JP3470159B2 - Laminated structure of foamed synthetic resin block, lamination method, and foamed synthetic resin block - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated structure and a laminated method of a foamed synthetic resin block which can be used for embankment instead of earth and sand, and for embedding and backfilling a structure, and a laminated structure of these. The present invention relates to a foam synthetic resin block used in a laminating method.

[0002]

2. Description of the Related Art The EPS embankment method using expanded polystyrene blocks (EPS blocks) is widely used for embankments on soft ground or on sloping ground, embankments for mountain construction in gardens, embedding and backfilling underground structures, etc. ing. In the embankment by the EPS embankment method, drainage is not sufficient when it rains.
By providing a drainage layer such as crushed sand on the surface of the embankment by the EPS block and letting rainwater and the like pass downward inside the laminate of the EPS block, the drainage layer is drained in the lateral direction, so that The EPS block was prevented from dipping. If such a measure is not taken, the EPS block is likely to be immersed in rainwater or the like, but at that time, the EPS block has a very small specific gravity.
There is a problem that the block receives a large buoyancy force and the whole embankment is lifted.

Therefore, for the purpose of imparting a drainage function in the downward direction of the laminated body of the EPS blocks, conventionally, as shown in FIG. 20, a plurality of elongated drainages extending in the vertical and horizontal directions on the surface of the EPS block 1 are conventionally provided. Groove 1a is formed, EPS
It has been proposed to form a vertical drainage groove 1b communicating with the drainage groove 1a on the side surface of the block 1, and further to form a drainage groove communicating with the drainage groove 1b on the back surface (not shown) of the EPS block 1. (See Japanese Utility Model Laid-Open No. 6-4145). Further, although not shown, a radius of about 3 cm is attached to the ridgeline between the surface and the side surface of the EPS block, between adjacent side surfaces, and a gap is provided between the EPS block and the adjacent EPS block at the time of stacking at this position of the radius. It has also been proposed to use such a gap as a drainage passage (see Japanese Utility Model Laid-Open No. 4-126939).

[0004]

However, when the drainage grooves 1a, 1b are provided in the EPS block 1 or when the ridgeline of the EPS block is rounded to form a drainage passage, the drainage grooves 1a, 1b and Since the cross-sectional area of the drainage passage due to R is relatively small and the drainage passage is bent and communicates with each other, the required drainage volume may exceed the actual drainage capacity when the drainage volume is large, such as during heavy rain. It was

That is, considering the drainage path of the EPS block 1 of FIG. 20, the water in the drainage groove 1a on the surface flows down along the drainage groove 1b on the side surface, and this flows down to the drainage grooves 1a, 1b of the EPS block 1 in the lower layer. After that, it will flow into the drainage grooves 1a and 1b of the lower EPS block 1 in the same manner. In this case, since the drainage path has a complicated shape in which the drainage path is alternately bent in the horizontal direction and the vertical direction, not only the drainage efficiency is lowered but also when the EPS blocks 1 are stacked, two layers of the EPS blocks 1 vertically adjacent to each other are stacked.
If there is a positional deviation between the drainage grooves 1a and 1b of the vertically adjacent two-layer EPS block 1, the drainage grooves 1a and 1b are not communicated at all or only partially communicated with each other, so that drainage becomes impossible. Or, there is a problem that only extremely low drainage efficiency can be obtained. Such a problem can occur similarly in the conventional example in which the ridgeline of the EPS block is rounded to form a drainage passage.

[0006]

The present invention has solved the above-mentioned problems and has a high drainage efficiency and is vertically adjacent when stacking.
Provided is a foamed synthetic resin block, which does not impair the drainage function even if a slight displacement occurs between the foamed synthetic resin blocks of the layer, a laminated structure, a laminating method, and a laminated synthetic resin block suitable for use in the laminated structure or the laminating method. The purpose is to do. Therefore, in the foamed synthetic resin block laminated structure according to claim 1, a plurality of layers formed by laying out and arranging a plurality of rectangular parallelepiped foamed synthetic resin blocks in which at least one side surface is provided with a recess extending from the front surface to the back surface are stacked. By this, the concave portions of the foamed synthetic resin block of each layer form a passage that linearly communicates in the vertical direction .

A foamed synthetic resin block laminated structure according to a second aspect is the laminated structure according to the first aspect, in which a plurality of foamed synthetic resin blocks of each layer are aligned in the direction of the long sides of the front surface and the back surface and are vertically adjacent to each other. It is characterized in that the directions of the long sides of the two-layer foam synthetic resin block are orthogonal to each other.

The foamed synthetic resin block laminated structure according to claim 3 is characterized in that, in the laminated structure according to claim 1 or 2, the concave portion of the foamed synthetic resin block of each layer has a maximum width dimension larger than a maximum depth dimension. To do.

The foamed synthetic resin block laminated structure according to claim 4 is characterized in that, in the laminated structure according to any one of claims 1 to 3, the foamed synthetic resin block of each layer is made of expanded polystyrene.

In the method for laminating a foamed synthetic resin block according to a fifth aspect of the present invention, a plurality of rectangular parallelepiped foamed synthetic resin blocks each having a concave portion extending from the front surface to the back surface are laid on at least one side surface to form a layer. By stacking the layers of the synthetic resin block in a plurality of layers so that the recesses of the two adjacent foam synthetic resin blocks that are vertically adjacent to each other communicate in a straight line in the vertical direction , the plurality of layers are connected in a straight line in the vertical direction. It is characterized in that a passage is formed.

A method for laminating a foamed synthetic resin block according to a sixth aspect is the method for laminating a foamed synthetic resin block according to the fifth aspect, in which a plurality of the foamed synthetic resin blocks of each layer are laid side by side in the direction of the long sides of the front surface and the back surface, The two sides of the foamed synthetic resin block adjacent to each other are laminated in a plurality of layers with the directions of the long sides thereof being orthogonal to each other.

The foamed synthetic resin block according to claim 7 has each layer
The direction of the long side of the front and back of the foamed synthetic resin block of
Aligned and foamed synthetic resin block in two layers vertically adjacent
Directions of the long sides of the hook are orthogonal to each other and vertically adjacent to each other.
The two layers of foamed synthetic resin blocks have the recesses next to each other.
It is a foamed synthetic resin block that is laminated so that it touches
The recess is characterized in that at least one side surface of the foamed synthetic resin block has a maximum width dimension larger than a maximum depth dimension from the front surface to the back surface of the foamed synthetic resin block.

According to a seventh aspect of the present invention, in the foamed synthetic resin block of the seventh aspect, the short side surfaces of the front and back surfaces of the foamed synthetic resin block, which correspond to each other, are substantially aligned in the short side direction. The recesses are provided one by one so that the center position is the center of the recess in the width direction, and further, on the corresponding long-side side surfaces of the front surface and the back surface, from the two ridge lines on the short-side side surfaces, respectively. 1 in the long side dimension in the long side direction
It is characterized in that each of the recesses is provided at two places so that a position apart by / 4 becomes the center of the recess in the width direction. In this case, the dimensional ratio between the long side and the short side is preferably 2 to 1.

The foamed synthetic resin block according to claim 9 has each layer
The direction of the long side of the front and back of the foamed synthetic resin block of
Aligned and foamed synthetic resin block in two layers vertically adjacent
Directions of the long sides of the hook are orthogonal to each other and vertically adjacent to each other.
The two layers of foamed synthetic resin blocks have the recesses next to each other.
It is a foamed synthetic resin block that is laminated so that it touches
On at least two side surfaces of the foamed synthetic resin block from the front surface to the back surface of the foamed synthetic resin block.
As described above, the recess is formed, and the connecting groove that connects the recesses of the two side surfaces is formed on the front surface and / or the back surface.

