JP4494959B2 - Foam resin block for embankment - Google Patents

Description

  The present invention relates to a foamed resin block body for embankment that constitutes a foamed resin block for embankment by inverting and combining the two, and particularly suppresses the influence of buoyancy even when used in places where there is a large amount of groundwater rise or drainage. It is made to be able to.

  Conventionally, in civil engineering work such as soft ground and steep slopes, embankments are constructed by using foamed resin blocks for embankment using synthetic resin foams such as foamed polystyrene instead of forming embankments with earth and sand. Alternative construction methods are being implemented.

  In such an embankment replacement method, by using the foamed resin block for embankment, it is possible to utilize excellent characteristics such as lightness, self-supporting property, water resistance, heat insulation, and workability.

  However, synthetic resin foams such as expanded polystyrene used as the material for the foamed resin block for embankment are lighter in density and lighter than water, and have water resistance. When flooded due to typical rainfall or flooding, the foamed resin block for embankment becomes unstable due to large buoyancy, and the original independence cannot be maintained.

  Therefore, various proposals have been made to suppress the influence of such buoyancy.

  For example, a through-hole is provided in a foamed resin block for embankment, and a member such as a pipe or a filler such as concrete is put in that part to strengthen the stacking. Not only will the construction time increase, it will lead to an increase in weight, and the effect of using the foamed resin block for embankment will be halved.

  On the other hand, as a devised structure of the foamed resin block itself for embankment, for example, in Patent Document 1, as shown in a bottom view of FIG. 9A and a cross-sectional view of FIG. The projecting portion 2 is provided with the space portion 3 open, and the space portion 3 is opened to the outside. The space portion 3 serves as a water conduit and a drainage channel, and water is introduced into the space portion 3 to increase buoyancy. On the other hand, the lightness is restored by draining the water level as it is reduced.

  Further, in Patent Document 2, as shown in the perspective view of FIG. 10, nine circular through holes 5 are provided at the center of a block 4 whose upper and lower surfaces are square, and three semicircular side through recesses 6 are provided on the side. A four-corner four-corner through recess 7 is formed in each of the four corners, a lateral groove 8 is formed in the lower surface portion, and a protrusion 9 is formed in the upper surface portion. , 7 is allowed to function as a drainage channel so that the block can not be lifted even when the groundwater rises, and the original function can be restored when the water level drops.

  Further, in Patent Document 3, as shown in a top perspective view of FIG. 11A and a bottom perspective view of FIG. 11B, a box-shaped body whose bottom surface is opened and whose top surface is substantially sealed by the top plate 10 is disclosed. A plurality of water storage chambers 11 are formed in the interior, and the plurality of water storage chambers 11 are divided into four groups by a partition wall 12 passing through the center of the box-shaped body, and each of the partition walls 12 and the slits 13 on the outer wall is divided. Each group can be poured and drained, and the top plate 10 is provided with a large number of grooves 14 and openings 15. Water that has permeated from the surface of the embankment or the like through the slits 13 of the outer wall and the partition wall for each group Water is poured into the water reservoir chamber 11 and water is quickly poured or drained at the opening 15 of the top plate 10 in accordance with the submerged water level or the water level lowering, and the buoyancy is sufficiently suppressed and the drainage capacity is excellent. I am doing so.

Also, Patent Document 4 and Patent Document 5 disclose similar foamed resin blocks for embankment.
Japanese Utility Model Publication No. 3-128730 JP 2001-271353 A JP 2002-38486 A Japanese Utility Model Publication No. 7-8434 JP 11-229379 A

  However, in the embankment material of Patent Document 1, when two embedding materials are combined so that the foamed resin plates 1 and 1 are arranged up and down and used as one unit, the gap 3 between the projections 2 and 2 is interposed. However, in the case of a sudden rise in water level due to the fact that the upper and lower surfaces are blocked, there is a problem that the inflow of water is not smooth and large buoyancy acts.

  Moreover, in the foaming resin block for embankment of patent document 2, since the through-hole 5, the side-surface through recessed part 6, and the 4 corner through recessed part 7 are formed in the up-down direction, inflow and outflow of water are performed smoothly. In addition, there is a problem that the inflow and outflow of water to the side are difficult to be performed, and that a large number of through-holes 5 are taken during construction.

  Furthermore, in the foamed resin molded body of Patent Document 3, the inflow and outflow of water are performed by the slits 13 such as the partition wall 12 and the opening 15 of the top plate part 10, both of which are relatively small and abrupt. When flooding or water level rises, water and drainage resistance occurs, and there is a problem that large buoyancy acts and drainage takes time.

  On the other hand, regarding the moldability of the foamed resin block, in any case of Patent Documents 1 to 3 (5), the load remaining in the block is supported even if the shape of the void into which water flows is relatively simple. The part to be made has a complicated shape, and there is a problem that a great deal of cost is required to manufacture the mold.

