JP2005126919A - Mounting structure for sound insulating wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the mounting structure for a sound insulating wall shortening a construction period and reducing costs in the new installation of the sound insulating wall and in repair work after an accident by reducing the number of parts and working man-hours. <P>SOLUTION: A cover 10 is composed of a fixed side panel 10A formed in approximately L-shape comprising an upper face part 10a with both longitudinal ends placed on receiving faces formed of the upper faces of reinforcing ribs 13 between both posts 3, 3, and a side face part 10b on the anti-driveway side B, while another side face is opened (10c); and a screening panel 10B detachably mounted to the opening 10c side edge part of the fixed side panel 10A by bolts and nuts 14 to close the opening 10c part of the fixed side panel 10A. Both longitudinal ends of the upper face part 10a of the cover 10 are respectively formed with two slits 10d, 10d that can be engaged in the inserted state of both flange parts 3a, 3a of H-shape steel constituting a post 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a soundproof wall mounting structure that is installed along a highway or the like, and in particular, it is possible to quickly and cost-effectively perform a soundproof wall restoration work in which measures to prevent a column from falling due to a rear-end collision or the like. The present invention relates to improvement of a soundproof wall mounting structure.

Some noise barriers are installed along the expressway, and in particular, measures are taken to prevent falling so that the pillars that are torn down due to a collision accident, etc. fall under the overpass and do not cause a secondary disaster (conventional example 1). ).
FIG. 5 shows a soundproof wall mounting structure according to the conventional example 1 in which this fall prevention measure is taken. In the figure, reference numeral 1 denotes a highway partition wall (high rail), F is a roadway side (noise generating side), B Is on the anti-roadway side. In addition, 2a and 2b are anchor bolts planted in the road partition wall 1, and 3 is a column to which the base plate 4 is fixed by the anchor bolts 2a and 2b. The main body is formed of H-shaped steel. H-shaped steel flanges 3a and 3a are erected toward the roadway side F and the anti-roadway side B.

  Reference numeral 5 denotes a hole formed in the lower end of the web 3b in the support column 3. For example, one hole is provided in each of the support columns 3, 3,. By inserting the wire ropes 6 one after another and fixing both ends, even if the column 3 is brought down from the road partition wall due to a rear-end collision of the vehicle, the wire ropes 6 support and fall down under the overpass. This prevents the development of secondary disasters.

  Reference numeral 7 denotes a cover for protecting the wire rope 6 and is referred to as a lower panel. As shown in the figure, this lower panel 7 uses a single thin steel plate, is composed of a roadway side plate 7a, a top plate 7b, and an anti-roadway side plate 7c, and has a rectangular cross section with the bottom open. The length is provided between the columns 3-3. In addition, 8 is a support part arrange | positioned at the both ends of the lower panel 7, and it earth | grounds to the base plate 4 and stabilizes this lower panel 7. FIG.

  Reference numeral 9 denotes a sound absorbing plate, and the sound absorbing plate 9 is inserted from the upper end of the columns 3 and 3 into a groove formed between both the flanges 3a and 3a. The mounting state is achieved by placing the upper panel 7 b of the lower panel 7. Since the sound absorbing plate 9 is low in length, for example, a good soundproof elevated is obtained by stacking in three or four stages.

However, the conventional example 1 has the following problems.
That is, when a specific support 3 has to replace the wire rope 6 due to an accident or the like, first, the wire rope 6 that has been passed through to prevent the fall accident is inserted into the support 3 for one span. After removing the broken support column 3, the sound absorbing plate 9, the partition wall 1, etc., and then repairing or repairing the broken support column 3, the new wire rope 6 is again inserted into the holes 3, 5,. There must be.

  However, the conventional lower panel 7 covering the wire rope 6 was integrally formed by using a single thin steel plate and bent so as to have a rectangular cross section, so the entire lower panel 7 was removed. However, since the sound absorbing plate 9 is placed on the upper part of the lower panel 7, the sound absorbing plate 9 must also be removed. It is possible to expose the wire rope 6 by removing it, but since the lower panel 7 is provided between all the columns 3-3, it is necessary to remove all of one span (for example, 100 m). As a result, there is a problem in that restoration work after an accident requires a lot of manpower, cost, and time.

