JP2018003481A - Replacement method for cushioning material of soundproof wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a replacement method for a cushioning material that enables replacement work for a cushioning material of a soundproof wall to be easily performed, even when there is no space outside a railway track for using a high lift work vehicle or a crane truck.SOLUTION: The replacement method for a cushioning material of a soundproof wall includes: a first step of forming a gap between top and bottom sound insulation board materials 12, 12; a second step of temporarily fixing a sliding-side member 21 to a support post 11, while inserting an insertion plate 23 into the gap; a third step of fixing a stationary-side member 25 to a position on a support post 11 below the sliding-side member 21; a fourth step of installing a jack 26 on a top surface of the stationary-side member 25; a fifth step of lifting the top sound insulation board material 12 using the jack 26 and through the insertion plate 23, after releasing the temporary fixing while keeping the sliding-side member 21 fitted on the support post 11; a sixth step of removing a cushioning material 13 remaining between the top and bottom sound insulation board materials 12, 12; and a seventh step of installing a new cushioning material 13N on a top surface of the bottom sound insulation board material 12.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a method for replacing a cushioning material in a soundproof wall.

Noise generated when a railway vehicle travels on a track includes rolling noise generated from vibration of wheels and rails, current collection noise generated from a pantograph, vehicle aerodynamic noise generated from the action of the vehicle body and airflow, viaduct The sound of the structure generated from the vibration of the structure such as In order to suppress such noise from propagating outside the track, a soundproof wall is provided on the side of the track.
For example, a soundproof wall as described in Patent Document 1 is formed such that a plurality of soundproof plate members are stacked in a plurality of stages in the vertical direction across a plurality of support columns standing upright apart from each other. Has been. In addition, a cushioning material that prevents contact between the soundproofing plate materials may be provided between the upper and lower soundproofing plate materials constituting the soundproofing wall, and such a cushioning material generates noise due to the contact between the soundproofing plate materials. And damage can be suppressed.

JP 2005-60975 A

  By the way, the cushioning material provided between the upper and lower soundproofing plate materials normally works to relieve the collision and impact between the upper and lower soundproofing plate materials, so it is easy to change over time, and regular replacement work was necessary. . When replacing the cushioning material, it is necessary to lift the soundproofing plate material, and the work of lifting the soundproofing plate material is performed, for example, using an aerial work vehicle or a crane vehicle from a side road outside the track. However, it is difficult to replace the cushioning material in a place where it is not possible to secure a space where an aerial work vehicle or a crane vehicle can be used outside the track.

  An object of the present invention is to provide a cushioning material replacement method capable of easily performing cushioning material replacement work on a soundproof wall even in a place where a space for using an aerial work vehicle or a crane truck cannot be secured outside a railway track. Is to provide.

In order to achieve the above object, the present invention provides:
A state in which a plurality of soundproof plate members are formed with a recessed guide groove into which a side end portion of the soundproof plate member is inserted, are provided between a plurality of support columns standing upright apart from each other, and a cushioning material is interposed In the method of exchanging the cushioning material in the soundproof wall formed by being stacked in the vertical direction,
A first step of opening a gap between the soundproof plate materials adjacent in the vertical direction;
A slide-side member that has an insertion plate to be inserted into the gap and is slidable along the length of the column is temporarily attached to the column after the insertion plate is inserted into the gap. A second step of fixing,
A third step of fixing and fixing the fixed side member at a position below the slide side member of the support;
A fourth step of installing a jack on the upper surface of the fixed side member so as to be positioned between the fixed side member and the slide side member;
A fifth step of lifting the soundproof plate material on the upper side through the insertion plate by the jack after releasing the temporary fixing while the slide side member is mounted in a slidable state along the column;
A sixth step of removing the buffer material remaining between the soundproof plate materials adjacent in the vertical direction;
And a seventh step of providing a new cushioning material on the upper surface of the lower soundproof plate material.

  According to such a replacement method of the cushioning material, the insertion plate is inserted into the gap formed between the soundproof plate materials adjacent in the vertical direction, and the slide side member having this insertion plate is moved upward along the support column. It is possible to lift the upper soundproof plate simply by lifting it up, and to perform a buffer material replacement operation. Furthermore, the cushioning material can be replaced simply by attaching the slide side member and the fixed side member to the column and installing the jack between the fixed side member and the slide side member, thus ensuring a wide working space. There is no need. Therefore, even if it is a place which cannot secure the space which can use an aerial work vehicle or a crane vehicle outside a track, the exchange operation of the shock absorbing material in a soundproof wall can be performed easily.

Preferably, in the second step to the fourth step, the slide side member, the fixed side member, and the jack are installed on both of the adjacent columns,
In the fifth step, both end portions of the upper soundproof plate member are simultaneously lifted to the same height.
According to such a method of replacing the cushioning material, both end portions of the upper soundproof plate material are simultaneously lifted to the same height, so that the upper soundproof plate material can be lifted in a balanced and stable manner.

Preferably, in the fifth step, the slide-side member is temporarily fixed to the column after the upper soundproof plate is lifted, and the jack is removed and the fixed-side member is moved downward.
After the seventh step, the method further includes a step of lifting the lower soundproof plate member using another slide side member different from the slide side member, the fixed side member, and the jack.
According to such a cushioning material replacement method, if another slide-side member different from the slide-side member for temporarily fixing the upper soundproof plate material is prepared, the soundproofing located directly below the upper soundproof plate material. When lifting the plate material, the fixed side member and the jack can be reused, so that the cost for replacing the cushioning material can be reduced.