The foamed synthetic resin block according to claim 10, each
Direction of the long sides of the front and back surfaces of the foamed synthetic resin block of the layer
And the two layers that are vertically adjacent to each other
The directions of the long sides of the lock are orthogonal to each other
Recesses of two layers of foamed synthetic resin blocks contacting each other, through holes
Stacked so that each other or the recess and the through hole communicate vertically
The foamed synthetic resin block is formed by forming the recesses on at least two side surfaces of the foamed synthetic resin block from the front surface to the back surface of the foam synthetic resin block, and connecting the recessed portions on the two side surfaces. A connection groove is formed on the front surface and / or the back surface, and the connection groove is communicated with the through hole so as to penetrate from the front surface to the back surface of the foamed synthetic resin block.

According to a tenth aspect of the present invention, in the foamed synthetic resin block according to the tenth aspect, the openings of the front surface and the back surface of the through hole are located near the center of the front surface and the back surface. is there.

The foamed synthetic resin block according to a twelfth aspect is the foam synthetic resin block according to the tenth or eleventh aspect, in which a water guiding recess portion connected to the through hole is provided in the vicinity of the opening of the front surface and / or the back surface of the through hole. It is characterized by that.

A foam synthetic resin block according to a thirteenth aspect of the present invention is the foam synthetic resin block according to any one of the ninth to twelfth aspects, wherein the connecting groove connects the concave portions of the side surfaces of the foam synthetic resin block adjacent and / or facing each other at the shortest distance. It is characterized by doing.

The foamed synthetic resin block according to claim 14 is characterized in that, in the structure according to any one of claims 9 to 13, the recess is a wide recess having a maximum width dimension larger than a maximum depth dimension. is there.

[0020]

According to the laminated structure of the foamed synthetic resin block of claim 1, a plurality of rectangular parallelepiped foamed synthetic resin blocks each having a concave portion extending from the front surface to the back surface are formed on at least one side surface to form a layer. By stacking a plurality of layers, the recesses of the foamed synthetic resin blocks of the respective layers form a passage that communicates with each other in a substantially straight line in the vertical direction. Will be drained smoothly downward.

The laminated structure of the foamed synthetic resin block according to a second aspect is the laminated structure of the first aspect, in which the directions of the long sides of the front and back surfaces of the foamed synthetic resin blocks of the respective layers are aligned and are vertically adjacent to each other. Since the long side directions of the foamed synthetic resin blocks of the layers are orthogonal to each other, the two layers of the foamed synthetic resin blocks that are vertically adjacent to each other are laminated so that the joints are not aligned with each other, which results in a laminated structure. The strength as a whole is improved, and the problem that the foamed synthetic resin block of each layer is displaced due to vibration or the like is also reduced.

According to the laminated structure of the foamed synthetic resin block of claim 3, in the laminated structure of claim 1 or 2, the recess of the foamed synthetic resin block of each layer has a maximum width dimension larger than a maximum depth dimension. Therefore, in particular, the laminated structure is
When the directions of the long sides of the foamed synthetic resin blocks of the respective layers are aligned, and two layers vertically adjacent to each other are laminated so that the directions of the long sides of the foamed synthetic resin blocks are orthogonal to each other,
The recesses of the two layers of foam synthetic resin blocks adjacent to each other vertically communicate with each other while intersecting with each other in a cross shape in a plane parallel to the front surface and the back surface of the foam synthetic resin block. In this case, even if there is a slight misalignment between the two vertically adjacent synthetic foam blocks during construction, the concave portions of the two vertically adjacent synthetic foam blocks have a wide width direction. Therefore, it is possible to communicate.

In the laminated structure of the foamed synthetic resin block of claim 4, since the foamed synthetic resin block of each layer is made of expanded polystyrene, the laminated structure is excellent in lightness, water resistance, durability, economy and the like. be able to.

According to a fifth aspect of the present invention, there is provided a method for laminating a foamed synthetic resin block, wherein a plurality of rectangular parallelepiped foamed synthetic resin blocks each having a concave portion extending from the front surface to the back surface are formed on at least one side surface to form a layer. Since the layers of the foamed synthetic resin block are laminated in a plurality of layers so that the recesses of the two adjacent foamed synthetic resin blocks vertically communicate with each other, the plurality of layers are formed in a substantially straight line in the vertical direction. A communicating passage is formed, and rainwater or the like can be smoothly drained from the upper side to the lower side in the laminated structure of a plurality of layers through the passage.

According to a sixth aspect of the present invention, there is provided a method for laminating foamed synthetic resin blocks according to the fifth aspect, wherein the foamed synthetic resin blocks of the respective layers are laid side by side in the direction of the long sides of the front surface and the back surface, and are vertically adjacent. Since the two sides of the foamed synthetic resin block are laminated with their long sides orthogonal to each other, the two layers of foamed synthetic resin blocks that are vertically adjacent to each other are
It is possible to stack so that the joints are not aligned with each other, which improves the strength of the laminated structure as a whole and causes the problem that the foamed synthetic resin blocks of each layer are misaligned in the vertical, horizontal, etc. directions due to vibration, etc. Can be reduced.

In the foamed synthetic resin block of claim 7, since the recess extending from the front surface to the back surface of the foamed synthetic resin block is formed on at least one side surface, the recessed portion allows rainwater and the like to flow along the side surface of the foamed synthetic resin block. A drainage passage that guides from above to below is provided, and rainwater and the like can be drained smoothly.

When laminating the foamed synthetic resin blocks in a plurality of layers for embankment or the like, the directions of the long sides of the front and back surfaces of the foamed synthetic resin blocks of each layer are aligned, and foaming is performed in two layers vertically adjacent to each other. When the synthetic resin blocks are laminated such that the long sides thereof are orthogonal to each other and the recesses of two layers of foam synthetic resin blocks vertically adjacent to each other are vertically communicated with each other, the recesses have a maximum depth dimension. Since it is a wide recess having a large maximum width dimension, the recesses of the two layers of foam synthetic resin blocks adjacent to each other in the vertical direction communicate with each other while intersecting each other in a cross shape. In this case, even if there is a slight misalignment between the two vertically adjacent foam synthetic resin blocks, since the recesses in each layer have a wide width direction,
It becomes possible to communicate.

According to a seventh aspect of the present invention, in the foamed synthetic resin block according to the seventh aspect, one recess is provided on each side face of the foamed synthetic resin block corresponding to the corresponding short side, and the widthwise direction of the recess is determined. The center is located approximately at the center of the short side surface in the short side direction, and two recesses are provided on each of the corresponding long side surfaces of the foamed synthetic resin block, and the widths of these recesses are set. Since the center of the direction is made to coincide with the position distant from the two ridges between the two short side surfaces adjacent to the long side surface in the long side direction by ¼ of the long side dimension, When laminating the foamed synthetic resin blocks in a plurality of layers for embankment or the like, the long sides of the foamed synthetic resin blocks of the respective layers are aligned in the direction of the long sides, and the length of the foamed synthetic resin blocks is vertically adjacent to each other. When the foamed synthetic resin blocks of two layers which are vertically adjacent to each other and are vertically adjacent to each other are stacked so that the recesses communicate with each other, the recessed portions of all the foamed synthetic resin blocks of each layer are formed into upper and lower layers. It becomes possible to communicate with the recesses of the foamed synthetic resin block. In this case, since all the recesses of each foamed synthetic resin block can be utilized as a passage for drainage, the drainage function of the recesses becomes extremely high.

The foamed synthetic resin block of claim 9 is one in which at least two side surfaces are formed with recesses extending from the front surface to the back surface, and the recesses allow rainwater, groundwater, etc. to fall from above along the foamed synthetic resin block. To form a passage for drainage leading to. If the recesses on the side surfaces of the two layers of foam synthetic resin blocks that are vertically adjacent to each other are positioned and stacked so that they communicate with each other in the vertical direction, a passage through which the recesses of the multiple layers of foam synthetic resin blocks communicate with each other in the vertical direction is created. However, vertical drainage is performed in the laminated structure through this passage.
In this case, since the passage extends in a substantially straight line in the vertical direction, drainage in the laminated structure is smoothly performed.

Further, since the connecting groove for connecting the recesses on the two side surfaces of the foamed synthetic resin block is formed on the front surface and / or the back surface of the foamed synthetic resin block, a large amount of rainwater can be formed in any of the recesses in a short time. Etc. flow into the recess and smooth drainage is no longer possible, or when clogging occurs, some or all of the rainwater, etc. flowing into the recess may flow to the other recess through the connecting groove. , Drained.

