JP2012233310A - Lightweight embankment sidewall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight embankment sidewall 4 capable of being easily constructed and repaired without using a heavy machine.SOLUTION: A plurality of unit pole bodies 12a, with attachment sections 15 which grip edge sections of wall panels 3, interlocked in a central axis direction of the unit pole body 12a are used as a support post 2a erected at a liner section of a lightweight embankment sidewall 4 so that the support post 2a can be easily transported and assembled. Also, a lightweight composite board with a surface material on a surface of a core material made of synthetic resin foam body is used for the wall panel 3.

Description

  The present invention is a lightweight embankment side wall formed along the side surface of a lightweight embankment in which synthetic resin foam plates are stacked, and is attached between the struts erected along the side surface of the lightweight embankment. It is related with the side wall provided with the wall panel.

  Conventionally, as shown in Patent Document 1, along the side of a lightweight embankment in which synthetic resin foam plates are stacked, an H-shaped steel column is erected with the space portion sandwiched between both flanges facing each other. There is known a light-weight embankment side wall in which a wall panel is installed so that an end portion is inserted into a space portion between flanges of adjacent struts. Usually, the struts are firmly self-supporting by being driven into the soil or supported by foundation concrete. Moreover, the concrete board is normally used as a wall panel.

JP 2010-222806 A

  However, in the case of the above-mentioned conventional light-weight embankment side walls, long and heavy H-shaped steel columns are erected firmly, and concrete heavy wall panels are dropped from the top of the erected columns in sequence between the columns. Therefore, heavy machinery is indispensable for construction, and there is a problem that construction cost is high. In addition, if the wall panel is damaged, it cannot be replaced unless a heavy machine is inserted, and there is a problem that maintenance and management are laborious and costly. Furthermore, when constructing a side wall having a bent portion, it is necessary to erect two pillars whose directions are changed at the corners, and there is a problem that it takes time to align the direction.

  The present invention has been made in view of the above-described conventional problems, and a first object of the present invention is to provide a lightweight embankment that can be easily constructed and repaired without using heavy machinery. Moreover, this invention makes it the 2nd objective to enable it to construct | assemble easily even if it is a side wall which has a bending part.

For the above-mentioned purpose, the present invention is for lightweight embankment comprising struts erected along the side of a lightweight embankment in which synthetic resin foam boards or blocks are stacked, and a wall panel attached between the struts. On the side wall,
A column erected on a straight portion of the light-weight embankment side wall connects a plurality of unit pillars provided with attachment portions for gripping end portions of the wall panel in a central axis direction, and the wall panel Is a composite board in which a surface material is provided on the surface of a core material of a synthetic resin foam, and its end is gripped by the mounting part and attached between the columns. Is to provide.

Further, in the present invention described above, the support column erected at the corner of the bent portion of the lightweight embankment side wall is provided with one or a plurality of attachment portions for gripping the end portion of the wall panel in one direction. A plurality of unit pillars connected in the direction of the central axis, and the unit pillars being connectable by shifting the orientation of the mounting portion around the central axis;
The support columns erected at the corners of the bent portion of the lightweight embankment side wall are arranged on the outer peripheral side with a plurality of outer cylinders in which one or a plurality of mounting portions for holding the end of the wall panel are provided in one direction. A plurality of unit column bodies fitted in the central axis direction, and the outer cylinder can be fitted into the unit column body by shifting the direction of the mounting portion around the central axis,
An upper concrete floor slab is formed in an area covering the upper side of each column from the upper surface of the lightweight embankment, and a recess is formed on the lower surface of the upper concrete floor plate corresponding to the position of at least some columns. And the upper end of the corresponding column is accommodated in the recess with play around, while the lower end of each column is supported in a state that allows tilting,
An intermediate concrete floor slab is sandwiched between intermediate portions in the height direction of the lightweight embankment, and at least a portion of the intermediate portion of the column is a connecting tool that variably connects at least a vertical connection angle. It is included as a preferable aspect that it is connected to.