Desirably, the upper soundproof plate material includes a plurality of soundproof plate materials adjacent to each other in the upper and lower sides, and in the fifth step, the plurality of soundproof plate materials are simultaneously lifted.
According to such a cushioning material replacement method, the upper soundproof plate material includes a plurality of soundproof plate materials adjacent to each other in the upper and lower sides, and in the fifth step, the plurality of soundproof plate materials can be lifted simultaneously. Of the cushioning material between the soundproof plate members stacked in the direction, only the cushioning material at a location that needs to be replaced can be exchanged.

Desirably, after lowering the soundproof plate material located on the lower side of the plurality of soundproof plate materials adjacent to each other in the upper and lower sides included in the upper soundproof plate material, the upper surface of the soundproof plate material located on the lower side is newly provided. A step of providing the cushioning material.
According to such a cushioning material replacement method, the plurality of soundproofing plates adjacent to each other up and down are lifted together, and then the lowering soundproofing plate material is lowered to replace the cushioning material. You can increase the pattern of procedures. This increases the degree of freedom in the cushioning material replacement operation, making it easier to perform the cushioning material replacement operation.

Preferably, the support column is a steel having a web and two flanges,
The guide groove is a groove portion surrounded by the web and the two flanges,
The slide side member and the fixed side member are mounted on the support so as to grip the flange.
According to such a cushioning material replacement method, since the support column is a shaped steel member having a web and two flanges, the concave guide groove into which the side end portion of the soundproof plate member enters, the slide side member, and the fixed side member The part to install can be secured at the same time. Furthermore, since the slide-side member and the fixed-side member are attached to the support so as to grip the flange, they are easily caught and difficult to fall off.

Preferably, the slide-side member and the fixed-side member each have a bolt that penetrates itself and contacts the flange,
Temporarily fixing the slide side member to the column by tightening the bolt,
The fixed side member is fixed to the support column by tightening the bolt.
According to such a replacement method of the cushioning material, the slide-side member is temporarily fixed to the support by tightening the bolt, and the fixed-side member is fixed to the support by tightening the bolt. You can adjust it. Therefore, it is easy to install the slide-side member and the fixed-side member on the column, and even when jacking up the upper soundproof plate material, it is only necessary to loosen the bolt that temporarily fixed the slide-side member. It will be easier to proceed with replacement work. Further, since the slide side member and the fixed side member can be fixed to the column by tightening the bolts, the slide side member and the fixed side member can be temporarily fixed and fixed at an arbitrary height position on the column.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a place which cannot ensure the space which can use an aerial work vehicle and a crane vehicle outside a track | line, the replacement | exchange operation | work of the shock absorbing material in a soundproof wall can be performed easily.

(A) is the schematic which shows the track | line in which the soundproof wall was provided, (b) is a perspective view which shows a soundproof wall. It is a front view which shows a 1st elevator. It is a top view which shows a 1st elevator. It is a side view which shows a 1st elevator. It is a figure for demonstrating the replacement | exchange method of the shock absorbing material using a 1st elevator. It is a front view which shows a 2nd elevator. It is a top view which shows a 2nd elevator. It is a side view which shows a 2nd elevator. It is a figure for demonstrating the replacement | exchange method of the shock absorbing material using a 2nd elevator.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below are provided with various technically preferable limitations for carrying out the present invention. However, the technical scope of the present invention is not limited to the following embodiments and illustrated examples. Absent.

[Description of the sound barrier 10]
In FIG. 1A, reference numeral 1 indicates a line. The track 1 is provided on the viaduct 2, and a soundproof wall 10 that suppresses the propagation of noise to the outside of the track is provided on the side of the track 3 including rails and sleepers. The sound barrier 10 is continuously provided along the extending direction of the track 1.

As shown in FIGS. 1 (a) and 1 (b), the soundproof wall 10 is provided with a plurality of soundproof plate members 12 extending between a plurality of support pillars 11 and 11 which are erected at intervals. It is formed by being stacked in the vertical direction with the material 13 interposed.
In addition, the soundproof wall 10 in the present embodiment further includes a soundproof ceiling portion 14 that protrudes toward the track 3 at the upper end thereof.

The support column 11 is formed with a concave guide groove 11c into which the side end portion of the soundproof plate member 12 enters along the length direction of the surface on the soundproof plate member 12 side. In this embodiment, the web 11a, A shape steel material having two flanges 11b and 11b (in this embodiment, an H-section steel) is employed.
In addition, a wide base portion 11 d having a base plate and a plurality of ribs is integrally provided at the lower end portion of the column 11 and is fixed to the floor portion 2 a of the viaduct 2.

  The soundproof plate 12 is a plate made of prestressed concrete, that is, a PC plate, and extends between two struts 11 and 11 erected at intervals from each other along the extending direction of the track 1. Is provided. Furthermore, in this embodiment, the three soundproof board | plate materials 12 are piled up and down with the buffer material 13 interposed.

The soundproof plate 12 is disposed close to the flange 11b outside the track.
The thickness dimension of the soundproof plate 12 is set to be thinner than the width dimension of the guide groove 11c (that is, the width dimension of the web 11a and the distance between the two flanges 11b and 11b). For this reason, a gap is formed between the soundproof plate 12 that has entered the guide groove 11c and the flange 11b on the track side, and a gap holder 15 is provided in this gap as shown in FIG. The soundproof plate 12 can be arranged close to the outside of the track. The spacing holder 15 is removed when the soundproof plate 12 is raised and lowered.