  Therefore, the inventor of the present application, as a solution to such a problem, the conventional lower panel 7 that conceals the upper surface and both side surfaces of the wire rope 6 along the wire rope 6 as shown in FIG. An upper surface 71 on which the sound absorbing plate 9 is disposed, a side surface 72 that covers one side surface of the wire rope 6, and an opening that opens the other side surface of the wire rope 6. 73, a lower panel 7A that is fixed to the column 3 side member, and a blind panel 7B that can be opened and closed so that the opening 73 of the lower panel 7A can be opened and closed. (See Patent Document 1 (conventional example 2).)

Japanese Patent Application No. 2002-063977

  However, in the invention of the conventional example 2 (Patent Document 1), as means for positioning and fixing the lower panel 7A to the support column 3 side, at least the opening 73 side of the upper surface portion 71 and the lower end side of the side surface portion 72, Therefore, it is necessary to arrange and fix the trunk edge 12 and the L-shaped bracket 18 over the entire length in the longitudinal direction of the road partition wall 1 on the support column 3 side and the base plate 4 side, For this reason, the material cost increases due to the increase in the number of parts, and the work of attaching and fixing the lower panel 7A to the body rim 12 and the L-shaped metal fitting 18 is necessary. In addition to taking time, there is a problem in that, in the repair work after the accident, a great amount of labor, time, and cost are similarly required.

  The present invention has been made by paying attention to the problems of the above-described conventional examples 1 and 2, and by reducing the number of parts and work man-hours, shortening the work period and cost in newly installing a soundproof wall and repair work after an accident. An object of the present invention is to provide a soundproof wall mounting structure that can be reduced.

  In order to achieve the above-mentioned object, the soundproof wall mounting structure according to claim 1 of the present invention is such that the lower end of a pillar made of H-shaped steel projects in the longitudinal direction of both flanges of the H-shaped steel. The base plate is fixed in an inverted T-shape, and the protruding portions at both ends of the base plate are fastened and fixed to the upper portion of the partition wall by a plurality of anchor bolts and nuts, respectively, along the longitudinal direction of the partition wall at a predetermined interval. A support column is erected and a through hole is formed at the lower end of the web that is arranged in a state perpendicular to the longitudinal direction of the partition wall in the H-shaped steel. Both ends of the strut drop prevention wire rope are fixed in the through holes of the struts arranged in the span and fixed at both ends in the longitudinal direction of the partition wall in the H-shaped steel. Horizontal ribs each having an upper position serving as a receiving surface are provided, and the cover includes a top surface portion and one side surface portion on both ends of the horizontal ribs placed on the receiving surfaces of the horizontal ribs. A fixed-side panel formed in an approximately L shape with the other side surface opened, and a blindfold panel that detachably attaches to the opening edge side of the fixed-side panel to close the opening of the fixed-side panel And positioning means for preventing the movement of the fixed side panel in the width direction by engaging with each other between the fixed side panel and the column. Both ends of the sound absorbing plate are inserted and locked in a groove formed between the flanges, and the sound absorbing plate is placed on the upper surface portion of the fixed side panel placed on the receiving surfaces of the both horizontal ribs. Assembling By being kicked, and a means, characterized in that the vertical movement of the fixed side panel is fixed in a state of being blocked.

  The soundproof wall mounting structure according to claim 2 is the soundproof wall mounting structure according to claim 1, wherein the positioning means includes both H-shaped steel flange portions of the support column and an upper surface portion of the fixed side panel. The slits are configured to be engageable with both flange portions formed at both ends in the longitudinal direction.

  The soundproof wall mounting structure according to claim 3 is the soundproof wall mounting structure according to claim 1 or 2, wherein the widthwise ribs are fixed to the front end edges of both flange portions of the H-shaped steel in the column, A reinforcing rib between the support column and the base plate is provided by two parallel longitudinal ribs standing between the width direction rib and the base plate in a state orthogonal to the width direction rib. By forming the upper surfaces of the width direction ribs and both longitudinal direction ribs on the same horizontal plane, the horizontal ribs are formed as receiving surfaces of the reinforcing ribs.

  The soundproof wall mounting structure according to claim 4 is the soundproof wall mounting structure according to claim 3, wherein the positioning means protrudes from the parallel longitudinal ribs and the back surface of the upper surface portion of the fixed side panel. It is formed by a pair of locking protrusions that are formed and can be locked to both inner surfaces or both outer surfaces of the both longitudinal ribs.