  Usually, the side wall for lightweight embankment is constructed | assembled sequentially with the lamination | stacking of the board | plate or block of the synthetic resin foam which comprises a lightweight embankment. Since the column in the present invention is configured by connecting unit column bodies, it can be connected with the stack of synthetic resin foam plates or blocks, and can be sequentially extended to the height required for mounting the wall panel. . Therefore, it is possible to eliminate the work of lifting and attaching the wall panel when it is installed, and the wall panel is a composite plate of a synthetic resin foam core material and a surface material, and is light in weight. Can be attached. Moreover, since the unit support | pillar can be shortened and lightened, a support | pillar can also be easily installed manually. The same applies to repairs, and wall panels and columns can be easily replaced manually.

  In particular, with respect to the side wall having a bent portion, the wall panel can be connected in a bent state by only standing one column at the corner of the bent portion, and the orientation of the mounting portion can be adjusted. The panel mounting angle can be easily adjusted.

  In addition, when the upper end of each column is stored in a recess provided on the lower surface of the upper concrete floor slab with play around it, and the lower end of the column is supported in a state that allows tilting, the settlement of the lightweight embankment, etc. In addition, the side wall is flexibly supported by the lightweight embankment without being affected by the above, and the earthquake resistance can be improved. Moreover, if the intermediate part of the column is connected to the intermediate concrete floor slab with a connection tool that variably connects at least the connection angle in the vertical direction, the flexible support force of the side wall by the lightweight embankment can be increased.

It is sectional drawing of the lightweight banking which has the side wall for lightweight banking which concerns on this invention. It is sectional drawing of the state which removed the wall panel in FIG. It is explanatory drawing of the support | pillar of a linear part, (a) is a top view, (b) is a front longitudinal cross-sectional view. It is sectional drawing of a wall panel. It is explanatory drawing of the combination state of the support | pillar and wall panel in a linear part, (a) is a top view, (b) is a front view. It is a figure which shows an example of the support | pillar provided in the corner | angular part of a bending part, (a) is a top view, (b) is a front view. It is a figure which shows the other example of the support | pillar provided in the corner | angular part of a bending part, (a) is a top view, (b) is a front view.

  Hereinafter, the present invention will be further described with reference to the drawings. In the drawings referred to below, the same reference numerals indicate the same components.

  As shown in FIGS. 1 and 2, a lightweight embankment 1 is constructed by stacking synthetic resin foam plates or blocks. The synthetic resin foam plate or block constituting the lightweight embankment 1 may be an extruded foam-formed product or a bead foam-molded product, but is preferably an extruded foam-molded product because of its excellent compressive strength and low water absorption. As the synthetic resin, polystyrene is preferable because a foam excellent in compressive strength can be obtained.

  Along the side surface of the lightweight embankment 1 shown in the figure, support columns 2 are erected at intervals corresponding to the width of the wall panel 3, and the wall panel 3 is attached between the support columns 2 a to form side walls 4. Yes.

  The lower end of the column 2a is supported to be tiltable. In this example, the support 2a is inserted into a receiving portion 6 (see FIG. 2) formed on a support base 5 made of concrete or the like with a margin around the periphery, and the surrounding space is lightly filled with gravel and the like. Is supported by that.

  On the upper surface of the lightweight embankment 1, an upper concrete floor slab 7 is formed in a region covering the upper surface of the lightweight embankment 1 and above the support 2a. The upper concrete floor slab 7 is provided with a cover material 8 projecting above the column 2a, and is formed from the light weight embankment 1 to the cover material 8. Usually, the upper concrete floor slab 7 is formed by placing reinforcement (not shown) on the lightweight embankment 1 and then placing concrete, so the cover material 8 should be attached to this reinforcement. Can do.