  Of the three soundproof plate members 12 stacked in the vertical direction, a notch portion 12a corresponding to the base portion 11d of the column 11 is formed at the lower corner portion of the lower soundproof plate member 12 (see FIG. 6). ).

The buffer material 13 is interposed between the soundproof plate materials 12 and 12 stacked in the vertical direction, and in this embodiment, a long rubber plate material is used.
Moreover, in this embodiment, it is provided so that it may also interpose between the soundproof board material 12 of the lower stage among the three soundproof board materials 12, and the floor part 2a of the viaduct 2.

The soundproof ceiling portion 14 is provided so as to protrude horizontally from the upper end portion of the upper soundproof plate member 12 toward the line 1 side.
The soundproof ceiling portion 14 includes a ceiling plate material 14a made of a PC board, like the soundproof plate material 12, and a bracket 14b that is fixed to the upper end portion of the flange 11b on the track 1 side of the column 11 and supports the ceiling plate material 14a.
As shown in FIG. 1 (b), the bracket 14b has a body portion formed in an inverted T-shaped cross section, and the ceiling plate member 14a is formed on one side and the other side of the center vertical portion of the inverted T-shape. The side end can be placed.

[Description of the first elevator 20 and the second elevator 30]
The first elevator 20 is capable of moving up and down the soundproof plate 12 excluding the lowest step among the plurality of soundproof plates 12, and includes a slide side member 21, a fixed side member 25, a jack 26, and a fixing bolt B1. And an adjustment bolt B2.
In addition, when raising / lowering the soundproof board | plate material 12, a pair of 1st elevator 20 is required, one 1st elevator 20 is arrange | positioned on the left side of the soundproof board | plate material 12, and the other 1st elevator 20 is the right side of the soundproof board | plate material 12. Placed in.

The second elevator 30 can raise and lower all the soundproof plate members 12 from the lowest to the highest step among the plurality of soundproof plate members 12, and includes a jack 31 and a jack attachment 32.
In addition, when raising / lowering the soundproof board | plate material 12, a pair of 2nd elevators 30 are required, one 2nd elevator 30 is arrange | positioned on the left side of the soundproof board | plate material 12, and the other second elevator 30 is the right side of the soundproof board | plate material 12. Placed in.

  The slide-side member 21 in the first elevator 20 receives a mounting portion 22 to be mounted on the support column 11, an insertion plate 23 inserted between the soundproof plate members 12, 12 adjacent in the vertical direction, and an upper end portion of the jack 26. Part 24.

The mounting portion 22 in the slide-side member 21 is configured to be split including left and right divided bodies formed symmetrically, and is mounted on the flange 11 b on the track 1 side in the column 11. The left and right divided bodies are formed by bending or joining steel plates and appropriately processing them.
Then, both the left and right divided bodies in the mounting portion 22 are adjusted to adjust the distance between the hooking portion 22a hooked to the end in the width direction of the flange 11b and the left and right divided bodies when mounted on the flange 11b. Part 22b.

The hook portion 22a in each of the left and right divided bodies is formed so as to wrap around from the surface (front surface) on the line 1 side of the flange 11b to the back surface side via the side end surface.
A fixing bolt B1 penetrating the part is provided at a part located on the front side of the hook portion 22a. Note that a through hole through which the fixing bolt B1 is passed is formed at a front side portion of the hook portion 22a, and a nut having a bolt hole corresponding to the through hole is joined.
Then, the hooking portion 22a can be temporarily fixed to the column 11 by tightening and screwing the fixing bolt B1 until it comes into contact with the front surface of the flange 11b on the line 1 side.

The interval adjusting portion 22b in each of the left and right divided bodies is formed so as to protrude from the end portion of the front portion of the hook portion 22a toward the line 1 side. A through hole through which the adjusting bolt B2 is passed is formed in the interval adjusting portion 22b.
And the space | interval adjustment part 22b in the division body on the left side and the space | interval adjustment part 22b in the division body on the right side oppose each other in the state which attached the slide side member 21 to the support | pillar 11, and it is an adjustment bolt to an opposing through-hole. It can join by providing a nut through B2. Moreover, according to the tightening condition of the adjusting bolt B2, the interval between the interval adjusting portions 22b and 22b in the left and right divided bodies can be narrowed or widened. Thereby, the interval between the left and right divided bodies can be narrowed or widened. Therefore, by narrowing the interval between the left and right divided bodies, the hook portions 22a and 22a in the left and right divided bodies can be hooked on the side end portions of the flange 11b, so that the slide side member 21 is gripped by the flange 11b. And can be attached to the column 11. Conversely, by widening the interval between the left and right divided bodies, the hook portions 22a and 22a in the left and right divided bodies can be removed from the side end portions of the flange 11b, and the slide-side member 21 can be removed from the column 11.

The insertion plate 23 in the slide-side member 21 is joined and fixed to the upper end portion of the side surface of the hooking portion 22 a in the mounting portion 22. That is, the insertion plate 23 includes a fixing portion 23a that is bonded and fixed to the upper end portion of the side surface of the hook portion 22a, and an insertion plate body 23b that protrudes outward from the upper end portion of the fixing portion 23a.
Further, the insertion plate 23 is joined to either one of the left and right divided bodies in the mounting portion 22. That is, the joint location differs depending on whether the slide-side member 21 is disposed on the left side or the right side of the soundproof plate member 12 to be lifted. In the case of the slide side member 21 arranged on the right side of the soundproof plate member 12 as shown in FIGS. 2 and 3, the insertion plate 23 is joined to the left divided body in the mounting portion 22. That is, the pair of slide side members 21 and 21 arranged on the left and right of the soundproof plate member 12 are formed so that the insertion plate 23 is symmetrically arranged (the same applies to the receiving portion 24 described later).