In the soundproof wall mounting structure according to the first aspect of the present invention, as described above, the cover has a top surface portion and one side surface portion where both ends in the longitudinal direction are placed on the receiving surfaces of both horizontal ribs between the support columns. A fixed side panel formed in a substantially L shape with the other side surface opened, and a blindfold that detachably attaches to the opening edge side of the fixed side panel to close the opening of the fixed side panel Positioning means is provided between the fixed side panel and the column to prevent the movement of the fixed side panel in the width direction by engaging with each other. The both ends of the sound absorbing plate are inserted and locked in the groove formed in the groove, and the sound absorbing plate is placed on the upper surface portion of the fixed side panel placed on the receiving surfaces of the two horizontal ribs. By being assembled with Since the fixed side panel is fixed in a state where movement in the vertical direction is prevented, in order to fix the fixed side panel, the body edge and the L There is no need to place and fix a member such as a metal fitting.
Therefore, by reducing the number of parts and the number of work steps, it is possible to shorten the work period and reduce the cost in newly installing a soundproof wall and repair work after an accident.

  The soundproof wall mounting structure according to claim 2, wherein, as described above, the positioning means includes both flange portions of the H-shaped steel in the support column and both flange portions formed at both longitudinal ends of the upper surface portion of the fixed side panel. By using a slit that can be engaged with the part, the shape of both flange parts of the H-section steel can be used effectively, and positioning can be performed by a very simple process of simply forming a slit in the upper surface part of the fixed panel. Will be able to do.

  In the soundproof wall mounting structure according to claim 3, as described above, the width direction rib fixed to the front end edges of both flange portions of the H-shaped steel in the support column, and in a state orthogonal to the width direction rib, Two parallel longitudinal ribs erected between the width direction rib and the base plate are provided with reinforcing ribs between the support column and the base plate, and the upper surfaces of the width direction ribs and the two longitudinal ribs in the reinforcement rib By forming the horizontal ribs on the same horizontal plane, the horizontal ribs are formed as the receiving surfaces of the reinforcing ribs, so that the reinforcing ribs can be effectively used as horizontal ribs for mounting the fixed side panel. The fixed side panel can be stably supported with a wide range of support area.

  In the soundproof wall mounting structure according to claim 4, as described above, the positioning means is formed so as to protrude from both parallel longitudinal ribs and the back surface of the upper surface portion of the fixed side panel, and both the longitudinal ribs. By comprising a pair of locking protrusions that can be locked to the inner surface or both outer surfaces, the reinforcing ribs are effectively used, and the locking protrusions are simply formed on the back surface of the upper surface portion of the fixed panel. Positioning can be performed only by processing.

  Embodiments of the present invention will be described below with reference to the drawings. The embodiment of the invention corresponds to the invention described in claims 1 to 4. In the description of the embodiment of the present invention, the same components as those in the conventional example described with reference to FIGS. 5 and 6 are denoted by the same reference numerals, or a part of the description is omitted. .

  FIG. 1 is a longitudinal side view of a main portion showing a soundproof wall mounting structure according to an embodiment of the invention, FIG. 2 is a plan view of a support, FIG. 3 is a plan view of a cover, and FIG. 4 is a front view with a blindfold panel removed. In these drawings, 1 is a partition wall (height) erected along the edge of the expressway, 2a and 2b are anchor bolts and nuts, 3 is a column, 4 is a base plate, 5 is a hole, and 6 is A wire rope, 9 is a sound absorbing plate, 10 is a cover, and 13 is a reinforcing rib.

  More specifically, the support column 3 is made of an H-shaped steel, and a base plate 4 is fixed to the lower end of the column 3 in an inverted T-shape in a state of projecting in the longitudinal direction of both flanges 3a and 3a of the H-shaped steel. Has been.

  Then, both flanges 3a, 3a of the H-shaped steel constituting the support column 3 are directed to the roadway side F and the anti-roadway side B, and the protruding portions on both ends of the base plate 4 are separated by the two anchor bolts / nuts 2a, 2b, respectively. The support columns 3, 3,... Are erected at predetermined intervals along the longitudinal direction of the partition wall 1 by being fastened and fixed to the upper part of the partition wall 1. Reference numeral 15 denotes a mortar that fills the gap between the partition wall 1 and the base plate 4.

