JP6083045B2 - Construction method of light-weight embankment side wall and wall panel used therefor - Google Patents

Description

  The present invention relates to a wall panel used for construction of a lightweight embankment side wall formed along a side surface of a light embankment in which plates or blocks made of a synthetic resin foam are stacked, and a column body and a panel serving as a side wall column The present invention relates to a wall panel integrated with a material, and further relates to a method for constructing a lightweight embankment using 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 column is 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.

  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.

  In Patent Document 2, a column is composed by connecting unit columns, and at the same time, a wall panel is composed of a synthetic resin foam core material and a surface material, so that the column is installed and the wall panel is attached and repaired. There is disclosed a lightweight embankment that is configured so that it can be easily performed manually without using heavy machinery.

JP 2010-222806 A JP 2012-233310 A

  The side wall for lightweight embankment disclosed in Patent Document 2 can be manually constructed without using heavy machinery, but the unit column body and the wall panel that become the column are not integrated, but after connecting the unit column bodies and installing the column, It was necessary to attach a wall panel to the column, and a simpler construction method was required.

  The subject of this invention is providing the wall panel used for the construction method of the side wall for lightweight embankment which can be constructed in a short time by simpler work than before, and this construction method.

1st of this invention is a wall panel used for construction of the side wall for lightweight embankment constructed along the side of the lightweight embankment which piled up the board or block of the synthetic resin foam,
A column member provided with a panel material, and a circular tube and a flat fin that protrudes in a radial direction from the outer periphery of the circular tube, and the fin is inserted into an end of one side of the panel material. Is attached along the panel material,
A groove portion into which the circular pipe can be fitted is provided on one side of the panel material opposite to the one side to which the column body is attached.

In the wall panel of this invention, the following structure is included as a preferable aspect.
The outer diameter of the circular pipe is larger than the width of the groove.
When one circular pipe of the two wall panels is fitted into the other groove and the two wall panels are connected, there is a gap between the panel materials of the two wall panels.
A ridge is formed on one of the two opposite sides of the panel material orthogonal to the one side to which the column body is attached, and a ridge fitting recess for fitting the ridge is formed on the other. .
The said panel material is a composite board which provided the surface material on the surface of the core material of a synthetic resin foam.

2nd of this invention is the construction method of the side wall for lightweight embankment constructed along the side of the lightweight embankment which piled up the board or block of the synthetic resin foam,
Using a plurality of the first wall panels of the present invention,
The step of fitting one circular pipe of the two wall panels into the other groove and connecting the two wall panels is repeated.

In the construction method of the side wall for lightweight embankment of the present invention, a concrete floor slab is sandwiched in the middle part in the height direction of the lightweight embankment,
A plurality of the wall panel circular pipes are connected to each other through a panel fixing bracket in the central axis direction, and the panel fixing bracket is connected to the concrete floor slab, thereby reducing the side wall formed of the plurality of wall panels from the light weight. Fixing to the embankment is included as a preferred embodiment.

  In the present invention, since the wall panel has a structure in which the column body is attached to the panel material and integrated, the conventional support column is erected and the wall panel is attached to the support column by connecting a plurality of wall panels. Can be performed simultaneously. In addition, the two wall panels can be connected together by simply pushing the circular tube of the pillar into the groove and fitting, and it is not necessary to position the column according to the wall panel. Therefore, the construction of the side wall using the wall panel of the present invention is very simple and can be performed in a shorter time than a conventional structure in which the support column and the wall panel are not integrated. Moreover, it can be easily removed and repaired easily. Further, by providing play in the fitting portion between the circular pipe and the groove, the side wall can be bent easily corresponding to the case where the side surface of the lightweight embankment is bent. Furthermore, a side wall and a lightweight embankment can be easily integrated by attaching the panel fixing metal fitting used for the connection of the circular tubes of two wall panels to the concrete slab sandwiched between the lightweight embankments.