According to the foam synthetic resin block of claim 10, in addition to the structure of claim 9, a through hole penetrating from the front surface to the back surface is provided in the foam synthetic resin block, and the connecting groove communicates with the through hole. As a result, at least a part of rainwater or the like flowing from one of the recesses to the other recess via the connecting groove can be guided from the front surface side to the back surface side of the foamed synthetic resin block through the through hole. The drainage from the bottom to the bottom will be performed more smoothly. In this case, when stacking the foamed synthetic resin blocks in a plurality of layers,
If the through holes of the foamed synthetic resin block of the layers are made to communicate with each other in the vertical direction, the through holes also form a passage that communicates the laminated structure of a plurality of layers in the vertical direction, and the drainage in the laminated structure is further improved. It will be carried out more smoothly. Further, instead of communicating through holes of two layers that are vertically adjacent to each other, through holes of the upper layer and recesses of the lower layer in the upper and lower two layers are communicated with each other, or recesses of the upper layer and through holes of the lower layer are communicated with each other. Also, the through hole and the concave portion form a passage that vertically connects the multilayer body of the plurality of layers.

In the foamed synthetic resin block of claim 11, since the opening of the front surface or the back surface of the foamed synthetic resin block of the through hole is located near the center of the front surface or the back surface, the through hole should be provided. It is preferable because the decrease in the strength of the foamed synthetic resin block due to the above can be suppressed to a minimum. When the through hole is provided near the side surface of the foamed synthetic resin block, particularly near the recess, the strength of the foamed synthetic resin block may decrease, so it is desirable to provide the through hole near the center.

When the foamed synthetic resin blocks are regularly laid out and laminated in a plurality of layers, the through holes are opened in the vicinity of the center of the front surface and the back surface. It is convenient for connecting the two in the vertical direction.

A foamed synthetic resin block according to a twelfth aspect of the present invention is such that, around the opening of the front surface and / or the back surface of the through hole,
Since the water guiding recess connected to the through hole is provided, rainwater flowing in the connecting groove can smoothly flow into the through hole via the water guiding recess, and the drainage function of the through hole can be further improved. it can. Further, when the foam synthetic resin block is laminated in a plurality of layers and the through holes of the vertically adjacent two layers are communicated with each other, a slight misalignment occurs between the vertically adjacent two layers of the synthetic resin blocks during the laminating operation. Even if the occurrence occurs, rainwater flowing down from the through hole of the foam synthetic resin block of the upper layer flows into the through hole of the foam synthetic resin block of the lower layer through the water guiding recess, so the flow of drainage is blocked. Never. When the through hole of the foam synthetic resin block of the upper layer and the recess of the foam synthetic resin block of the lower layer communicate with each other, or when the recess of the foam synthetic resin block of the upper layer communicates with the through hole of the foam synthetic resin block of the lower layer Also,
Since the through hole has the water guiding depression, it is unlikely that the flow of the drainage is interrupted due to a slight displacement between the upper and lower layers of the foamed synthetic resin block.

In the foamed synthetic resin block of the thirteenth aspect, since the connecting groove connects the concave portions of the adjacent and / or opposite side surfaces of the foamed synthetic resin block at the shortest distance, it moves smoothly in the shortest time. It is possible to further improve the drainage function when excess rainwater or the like flows into any of the recesses.

In the foamed synthetic resin block of claim 14, since the recess is a wide recess having a maximum width dimension larger than the maximum depth dimension, a plurality of foamed synthetic resin blocks of each layer are formed on the front and back sides of the long side. While laying them in the same direction,
Two vertically adjacent two layers of foamed synthetic resin blocks are laminated so that the long sides thereof are orthogonal to each other.
When the wide concave portions of the foamed synthetic resin block of one layer are vertically communicated with each other, the wide concave portions of the two adjacent layers are communicated with each other by intersecting each other in a substantially cross shape. Even if there is a slight misalignment between the blocks, the wide recesses of the two layers are only slightly displaced in the width direction,
The wide concave portion does not block the passage.

[0037]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the foamed synthetic resin block 11 is formed of a foamed synthetic resin into a rectangular parallelepiped shape, and has a front surface 12, a back surface 13, and long sides 12 a, 13 a of the front surface 12 and the back surface 13.
Two long side surfaces 14 along the direction of, and the short side 12
It has two short side surfaces 15 along the directions b and 13b. As the foam synthetic resin, various kinds of foam polystyrene resin such as foam polystyrene, foam polyolefin resin such as foam polyethylene and foam polypropylene, foam polyvinyl chloride, foam phenol resin, foam polyamide, foam polyurethane and the like can be used. , Lightweight,
It is preferable to use expanded polystyrene in view of properties such as water resistance and durability and cost. As a molding method,
Although various molding methods such as in-mold molding and extrusion molding can be adopted, it is usually preferable to use the in-mold molding method. In this case, for example, a wide concave portion 16, which will be described later, is formed inside the conventional mold.
If a plate material corresponding to 17 or the like is attached, the conventional mold can be used as it is.

In the foamed synthetic resin block 11, the dimensional ratio of the long sides 12a, 13a and the short sides 12b, 13b is usually 2 to 1, and the two long side surfaces 14 have, for example, Two wide recesses 16 (recesses) are provided, and one wide recess 17 is provided on each of the two short side surfaces 15.
(Recesses) are formed respectively. Each wide recess 16,
As an example, 17 has a rectangular cross-sectional shape in a plane parallel to the front surface 12 and the back surface 13, and extends from the front surface 12 to the back surface 13.

The two wide recesses 16 on each of the long side surfaces 14 in FIG. 1 define the long side surface 14 as the long sides 12a and 13a.
a dividing line C-C connecting the midpoints C of a with the long sides 12a, 1
3a, the long side 12a of each region bisected in the direction of 3a,
It is located at the center in the 13a direction. That is, the center of the wide concave portion 16 in the long side 12a, 13a direction is the long side surface 1
4 and two ridgelines R between two adjacent short side surfaces 15
Is located at a distance of 1/4 of the dimension of the long sides 12a and 13a in the direction of the long sides 12a and 13a. Also, the short side surface 15
The wide recess 17 is located at the center in the direction of the short sides 12b and 13b.

The long side 12a of the foamed synthetic resin block 11,
The dimension in the 13a direction is preferably 1000 to 3000 m
m, the dimension in the short side 12b, 13b direction is preferably 5
About 00 to 1500 mm, thickness, that is, surface 12
The height of the side surfaces 14 and 15 from the bottom surface to the back surface 13 is preferably about 100 to 1000 mm. Also, the long side surface 1
4 and the width W of the wide concave portions 16 and 17 of the short side surface 15 are 30 to 2500 mm or 30 to 1400, respectively.
However, it is preferable that they are equal to each other, and the depth F of the cut is preferably 2 to 40 mm. In consideration of the use of the foamed synthetic resin block 11, the convenience and efficiency of the laminating work, the molding workability, etc., the size of the foamed synthetic resin block 11 is appropriately determined within the above range, and the wide concave portion 16, The width W and depth F dimensions of 17 are appropriately determined according to the dimensions of the foam synthetic resin block 11, the required drainage efficiency, and the like.

As a preferred standard example, the dimension of the synthetic resin block 11 in the long side 12a, 13a direction is 200.
0 mm, short side 12b, the dimension of 13b direction is 1000m
The size of m and the thickness of 500 mm are often used. Also, as a preferable example, the wide recesses 16 and 17 are provided.
An example in which the width W is 400 mm and the depth F is 10 mm can be given, but it is not limited to these dimensions. When there are a plurality of wide recesses 16 formed in one foamed synthetic resin block 11, if the dimensions are the same, all the wide recesses 16 in each layer are all in the wide recesses 16 in the vertically adjacent layers. Since it is possible to communicate with each other and only one type of foam synthetic resin block 11 is required, there is an advantage that molding processing is easy, but the invention is not limited to this.

