JP6503096B2 - Surface material mounting structure in lightweight filling method and construction structure of lightweight filling method - Google Patents

Description

  The present invention relates to a mounting structure of a surface material and a construction structure of a lightweight filling method in a lightweight filling method in which a civil engineering structure is constructed using a foamed resin block.

  In recent years, in order to take measures against soft ground, landslides, embankment measures on steep slopes and relief of earth pressure, etc., instead of embankment method using soil, blocks such as Styrofoam (hereinafter referred to as "foam resin block") There are cases where a lightweight filling method to construct civil engineering structures such as is adopted. This lightweight filling method can shorten the construction period and reduce costs compared to the filling method using soil.

  FIG. 6 is a cross-sectional view showing an example of a lightweight filling method. This example is an example of laying the road 101 on the slope of the mountain 100. As shown in the figure, when the road 101 is laid by the conventional lightweight filling method, foundation concrete 102 is placed on the construction surface, and a pillar 103 is erected on the foundation concrete 102. Then, a surface material 104 (panel) for a lightweight filling method is attached to the pillar 103 to construct a road wall, and a foam resin block 105 is stacked in the inner space to construct a filling. Thereafter, the upper surface of the foamed resin block 105 is finished with the pavement 106.

  However, in the above-described lightweight fill method, in order to construct the road wall surface with the surface material 104, the support column 103 is necessary, and the metal fitting 107 for attaching the surface material 104 to the support column 103 is also necessary. Therefore, the number of materials such as the columns 103 and the metal fittings 107 is increased, which requires time and labor for construction. Then, the method of attaching the surface material 104 directly to the foamed resin block 105 without using the support | pillar 103 is also considered.

  For example, as a prior art of this type, a panel support member in which a screw for attaching a wall panel is screwed is embedded in a side surface of a block body made of a foamed resin formed in a rectangular parallelepiped shape. There is a wall structure that is fixed by the above (see, for example, Patent Document 1).

  In addition, as another prior art, the external size of the foamed resin block and the planar material (hereinafter referred to as "panel") is set to a predetermined size, and the panel stopper is fixed to the mounting surface of the panel in the foamed resin block. There is a lightweight embankment structure in which a fixing tool is embedded and a panel is fixed to the fixing tool with a fixing tool (see, for example, Patent Document 2).

Unexamined-Japanese-Patent No. 11-140877 JP, 2006-169764, A

  However, in any of the structures of Patent Documents 1 and 2, when the fixing portion for attaching the panel to the foamed resin block is at a position away from the end portion, the wall panel is warped or deformed due to aging or the like. There is a risk of opening at the joints between the panels.

  Further, in any of the above-described structures, compressive creep deformation of the foamed resin block (hereinafter simply referred to as “compression deformation” is also given because the panel is subjected to direct drilling and fixed to the member embedded in the foamed resin block with a screw or the like. The shear force is applied to the fixing portion of the panel through the screws, and the panel may be broken. In particular, in the case of the structure of Patent Document 1, when the foamed resin block is compressed and deformed and the upper, lower, left and right panels come in contact, the panel may be damaged by the load.

  On the other hand, when rainwater or the like entering the back side of the panel stays between the foam resin block and drainage is difficult, retention of water may lower the durability (physical properties) of the panel or the foam resin block.

  In addition, when using a sealing material as a joint material between adjacent panels, panel replacement work by repair etc. is very difficult, and even if some panels are damaged, it takes much time for replacement work It takes effort.