The receiving portion 24 in the slide side member 21 is interposed between the lower end portion of the slide side member 21 and the upper end portion of the jack 26 and receives the upper end portion of the jack 26.
The receiving portion 24 is a mountain-shaped angle member, and one piece is sandwiched between the slide side member 21 and the jack 26, and the other piece is the side where the insertion plate 23 is located with respect to the jack 26 in a front view. (The right side in FIG. 2). Since the receiving portion 24 is configured to include the other piece in this manner, the positional deviation of the jack 26 can be suppressed.
In addition, the receiving part 24 may be joined to the lower end surface of one of the left and right divided bodies in the mounting part 22, or may be used simply by being sandwiched between the slide side member 21 and the jack 26. Good.

  The fixed side member 25 in the first elevator 20 is configured similarly to the mounting portion 22 in the slide side member 21. In other words, the fixed-side member 25 includes a left and right divided body formed symmetrically, and can be divided. The left and right divided bodies are hooked to be hooked on the flange 11b on the line 1 side of the column 11. Each includes a portion 25a and an interval adjusting unit 25b for adjusting the interval between the left and right divided bodies. Further, the fixed side member 25 can be fixed to the support 11 by the fixing bolt B1, and the interval between the left and right divided bodies can be adjusted by the adjusting bolt B2.

A hydraulic jack is employed as the jack 26 in the slide side member 21. In addition, when providing a pair of 1st elevators 20 in the right and left of the soundproof board | plate material 12, the said jack 26 will also be arrange | positioned at the right and left of the soundproof board | plate material 12, respectively. They may be connected and can be moved up and down simultaneously by the control device.
The jack 26 includes a base portion 26a. The base portion 26a is installed on the upper end surfaces of the hooking portions 25a and 25a and the upper end surfaces of the interval adjusting portions 25b and 25b.

  The jack 31 in the second elevator 30 is used by being installed on the floor portion 2a of the viaduct 2, and a jack attachment 32 is attached to the upper end portion thereof.

The jack attachment 32 in the second elevator 30 is for lifting the lowermost soundproof plate 12, and includes a mounting plate 33, a connecting plate 34, and an insertion plate 35.
The attachment plate 33 is attached to the upper end portion of the jack 31, is larger than the area of the upper end surface of the jack 31, and is formed in a rectangular shape in plan view.
The connecting plate 34 is a mountain-shaped angle member that is joined to the sound insulating plate 12 side end of the mounting plate 33 and joined to the insertion plate 35, and connects the mounting plate 33 and the insertion plate 35. As shown in FIG. 7, the connecting plate 34 is joined to the lower surface corner of the mounting plate 33 at the end of the soundproof plate 12.
The insertion plate 35 is inserted into a gap formed between the lowermost soundproof plate member 12 and the floor portion 2 a of the viaduct 2, and is bonded and fixed to the end surface of the lower end portion of the connection plate 34.
The insertion plate 35 includes a fixing portion 35a that is bonded and fixed to the end surface of the lower end portion of the connection plate 34, and an insertion plate body 35b that protrudes outward from the upper end portion of the fixing portion 35a.

[Explanation of how to replace the cushioning material]
The cushioning material 13 can be replaced by the first elevator 20 and the second elevator 30 configured as described above.

First, a method for replacing the cushioning material 13 by the first elevator 20 will be described. There are a plurality of patterns for exchanging the cushioning material 13 only by the first elevator 20, and a method for exchanging these plural patterns will be described in detail below.
In addition, the some soundproof board | plate material 12 in this embodiment is three as mentioned above. Furthermore, the 1st elevators 20 and 20 formed symmetrically shall be provided in both the adjacent support | pillars 11 and 11 in the right-and-left both sides of the soundproof board | plate material 12. As shown in FIG.

(First pattern when the first elevator 20 is used)
The first pattern is a case where the procedure from FIG. 5A to FIG. 5F is advanced in alphabetical order.
When replacing the cushioning material 13, first, as shown in FIG. 5A, the ceiling plate material 14 a of the soundproof ceiling portion 14 is moved along the bracket 14 b to form a space in which the soundproof plate material 12 can be jacked up. .
Subsequently, the upper soundproof plate 12 to be lifted is slightly lifted by using a tool (for example, a bar), and the insertion plate is interposed between the upper soundproof plate 12 and the middle soundproof plate 12 positioned immediately below the upper soundproof plate 12. A gap into which 23 can be inserted is formed.

Subsequently, as shown in FIGS. 2 to 4, the first elevator 20 is attached to the column 11.
More specifically, in the first elevator 20, first, the slide side member 21 is attached to the column 11.
Since the mounting part 22 can be divided into left and right parts, the slide side member 21 loosens the adjustment bolt B2, widens the distance between the left and right divided bodies, and in that state, the flange located on the line 1 side 11b. At the same time, the insertion plate 23 is inserted into the gap formed using a tool.
Then, the adjustment bolt B2 is tightened to narrow the interval between the left and right divided bodies. Thus, the hooking portions 22a and 22a are hooked on the side end portions of the flange 11b, and the mounting portion 22 can be mounted on the support column 11 so as to grip the flange 11b.
Thereafter, the fixing bolt B1 is tightened until the tip of the fixing bolt B1 contacts the flange 11b, and the slide side member 21 is temporarily fixed to the support column 11. The temporary fixing here may be such that the slide side member 21 does not rattle.