When the foamed synthetic resin blocks 11 are laminated in a plurality of layers, as shown by solid lines in FIG. 2, first, the plurality of foamed synthetic resin blocks 11 are arranged with the long sides 12a and 13a in the vertical direction in FIG. The short sides 12b and 13b are made to face each other and laid out in one row in a close contact state, and the first side I is laid in a plurality of rows in a close contact state. In this case, in the two adjacent rows of the first layer I, the foamed synthetic resin blocks 11 are laid so that they are displaced from each other by 1/2 of the dimension of the long sides 12a and 13a. As a result, the wide concave portions 1 of the foamed synthetic resin blocks 11 that are laterally adjacent to each other are formed.
The six holes face each other to form the joint hole G.

That is, as described above, the two wide recesses 16 on the long side surface 14 of the foamed synthetic resin block 11 divide the long side surface 14 into two equal parts in the direction of the long sides 12a and 13a. Since the region is located at the center in the direction of the long sides 12a and 13a, even if the foam synthetic resin block 11 is displaced by ½ of the dimension of the long sides 12a and 13a in the two adjacent columns, the adjacent two columns are not separated. Foam synthetic resin block 11
The positions of the wide concave portions 16 of are matched. Further, the wide concave portions 17 on the short sides 12b and 13b of the foamed synthetic resin blocks 11 adjacent in the vertical direction face each other to form the joint hole H.

Next, as shown by phantom lines on the first layer I, a plurality of foam synthetic resin blocks 11 of the second layer II are arranged in each row, and long sides 12a, 13a are in a plurality of rows and short sides 12b are arranged in a plurality of rows. 1
3b are laid together in close contact with each other. In this case, the long side 12 of each foam synthetic resin block 11 of the second layer II.
The a and 13a directions are orthogonal to the long sides 12a and 13a of the first layer I and are the left and right directions in FIG. Also in the second layer II, the adjacent two rows of the foam synthetic resin blocks 11 are laid so as to be offset from each other by ½ of the dimension of the long side 11a. As a result, the joint holes G and H formed by the foamed synthetic resin block 11 of the second layer II are connected so as to communicate with each other in an intersecting manner on the joint holes G and H of the foamed synthetic resin block 11 of the first layer I. The foamed synthetic resin block 11 will be laid.

In order to intersect the joint holes G and the joint holes H of the first layer I and the second layer II with each other, the short side 12b of the foamed synthetic resin block 11 of the second layer II shown by a phantom line in FIG. 1
3b is a foam synthetic resin block 11 of the first layer shown by a solid line
2 is displaced from the long sides 12a, 13a in the left-right direction of FIG. 2 by 1/4 of the dimension of the long sides 12a, 13a, and the long side 1 of the second-layer expanded synthetic resin block 11 shown by a phantom line in FIG.
2a and 13a are long sides 12a and 1 with respect to the short sides 12b and 13b of the foamed synthetic resin block 11 of the first layer I shown by the solid line.
The foamed synthetic resin block 11 of the second layer II is laid so as to be displaced in the vertical direction in FIG. 2 by 1/4 of the dimension of 3a.
As a result, all the bonding holes G and H of the second layer II can be communicated with the bonding holes G and H of the first layer in an intersecting manner.

Hereinafter, each odd layer of the third layer and above has a long side 12
The directions of a and 13a may be the vertical direction of FIG. 2 and may be laid so as to vertically overlap each foamed synthetic resin block 11 of the first layer I. Similarly, if each even layer of the fourth layer or more is laid so as to vertically overlap each foamed synthetic resin block 11 of the second layer II with the long sides 12a and 13a in the horizontal direction of FIG. good. In this way, the foamed synthetic resin block 11 forms a desired multi-layered laminated structure.

The first layer I to the fourth layer IV of the laminated body are shown in FIG.
As shown in FIG. 3, the joint holes G and H of the layers I to IV are sequentially communicated with each other in a vertically intersecting manner to form a drainage passage that vertically penetrates all the layers of the laminate. Therefore, when embankment or the like is performed by the laminated body, rainwater or the like is smoothly drained from the upper side to the lower side as indicated by the arrow A through the drainage passage, and the raised state of the laminated body is less likely to occur. Note that FIG.
The middle X indicates the dimension in the direction of the short sides 12b and 13b of one foam synthetic resin block 11 of the first layer I and the third layer III, and Y
Shows the dimension in the direction of the long sides 12a and 13a of one foam synthetic resin block 11 of the second layer II and the fourth layer IV.

Since the joint holes G and H formed by joining the two wide concave portions 16 and 17 have a wide width of, for example, about 400 mm, when the foam synthetic resin block 11 is laminated, it may be slightly formed on the foam synthetic resin block 11. Even if the positional deviation occurs, the communication relationship between the joining holes G and H between the two layers vertically adjacent to each other is maintained, and the drainage passage is not blocked.

That is, as described above, the wide concave portion 16,
Assuming that the width W of 17 is 400 mm and the depth of cut F is 10 mm, the width W of the joining holes G and H is 400 mm and the depth dimension J is 20 mm, as illustrated in FIG. Becomes FIG. 5 shows only the bonding holes G1 to G4 at the corresponding positions of the first layer I to the fourth layer IV of the laminated body, closer to the actual scale. Originally, the bonding holes G1 and G3 of the first layer I and the third layer III overlap each other, and the bonding holes G of the second layer II and the fourth layer IV are formed.
2 and G4 should also overlap each other, but due to the displacement of the foamed synthetic resin block 11 during lamination, G
FIG. 5 shows a state in which there is a positional deviation between 1 and G3 and between G2 and G4.

Here, looking at the drainage route from the fourth layer IV to the first layer I, the drainage in the joint hole G4 of the fourth layer IV is the third layer.
From the crossing region K1 of the joint hole G3 of III to the joint hole G3
In the following, the drainage in the joint hole G3 of the third layer III flows down into the joint hole G2 from the intersection region K2 with the joint hole G2 of the second layer II, and the drainage in the joint hole G2 is From the intersection region K3 of the first layer I with the bonding hole G1, it flows into the bonding hole G1.
Even if the joint holes G and H are discharged to the outside from the joint hole G1 of the first layer I, which is the lowermost layer, and the joint holes G and H are slightly displaced due to the displacement of the foamed synthetic resin block 11 at the time of stacking, drainage is performed without any problem. . The width W of the joint holes G and H is 400 mm
In that case, a maximum positional deviation of about 380 mm is allowed. If the depth dimension J of the joint hole G is 20 mm, the cross-sectional area of each of the intersecting regions K1, K2, K3 is 20 ×.
Since 20 = 400 mm ² (4 cm ² ), a sufficiently wide intersection area can be secured between the two vertically adjacent layers, so that drainage can be smoothly transferred between the two vertically adjacent layers.

That is, the cross-sectional area of the passages that vertically communicate with each other in the laminated structure formed by laminating a plurality of foam synthetic resin blocks 11 is the smallest in the intersecting region of the joining grooves G or H between two vertically adjacent layers. However, if the cross-sectional area of this intersection area, that is, the effective drainage cross-sectional area is 4 cm ² as described above,
Since each joint groove G and H is formed by two foam synthetic resin blocks 11 that are adjacent to each other in the horizontal or vertical direction, the effective drainage cross-sectional area of one joint groove G or H per one foam synthetic resin block 11. Is 2 cm ² . Since one foam synthetic resin block 11 forms six joint grooves G or H between the adjacent foam synthetic resin blocks 11 in the layer, it has a total effective drainage cross-sectional area of 12 cm ^2. Become.

Long side 12 of the foamed synthetic resin block 11
a, 13a direction dimension is 2000 mm (2 m), short side 12
If the b and 13b direction dimensions are 1000 mm (1 m),
The front surface 12 and the back surface 13 of the foamed synthetic resin block 11 are flat.
The inner cross-sectional area is 2m ²And the effective drainage interruption
Area is 2m²12 cm², That is, 6 cm²/ M
²Becomes On the other hand, according to trial calculations, foamed synthetic resin blocks
Necessary to give a sufficient drainage function to the laminated structure of 11
Effective drainage cross section is 1 cm²/ M²Is. By this
It can be seen that the drainage function is sufficient.