  The cover material 8 in this example is formed with a recess 9 that opens downward. The concave portion 9 is formed in a groove shape opened on the lower surface of the upper concrete floor slab 7 corresponding to the positions of the columns 2 a and the wall panel 3, and the upper ends of the columns 2 a and the wall panel 3 play around in the concave portion 9. Has been stored. If it does in this way, the upper end of the support | pillar 2a and the wall panel 3 can be supported by the upper concrete floor slab 7, and a fall can be prevented. In addition, since play is provided in the surroundings, no load is applied to the columns 2a and the wall panel 3 even if the lightweight embankment 1 sinks over time, and the vibration of the lightweight embankment is not directly transmitted. Also improves. The support by the concave portion 9 may be such that the upper end of the wall panel 3 is made lower than the lower surface of the upper concrete floor slab 7 and only the upper end of the column 2a. In this case, the concave portion 9 can be shaped like an inverted cup. In addition, the recesses 9 may be formed corresponding to the upper ends of all the columns 2a, but the recesses 9 are formed only corresponding to the upper ends of some of the columns 2a, and there is play around the recesses 9. You may hold and support the upper end part of the corresponding support | pillar 2a. When the recesses 9 are formed corresponding to only the upper ends of some of the columns 2a, the upper ends of the columns 2a that do not form the corresponding recesses 9 may be lower than the lower surface of the upper concrete floor slab 7.

  An intermediate concrete floor slab 10 is sandwiched between intermediate portions of the lightweight embankment 1 in the height direction. The intermediate concrete floor slab 10 can be formed by placing the concrete on the lightweight embankment 1 in the middle of stacking and placing concrete. When providing this intermediate concrete floor slab 10, it is preferable to connect between the intermediate part of the support | pillar 2a and the intermediate concrete floor slab 10 with the connecting tool 11 which connects at least the connection angle of an up-down direction variably. By making the connection angle in the vertical direction variable, it is possible to prevent a load from being applied to the column 2a due to the sinking of the lightweight embankment 1. When connecting the columns 2a and the intermediate concrete floor slab 10, it is preferable to connect all the columns 2a, but only some of the columns 2a may be connected.

  1 and 2 is provided on the straight portion of the side wall 4 formed along the straight side surface of the lightweight embankment 1, and is a prism as shown in FIG. Yes. Although it can also be a cylinder, the prism is more continuous with the wall panel 3 arranged linearly, and the side wall 4 having a good appearance can be easily formed.

  The column 2a of this example is formed by connecting a plurality of unit column bodies 12a in the central axis direction. As shown in FIG. 3, the unit column body 12a is also formed of a square pipe outside the inner tube 13a formed of a square pipe, and an outer tube 14a having the same length as the inner tube 13a is connected to the inner tube from one end. Both are fixed so that 13a may protrude partially. On the outer peripheral surface of the outer tube 14a, a planar U-shaped mounting portion 15 that sandwiches and holds the left and right side end portions of the wall panel 3 (see FIGS. 1, 4, and 5) is a position (circumferential direction). At a position 180 degrees apart from each other), a plurality of them are attached at intervals in the direction of the central axis. The unit column 12a can be connected by inserting the protruding side of the inner tube 13a into the outer tube 14a on the side where the inner tube 13a is retracted.

  The wall panel 3 is comprised with the composite board which provided the surface material 17 on the surface of the core material 16 of a synthetic resin foam, as FIG. 3 shows. As the synthetic resin foam constituting the core material 16 of the wall panel 3, for example, a polystyrene foam, a polyethylene foam, a polyurethane foam, or the like can be used. The core material 16 may be an extruded foam molded product, a bead foam molded product, or a material injected and foamed between the surface materials 17. Preferably, since it is excellent in rigidity, it is a polystyrene-based extruded foam molded product. As the surface material 17, for example, a metal plate such as a galvalume steel plate is preferable from the viewpoint of strength, weather resistance, and the like. In the wall panel 3 in this example, the upper and lower ends are the protrusions 18 and the other ends are the grooves 19 into which the protrusions 18 can be inserted so that they can be connected in the vertical direction.