  In addition, if the through-holes and the like are enlarged in order to suppress the influence of buoyancy, there is a problem that the contact area of the support portion when the blocks are stacked at the time of laying is reduced, and the compressive strength is reduced.

  This invention has been made in view of the above-mentioned problems of the prior art, and can smoothly inject and drain water in both the vertical direction and the lateral direction, and can secure a large gap, and has a high compressive strength, a load It is intended to provide a foamed resin block body for embankment that can be applied uniformly, has a simple structure, and is easy to mold.

  Therefore, as a result of intensive studies on the foamed resin block body for embankment, it is necessary to ensure smooth water flow in both the vertical and lateral directions, and the gap is large regardless of the shape. However, it is effective that the support portion remaining in the block has a shape that is uniformly arranged so that the load can be uniformly supported and the compressive strength can be supported with the smallest possible cross-sectional area. The headline and the present invention have been completed.

That is, in order to solve the above-mentioned problem, the foamed resin block body for embankment according to claim 1 of the present invention is a foamed resin block body that constitutes a foamed resin block for embankment by reversing and combining each other . A corner post having a truncated cone shape or a truncated pyramid shape having a quarter plane section is provided at the four corners so as to protrude, and a truncated cone shape or a truncated pyramid shape having a half planar section on the side surface portion of the foamed resin plate. A side column portion of the foamed resin plate is provided to protrude, and a central column portion having a truncated cone shape or a truncated pyramid shape is provided to protrude at the center portion of the foamed resin plate, and these corner column portions, side column columns, and center column portions are provided. the configure multiple struts as a constant array and is characterized by comprising a plurality of through portions at a constant sequence on the foamed resin sheet portion where the strut is not provided.

According to the embankment for foamed resin block body, corner struts of one truncated cone or truncated pyramidal shape of the flat cross section 4 minutes at the four corners of the foamed resin sheet is provided so as to protrude, the foamed resin sheet A side column portion having a truncated cone shape or a truncated pyramid shape having a half cross section is provided on the side surface portion of the foam resin plate, and a central column portion having a truncated cone shape or a truncated pyramid shape is protruded from the center portion of the foamed resin plate. A plurality of struts are configured with the corner struts, the side struts, and the central struts being arranged in a fixed manner, and the plurality of struts provided by projecting to the foamed resin plate in a fixed arrangement are butted together. By making it a block, the load is uniformly supported and the compressive strength is increased. On one side of the foamed resin plate against the buoyancy, the side of the support column is a water injection / drainage channel, and the other side is foamed. Pour water through a plurality of through-holes provided in a fixed arrangement on the resin plate. With water channel, so that can cope with sudden level rise and flooding.

  Further, in the foamed resin block body for embankment according to claim 2 of the present invention, in addition to the configuration according to claim 1, a groove portion communicating with the penetrating portion is provided on the surface of the foamed resin plate opposite to the support portion. The opening is provided at the outer end of the foamed resin plate.

  According to the foamed resin block body for embankment, on the other side of the foamed resin plate with respect to buoyancy, a groove portion formed by communicating with a plurality of through portions provided in a fixed arrangement on the foamed resin plate is used as a water pouring / draining channel. As a result, the drainage becomes even smoother, and it is possible to cope with a sudden rise in water level and flooding.

  Furthermore, in the foamed resin block body for embankment according to claim 3 of the present invention, in addition to the configuration according to claim 1 or 2, a fitting convex portion and a fitting concave portion that can be fitted and connected to each other are provided on the support column portion. , And arranged so as to be able to be reversed and combined.

  According to this foamed resin block body for embankment, by disposing the fitting convex portion and the fitting concave portion, which can be fitted and connected to each other, so as to be able to be reversed and combined, the shift is prevented and the stability is improved. It is possible to improve and make it a stronger block.

According to fill foam resin block body according to claim 1, wherein the present invention, is projected is a corner strut of one truncated cone or truncated pyramidal shape of the flat cross section 4 minutes at the four corners of the foamed resin sheet Provided, and a side column portion having a truncated cone shape or a truncated pyramid shape having a half plane cross section is provided on the side surface portion of the foamed resin plate, and a truncated cone shape or a truncated pyramid shape is provided at the center of the foamed resin plate A central support column is provided so as to protrude, and a plurality of support columns are configured with the corner support, the side support, and the central support as a fixed arrangement, and a plurality of the support columns are provided to protrude in a fixed arrangement on the foamed resin plate. Since the post portions are butted together to form a block, the load can be uniformly supported and the compressive strength can be increased.

  In addition, on one side of the foamed resin plate with respect to buoyancy, the side of the column part is a water pouring / draining channel, and on the other side, a plurality of penetrating parts provided in a fixed arrangement on the foaming resin plate are arranged as a water pouring / draining channel Therefore, water can be poured and drained smoothly even against sudden water level rise and flooding, and buoyancy can be suppressed as much as possible.