As a method for laminating the foamed synthetic resin block 11, the foamed synthetic resin block 1 is formed in two adjacent rows of each layer.
Instead of shifting 1 by 1/2 of the dimension of the long sides 12a and 13a, as shown in FIG. 6, the short sides 12b and 13b of the foamed synthetic resin block 11 may be laid so as to be aligned. In this case, the end positions of the foam synthetic resin blocks 11 in each row can be aligned at the end positions of the layers laminated in the plurality of layers, that is, at the laying start positions of the layers.
The foamed synthetic resin block 11 can be easily positioned. In this case, the joining holes G on the long side surface 14 can be made to intersect all in two vertically adjacent layers, but the joining holes H on the short side surface 15 can only partially intersect. become. However, as is clear from the above calculation, a sufficient drainage effect can be obtained by the drainage passage formed by the joint hole G and a part of the joint holes H.

In the above embodiment, the foamed synthetic resin block 1
Although the concave portion on the side surface of 1 is formed as the wide concave portions 16 and 17 having the width dimension W larger than the depth dimension F, the concave portions on the side surfaces 14 and 15 of the foamed synthetic resin block 11 do not necessarily have to be wide. For example, the recess may be a narrow recess having a depth dimension larger than the width dimension, or a recess having a depth dimension and a width dimension substantially equal to each other. However, if the concave portions are wide concave portions 16 and 17,
As described above, when the foamed synthetic resin block 11 is laminated in a plurality of layers so that the directions of the long sides 12a and 13a of the vertically adjacent two layers are perpendicular to each other, the foamed synthetic resin block 11 is slightly displaced. Even in the case of occurrence of the above, there is an advantage that the two vertically wide adjacent recessed portions 16 and 17 and the joining holes G and H are easily communicated with each other.

Side surfaces 14 and 1 of the foamed synthetic resin block 11
The sectional shape of the concave portion 5 is not limited to a rectangular shape, but may be a semi-elliptical shape, a circular shape, a parabolic shape, or any other shape, as long as it can form a space for drainage. The maximum width dimension of the recess when the cross-sectional shape is other than rectangular is the maximum width of the recess cut out in the side surface 14 or 15, and
The maximum depth of the recess is the long side 12 of the side surface 14 or 15.
a, 13a or the maximum depth of cut from the short sides 12b, 13b.

Side surfaces 14 and 1 of the foamed synthetic resin block 11
The number of the concave portions provided in 5 is not particularly limited. For example, when the concave portions are wide concave portions 16 and 17, as shown in FIG. 16, one wide concave portion 17 is formed only on one short side surface 15 or, as shown in FIG.
Two wide concave portions 16 are formed on each of the two long side surfaces 14 so that no concave portion is formed on the short side surface 15, and further, although not shown, only one side surface 14 or 15 is formed. Alternatively, only one wide recess may be formed. When the foamed synthetic resin block 11 of FIG. 7 is stacked in the same direction in each layer by the same stacking method as in FIG. 2, the wide concave portions 16 and 17 of the foamed synthetic resin block 11 adjacent in the horizontal and vertical directions face each other. Although the joint holes G and H are not formed by this method, in this case also, the two vertically adjacent wide recesses 16 and 17 can be communicated with each other to form a sufficient drainage passage.

When the number of recesses of the foamed synthetic resin block 11 is large, it is easy to increase the number of positions where the recesses communicate with each other between two vertically adjacent layers when the foamed synthetic resin block 11 is laminated in a plurality of layers. It is needless to say that it is easy to secure the drainage amount, but even when the number of recesses is small as in the example of FIG. 7, the depth of each recess can be increased if necessary to increase the depth of each recess. A sufficient drainage function can be secured by increasing the cross-sectional area.

In the above-mentioned embodiment, the recesses such as the wide recesses 16 and 17 are formed on the side surface 14 or 15 of the foam synthetic resin block 11, but as shown in FIG. 9, the side surfaces 14 and 15 of the foam synthetic resin block 11 are formed. In the vicinity, front surface 12 to back surface 1
Alternatively, wide holes 18 and 19 penetrating the hole 3 may be formed. Also in this case, if the widths of the holes 18 and 19 are made sufficiently large, when the foamed synthetic resin block 11 is laminated in a plurality of layers by, for example, a laminating method similar to that of FIG. The holes 18 and the holes 19 of the layers communicate with each other in an intersecting manner to form a drainage passage that vertically penetrates the plurality of layers.

In the above embodiment, the foamed synthetic resin block 1
Although the dimensional ratio of the long sides 12a, 13a to the short sides 12b, 13b of 1 is set to 2 to 1, the long sides 12a, 13a to the short sides 12b,
The dimensional ratio of 13b may be an integer ratio such as 3: 1 or 4: 1. For example, long side 12a, 13a vs. short side 12b,
When the dimensional ratio of 13b is 3 to 1, as shown in FIG. 10, three wide concave portions 16 are provided on each long side surface 14, and each wide concave portion 16 is formed on the long side surface 14 in the long side 11a direction. The wide concave portion 17 may be provided at the center of the short side surface 15 while being located at the center in the direction of the long sides 12a and 13a of each of the three regions divided into three.

Also in this case, the widths W of the three wide recesses 16 on the long side surface 14 and the width W of the wide recesses 17 on the short side surface 15 are made sufficiently wide so that the width W in FIG. When the first layer I is shown by a solid line and the second layer II is shown by an imaginary line, when the foamed synthetic resin block 11 is laminated in a plurality of layers while vertically adjoining the two layers vertically, The wide recesses 16 and 17
Can all overlap vertically. here,
Adjacent two rows of foamed synthetic resin blocks 1 in each layer
It is preferable that the ones are sequentially displaced from each other by 1/3 of the dimension of the long sides 12a and 13a, but instead, the short sides 12b and 1 of the two adjacent rows of the foamed synthetic resin blocks 11 of each layer are replaced.
The positions of 3b can be aligned and laid.

The foamed synthetic resin block 11 is shown in FIG.
As shown in, for example, it can be used for embankment in a mountain such as a garden. In this case, on the ground, etc., if necessary,
A drainage layer 20 such as crow and perlite is provided, and the foamed synthetic resin block 11 is laminated on the drainage layer 20 in a plurality of layers for embankment. Then, if necessary, after cutting the end portion of the laminated structure of the foamed synthetic resin block 11 with a hot nichrome wire or the like so as to form a predetermined inclined surface, a coating layer 21 of non-woven fabric or the like is provided on the laminated structure. The earth and sand layer 22 is formed by embankment with earth and sand on the covering layer 21. At the bottom of the sediment layer 22, a drainage pipe 2 for draining water from the drainage layer 20.
3 may be provided.

Conventionally, foamed synthetic resin block 11
Since there was often or insufficient drainage in the vertical direction, it was necessary to drain in the horizontal direction. Therefore, a drainage layer similar to the drainage layer 20 at the bottom of the laminated body was also provided on the coating layer 21. Although it was necessary to provide the drainage layer in the present invention, the foamed synthetic resin block 11 itself has a sufficient drainage function, so that the drainage layer on the coating layer 21 can be omitted. The foamed synthetic resin block 11 of the present invention can be used for various applications such as embankment on soft ground or sloping ground, embedding of structures, backfilling, etc. in addition to embankment for mountain construction, and at various usage sites. It effectively functions for draining rainwater and groundwater.

Another embodiment of the present invention will be described below. The foamed synthetic resin block 11 shown in FIG. 13 is a modified example of that shown in FIG. 1, and includes upper end portions of the wide concave portions 16 on the long side surface 14 and short side surfaces near the wide concave portion 16. The upper end of the wide recess 17 of 15 is connected by a connecting groove 24 formed on the surface 12. This allows
When the foamed synthetic resin block 11 is laminated to perform embankment or the like, the amount of rainwater or the like flowing into any one of the wide concave portions 16 and 17 is extremely large, and only the wide concave portions 16 and 17 can smoothly move from top to bottom. Even if it is difficult to drain the water, excess rainwater or the like is passed through the connecting groove 24 to the other wide recesses 16, 17
Since it flows into and is drained, a more sufficient drainage function can be secured. The width dimension and the depth dimension of the connection groove 24 may be, for example, about 2 to 30 mm, and preferably both the width dimension and the depth dimension may be about 10 mm.