  Therefore, the present invention provides a construction structure of a surface material mounting structure and a light-weight embankment method in a light-weight embankment method capable of easily replacing the surface material while suppressing a load on the surface material due to compression creep deformation of a foamed resin block. The purpose is

In order to achieve the above object, the surface material attaching structure in the light weight filling method of the present invention attaches the surface material to the outer surface of the foamed resin block in the light weight filling method of building a civil engineering structure by stacking the foamed resin blocks. An anchor member fixed to the opposite ends of the outer surface of the foamed resin block, and a holding side support member attached to one of the anchor members and holding one end of the surface member. A stationary support member attached to the other of the anchor members to restrict movement of the other end of the surface material, and a weight receiving member supporting the weight of the surface material, the holding support member the foaming while being configured to cut at Attach to the anchor member fixed to the outer surface of the resin block, the fixed-side support member, the foamed resin Said anchor member fixed to the other of the lock of the outer surface is configured to allow installation and removal, said surface material, and the holding-side supporting member while being supported by the weight receiving member and the stationary side support member Is held between. "Compression deformation" in the specification and claims is a concept including "compression creep deformation".

With this configuration , the anchor member is fixed to the foamed resin block, and one end of the surface material in the lightweight filling method is held by the holding side supporting member on the anchor member fixed to the outer surface of the foamed resin block. receiving and supporting a member, be attached to hold the other end of the surface material in a fixed-side supporting member, it can be attached to surface member on the outer surface of the foamed resin block. Since the attached surface material is not directly fixed to the foamed resin block, the surface material moves between the holding side supporting member and the stationary side supporting member even if the foamed resin block is subjected to compression deformation or displacement. A structure in which a large force does not act on the attached portion can be adopted. Moreover, the surface material can be easily replaced by removing the fixed side support member.

  Moreover, you may have the holding member which ensures space on the back surface side of this surface material between the said surface material and a foamed resin block.

  According to this structure, a drainage path can be secured on the back surface side of the surface material by the holding member provided between the panel and the foamed resin block, and rainwater or the like entering from the upper portion can be efficiently drained downward. . In addition, it is possible to ease the warpage of the surface material to the back side.

  The holding side support member may be U-shaped in cross section, and the fixed side support member may be Z-shaped in cross section.

  According to this structure, one end of the surface material in the lateral direction is held by the holding side support member of the U-shaped cross section, and the other end of the surface material in the lateral direction is fixed by the fixed side support member of the Z-shaped cross section. Since the attachment of the surface material is completed by regulating the movement of the surface material, the work of attaching the surface material to the foamed resin block can be efficiently performed.

  In addition, a gasket may be provided between the upper portion of the surface material and the adjacent member, and the gasket may have water permeability. Among the gaskets having water permeability, there are a gasket formed of a material having water permeability, a gasket having a water penetration groove and the like.

  According to this structure, the space between the surface materials supported by the respective foamed resin blocks is sealed with a gasket to appropriately prevent rain water or the like from entering the back side of the surface material, and rain water or the like enters the back side of the surface material However, since it has water permeability, it can be drained downward.

  On the other hand, the construction structure of the light weight filling method according to the present invention comprises any of the above-mentioned surface material mounting structures, wherein the weight of the surface material is supported by a weight receiving member, and one end of the surface material is held by a holding side supporting member. A plurality of foamed resin blocks having the other end fixed by the fixed side supporting member are stacked to construct a civil engineering structure, and water permeability is established between the upper surface of the stacked foamed resin block and the adjacent surface material. The gasket is mounted, and the gasket is mounted between the stationary support member and the adjacent support member.

  According to this configuration, even if compression creep deformation occurs in the foamed resin block, the surface material can be moved between the holding side support member and the fixed side support member so that a large force does not act on the attached portion. In addition, the workability of the civil engineering construction by the light weight filling method including the construction of the surface material can be improved, and even when the surface material is replaced, only a part of the surface material can be removed and easily replaced.

  Further, the gasket having water permeability may have a water permeable groove in the longitudinal direction on the surface in contact with the foamed resin block.

  According to this structure, the rainwater entering from the upper portion can be rapidly drained downward through the water transmission groove.

  According to the present invention, even if the foamed resin block is subjected to compressive deformation or displacement, the mounting structure does not impose a load on the surface material, and it becomes possible to prevent the deformation or breakage of the surface material.

  Further, when replacing the surface material, the surface material can be easily desorbed by removing the fixed side support member, and the surface material can be replaced with good working efficiency.