  The assembly of the support 2a and the attachment of the wall panel 3 to the support 2a are performed in parallel as shown in FIG. That is, first, the unit column 12a is set up on the support 5 (see FIGS. 1 and 2). The unit column body 12a is preferably set to a length that matches the length of the side end portion of the wall panel 3, but may be shorter or longer. If necessary, a single unit column body 12a or a plurality of unit column bodies 12a are connected to stand, and a side end portion of the wall panel 3 into which the support material 20 is fitted is fitted to the plurality of attachment portions 15. And fix with screws if necessary. The support material 20 is a bar-shaped material having a U-shape, and functions as a reinforcing material for the side end portion of the wall panel 3 by sandwiching and attaching the side end portion of the wall panel 3. After the wall panel 3 is mounted, the lightweight embankment 1 is piled up to an appropriate height, and another unit column 12a is connected to the upper end of the unit column 12a to which the wall panel 3 is mounted, and fixed with screws or the like as necessary. After that, the wall panel 3 is attached to the new unit column body 12a on the upper side in the same manner. And the side wall 4 of required height can be constructed | assembled by stacking the lightweight embankment 1 again, and also repeating the connection of the unit column body 12, and the attachment of the wall panel 3. FIG.

  As described above, the support column 2a formed by connecting the unit column bodies 12a described in FIG. 3 is used for the straight portion of the side wall 4 formed along the straight side surface of the lightweight embankment 1. is there. For example, a column 2b shown in FIG. 6 is used at the corner of the bent portion of the side wall 4 formed along the bent side surface of the lightweight bank 1. The support column 2b in FIG. 6 is the same as the support column 2a described above in that a plurality of unit column bodies 12b are connected in the central axis direction. However, in the unit column body 12a of the support column 2a described above, the attachment portion 15 is provided in two directions, whereas the attachment portion 15 of the unit column body 12b of the support column 2b in FIG. 6 is oriented in one direction. It has become. The unit column body 12b shown in FIG. 6 is provided with one mounting portion 15, but a plurality of mounting portions 15 can be provided in the central axis direction with respect to one unit column body 12b. Even in this case, the attachment part 15 provided in one unit pillar 12b is provided in the same direction.

  The unit column body 12b is formed by fitting an outer tube 14b having the same length as the inner tube 13b on the outside of the inner tube 13b so that the inner tube 13b partially protrudes from one end and fixing both. However, the inner tube 13b is a square pipe and the outer tube 14b is a circular pipe. The inner pipe 13b may be a circular pipe, but the square pipe is used for the purpose of improving the bending resistance, so that the attachment portion 15 is preferably provided at the corner of the inner pipe 13b.

  The unit column bodies 12b are connected in the same manner as the unit column bodies 12a (see FIG. 3). However, since the outer tube 14b is formed by a circular tube fitted with the inner tube 13b, the upper and lower unit column bodies 12b are connected. The position of the mounting portion 15 can be connected by shifting it to an arbitrary angle around the central axis. Therefore, if the position of the mounting portion 15 of the upper and lower unit columnar bodies 12b standing at the corner of the bent portion bent at 90 ° is shifted 90 ° around the central axis, the left and right wall panels 3 are moved 90 °. Can be connected at an angle of

  The length of the unit column 12b is ¼ of the length of the side end of the wall panel 3 so that the side end of one wall panel 3 can be gripped by the mounting portion 15 at two or more places with a gap. The following length is preferable. By connecting such relatively short unit column bodies 12b while alternately shifting the directions of the attachment portions 15, the wall panel 3 at the bent portion can be stably supported.