The expanded synthetic resin block 11 shown in FIG. 14 is configured such that the widthwise end portions of the wide concave portions 16 and 17 on the near side are connected to each other at the shortest distance. As a result, the length of the connecting groove 24 can be set to the shortest, and rainwater or the like can be moved more smoothly between the wide recesses 16 and 17 by the connecting groove 24.

The foamed synthetic resin block 11 of FIG. 15 is shown in FIG.
3 is a modified example of that shown in FIG. 3, in addition to the connecting groove 24, two connecting grooves 25 that extend in a diagonal direction in a mutually intersecting manner and connect the wide concave portions 16 to each other, and two long side surfaces 14
Connecting groove 2 for connecting the wide concave portions 16 facing each other
6, the wide concave portion 1 of the two short side surfaces 15 facing each other
One connecting groove 27 for connecting 7 to each other is provided on the surface 12
It was installed in. In this way, the connection grooves 24 to 27
By increasing the number of each of the wide recesses 16 and 17 and connecting the wide recesses 16 and 17 with a large number of other wide recesses 16 and 17, the other wide recesses when the excessive rainwater or the like flows into one of the wide recesses 16 and 17. The flow of rainwater or the like to 16 and 17 is more smoothly performed, and the drainage function as a whole can be further improved.

The foamed synthetic resin block 11 shown in FIGS. 16 and 17 is a modification of that shown in FIG. 15, and penetrates from the front surface 12 to the back surface 13 of the foamed synthetic resin block 11, for example, has a circular cross section. The hole 28 is formed, the upper end of the through hole 28 is opened in the center of the front surface 12, the lower end of the through hole 28 is opened in the center of the back surface 13, and the opening of the front surface 12 of the through hole 28 is connected to the connecting groove. It is communicated with the intersection position of 25 and 27. As a result, the connecting groove 2
Rainwater and the like flowing in 5 and 27 are drained downward through the through holes 28.

FIG. 2 shows the foamed synthetic resin block 11 of FIG.
When laminated by the same laminating method as in FIG. 2, as is apparent from FIG.
Since the center positions of the front surface 12 and the back surface 13 of the same match each other, the two vertically adjacent through holes 28 communicate with each other. In this case, the through hole 28 also allows the laminated structure of the foamed synthetic resin block 11 to be formed. Since a passage is formed vertically through all the layers, the drainage is more smoothly performed.

On the other hand, the foamed synthetic resin block 11 shown in FIG.
6 is laminated by a laminating method similar to that shown in FIG. 6, as is apparent from FIG. 6, the through holes 2 of some foam synthetic resin blocks 11 are formed.
8 is located below the through-hole 28 of the foamed synthetic resin block 11 of the lower layer, and the other part of the foamed synthetic resin block 11 is
Since the joint hole H formed by the foam synthetic resin block 11 of the lower layer is located below the through hole 28 of FIG. Or a passage penetrating vertically through the laminated structure is formed by the through hole 28 and the joining hole H, and drainage is performed more smoothly than when only the wide recesses 16 and 17 are provided. .

The foamed synthetic resin block 11 shown in FIGS. 18 and 19 is a modification of that shown in FIGS. 16 and 17, and is cut off from the through hole 28 around the opening on the surface 12 side of the through hole 28. A water guiding depression 29 having a large area, for example, a circular cross section is formed, and the intersecting position of the connecting grooves 25 and 27 and the through hole 28 are communicated via the water guiding depression 29. As a result, the wide concave portions 16 and 17 are connected to the connecting groove 2
Rainwater or the like that has reached the water guide depression 29 via 5, 27,
The water is temporarily stored in the water guiding recess 29 until it is drained downward through the through hole 28 or until it flows toward the other wide recesses 16 and 17, so that the drainage can be performed more smoothly. Further, when the foamed synthetic resin block 11 is laminated so that the through holes 28 of the upper and lower two layers of the foamed synthetic resin block 11 communicate with each other, or when the through hole 28 of the upper layer and the joining hole H of the lower layer communicate with each other, Even if there is a slight displacement between the two layers of foam synthetic resin blocks 11 adjacent to
There is an advantage that the drainage between the upper and lower two layers can be transferred through the water guiding recess 29.

In each of the embodiments shown in FIGS. 13 to 19,
Although the connection grooves 24 to 27 are formed on the front surface 12 side of the foam synthetic resin block 11, the connection grooves 24 to 27 are formed on the back surface 13 side of the foam synthetic resin block 11, or both of the front surface 12 and the back surface 13. You may do it.

[0071]

As described above, according to the laminated structure of the foamed synthetic resin block of the present invention, a plurality of rectangular parallelepiped foamed synthetic resin blocks each having a recessed portion extending from the front surface to the back surface are formed on at least one side surface. By forming a layer and stacking a plurality of such layers, the recess of the foamed synthetic resin block of each layer forms a passage that communicates in the vertical direction. Therefore, the passage is formed in the laminated structure of the plurality of layers in the vertical direction. As a result, unlike the conventional path that is bent alternately in the horizontal direction and the vertical direction, the substantially straight path allows rainwater and the like to flow downward from above in the laminated structure. The water will be drained smoothly.

In the laminated structure of the foamed synthetic resin block, the directions of the long sides of the front and back surfaces of the foamed synthetic resin blocks of the respective layers are aligned, and the directions of the long sides of the vertically adjacent two layers of the foamed synthetic resin blocks are aligned. By making them orthogonal to each other, two layers of foam synthetic resin blocks that are vertically adjacent to each other are laminated so that their joints are not aligned. Further, since the foamed synthetic resin blocks are laid side by side in close contact with each other, the foamed synthetic resin blocks can be sufficiently adhered to other foamed synthetic resin blocks except for the concave portion provided on the side surface thereof. Compared to the block laminated structure, the strength of the entire laminated structure is also sufficiently strong,
There are few problems that the foamed synthetic resin blocks of each layer are displaced due to vibration or load.

In the laminated structure of the foamed synthetic resin block, if the concave portion of the foamed synthetic resin block of each layer has a maximum width dimension larger than the maximum depth dimension, in particular, the laminated structure has a foamed synthetic resin block of each layer. In the case where the foamed synthetic resin blocks are laminated so that the directions of the long sides thereof are aligned and the directions of the long sides of the foamed synthetic resin blocks that are vertically adjacent to each other are orthogonal to each other, the foamed synthetic resin blocks that are vertically adjacent to each other are laminated. The concave portions are communicated with each other in the vertical direction while intersecting each other so that the cross-sectional shape in the plane parallel to the front surface and the back surface forms a substantially cross shape. In this case, even if there is a slight misalignment between the foam synthetic resin blocks of two layers vertically adjacent to each other, the recesses of the foam synthetic resin blocks of two layers vertically adjacent to each other can communicate with each other. Even if there is a slight misalignment between the two adjacent foam synthetic resin blocks, there is an advantage that the drainage flow is less likely to be blocked between the two layers.

When the foamed synthetic resin block of each layer of the laminated structure of the foamed synthetic resin block is made of expanded polystyrene, a laminated structure excellent in lightness, water resistance, durability, economy and the like can be obtained.

In the method for laminating a foamed synthetic resin block of the present invention, a plurality of rectangular parallelepiped foamed synthetic resin blocks each having a concave portion extending from the front surface to the back surface are formed on at least one side surface to form a layer. Since the layers of the synthetic resin block are laminated in a plurality of layers so that the recesses of the two adjacent foam synthetic resin blocks that are vertically adjacent to each other communicate with each other in the vertical direction, the plurality of layers communicate with each other in a substantially straight line in the vertical direction. A passage is formed through which the rainwater and the like are smoothly drained from the upper side to the lower side in the laminated structure of a plurality of layers.