Subsequently, the fixed side member 25 is attached to the column 11. Since the fixed side member 25 has the same configuration as the mounting portion 22 in the slide side member 21 as described above, the fixed side member 25 can be mounted on the column 11 in the same procedure as the mounting portion 22.
Note that the fixed side member 25 is fixed below the slide side member 21 and at a position with a space enough to allow the jack 26 to be provided between the fixed side member 25 and the slide side member 21. Further, since the fixed side member 25 serves as a base for jacking up by the jack 26, the fixing bolt B <b> 1 is tightened to be firmly fixed to the column 11.

  Subsequently, the jack 26 is installed on the upper end surface of the fixed side member 25. Further, the jack 26 is installed so that the receiving portion 24 is interposed between the upper end portion thereof and the lower end surface of the slide side member 21. When the upper end portion of the jack 26 does not reach the slide side member 21 (receiving portion 24), the jack 26 is preferably extended to reach the slide side member 21 (receiving portion 24).

Subsequently, the fixing bolt B1 that temporarily fixed the slide side member 21 is loosened, the temporarily fixed state of the slide side member 21 is released, and both jacks 26 and 26 in the pair of first elevators 20 and 20 are simultaneously connected. The upper soundproof plate 12 is jacked up as shown in FIG.
Thereafter, at the position where the upper soundproof plate 12 is jacked up, the fixing bolt B1 in the slide side member 21 is tightened, and the slide side member 21 is temporarily fixed to the column 11 again. Temporary fixing here shall be performed firmly in order to prevent the soundproof board | plate material 12 of the upper stage falling.

After the slide side member 21 is temporarily fixed to the support 11 again, the jack 26 is removed and the fixed state of the fixed side member 25 is released.
Then, the fixed side member 25 is slid downward along the column 11 to a position suitable for jacking up the middle-stage soundproof plate member 12, and the fixing bolt B1 is tightened to the column 11 again at the suitable position. Fix it.

Subsequently, the middle soundproof plate 12 to be lifted is lifted slightly by using a tool, and a gap in which the insertion plate 23 can be inserted between the middle soundproof plate 12 and the lower soundproof plate 12 immediately below. Form.
Subsequently, another slide side member 21 </ b> A different from the slide side member 21 temporarily fixed to the support 11 is attached to the support 11. At the same time, the insertion plate 23 is inserted into the gap formed using a tool. Then, the adjustment bolt B2 and the fixing bolt B1 are appropriately tightened to temporarily fix the other slide side member 21A to the support column 11.
Subsequently, the removed jack 26 is installed between the other slide side member 21 </ b> A and the fixed side member 25 that has been re-fixed.
Subsequently, the fixing bolt B1 that temporarily fixed the other slide side member 21A is loosened to release the temporarily fixed state of the slide side member 21, and as shown in FIG. Jack up the soundproof board 12.
Then, the existing shock-absorbing material 13 is removed while the middle soundproof plate 12 is lifted by the jack 26, and a new shock-absorbing material 13N is provided on the upper surface of the lower soundproof plate 12 as shown in FIG.

Subsequently, as shown in FIG. 5D, the middle soundproof plate 12 is jacked down by the jack 26 so that the new shock absorbing material 13N is sandwiched between the lower soundproof plate 12 and the middle soundproof plate 12. To. At this time, a gap is formed between the lower soundproof plate member 12 and the middle soundproof plate member 12 using a tool, the other slide side member 21A is removed, and the insertion plate 23 is removed. Thereafter, the tool is removed, and the middle soundproof plate 12 is completely lowered.
After jacking down the middle soundproof plate 12, the shock absorber 13 on the upper surface of the middle soundproof plate 12 is removed, and a new shock absorber 13N is provided on the upper surface of the middle soundproof plate 12.

  After the middle soundproof plate 12 is jacked down, the jack 26 is removed, the other slide side member 21A is completely removed from the column 11, and the fixed state of the fixed side member 25 is released. Then, the fixed side member 25 is slid upward along the support column 11 to a position suitable for jacking down the upper soundproof plate member 12, and the fixing bolt B1 is tightened at the preferable position to fix the support member 11 again. Fix it.

Subsequently, the removed jack 26 is installed between the fixed side member 25 that has been re-fixed and the slide side member 21 that has supported the upper soundproof plate 12.
Subsequently, the fixing bolt B1 that temporarily fixed the slide side member 21 is loosened, the temporarily fixed state of the slide side member 21 is released, and the upper soundproof plate 12 is once received by the jack 26 and the fixed side member 25. Then, as shown in FIG. 5 (e), the middle soundproof plate 12 is jacked down by the jack 26. Then, a gap is formed between the middle soundproof plate member 12 and the upper soundproof plate member 12 using a tool, the slide side member 21 is removed, and the insertion plate 23 is removed. Thereafter, the tool is removed, and the upper soundproof plate 12 is completely lowered. As a result, the new shock-absorbing material 13N can be sandwiched between the middle soundproof plate 12 and the upper soundproof plate 12.

After that, as shown in FIG. 5 (f), the ceiling plate member 14a of the soundproof ceiling 14 is moved along the bracket 14b, and the ceiling plate member 14a is returned to the original position.
As described above, the buffer material 13 between the upper soundproof plate 12 and the middle soundproof plate 12 and between the middle soundproof plate 12 and the lower soundproof plate 12 is replaced with a new buffer 13N. be able to.