It is sectional drawing of the lightweight embankment which has the side wall for lightweight embankment constructed | assembled using the wall panel of this invention, and is sectional drawing in the panel material of a side wall. It is sectional drawing of the lightweight embankment which has the side wall for lightweight embankment constructed | assembled using the wall panel of this invention, and is sectional drawing in the circular pipe of a side wall. It is a figure which decomposes | disassembles and shows typically the structure of the wall panel of this invention. It is a perspective view which shows the state which faced | matched two wall panels of this invention in the center axis direction of the circular pipe. It is a perspective view which shows the structure of an example of the panel fixing metal fitting used when connecting two wall panels of this invention to the center axis direction of a circular tube. It is a perspective view which shows the state which attached the panel fixing metal fitting shown in FIG. 4 to the wall panel. It is a figure which shows the structure of the edge | side which attached the column of the wall panel of this invention, and the edge opposite to this edge | side, (a) is sectional drawing of the state before connecting two wall panels, b) is a cross-sectional view of a state in which two wall panels are connected via a circular tube. It is sectional drawing which shows the state which bent and connected two wall panels of this invention. It is a figure which shows the structure of the protrusion and recessed part of two sides orthogonal to the edge | side which attached the column of the panel material which concerns on this invention, (a) is sectional drawing of the state before connecting two wall panels. (B) is sectional drawing of the state which fitted and connected one protrusion to the other recessed part. It is a figure which shows a mode that the wall panel of this invention is connected in two dimensions.

  Hereinafter, the present invention will be further described with reference to the drawings. In the drawings to be 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 molded 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.

  A side wall 2 is formed by connecting a plurality of wall panels 12 along the side surface of the lightweight embankment 1 shown in the figure. Reference numerals 13a and 14 in the figure denote a circular tube and a panel material which are constituent members of the wall panel 12.

  The lower end of the wall panel 12 is inserted into and supported by a rail 8 attached to a support base 5 made of concrete or the like, and the circular tube 13a passes through the rail 8 and is supported by a coupling tool (not shown). It is connected to the base 5.

  On the upper surface of the lightweight embankment 1, an upper concrete floor slab 4 is formed in a region covering the upper surface of the lightweight embankment 1 and above the wall panel 12. The upper concrete floor slab 4 is provided with a cover material 6 projecting above the wall panel 12, and is formed from the lightweight embankment 1 to the cover material 6. Usually, the upper concrete floor slab 4 is formed by placing concrete (not shown) on the lightweight embankment 1 and then placing concrete, so that the cover material 6 can be attached to this reinforcement.

  The cover material 6 in this example is formed with a recess 7 that opens downward. The concave portion 7 is formed in a groove shape opened on the lower surface of the upper concrete floor slab 4 corresponding to the position of the wall panel 12, and the upper end of the wall panel 12 is accommodated in the concave portion 7 with play around. . If it does in this way, the upper end of the wall panel 12 can be supported by the upper concrete floor slab 4, and a fall can be prevented. In addition, since play is held around, the load is not applied to the wall panel 12 even if the lightweight embankment 1 sinks over time, and the vibration of the lightweight embankment 1 is not directly transmitted, so that the earthquake resistance is also improved. improves.

  An intermediate concrete floor slab 3 is sandwiched between intermediate portions of the lightweight embankment 1 in the height direction. This intermediate concrete floor slab 3 can be formed by placing concrete on a lightweight embankment 1 in the middle of stacking and placing concrete. When the intermediate concrete floor slab 3 is provided, it is preferable to connect the two wall panels 12 with the panel fixing metal 11 in the circular pipe 13 a and fix the panel fixing metal 11 to the intermediate concrete floor slab 3.

  As shown in FIG. 3, the wall panel 12 of the present invention comprises a square or rectangular panel member 14 and a long column 13, and as shown in FIG. 3, FIG. 4 and FIG. The body 13 includes a circular tube 13a and flat plate-like fins 13b protruding in the radial direction from the outer periphery of the circular tube 13a. And the pillar 13 and the panel material 14 are integrated by inserting the fin 13b of the pillar 13 in the edge part of the one side of the panel material 14. FIG. And the groove part 14b which this circular tube 13a can fit in is formed in the one side opposite to one side of the panel material 14 to which the column 13 was attached.

  In the present invention, as shown in FIG. 7 (b), when one circular tube 13a of the two wall panels 12 and 12 is fitted into the other groove portion 14b, the two wall panels 12 and 12 are panel. It is desirable to adjust the depth t4 of the groove 14b according to the size of the circular tube 13a so that a gap t5 is interposed between the materials. Thus, by providing play between the panel members of the two wall panels 12 and 12, the wall panels 12 and 12 can be bent and connected at the fitting portion as shown in FIG. When the side surface of the lightweight embankment 1 is bent, the side wall 2 can be bent along the side surface.

  In the present invention, it is preferable that the outer diameter t1 of the circular tube 13a is larger than the width t3 of the groove portion 14b, so that the circular tube 13a is less likely to come off from the groove portion 14b after fitting. However, if (t1-t3) is too large, it is difficult to manually fit the circular tube 13a into the groove portion 14b. Therefore, the size is adjusted in consideration of the constituent materials of the circular tube 13a and the concave portion 14b.