FIG. 1 is a perspective view of a foamed resin block provided with a facing mounting structure according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view taken along the line II-II in FIG. FIG. 3 is a perspective view showing one of the gaskets shown in FIG. FIG. 4 is a longitudinal sectional view showing a joint portion in a state in which the foamed resin blocks shown in FIG. 1 are stacked. FIG. 5 is a side view of a wall constructed of the foamed resin block shown in FIG. FIG. 6 is a cross-sectional view of a road constructed by the light weight filling method of the conventional surface material mounting structure.

  Hereinafter, embodiments of the present invention will be described based on the drawings. In the following embodiment, a structure in which a surface material is attached to a foamed resin block having a rectangular shape with a laterally long side view of the outer surface will be described as an example.

  As shown in FIG. 1, the foamed resin block 1 is formed of expanded polystyrene or the like, and the outer surface 2 is a block in which a side view of the outer surface 2 is formed in a horizontally long rectangular shape. Anchor members 10 are attached to the upper and lower two locations at the left and right positions (the opposite ends) on the outer surface 2 of the foamed resin block 1 (only the right end is shown in the figure). The anchor members 10 are preferably attached to at least two upper and lower positions on both sides of the foamed resin block 1.

  The anchor member 10 is formed by bending a plate made of stainless steel or the like into a U-shape, and one bent portion is formed into a claw portion 11 which easily bites into the foamed resin block 1 and the other is folded The curved portion is formed on the flat portion 12. The anchor member 10 is attached such that the claw portion 11 bites into the side surface of the foamed resin block 1 so that the flat portion 12 is positioned on the outer surface 2. The anchor member 10 can be firmly coupled to the foamed resin block by the anchor effect of the claws 11.

  Then, a holding side support member 20 having a U-shaped cross section is attached to the flat portion 12 of one (right side shown) anchor member 10. In addition, on the flat portion 12 of the other (left side shown) anchor member 10 (FIG. 2), a fixing is formed so that a cross section for restricting the movement of the surface material (cement panel etc.) 50 is substantially Z-shaped. The side support member 25 is attached. The holding side support member 20 and the fixed side support member 25 are made of stainless steel or the like, and are provided at the opposite left and right positions of the foamed resin block 1 so as to extend in the longitudinal direction. Details will be described in FIG.

  Further, a weight receiving member 15 is attached to the lower central portion of the outer surface 2 of the foamed resin block 1. The weight receiving member 15 is formed by bending a plate made of stainless steel or the like into a substantially Z-shaped cross section, and one bent portion is formed into a claw portion 16 which easily bites into the foamed resin block 1, The bent portion is formed on the flat portion 17 for receiving the surface material 50. The weight receiving member 15 supports the surface member 50 from the lower side, and regulates the movement to the lower side. The weight receiving member 15 may have a function of supporting the weight of the surface member 50 by the holding side support member 20 and the fixed side support member 25. The anchor member 10, the holding side support member 20, the fixed side support member 25 and the weight receiving member 15 are not only formed of stainless steel but also formed of a hot dip galvanized steel plate, aluminum, other metals, etc. It is also good.

  Furthermore, on the outer surface 2 of the foamed resin block 1, backing rubbers 30 serving as holding members for holding the space 35 (FIG. 2) between the foamed resin block 1 and the surface material 50 are provided at a plurality of locations There is. The backing rubber 30 of this embodiment is formed of hard silicone rubber or the like, but may be formed of ethylene propylene rubber (EPDM), chloroprene rubber (CR), urethane rubber or the like. The backing rubber 30 forms a space 35 between the surface material 50 and the foamed resin block 1 for draining rainwater or the like which has entered the back surface side of the surface material 50. Moreover, the curvature to the back side of the surface material 50 can also be relieved by installing the backing rubber 30.