  The reinforcing rib 13 serves to reinforce the space between the support column 3 and the base plate 4, and is a widthwise rib fixed to both end edges of the flanges 3a and 3a at the lower end of the H-shaped steel in the support column 3, respectively. 13a and two parallel longitudinal ribs 13b and 13b which are vertically fixed between the width direction rib 13a and the base plate 4 in a state orthogonal to the width direction rib 13a.

  And the upper surface of the said rib 10a and the both longitudinal direction ribs 13b and 13b are formed in the same horizontal surface, and the upper surface of the reinforcement rib 13 is used as the receiving surface for mounting the longitudinal direction both ends of the said cover 10. Horizontal ribs are constructed.

  A wire rope 6 for preventing a column from dropping off is provided on the lower end portion of the web 3b arranged in a state orthogonal to the longitudinal direction of the partition wall 1 in the H-shaped steel constituting the column 3 and on both the width direction ribs 13a and 13a. By forming the through holes 5 to be inserted, the upper position of the through holes 5 is the receiving surface of the cover 10. In addition, the said through-hole 5 has a magnitude | size which can penetrate easily the terminal part (eye, thimble, a wire clip, etc.) of the wire rope 6 mentioned later.

  The wire rope 6 should not drop any of the columns 3 among a plurality of columns 3, 3,... However, the entire length is divided into multiple parts, for example, one span is set to 100 m, and the corresponding support columns 3, 3... Are combined to prevent falling, having a length of 100 m + α, and fixing brackets at both ends Or eye processing.

  The cover 10 includes an upper surface portion 10a that is placed on a receiving surface in which both longitudinal ends of the support columns 3 and 3 are formed from the upper surface of the reinforcing rib 13, and a side surface portion 10b on the anti-roadway side B. The fixed side panel 10A is formed in a substantially L shape with the other side surface having an opening 10c, and is detachably attached by bolts and nuts 14 to the edge of the opening 10c side of the fixed side panel 10A. It is comprised with the blindfold panel 10B which obstruct | occludes the opening 10c part of 10A.

  In addition, two slits 10d and 10d that can be engaged in a state in which both flange portions 3a and 3a of H-shaped steel constituting the support column 3 are inserted are provided at both longitudinal ends of the upper surface portion 10a of the cover 10, respectively. Is formed. That is, positioning means for preventing the movement of the fixed side panel 10A in the width direction is constituted by the flange portions 3a and 3a of the H-shaped steel and the slits 10d and 10d.

  Further, a pair of locking projections 10e and 10e that can be locked to both inner surfaces of both longitudinal ribs 13b and 13b are formed on the back surface of both ends in the longitudinal direction of the upper surface portion 10a of the cover 10. In other words, the longitudinal ribs 13b and 13b and the locking projections 10e and 10e constitute positioning means for preventing the fixed-side panel 10A from moving in the width direction.

  The sound absorbing plate 9 has both end edges of the sound absorbing plate 9 inserted into a groove formed between the flanges 3a and 3a of the H-shaped steel in the adjacent struts 3-3, and the upper surface portion of the fixed side panel 10A. It is mounted by being placed on the upper surface of 10a, and the sound absorbing plate 9 is placed, so that the fixed side panel 10A is fixed while being prevented from moving in the vertical direction. Since the sound absorbing plate 9 is low in length, it is stacked in, for example, four stages to ensure an arbitrary height.

Next, operations and effects of the embodiment of the present invention will be described.
In the soundproof wall mounting structure according to the embodiment of the present invention, for example, assuming that the interval between the columns is 2 m, 51 columns 3 are erected for 100 m per span, and all columns 3, 3,. One wire rope 6 is inserted through 13a and 13a one after another, and both ends (eye) are fixed.

  When the strut 3 in the middle of one span is tilted due to an accident, first, by removing the bolts and nuts 14, the blindfold panel 10B is removed from the fixed panel 10A over the entire length of one span. The opening 10c portion of the fixed side panel 10A is opened over the entire length of one span, and the wire rope 6 and the lower portion of the column 3 through which the wire rope 6 is inserted are exposed to the roadway side F.