In the method for laminating the foamed synthetic resin blocks, the foamed synthetic resin blocks of the respective layers are laid side by side with the directions of the long sides of the front surface and the back surface aligned, and the long sides of the two vertically adjacent foam synthetic resin blocks are arranged. By stacking them in the directions orthogonal to each other, it is possible to stack two layers of foam synthetic resin blocks that are vertically adjacent to each other so that the joints are not aligned with each other, thereby increasing the strength of the entire laminated structure. It is possible to improve and reduce the problem that the foamed synthetic resin block of each layer is displaced in the vertical direction due to vibration or the like.

According to the foamed synthetic resin block of the present invention,
Since at least one side surface is provided with a recess having a maximum width dimension larger than the maximum depth dimension from the front surface to the back surface of the foamed synthetic resin block, the recessed portion allows rainwater or the like to flow from above along the side surface of the foamed synthetic resin block. A drainage passage that guides downwards is formed, and there is an advantage that rainwater and the like can be drained smoothly.
In addition, when laminating the foamed synthetic resin blocks in a plurality of layers for embankment or the like, the directions of the long sides of the front and back surfaces of the foamed synthetic resin blocks of each layer are aligned, and the foamed synthetic resin blocks are vertically adjacent to each other. When the long sides of the foam synthetic resin blocks are laminated so that the recesses of the two layers of foamed synthetic resin blocks vertically adjacent to each other are perpendicular to each other and the recesses communicate with each other, the recesses have a maximum width dimension rather than a maximum depth dimension. Is a large and wide concave portion, the concave portions of the two layers of foamed synthetic resin blocks adjacent to each other vertically communicate with each other while crossing each other in a cross shape. In this case, even if there is a slight misalignment between the two adjacent foam synthetic resin blocks,
Since the recesses of each layer are slightly displaced in the width direction and the recesses can still communicate with each other, even if there is a slight misalignment between the foam synthetic resin blocks of two layers vertically adjacent to each other, drainage between the two layers is possible. Flow is never interrupted.

Further, in the above-mentioned structure, the corresponding short sides of the foamed synthetic resin block are arranged such that the approximate center position of the corresponding side of the short sides of the front surface and the back surface is the center of the recess in the width direction. Each of the side surfaces is provided with one recessed portion, and further, on the corresponding side of the long side on the front surface and the back surface, from the two corresponding ridge lines between the side surfaces on the short side, the dimension of the long side is 1 in the long side direction. If two recesses are provided so that a position separated by / 4 becomes the center of the recess in the width direction, the foam synthetic resin blocks may be laminated in a plurality of layers to perform embankment or the like. The directions of the long sides of the front and back surfaces of the foamed synthetic resin block are aligned, and the directions of the long sides of the foamed synthetic resin block are orthogonal to each other in the two layers vertically adjacent to each other, and the two layers of the foamed synthetic resin vertically adjacent to each other. Of the block When the parts are laminated so that they communicate with each other vertically, the recesses of all the foam synthetic resin blocks of each layer can be communicated with the recesses of the foam synthetic resin blocks of the upper and lower layers. Since all the recesses of the synthetic resin block can be used as drainage passages, the drainage function of the recesses becomes extremely high.

At least two side surfaces of the rectangular parallelepiped foamed synthetic resin block are formed with recesses extending from the front surface to the back surface, and connection grooves for connecting the recesses on the two side surfaces are formed on the surface of the foamed synthetic resin block. If it is formed on the back surface, the concave portion forms a drainage passage for guiding rainwater, groundwater, etc. from above to below along the foamed synthetic resin block, and there is an advantage that drainage from above to below is smoothly performed. . In addition, when a plurality of layers of the foamed synthetic resin blocks are stacked and embankment or the like is performed, the foamed synthetic resin blocks are positioned and stacked so that the recesses on the side surfaces of the two layers of the foamed synthetic resin blocks that are vertically adjacent to each other are vertically connected. If it goes, the recesses of the foam synthetic resin blocks of a plurality of layers form a passage that communicates with each other in a substantially straight line in the vertical direction, and through this passage, drainage in the vertical direction is smoothly performed in the laminated structure of the foam synthetic resin block. become.

Further, even if a large amount of rainwater or the like flows into any of the recesses within a short period of time and smooth drainage is no longer performed or if clogging occurs, a part of the rainwater or the like that flows into the recesses will still be present. Since it is diverted to the other concave portion of the foamed synthetic resin block through the connecting groove and is drained by the other concave portion, smooth drainage can be performed.

In addition to the above structure, if the through hole penetrating from the front surface to the back surface is provided in the foamed synthetic resin block and the connecting groove is communicated with the through hole, one of the concave portions is connected to the other through the connecting groove. At least a part of rainwater or the like flowing in the concave portion is guided from the front surface side to the back surface side of the foamed synthetic resin block through the through hole, and the drainage from the upper side to the lower side is further smoothly performed. In this case, when stacking the foamed synthetic resin blocks in a plurality of layers,
If the through holes of the foamed synthetic resin blocks of the layers are vertically communicated with each other, the through holes also form a passage that vertically connects the laminated structure of the plurality of layers, and drainage in the laminated structure is smoother. There are advantages to being done. Further, instead of communicating through holes of two layers that are vertically adjacent to each other, through holes of the upper layer and recesses of the lower layer in the upper and lower two layers are communicated with each other, or recesses of the upper layer and through holes of the lower layer are communicated with each other. Also, the through hole and the concave portion form a passage that vertically connects the laminated body of the plurality of layers, so that smoother drainage is performed.

If the opening of the front surface or the back surface of the foamed synthetic resin block of the through hole is located in the vicinity of the center of the front surface or the back surface, the strength of the foamed synthetic resin block decreases due to the provision of the through hole. Can be minimized. If the through hole is provided near the side surface of the foamed synthetic resin block, particularly near the recess, the strength of the foamed synthetic resin block may decrease, so it is preferably provided near the center.

When the foamed synthetic resin blocks are regularly laid out and laminated in a plurality of layers, the through holes are opened in the vicinity of the center of the front surface and the back surface. Can be easily communicated in the vertical direction. Further, when the recesses of the foamed synthetic resin block are provided at corresponding positions on the opposite side surfaces of the foamed synthetic resin block, the connecting grooves for connecting the recesses on these side surfaces are provided on the front surface and / or the back surface of the foamed synthetic resin block. Will pass near the center,
Opening the through hole near the center of the front surface and / or the back surface is suitable for connecting the through hole and the connection groove.

By providing a water guiding recess connected to the through hole around the opening on the front surface and / or the back surface of the through hole, rainwater or the like flowing in the connecting groove smoothly penetrates through the water guiding recess. As the water flows into the holes, the drainage function of the through holes can be further improved. Further, when the foam synthetic resin blocks are laminated in a plurality of layers, when two vertically adjacent through holes are communicated with each other, a slight misalignment occurs between the vertically adjacent two synthetic resin blocks when laminated. Even if occurs, since rainwater flowing down from the through-hole of the foam synthetic resin block of the upper layer flows into the through-hole of the foam synthetic resin block of the lower layer through the water guiding depression,
The drainage flow is not interrupted between the two vertically adjacent layers. When the through hole of the foam synthetic resin block of the upper layer and the recess of the foam synthetic resin block of the lower layer communicate with each other, or when the recess of the foam synthetic resin block of the upper layer communicates with the through hole of the foam synthetic resin block of the lower layer However, since the through hole has the water guiding depression, the problem that the drainage flow is blocked by the slight displacement between the upper and lower two layers of foamed synthetic resin blocks is unlikely to occur.

If the connecting groove of the foamed synthetic resin block connects the recesses of the adjacent and / or opposing side surfaces of the foamed synthetic resin block with the shortest distance, the recesses of the adjacent and / or opposing side surfaces are formed. The rainwater or the like can move smoothly in a short time, and the drainage function when excess rainwater or the like flows into any of the recesses is further improved.