  A support column 2c shown in FIG. 7 can be erected at the corner of the bent portion of the side wall 4. This support | pillar 2c has connected the several unit pillar 12c which fitted the some outer cylinder 21 in which the attaching part 15 was provided in one direction to the outer peripheral side to the center axis direction. A plurality of mounting portions 15 in this example can also be provided in the direction of the central axis with respect to one unit column body 12c. Even in this case, the mounting portions 15 provided in one unit column body 12c are directed in the same direction. Provided.

  The unit column body 12c is formed by fitting an outer tube 14b having the same length as the inner tube 13c on the outside of the inner tube 13c so that the inner tube 13c partially protrudes from one end and fixing both. The inner tube 13c is a square pipe and the outer tube 14c is a circular pipe, as in the example of FIG. The outer cylinder 12e is a cylindrical object that fits on the outer peripheral side of the outer tube 14c. In addition, the outer cylinder 21 can be fitted into the unit column body 12c with the orientation of the mounting portion 15 being shifted around its central axis. In this example, the wall panel 3 in the bent portion can be stably supported by adjusting the circumferential position when the outer cylinder 21 is fitted. In the case of this example, if the length of the unit column 12c is the same as that of the unit column 12a shown in FIG. 3, and the length of the outer cylinder 21 is equivalent to that of the unit column 12b shown in FIG. Is preferable.

  The assembly of the columns 2b and 2c and the attachment of the wall panel 3 to the columns 2b and 2c can be performed in the same manner as the assembly of the column 2a and the attachment of the wall panel 3 to the column 2a.

DESCRIPTION OF SYMBOLS 1 Light weight embankment 2a, 2b, 2c Support | pillar 3 Wall panel 4 Side wall 5 Support stand 6 Receiving part 7 Upper concrete floor slab 8 Cover material 9 Recessed part 10 Intermediate concrete floor slab 11 Connector 12a, 12b, 12c Unit column 13a, 13b, 13c Inner tube 14a, 14b, 14c Outer tube 15 Mounting portion 16 Core material 17 Surface material 18 Projection portion 19 Groove portion 20 Support material 21 Outer tube

Claims (5)

In a lightweight embankment comprising a support column erected along a side surface of a lightweight embankment in which synthetic resin foam plates or blocks are stacked, and a wall panel attached between the struts,
A column erected on a straight portion of the light-weight embankment side wall connects a plurality of unit pillars provided with attachment portions for gripping end portions of the wall panel in a central axis direction, and the wall panel Is a composite board in which a surface material is provided on the surface of a core material of a synthetic resin foam, and its end is gripped by the mounting part and attached between the columns. .   The pillars erected at the corners of the bent portion of the lightweight embankment side wall are centered on a plurality of unit column bodies in which one or a plurality of mounting portions that grip the end of the wall panel are provided in one direction. The light-weight embankment side wall according to claim 1, wherein the side wall for lightweight embankment is connected in the axial direction, and the unit pillars can be connected by shifting the direction of the mounting portion around the central axis.   The support columns erected at the corners of the bent portion of the lightweight embankment side wall are arranged on the outer peripheral side with a plurality of outer cylinders in which one or a plurality of mounting portions for holding the end of the wall panel are provided in one direction. A plurality of unit column bodies fitted in the central axis direction, and the outer cylinder can be fitted into the unit column body with its mounting portion being deviated around the central axis. The side wall for lightweight embankment according to claim 1 characterized by the above-mentioned.   An upper concrete floor slab is formed in an area covering the upper side of each column from the upper surface of the lightweight embankment, and a recess is formed on the lower surface of the upper concrete floor plate corresponding to the position of at least some columns. The upper end of the corresponding column is accommodated in the recess with play around, while the lower end of each column is supported in a state allowing tilting. The side wall for lightweight embankment as described in any one of these.   An intermediate concrete floor slab is sandwiched between intermediate portions in the height direction of the lightweight embankment, and at least a portion of the intermediate portion of the column is a connecting tool that variably connects at least a vertical connection angle. The light-weight embankment side wall according to claim 4, wherein the light-weight embankment is connected to the side wall.

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