  Therefore, in the restoration work, the wire ropes 6 can be successively pulled out from all the columns 3 and the through holes 5 of the both width direction ribs 13a and 13a through the opening 10c. By pulling out the wire rope 6, it is possible to remove only a damaged arbitrary portion. First, the damaged sound absorbing plate 9 is removed, and then the damaged support column 3 is removed.

  By doing in this way, since the upper part of the partition 1 will be in the released state, if there is a damaged part in the column mounting part such as the partition 1 or the anchor bolts / nuts 2a, 2b, it is repaired. After that, the column 3 of the removed part is attached, the fixed side panel 10A and the sound absorbing plate 9 are attached, and all the columns 3 and the through-holes 5 of the both width direction ribs 13a and 13a are inserted through the openings 10c After fixing both ends (eye), a complete soundproof wall can be regenerated by attaching the blind panel 10B with the bolts and nuts 14 to the fixed panel 10A.

  As described above in detail, according to the soundproof wall mounting structure of the embodiment of the present invention, the cover 10 is constituted by the upper surfaces of the reinforcing ribs 13 at both ends in the longitudinal direction between the columns 3 and 3. A fixed-side panel 10A formed of a substantially L shape having an upper surface portion 10a placed on the receiving surface and a side surface portion 10b on the anti-roadway side B and having the other side surface opened 10c, and the fixed-side panel 10A The structure is divided into two parts, a blindfold panel 10B that closes the opening 10c portion of the fixed side panel 10A by being detachably attached to the side edge portion of the opening 10c with bolts and nuts 14, thereby preventing the column from falling. Even if the wire rope 6 is passed through all the columns 3, 3,..., The wire rope 6 can be connected through the opening 10c without removing all the sound absorbing plates 9, columns 3, and covers 10 as in the prior art. Since it is possible to remove the-flop 6, it can be carried out in a quick low-cost recovery work.

Further, positioning means for preventing the movement of the fixed side panel 10A in the width direction by being engaged with each other is provided between the fixed side panel 10A and the column 3, and the H-shaped steel between the adjacent columns 3-3 is provided. A fixed-side panel 10A in which both edge portions of the sound absorbing plate 9 are inserted and locked in a groove formed between the flanges 3a and 3a, and the sound absorbing plate 9 is placed on the receiving surfaces of both the reinforcing ribs 13 and 13. In order to fix the fixed-side panel 10A, the fixed-side panel 10A is fixed in a state in which the fixed-side panel 10A is prevented from moving in the vertical direction. There is no need to place and fix a member such as a trunk edge or an L-shaped bracket over the entire length in the longitudinal direction of the partition wall 1 on the column 3 side and the base plate 4 side.
Therefore, by reducing the number of parts and the number of work steps, it is possible to shorten the work period and reduce the cost in newly installing a soundproof wall and repair work after an accident.

  Further, the positioning means for preventing the movement of the fixed side panel 10A in the width direction is formed at both end portions in the longitudinal direction of the flanges 3a and 3a of the H-shaped steel in the support column 3 and the upper surface portion 10a of the fixed side panel 10A. By using the slits 10d and 10d that can be engaged with the flanges 3a and 3a, the shape of the flanges 3a and 3a of the H-shaped steel can be effectively used, and the upper surface portion 10a of the fixed side panel 10A can be used. Positioning can be performed only by an extremely simple process of simply forming the slits 10d and 10d.

  Furthermore, the other positioning means for preventing the movement of the fixed side panel 10A in the width direction is formed to protrude from the parallel longitudinal ribs 13b and 13b and the back surface of the upper surface portion 10a of the fixed side panel 10A. By comprising a pair of locking projections 10e, 10e that can be locked to both inner surfaces of the direction ribs 13b, 13b, the longitudinal ribs 13b, 13b of the reinforcing rib 13 can be used effectively, and the fixed side panel 10A. The positioning can be performed by an extremely simple process of simply forming the locking projections 10e and 10e on the back surface of the upper surface portion 10a.

  Further, a width direction rib 13a fixed to the front end edge of both flanges 3a and 3a of the H-shaped steel in the column 3, and the width direction rib 13a and the base plate 4 in a state orthogonal to the width direction rib 13a. Two parallel longitudinal ribs 13b, 13b erected in between are provided with a reinforcing rib 13 between the support column 3 and the base plate 4. The reinforcing rib 13 includes a widthwise rib 13a and both longitudinal ribs 13b. By forming the upper surface of 13b on the same horizontal plane, a horizontal rib is formed with the upper surface of the reinforcing rib 13 as a receiving surface, whereby the reinforcing rib 13 is a horizontal rib on which the fixed panel 10A is placed. As a result, the fixed-side panel 10A can be stably supported with a wide support area.

Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments.
For example, in the embodiment of the invention, two types of positioning means are provided, but only one of them may be provided.

  Further, in the embodiment of the invention, the protruding portions at both ends of the base plate 4 are fixed by the two anchor bolts / nuts 2a and 2b, respectively, but the number may be increased.

It is a vertical side view which shows the attachment structure of the soundproof wall of embodiment of invention. It is a top view of the support | pillar in the attachment structure of the soundproof wall of embodiment of invention. It is a top view of the cover in the attachment structure of the soundproof wall of embodiment of invention. It is a front view of the state which removed the blindfold panel in the attachment structure of the soundproof wall of embodiment of invention. It is a vertical side view which shows the attachment structure of the soundproof wall of the prior art example 1. It is a vertical side view which shows the attachment structure of the soundproof wall of the prior art example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bulkhead 2a Anchor bolt * nut 2b Anchor bolt * nut 3 Support | pillar 3a Flange 3b Web 4 Base plate 5 Hole 6 Wire rope 9 Soundproof board 10 Cover 10A Fixed side panel 10B Blindfold panel 10a Upper surface part 10b Side surface part 10c Opening 10d Slit 10e Locking Protrusion 13 Reinforcement rib 13a Width direction rib 13b Longitudinal rib 14 Bolt / Nut 15 Mortar

Claims (4)

A base plate is fixed to the lower end of the column made of H-shaped steel in an inverted T shape in a state of projecting in the longitudinal direction of both flanges in the H-shaped steel,
By fixing and fixing both end protrusions of the base plate to the upper part of the partition wall with a plurality of anchor bolts and nuts, pillars are erected at a predetermined interval along the longitudinal direction of the partition wall,
A through-hole through which a support rope fall prevention wire rope is inserted is formed at the lower end of the web arranged in a state orthogonal to the longitudinal direction of the partition wall in the H-shaped steel,
For each fixed span, the both ends are fixed by penetrating a support rope fall prevention wire rope in the through hole of the support arranged in the span,
Horizontal ribs, each of which is a receiving surface at a position above the through hole at both longitudinal ends of the partition wall in the H-shaped steel,
The cover is formed in a substantially L shape with both ends in the longitudinal direction formed of an upper surface portion and one side surface portion placed on the receiving surfaces of the horizontal ribs, and the other side surface opened. The fixed side panel, and a blindfold panel that closes the opening of the fixed side panel by being detachably attached to the opening edge side of the fixed side panel,
Positioning means for preventing movement in the width direction of the fixed side panel by engaging each other is provided between the fixed side panel and the support column,
The sound absorbing plates are fixedly mounted on the receiving surfaces of the two horizontal ribs by inserting and locking both end edges of the sound absorbing plates in grooves formed between the flanges of the H-shaped steels in the adjacent struts. A soundproof wall mounting structure, wherein the soundproof wall is fixed in a state in which the fixed side panel is prevented from moving in the vertical direction by being mounted on the upper surface of the side panel.   The positioning means is composed of both H-shaped flange portions of the H-shaped steel in the support column and slits that can be engaged with the both flange portions formed at both longitudinal ends of the upper surface portion of the fixed-side panel. The soundproof wall mounting structure according to claim 1. The width direction rib fixed to the front-end | tip edge part of both flange parts of the H-section steel in the said support | pillar, and two parallel standingly arranged between this width direction rib and a base plate in the state orthogonal to this width direction rib A reinforcing rib between the support column and the base plate is provided with the longitudinal rib of
3. The horizontal rib is formed as a receiving surface on the upper surface of the reinforcing rib by forming the upper surface of the width direction rib and the longitudinal ribs of the reinforcing rib on the same horizontal plane. The soundproof wall mounting structure described in 1.   The positioning means is formed of a pair of parallel longitudinal ribs and a pair of latches that are formed on the back surface of the upper surface portion of the fixed side panel and can be latched to both inner surfaces or both outer surfaces of the longitudinal ribs. The soundproof wall mounting structure according to claim 3, wherein the soundproof wall mounting structure comprises a protrusion.

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