(Second pattern when the first elevator 20 is used)
The second pattern is a pattern in which only the upper soundproof plate 12 is lifted and the shock absorber 13 between the upper soundproof plate 12 and the middle soundproof plate 12 is replaced with a new shock absorber 13N.
That is, the second pattern is performed in the flow from the procedure in FIG. 5A to the procedure in FIG. 5F through the procedure in FIG. 5B and the procedure in FIG. 5E.
In addition, the work performed in each process shall be performed by following the procedure described in the first pattern as appropriate.
According to such a second pattern, it is not necessary to replace the stationary member 25 and the jack 26, and the cushioning material 13 at the uppermost position can be replaced.

(Third pattern when using the first elevator 20)
In the third pattern, the two soundproofing plate materials 12 of the middle soundproofing plate material 12 and the upper soundproofing plate material 12 are lifted together to provide a new cushioning material 13 between the middle soundproofing plate material 12 and the lower soundproofing plate material 12. This is a pattern for replacing the buffer material 13N.
After the cushioning material 13 is replaced, the procedure is performed in the flow up to the procedure of FIG. 5F through the procedure of simultaneously lowering the soundproof plate 12 of the upper and middle soundproof plate 12.
In addition, the work performed in each process shall be performed by following the procedure described in the first pattern as appropriate.
According to such a third pattern, it is not necessary to replace the stationary member 25 and the jack 26, and the cushioning material 13 at an intermediate position can be replaced.

(Fourth pattern when using the first elevator 20)
In the fourth pattern, first, the two soundproofing plate materials 12 from the middle soundproofing plate material 12 to the upper soundproofing plate material 12 are lifted together by another slide side member 21A, and the middle soundproofing plate material 12 and the lower soundproofing plate material 12 The cushioning material 13 in between is replaced with a new cushioning material 13N. Thereafter, the upper soundproof plate 12 is temporarily fixed to the column 11 by the slide-side member 21, and then the middle soundproof plate 12 is jacked down, and the shock absorber 13 between the upper soundproof plate 12 and the middle soundproof plate 12. Is replaced with a new cushioning material 13N.
After the cushioning material 13 is replaced, the procedure is performed in a flow up to the procedure of FIG. 5F through the procedure of lowering the soundproof plate 12 of the upper soundproof plate 12.
That is, the fourth pattern includes the other sound-proof plate member 12A for lifting the soundproof plate material 12 on the middle stage and the soundproof plate material 12 on the upper stage together, and the slide-side member 21 for temporarily fixing the soundproof plate material 12 on the upper stage to the column 11. Necessary.
In addition, the work performed in each process shall be performed by following the procedure described in the first pattern as appropriate.
According to the fourth pattern, the buffer material 13 between the middle soundproof plate 12 and the lower soundproof plate 12, the upper soundproof plate 12 and the middle soundproof plate 12 are different from the first pattern. The cushioning material 13 can be exchanged between the two.

(Fifth pattern when the second elevator 30 is used)
Next, a method for replacing the cushioning material 13 by the second elevator 30 will be described. There is one pattern for exchanging the cushioning material 13 only by the second elevator 30. Hereinafter, a method for exchanging the cushioning material 13 by the one pattern (hereinafter, fifth pattern) will be described in detail.
In addition, the some soundproof board | plate material 12 in this embodiment is three as mentioned above. Furthermore, it is assumed that the second elevators 30, 30 formed symmetrically on the left and right sides are on the left and right sides of the soundproof wall 10.

The fifth pattern is a case where the procedure from FIG. 9A to FIG. 9D is advanced in alphabetical order.
When replacing the cushioning material 13, first, as shown in FIG. 9A, the ceiling plate material 14 a of the soundproof ceiling portion 14 is moved along the bracket 14 b to form a space in which the soundproof plate material 12 can be jacked up. .
Subsequently, the lower soundproof board 12 to be lifted is slightly lifted using a tool (for example, bar) or another jack (not shown), and the difference between the lower soundproof board 12 and the floor 2a of the viaduct 2 is different. A gap into which the insertion plate 35 can be inserted is formed.
When other jacks (not shown) are used, other jack attachments are inserted into the notches 12a formed in the lower soundproof plate 12 and used.

Subsequently, as shown in FIGS. 6 to 8, the second elevator 30 is installed on the floor 2 a of the viaduct 2.
More specifically, the jack 31 to which the jack attachment 32 is attached is installed on the floor 2 a of the viaduct 2. At the same time, the insertion plate 35 in the jack attachment 32 is inserted into the gap between the lower soundproof plate 12 and the floor portion 2a of the viaduct 2.
And both the jacks 31 in a pair of 2nd elevators 30 and 30 are extended simultaneously, and as shown in FIG.9 (b), the three soundproof board | plate materials 12 are jacked up collectively. Then, the existing cushioning material 13 is removed while the three soundproof plate members 12 are lifted by the jack 31.
And the new shock absorbing material 13N is provided between the lower soundproofing board material 12 and the floor part 2a of the viaduct 2 with the three soundproofing board materials 12 lifted by the jack 31.

  Subsequently, as shown in FIG. 9 (c), the three soundproof plate members 12 are jacked down by the jack 31, and a new cushioning material 13N is placed between the lower soundproof plate member 12 and the floor 2a of the viaduct 2. Try to pinch. At this time, a gap is formed between the lower soundproof plate 12 and the floor 2a of the viaduct 2 using the above-described tool or another jack, and the jack 31 and the jack attachment 32 are removed and inserted. The plate 35 is extracted. Thereafter, the tool or other jack is removed, and the three soundproof plate members 12 are completely lowered.