  Further, in the present invention, in order to facilitate the connection of the two wall panels 12 in the central axis direction of the circular tube 13a, as shown in FIG. 3 and FIG. It is preferable to provide a protrusion 14a along one side of the two sides orthogonal to one side to which 13 is attached, and a recess 14c into which the other protrusion 14a can be fitted. Thus, by providing the protrusion 14a and the recessed part 14c, as shown in FIG.9 (b), the two side wall panels 12 and 12 can be easily connected by fitting each other. . Further, as shown in FIG. 9B, the height t7 of the protrusion 14a and the depth of the recess 14c are formed so that a gap t10 is formed between the panel members of the two wall panels 12, 12 after fitting. It is preferable to adjust the length t9. In addition, the width t6 of the protrusion 14a is equal to or slightly smaller than the width t8 of the recess 14c to facilitate fitting.

  In the present invention, as the panel fixture 11 when connecting the circular tubes 13a of the two wall panels, the joint fixture 20, the support fixture 31, the L-type fixture 41, and the floor slab fixture 51 shown in FIG. A fixing bracket made up of

  The joint metal fitting 20 includes an L-shaped panel joint portion 21 provided with insertion pieces 21a on one side of two metal pieces constituting the L shape, and a cylindrical slide groove in a portion facing the panel joint portion 21. And a joint receiver 22 having 22a. The support fitting 31 is a cylindrical member provided with a slide bolt 31 that can change the position of the nut 31 b, and has an outer diameter slightly smaller than the inner diameter of the joint receiver 22. The L-shaped fixture 41 includes a slide groove 41a into which a slide bolt 31b can be inserted.

  FIG. 6 shows a state in which the wall panels 12 and 12 are connected in the horizontal direction, and the panel fixture 11 of FIG. 5 is attached to the circular tube 13a of one wall panel 12. The panel fixing bracket 11 is attached by first attaching the floor slab fixing bracket 51 so that the formwork fixing surface 51a is in contact with the concrete mold when the intermediate concrete floor slab 3 is placed in the concrete. The L-shaped fixing bracket 41 is attached to a portion protruding from the intermediate concrete floor slab 3. On the other hand, one circular tube 13a of the wall panels 12, 12 is fitted and integrated with the other concave portion 14b, and the insertion piece 21a of the joint fitting 20 is inserted into the circular tube 13a. Next, the support fitting 31 is inserted into the joint receiver 22 of the joint fitting 20. At this time, the slide bolt 31a attached to the support bracket 31 is inserted into the slide groove 22a provided in the joint receiver 22 and the slide groove 41a of the L-shaped fixing bracket 41, and the nuts 32b and 32b are tightened to tighten the L-shaped fixing bracket 41. The slide bolt 31a is fixed to

  At this time, the positions of the nuts 32b and 32b are adjusted in accordance with the distance between the L-shaped fixture 41 and the joint receiver 22. In addition, regarding the vertical positional relationship between the L-shaped fixing bracket 41 and the joint receiver 22, if the slide groove 22 a of the joint receiver 22 and the slide groove 41 a of the L-shaped fixing bracket 41 overlap each other, They can be fixed together. That is, if the panel fixing bracket 11 shown in FIG. 5 is used, even if the distance between the vertical end of the intermediate concrete floor slab 3 and the vertical end of the wall panel 12 is slightly deviated, the wall panel 12 Even if the horizontal distance between the intermediate concrete slabs 3 is not constant, the wall panel 12 can be attached to the intermediate concrete slab 3 as long as it can be adjusted by the panel fixing bracket 11.

  As the circular pipe 13a constituting the wall panel 12 of the present invention, a steel pipe is preferably used. Moreover, the same steel material is used also as the fin 13b, and is attached to the circular pipe 13a by welding or the like.

  As shown in FIGS. 4, 7, and 9, the wall panel 12 is composed of a composite plate in which a surface material 16 is provided on the surface of a core material 15 of a synthetic resin foam. As the synthetic resin foam constituting the core member 15 of the wall panel 12, for example, a polystyrene foam, a polyethylene foam, a polyurethane foam, or the like can be used. The core material 15 may be an extruded foam molded product, a bead foam molded product, or a material injected and foamed between the surface materials 16. Preferably, since it is excellent in rigidity, it is a polystyrene-based extruded foam molded product. The surface material 16 is preferably a metal plate such as a galvalume steel plate from the viewpoint of strength, weather resistance, and the like.