If the recess of the foamed synthetic resin block is a wide recess having a maximum width dimension larger than the maximum depth dimension, when the foamed synthetic resin block is laminated in a plurality of layers, a plurality of foamed synthetic resin blocks of each layer are laminated. Are laid side by side with the long sides of the front and back sides aligned, and the two sides of the foam synthetic resin blocks vertically adjacent to each other are laminated so that the directions of the long sides thereof are orthogonal to each other, and the two layers vertically adjacent to each other. When the wide concave portions of the foamed synthetic resin block are vertically communicated with each other, two wide concave portions adjacent to each other in a plane parallel to the front surface and the back surface of the foam synthetic resin block intersect each other in a substantially cruciform cross-sectional shape. However, even if there is a slight misalignment between the vertically adjacent two layers of foamed synthetic resin blocks, the two vertically adjacent wide recesses will be slightly wider in the width direction. Only be a possible still communicating, never passage by wide recess is interrupted by two layers vertically adjacent.

[Brief description of drawings]

FIG. 1 is a perspective view of a foam synthetic resin block according to an embodiment of the present invention.

FIG. 2 is an explanatory plan view showing a state in which the foamed synthetic resin blocks are laminated.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is an explanatory plan view showing a joint hole formed when the foamed synthetic resin block is laid.

FIG. 5 is an explanatory plan view showing only the bonding holes in a plurality of layers of the laminated structure of the foamed synthetic resin block.

FIG. 6 is an explanatory plan view showing a state in which foamed synthetic resin blocks are laminated by another laminating method.

FIG. 7 is a schematic plan view showing a foamed synthetic resin block of a modified example of the invention.

FIG. 8 is a schematic plan view showing a foamed synthetic resin block of another modification of the present invention.

FIG. 9 is a schematic plan view showing a foamed synthetic resin block of still another modification of the present invention.

FIG. 10 is a schematic plan explanatory view showing a foamed synthetic resin block of another embodiment of the present invention.

11 is a schematic plan view showing a state in which the foamed synthetic resin blocks of FIG. 10 are laminated.

FIG. 12 is a schematic cross-sectional explanatory view showing a state in which an embankment is built using the foamed synthetic resin block of the present invention.

FIG. 13 is a perspective view showing a foamed synthetic resin block of another embodiment of the present invention.

FIG. 14 is a perspective view showing a foam synthetic resin block of still another embodiment of the present invention.

FIG. 15 is a perspective view showing a foamed synthetic resin block of another embodiment of the present invention.

FIG. 16 is a perspective view showing a foamed synthetic resin block according to another embodiment of the present invention.

FIG. 17 is a sectional view taken along the line DD of FIG.

FIG. 18 is a perspective view showing a foamed synthetic resin block according to another embodiment of the present invention.

19 is a sectional view taken along the line EE of FIG.

FIG. 20 is a perspective view showing a conventional foamed synthetic resin block.

[Explanation of symbols]

11 Foam synthetic resin block 12 surface 13 Back side 12a, 13a long side 12b, 13b Short side 14 Long side 15 Short side 16,17 Wide recess (recess)

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E02D 17/18 E02D 29/02 308 E02B 3/14

Claims (14)

(57) [Claims] 1. A plurality of layers each of which is formed by laying out a plurality of rectangular parallelepiped foam synthetic resin blocks each having a concave portion extending from the front surface to the back surface on at least one side surface to stack the foam synthetic resin blocks of each layer. Concave part up
A foamed synthetic resin block laminated structure, characterized in that a passage communicating with a straight line downward is formed. 2. The directions of the long sides of the front and back surfaces of the plurality of foam synthetic resin blocks of each layer are aligned, and the directions of the long sides of two vertically adjacent foam synthetic resin blocks are orthogonal to each other. The foamed synthetic resin block laminated structure according to claim 1. 3. The foamed synthetic resin block laminated structure according to claim 1, wherein the recess of the foamed synthetic resin block of each layer has a maximum width dimension larger than a maximum depth dimension. 4. The expanded synthetic resin block laminated structure according to claim 1, wherein the expanded synthetic resin block of each layer is made of expanded polystyrene. 5. A plurality of rectangular parallelepiped foamed synthetic resin blocks each having a concave portion extending from the front surface to the back surface are laid on at least one side surface to form a layer, and the foamed synthetic resin block layers are vertically adjacent to each other. By stacking a plurality of layers so that the concave portions of the two-layer foam synthetic resin block that communicate with each other in the vertical direction are linearly formed in the vertical direction.
A method for laminating a foamed synthetic resin block, which comprises forming a passage communicating with the foamed synthetic resin block. 6. A plurality of foamed synthetic resin blocks of each layer are laid out so that the long sides of the front surface and the back surface are aligned, and the directions of the long sides of two vertically adjacent foamed synthetic resin blocks are mutually aligned. The foamed synthetic resin block laminating method according to claim 5, wherein the foamed synthetic resin block laminating is performed in a plurality of layers so as to be orthogonal to each other. 7.The surface of the foamed synthetic resin block of each layer and
Two layers vertically aligned with the long sides of the back side aligned
The directions of the long sides of the foamed synthetic resin block are orthogonal to each other.
And the two layers of foam synthetic resin blocks that are vertically adjacent
Recesses on top Foamed synthetic tree laminated underneath
A fat block, The recess is the foamed synthetic resin block. At least one of
From one side to the other side of the foam synthetic resin block
The maximum width dimension is larger than the maximum depth dimension.Big thingFeaturing
Foam synthetic resin block that does. 8. The recessed portions are formed on the corresponding short-side side surfaces of the front surface and the back surface of the foamed synthetic resin block such that the approximate center position of the short-side side surface is the center of the recess in the width direction. one places provided, further, the phase corresponding long side side surfaces of the front and back surfaces, 1/4 apart position of the two long side dimension from the ridge line to the respective long-side direction definitive phase corresponding to the short side face So that the center of the recess in the width direction,
The foamed synthetic resin block according to claim 7, wherein each of the recesses is provided at two places. 9.The surface of the foamed synthetic resin block of each layer and
Two layers vertically aligned with the long sides of the back side aligned
The directions of the long sides of the foamed synthetic resin block are orthogonal to each other.
And the two layers of foam synthetic resin blocks that are vertically adjacent
Foamed synthetic resin laminated so that the recesses are vertically adjacent to each other
A fat block, At least two side surfaces of the foamed synthetic resin block are
From the front to the back of the foamed synthetic resin blockSo
In the recessAnd the concave portions on the two side surfaces are formed.
A connecting groove for connecting is formed on the front surface and / or the back surface.
A foamed synthetic resin block characterized by: 10.Surface of foamed synthetic resin block of each layer
And the long sides of the back surface are aligned and are vertically adjacent 2
Layers of foamed synthetic resin blocks whose long sides are oriented in
Two layers of foamed synthetic resin blocks that intersect and are vertically adjacent
Between the recesses, the through holes, or the recess and the
It is a foamed synthetic resin block that is laminated so as to communicate with each other.
hand, At least two side surfaces of the foamed synthetic resin block are
From the front to the back of the foamed synthetic resin blockSo
In the recessAnd the concave portions on the two side surfaces are formed.
A connecting groove for connecting is formed on the front surface and / or the back surface, and
From the surface of the foamed synthetic resin block
Penetrate the backAs the through holeSpecial communication with
Foam synthetic resin block to be collected. 11. The foamed synthetic resin block according to claim 10, wherein the openings of the front surface and the back surface of the through hole are located near the center of the front surface and the back surface. 12. The water guiding recess connected to the through hole is provided in the vicinity of the periphery of the opening on the front surface and / or the back surface of the foam synthetic resin block of the through hole. Foam synthetic resin block. 13. The foamed synthetic resin block according to claim 9, wherein the connection groove connects recesses on adjacent and / or opposed side surfaces of the foamed synthetic resin block at a shortest distance. . 14. The recessed portion is a wide recessed portion having a maximum width dimension larger than a maximum depth dimension.
14. The foamed synthetic resin block according to any one of 1 to 13.