Thereafter, as shown in FIG. 9 (d), the ceiling plate material 14a of the soundproof ceiling portion 14 is moved along the bracket 14b, and the ceiling plate material 14a is returned to the original position.
As described above, the cushioning material 13 between the upper soundproof plate 12 and the floor portion 2a of the viaduct 2 can be replaced with a new cushioning material 13N.
According to such a fifth pattern, the plurality of soundproof plate members 12 are lifted all at once, and the lowermost shock absorber 13 is exchanged between the lower soundproof plate member 12 and the floor portion 2a of the viaduct 2. be able to.

Next, a method for replacing the cushioning material 13 using both the first elevator 20 and the second elevator 30 will be described. There are a plurality of patterns for exchanging the cushioning material 13 by the first elevator 20 and the second elevator 30. Hereinafter, a method for exchanging these plural patterns will be described in detail.
In addition, the some soundproof board | plate material 12 in this embodiment is three as mentioned above. Moreover, the 1st elevators 20 and 20 formed symmetrically shall be provided in both the adjacent support | pillars 11 and 11 in the both right and left sides of the sound-insulation board | plate material 12. As shown in FIG. Furthermore, it is assumed that the second elevators 30, 30 formed symmetrically on the left and right sides are on the left and right sides of the soundproof wall 10.

(Sixth pattern when the first elevator 20 and the second elevator 30 are used)
In the sixth pattern, first, only the upper soundproof plate 12 is lifted by the first elevator 20 or after the middle soundproof plate 12 and the upper soundproof plate 12 are lifted, the second lift 30 lowers the lower pattern. The soundproof board 12 is lifted. And after exchanging the shock absorbing material 13 between the lower soundproofing plate material 12 and the floor 2a of the viaduct 2 with a new shock absorbing material 13N, the shock absorbing material 13 between the soundproofing plate materials 12, 12 is changed to the new shock absorbing material 13N. It is a pattern to exchange as appropriate.
When the middle soundproof plate member 12 and the upper soundproof plate member 12 are lifted, the middle and upper soundproof plate members 12 may be lifted together, or another slide side member 21A may be prepared and lifted sequentially.
In addition, the soundproof plate 12 lifted by the first elevator 20 needs to be temporarily fixed before the second soundproof plate 12 is lifted by the second lift 30.
Furthermore, when lowering the middle soundproof plate member 12 and the upper soundproof plate member 12 sequentially, it is necessary to use another slide side member 21A.
In addition, the work performed in each process shall be performed appropriately following the procedure described in the first pattern and the fifth pattern.
According to such a 6th pattern, the replacement | exchange operation | work of all the buffer materials 13 in the soundproof wall 10 can be performed using the 1st elevator 20 and the 2nd elevator 30. FIG.

(Seventh pattern when the first elevator 20 and the second elevator 30 are used)
In the seventh pattern, first, the second elevator 30 lifts up the three soundproof plate members 12 from the lower soundproof plate member 12 to the upper soundproof plate member 12 at the same time, and then the first elevator 20 raises the middle and upper soundproof members. Only the plate 12 or the upper soundproof plate 12 is temporarily fixed. And after changing the shock absorbing material 13 between the lower soundproof board | plate material 12 and the floor part 2a of the viaduct 2 to the new shock absorbing material 13N, the lower soundproof board | plate material 12 is lowered | hung with the 2nd elevator 30. FIG. Thereafter, while the soundproof plate 12 that has been temporarily fixed is lowered by the first elevator 20, the buffer 13 between the soundproof plates 12 and 12 is appropriately replaced with a new buffer 13 </ b> N.
When lowering the middle soundproof plate 12 and the upper soundproof plate 12 sequentially, it is necessary to use another slide side member 21A.
In addition, the work performed in each process shall be performed appropriately following the procedure described in the first pattern and the fifth pattern.
According to such a 7th pattern, the replacement | exchange operation | work of all the buffer materials 13 in the soundproof wall 10 can be performed in the procedure different from a 6th pattern using the 1st elevator 20 and the 2nd elevator 30. FIG.

  In the present embodiment, the method of exchanging the cushioning material 13 in a plurality of patterns as described above has been described, but basically, the procedure described in the first pattern and the fifth pattern is appropriately followed. Shall. Therefore, for example, the number of the soundproof plate members 12 constituting the soundproof wall 10 is different from that of the present embodiment, and even if the number of raising / lowering patterns of the soundproof plate members 12 is increased, it can be dealt with reliably, and the replacement work of the shock absorbers 13 can be performed smoothly Can be done.

  According to the present embodiment as described above, the insertion plate 23 is inserted into the gap formed between the soundproof plate members 12 adjacent to each other in the vertical direction, and the slide side member 21 having the insertion plate 23 is The upper soundproof plate 12 can be lifted simply by jacking up along the support 11, and the cushioning material 13 can be replaced. Furthermore, the cushioning member 13 can be replaced simply by mounting the slide side member 21 and the fixed side member 25 on the support column 11 and installing the jack 26 between the fixed side member 25 and the slide side member 21. There is no need to secure a wide working space. Therefore, even if it is a place where the space which can use an aerial work vehicle and a crane vehicle cannot be ensured outside the track 1, the exchange work of the shock absorbing material 13 in the soundproof wall 10 can be performed easily.

  Moreover, since the both side edge part of the soundproof board | plate material 12 is simultaneously raised to the same height by a pair of 1st elevators 20 and 20, the soundproof board | plate material 12 can be lifted with sufficient balance and stably.

  Further, if another slide side member 21A different from the slide side member 21 for temporarily fixing the upper soundproof plate member 12 is prepared, when the middle soundproof plate member 12 is jacked up, the fixed side member 25 and Since the jack 26 can be reused, the cost associated with the replacement work of the cushioning material 13 can be reduced.