  Furthermore, the joint between the upper surface of the surface member 50 and the adjacent surface material (not shown) and the joint between the fixed side support member 25 and the holding side support member (not shown) are: Gaskets 40 and 41 for closing the joints are mounted (in the figure, the gaskets 40 and 41 are shown on the portion of the fixed side support member 25 and the upper portion of the surface material 50). The gasket 40 mounted between the upper portion of the surface material 50 and the adjacent member (other foamed resin block 1, adjacent concrete material, etc.) is formed of polyvinyl chloride (PVC), silicon, EPDM, CR, urethane, etc. It is formed by the body and has water permeability as described later.

  The surface material 50 is attached to the outer surface side of the foamed resin block 1 by the above-described configuration. The size of the surface material 50 is formed slightly smaller than the size of the outer surface 2 in anticipation of compressive creep deformation of the foamed resin block 1. The size in consideration of the compression creep deformation is to prevent adjacent surface materials 50 from contacting and breaking when the foamed resin block 1 contracts due to the compression creep deformation. It is also for preventing compression between the holding side support member 20 and the fixed side support member 25. In addition, as an adjacent thing which does not contact even if the foamed resin block 1 carries out compression creep deformation, other concrete materials etc. which form a civil engineering structure other than the adjacent surface material 50 are included. As the surface material 50, any material can be used as long as it can be used as a surface finish material of a civil engineering structure to be constructed by a lightweight filling method, and a concrete panel, a resin-based panel, a metal-based panel or the like can be used.

  As shown in FIG. 2, anchor members 10 are attached to opposite ends of the outer surface 2 of the foamed resin block 1. A holding side support member 20 bent to a substantially U-shaped cross section is attached to the right anchor member 10 shown by a screw 23. One of the substantially U-shaped cross sections of the holding side support member 20 is a fixing portion 21, and the other is a holding portion 22. The fixing portion 21 is formed to be longer than the holding portion 22, and a portion formed to be longer than the holding portion 22 is attached to the anchor member 10 with a screw 23. The holding portion 22 is formed to have a length capable of holding one end of the surface material 50. A stationary support member 25 bent into a substantially Z-shaped cross section is attached to the left anchor member 10 shown by a screw 28. In the stationary support member 25, one of the substantially Z-shaped cross sections is a fixing portion 26 and the other is a pressing portion 27. The fixing side support member 25 fixes the fixing portion 26 to the anchor member 10 with the screw 28 so that the pressing portion 27 presses the surface material 50 to restrict the movement.

  These support members 20 and 25 are for holding the surface member 50 on the outer surface 2 side of the foamed resin block 1, and the anchor members 10 are supported on the outer surface 2 of the foamed resin block 1. It is a mounting bracket for attaching. Thus, by the support members 20 and 25 attached to the anchor member 10, the surface material 50 can be attached to the outer surface 2 of the foamed resin block 1 without using a screw or the like.

  That is, according to the surface material attaching structure 60 configured as described above, the attachment procedure of the surface material 50 to the foamed resin block 1 is as follows. First, one side (right side) of the surface material 50 is engaged so as to be locked by the holding portion 22 of the holding side support member 20, and the surface material 50 is placed on the lower weight receiving member 15. Thereafter, the fixing portion 26 of the fixed support member 25 is attached to the anchor member 10 with the screw 28 in a state where the other (left) of the surface member 50 is locked by the pressing portion 27 of the fixed support member 25. Thereby, the work of attaching the surface material 50 to the foamed resin block 1 is completed. In addition, in this figure, the gasket 41 mounted between this stationary-side support member 25 and the holding-side support member 20 of the adjacent foamed resin block 1 is illustrated.

  The surface member 50 attached to the foamed resin block 1 in this manner is not attached by a screw or the like, but is held by both the support members 20 and 25 and is only placed on the weight receiving member 15. Therefore, no load is imposed on the surface material 50 with respect to vertical and horizontal displacement and compression creep of the foamed resin block 1, and the attachment portion is not affected. Further, since the surface material 50 is formed in a slightly smaller size in anticipation of the compressive deformation of the foamed resin block 1, there is no possibility that the surface materials 50 contact with each other and break due to the deformation of the foamed resin block 1. And since backing rubber 30 is installed in a plurality of places in foaming resin block 1, the curvature to the back side of surface material 50 can also be eased.

