brackets 21a are disposed on the first foamed aluminum panel. The stapler is placed against the boundary between the first foamed aluminum panel 31a and the second foamed aluminum panel 31b so as to simultaneously fix the upper end of the 31a and the lower end of the second foamed aluminum panel 31b. The first foamed aluminum panel 31a and the second foamed aluminum panel 31b are simultaneously fixed to the second row mounting bracket 21b by fixing with fixing means 35 such as a screw. Subsequently, in the same manner, the third foamed aluminum panel 31c is disposed on the second row aluminum panel, and the reinforcing material 41 (reinforcement band plate) is placed between the boundary lines of the first foamed aluminum panel 31c and the second foamed aluminum panel 31b. By fixing to the fixing means 35, such as a stapler, screws, etc. can be installed to the soundproof structure of the present invention.

Thus, for example, in the case of installing the soundproof structure of a subway tunnel using foamed aluminum according to the present invention in a subway tunnel in which the distance S between the side wall 5 and the subway 7 is about 250 to 300 mm, the present invention According to the soundproof structure according to the distance (d) installed on the side wall 50 ~ 80mm does not interfere with the operation of the subway, the foamed aluminum panel is rigid and can withstand the external environment such as pressure generated during the operation of the subway, and already well As is known, porous foamed aluminum itself has excellent sound absorption performance, which can significantly reduce subway noise.

As described above, the soundproof structure of the subway tunnel using the foam aluminum according to the present invention does not interfere with the operation of the subway, there is an effect that can be easily installed on the side wall of the subway tunnel.

Claims (1)

Mounting brackets 21 having a “┏┛” shape are arranged and fixed at fixed intervals by fixing means 11 such as anchor bolts on the inner wall 5 of the subway tunnel, and foamed aluminum panels are mounted on the mounting brackets 21. Soundproof structure of a subway tunnel using foam aluminum, characterized in that 31 is fixed by fixing means 35 such as staplers, screws, etc., and the foamed aluminum panel 35 is reinforced by the reinforcing material 41.