  In addition, since the middle and upper soundproof plate materials 12 and 12 can be jacked up simultaneously by the first elevators 20 and 20, the buffer material 13 between the soundproof plate materials 12 and 12 stacked in the vertical direction needs to be replaced. Only the cushioning material 13 at the location can be exchanged.

  Further, since the middle and upper soundproof plate members 12 and 12 can be lifted together and then the middle soundproof plate member 12 can be jacked down to replace the shock absorber 13, the pattern of procedures for replacing the shock absorber 13 is increased. be able to. As a result, the degree of freedom in the replacement work of the cushioning material 13 is increased, so that the replacement work of the cushioning material 13 is further facilitated.

  Moreover, since the support | pillar 11 is the shape steel material which has the web 11a and the two flanges 11b and 11b, the concave guide groove 11c into which the side edge part of the sound-insulation board material 12 penetrates, the slide side member 21, and the fixed side member 25 are provided. The part to be installed can be secured at the same time. Furthermore, since the slide side member 21 and the fixed side member 25 are attached to the support column 11 so as to grip the flange 11b, they are easily caught and are not easily dropped off.

  Further, the slide-side member 21 is temporarily fixed to the column 11 by tightening the fixing bolt B1, and the fixed-side member 25 is fixed to the column 11 by tightening the fixing bolt B1, so that the fixing bolt B1 is tightened. The fixing strength can be adjusted. Therefore, it is easy to install the slide-side member 21 and the fixed-side member 25 with respect to the support column 11, and when the soundproof plate 12 is jacked up, the fixing bolt B1 that temporarily fixed the slide-side member 21 is loosened. It is easy to proceed with the replacement work of the cushioning material 13. Further, since the slide side member 21 and the fixed side member 25 can be fixed to the column 11 by tightening the fixing bolt B1, the slide side member 21 and the fixed side member 25 are temporarily fixed at arbitrary height positions on the column 11. Can be fixed.

DESCRIPTION OF SYMBOLS 1 Track 2 Viaduct 2a Floor part 3 Track 10 Soundproof wall 11 Support | pillar 11a Web 11b Flange 11c Guide groove 12 Soundproof board material 13 Buffer material 13N New buffer material 14 Soundproof ceiling part 20 First elevator 21 Slide side member 21A Other slide side members 22 mounting part 22a hooking part 22b interval adjusting part 23 insertion plate 25 fixing side member 26 jack 30 second elevator B1 fixing bolt B2 adjusting bolt

Claims (7)

A state in which a plurality of soundproof plate members are formed with a recessed guide groove into which a side end portion of the soundproof plate member is inserted, are provided between a plurality of support columns standing upright apart from each other, and a cushioning material is interposed In the method of exchanging the cushioning material in the soundproof wall formed by being stacked in the vertical direction,
A first step of opening a gap between the soundproof plate materials adjacent in the vertical direction;
A slide-side member that has an insertion plate to be inserted into the gap and is slidable along the length of the column is temporarily attached to the column after the insertion plate is inserted into the gap. A second step of fixing,
A third step of fixing and fixing the fixed side member at a position below the slide side member of the support;
A fourth step of installing a jack on the upper surface of the fixed side member so as to be positioned between the fixed side member and the slide side member;
A fifth step of lifting the soundproof plate material on the upper side through the insertion plate by the jack after releasing the temporary fixing while the slide side member is mounted in a slidable state along the column;
A sixth step of removing the buffer material remaining between the soundproof plate materials adjacent in the vertical direction;
A seventh step of providing a new cushioning material on the upper surface of the lower soundproofing plate material, and a method of replacing the cushioning material in the soundproof wall. In the second step to the fourth step, the slide side member, the fixed side member, and the jack are installed on both of the adjacent columns.
The method for replacing a cushioning material in a soundproof wall according to claim 1, wherein in the fifth step, both end portions of the upper soundproof plate material are simultaneously lifted to the same height. In the fifth step, the slide-side member is temporarily fixed to the column after lifting the upper soundproof plate, and further, the jack is removed and the fixed-side member is moved downward.
The method further includes a step of lifting the lower soundproof plate member using the other slide side member different from the slide side member, the fixed side member and the jack after the seventh step. Item 3. A method for replacing a cushioning material in a soundproof wall according to item 1 or 2.   The said upper soundproof board material contains the several soundproof board material adjacent to the upper and lower sides, In the said 5th process, the said several soundproof board material is lifted simultaneously, The said any one of Claim 1 to 3 characterized by the above-mentioned. The method for replacing the cushioning material in the soundproof wall.   Among the plurality of adjacent soundproof plate materials included in the upper soundproof plate material, after lowering the soundproof plate material located on the lower side, a new cushioning material is provided on the upper surface of the soundproof plate material located on the lower side The method for replacing a cushioning material in a soundproof wall according to claim 4, further comprising a step. The strut is a section steel having a web and two flanges,
The guide groove is a groove portion surrounded by the web and the two flanges,
The cushioning material for a soundproof wall according to any one of claims 1 to 5, wherein the slide-side member and the fixed-side member are attached to the support so as to grip the flange. method of exchange. The slide side member and the fixed side member each have a bolt that penetrates itself and contacts the flange,
Temporarily fixing the slide side member to the column by tightening the bolt,
The method for replacing a cushioning material in a soundproof wall according to any one of claims 1 to 6, wherein the fixed side member is fixed to the support column by tightening the bolt.

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