  As shown in FIG. 3, the gasket 40 attached to the joint between the upper portion of the surface member 50 and the adjacent surface member 50 has a water-permeable groove 42 communicating vertically in the side in contact with the foamed resin block 1. A plurality of bottles are provided. The gasket 40 of this embodiment is configured to have water permeability by providing a water permeation groove 42 in a molded PVC-based foam, but it has moisture permeability such as open cell foam plastic instead of the water permeation groove 42. A material or the like may be bonded to a non-permeable gasket.

  FIG. 4 is a longitudinal cross-sectional view showing a bonded portion in a state in which the foam resin blocks are stacked. As shown in the figure, a weight receiving member 15 is provided at the lower part of the foamed resin block 1, and the surface material 50 is placed on the flat portion 17 of the weight receiving member 15 to support the weight. Then, the gasket 40 is mounted between the facings 50 of the foam resin block 1 stacked. Since this gasket 40 is provided with the water permeable groove 42 on the surface in contact with the foamed resin block 1, even if rainwater 45 or the like enters the space 35 between the back surface side of the surface material 50 and the foamed resin block 1. The water can be drained downward through the water penetration groove 42 of the gasket 40. The rainwater 45 and the like are finally drained to the outside from between the lowermost surface member 50 and the foamed resin block 1.

  As shown in FIG. 5, as described above, the foamed resin blocks 1 attached with the surface material 50 are stacked to construct a civil engineering structure 70 such as a road. When the foamed resin block 1 is stacked, gaskets 40 and 41 are attached between the upper, lower, left, and right surface materials 50. The foamed resin block 1 to which the surface material 50 is attached is only the block on the wall surface side, and the other blocks are blocks to which the surface material 50 is not attached. The foamed resin blocks 1 to be stacked are joined together by a joining member (not shown) to form an integral structure.

  Further, in the civil engineering structure 70 constructed by mounting the gaskets 40 and 41 between the surface members 50 as described above, the joints (gaps) in the vertical direction of the surface members 50 are covered by mounting the gaskets 40. Since the screw 28 to which the fixed side support member 25 is attached is also covered with the gasket 41 and becomes the construction structure 61 which can not be seen from the outside, the civil engineering structure 70 having a beautiful appearance is obtained.

  And civil engineering structure 70 (a road etc.) formed by such a light weight filling method, even if a part of surface material 50 is damaged for some reason, the surface material 50 is carried out in the procedure opposite to the above-mentioned attachment procedure. It can be easily removed and replaced. That is, the gaskets 40 and 41 on the upper and lower sides of the damaged surface material 50 and the fixed support member 25 are removed, and then the screw 28 attaching the fixed support member 25 to the anchor member 10 is removed. It can be removed from the foamed resin block 1. Thereby, holding | maintenance of the surface material 50 remove | deviates, and only the surface material 50 of the foamed resin block 1 can be removed. And the attachment of the new surface material 50 can attach the new surface material 50 easily by performing in the attachment procedure mentioned above.

  As described above, according to the surface material mounting structure 60 and the construction structure 61 of the light weight filling method in the light weight filling method, the holding side support member 20 and the fixed side support member fixed to the anchor member 10 attached to the foamed resin block 1 Since the surface material 50 is attached to the surface 25, the surface material 50 is not burdened even by compressive creep deformation or displacement of the foamed resin block 1. That is, even if compression creep deformation occurs in the foamed resin block 1 and the support members 20 and 25 are displaced due to the deformation, the surface material 50 follows the displacement of the support members 20 and 25 and breakage of the surface material 50 or Deformation can be prevented.

  In addition, since the space 35 to be a drainage path is secured by the backing rubber 30 between the surface material 50 and the foam resin block 1, rainwater 45 or the like has entered between the surface material 50 and the foam resin block 1 Even in the space 35, it flows downward. And water can be drained downward from the upper side by the water penetration groove 42 provided in the gasket 40 between the facings 50. Therefore, rainwater and the like do not stay between the surface material 50 and the foamed resin block 1, and the decrease in durability of the surface material 50 and the foamed resin block 1 can be prevented.