  In the wall panel 12 in this example, reinforcing members 17, 18a, 18b, and 18c are attached around the panel member 14 in order to increase the strength of the connection portion. The reinforcing members 17, 18a, 18b, and 18c are not particularly limited, but stainless steel is preferably used, and hot-rolled steel plates are preferably used. The surface material 16 and the reinforcing materials 17, 18a, 18b, and 18c described above are preferably fixed to the core material 15 with pins or screws as necessary.

  As shown in FIG. 10, the construction method of the side wall 2 of the present invention is such that one circular tube 13a of the two wall panels 12, 12 is fitted into the other groove portion 14b, and the two wall panels 12, 12 are fitted. The plurality of wall panels 12, 12... Are connected in the radial direction of the circular tube 13a by repeating the step of connecting the two. And in this example, by repeating the operation | work which fits the protrusion 14a provided in one panel material 14 of the two wall panels 12 and 12 to the recessed part 14c of the other panel material 14, several wall panel 12 is provided. , 12... Can be connected in the direction of the central axis of the circular tube 13a. In this connection, as shown in FIG. 4, the circular tubes 13 a are connected to each other through the panel fixing bracket 11, and the side wall 2 is connected to the intermediate concrete floor slab 3 as shown in FIGS. Connect to

  10 shows a configuration in which the circular tube 13a is arranged in the vertical direction on the paper surface, that is, in the vertical direction, the present invention is not limited to this configuration, and the circular tube 13a is disposed in the horizontal direction on the paper surface, that is, horizontally. A configuration arranged along the direction is also applied.

  In the present invention, since the fins 13b of the column 13 have the width t2, collapse of the side wall 2 can be suppressed even when subjected to earth pressure from the lightweight embankment 1.

  1: Lightweight embankment, 2: Side wall, 3: Intermediate concrete floor slab, 4: Upper concrete floor slab, 5: Support base, 6: Cover, 7: Recess, 8: Rail, 11: Panel fixing bracket, 12: Wall panel , 13: pillar, 13a: circular tube, 13b: fin, 14: panel material, 14a: ridge, 14b: groove, 14c: recess, 15: core material, 16: surface material, 17, 18a, 18b: reinforcement 20: Joint fitting, 21: Panel joint portion, 21a: Insert piece, 22: Joint receiver, 22a: Slide groove, 31: Support fitting, 31a: Slide bolt, 31b: Nut, 41: L-type fixing fitting, 41a : Slide groove, 51: Floor slab fixing bracket, 51a: Formwork fixing surface

Claims (7)

A wall panel used for the construction of a lightweight embankment constructed along the side of a lightweight embankment in which synthetic resin foam plates or blocks are stacked,
A column member provided with a panel material, and a circular tube and a flat fin that protrudes in a radial direction from the outer periphery of the circular tube, and the fin is inserted into an end of one side of the panel material. Is attached along the panel material,
A wall panel, wherein a groove portion into which the circular tube can be fitted is provided on one side of the panel material opposite to the one side to which the column body is attached.   The wall panel according to claim 1, wherein an outer diameter of the circular pipe is larger than a width of the groove portion.   When one circular tube of two wall panels is fitted into the other groove and the two wall panels are connected, a gap is provided between the panel materials of the two wall panels. The wall panel according to claim 1 or 2.   A protrusion along the side is formed on one of the two opposite sides of the panel material orthogonal to the side to which the column is attached, and a recess capable of fitting the protrusion is formed on the other. The wall panel according to any one of claims 1 to 3, wherein the wall panel is provided.   The wall panel according to any one of claims 1 to 4, wherein the panel material is a composite plate in which a surface material is provided on a surface of a core material of a synthetic resin foam. A construction method of a lightweight embankment constructed along the side of a lightweight embankment in which synthetic resin foam plates or blocks are stacked,
Using a plurality of the wall panels described in any one of claims 1 to 5,
A method of constructing a lightweight embankment sidewall characterized by repeating the step of fitting one circular pipe of two wall panels into the other groove and connecting the two wall panels. A concrete floor slab is sandwiched in the middle part in the height direction of the lightweight embankment,
A plurality of the wall panel circular pipes are connected to each other through a panel fixing bracket in the central axis direction, and the panel fixing bracket is connected to the concrete floor slab, thereby reducing the side wall formed of the plurality of wall panels from the light weight. It fixes to a banking, The construction method of the side wall for lightweight banking of Claim 6 characterized by the above-mentioned.

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