  Furthermore, even if part of the surface member 50 is broken, it can be easily replaced individually by removing the gaskets 40 and 41 and the fixed side support member 25 as described above, and the weight receiving member 15 can be Since the weight is provided to support the weight of the surface material 50, the surface material 50 can be replaced with good workability.

  In the above embodiment, the surface material 50 is attached to the foamed resin block 1, and the foamed resin block 1 is stacked to construct the civil engineering structure 70. However, the foamed resin to which only the anchor member 10 is attached first The blocks 1 may be stacked, and then the surface material 50 may be attached to each foamed resin block 1 forming the wall surface, and the construction procedure of the civil engineering structure 70 in the lightweight filling method is not limited to the above embodiment. .

  Moreover, although the said embodiment demonstrated the foam resin block 1 in which the outer surface 2 was formed in laterally long rectangular shape to the example, it can apply similarly also to the foam resin block of another form, and the form of the foam resin block is said implementation. It is not limited to the form.

  Furthermore, the said embodiment shows an example, A various change in the range which does not impair the summary of this invention is possible, and this invention is not limited to the said embodiment.

  The surface material mounting structure according to the present invention can be used for mounting surface materials in various civil engineering structures constructed by a light-weight filling method.

1 Foamed resin block
Reference Signs List 2 outer surface 10 anchor member 11 claw portion 12 flat portion 15 weight receiving member 16 claw portion 17 flat portion 20 holding side support member 21 fixing portion 22 holding portion 23 screw 25 fixed side support member 26 fixing portion 27 pressing portion 28 screw 30 back Rubber pad 35 Space 40 Gasket 41 Gasket 42 Permeable groove 50 Surface material (Cement-based panels etc.)
60 surface material mounting structure 61 construction structure 70 civil engineering structure

Claims (6)

In a lightweight embankment method of building a civil engineering structure by stacking foamed resin blocks, a surface material mounting structure in which a surface material is attached to the outer surface of the foamed resin block,
Anchor members fixed to opposite ends of the outer surface of the foamed resin block;
A holding side support member attached to one of the anchor members to hold one end of the surface material;
A stationary support member attached to the other of the anchor members to restrict movement of the other end of the surface material;
And a weight receiving member for supporting the weight of the surface material,
The holding support member, said foam while being configured to cut at Attach to the anchor member fixed to the outer surface of the resin block,
The stationary support member is configured to be attachable to and removable from the anchor member fixed to the other of the outer surface of the foam resin block,
A surface material attaching structure in a light weight filling method, wherein the surface material is held between the holding side support member and a stationary side support member while being supported by the weight receiving member.   The surface material attaching structure in the light-weight-filling construction method according to claim 1, further comprising a holding member for securing a space on the back surface side of the surface material, between the surface material and the foamed resin block. The holding side support member has a U-shaped cross section,
The surface material attachment structure in the light-weight embankment construction method according to claim 1 or 2, wherein the fixed side support member has a Z-shaped cross section. With a gasket between the top of the facing and the adjacent one,
The surface material mounting structure in the lightweight filling method according to any one of claims 1 to 3, wherein the gasket has water permeability. It is a construction structure of the light weight filling method provided with the surface material mounting structure according to any one of claims 1 to 4,
A civil engineering structure is formed by stacking a plurality of foamed resin blocks in which the weight of the surface material is supported by a weight receiving member, one end of the surface material is held by a holding side support member, and the opposite end is fixed by a fixed side support member. Build
A water-permeable gasket is mounted between the upper surface of the stacked foam resin block and an adjacent surface material, and a gasket is mounted between the fixed-side support member and the adjacent holding-side support member. Construction of lightweight embankment method characterized by   The construction of a lightweight embankment construction method according to claim 5, wherein the water permeable gasket has a water permeable groove in a longitudinal direction on the surface in contact with the foamed resin block.

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