  Furthermore, according to the foamed resin block body for embankment according to claim 2 of the present invention, the other side of the foamed resin plate with respect to buoyancy is formed in communication with a plurality of through portions provided in a fixed arrangement on the foamed resin plate. The groove portion can be used as a water pouring / drainage channel, making the water pouring / drainage smoother, and can cope with a sudden rise in water level and flooding.

  Moreover, according to the foaming resin block body for embankment of Claim 3 of this invention, by arrange | positioning the fitting convex part and fitting concave part which can be fitted and connected mutually provided in the said support | pillar part so that reversal combination is possible. A block having a single shape can be combined to form a block, and can be prevented from shifting to improve stability, and can be made to be a stronger block.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 and 2 relate to one embodiment of a foamed resin block body for embankment of the present invention, FIG. 1 (a) is a perspective view seen from above, (b) is a perspective view seen from below, FIG. (A) is the same front view as the back and left and right sides, (b) is a plan view, and (c) is a bottom view.

  This foamed resin block body for embankment is a block body for embankment made of synthetic resin foam such as expanded polystyrene used in place of soil or earth and sand when embankment is performed on soft ground, etc. The block body is inverted and arranged on the lower side and overlapped to be used as one embankment block. For example, the vertical and horizontal sizes are 1 m.

  The foamed resin block body 20 for embankment is provided by integrally molding a plurality of supporting column portions 22 in a fixed arrangement on a foamed resin plate 21 having a rectangular planar shape, for example, a square shape, for example, nine in the central portion. The central columnar portion 22a having a truncated cone shape is provided with a certain interval, and three side column portions 22b each having a half flat cross section are provided with a certain interval on the side surface, and the flat cross section is provided at the four corners. Is provided with one quarter corner support 22c, and the center of each support 22a, 22b, 22c is arranged at the intersection of the grid with a square outline and a line dividing the square into four equal parts. It is a fixed array.

  In addition, the fixed arrangement | sequence of these support | pillar parts 22 is maintained so that fixed foaming resin block bodies 20 adjacent to each other can be maintained even when the foaming resin block bodies 20 for embankment are arranged side by side, front and back. is there.

  The size of the support column 22 is about 60 to 65% of the solid made of the square of the foam resin plate 21 and the height (total height) of the foam resin plate 21 and the support column 22. Thus, the size of the large-diameter part and the small-diameter part of the frustoconical shape is determined. For example, one side of the square is 1 m, the total height is 250 mm (the height of the foamed resin plate is 45 mm, the height of the support column is 205 mm), The diameter of the large-diameter portion of the truncated cone shape of the support column is 160 mm, and the diameter of the small-diameter portion is 150 mm.

  When the porosity is lower than 60%, drainage tends to be poor, and when the porosity is higher than 65%, the block tends to move from a predetermined position during flooding.

  The foamed resin plate 21 constituting the embankment foamed resin block body 20 and the integrally formed support column 22 are, for example, synthetic resin foams such as foamed polystyrene, foamed polypropylene, foamed polyethylene, and foamed polyurethane. However, expanded polystyrene is superior in terms of moldability, processability, and cost.

  And the density of such a synthetic resin foam should just be set suitably with the porosity of the foamed resin block body 20 for embankments, and required compressive strength, and is 30-60 kg / m3, Preferably it is 40-50 kg / m3. If it is less than 30 kg / m 3, the compressive strength is insufficient, and if it exceeds 60 kg / m 3, the amount of resin used increases, resulting in an increase in weight and cost.

  Moreover, in this foamed resin block body 20 for embankment, the several penetration part 23 which penetrates the front and back in the foamed resin board 21 is provided in the part which does not overlap with the support | pillar part 22 by fixed arrangement | sequence.

  These through-holes 23 are constituted by, for example, circular through-holes 23a, and are formed at 16 intersections of lines connecting the centers of the columns 22 (22a, 22b, 22c) so as not to overlap with the columns 22. It is arranged in a staggered manner with respect to the center of the support column 22 and has a fixed arrangement.

  In addition, the fixed arrangement of the through-holes 23 is such that the fixed arrangement including the adjacent foamed resin block bodies 20 for embankment can be maintained even when the foamed resin block bodies 20 for embankment are arranged side by side. is there.

  The size of these through-holes 23a only needs to ensure a flow passage cross-sectional area that allows smooth vertical pouring and drainage in all through-holes 23a. For example, the embedding foam resin block body (1 m × 1 m × 250 mm) having the above dimensions is used. In this case, the diameter of one through hole is 70 mm, and 16 are formed at equal intervals.

  The size of the through-hole 23a is such that it is difficult for a worker to step on the block body 20 and the above-mentioned diameter is 70 mm, which satisfies this condition.

  Further, in the foamed resin block body 20 for embankment, a groove portion 24 communicating with the through portion 23 is formed on the surface of the foamed resin plate 21 opposite to the support column portion 22, and the end of the groove portion 24 is outside the foamed resin plate 21. It is formed so as to open at the end, and is constituted by a groove 24a having a rectangular cross section, for example.

  Thereby, the foamed synthetic resin block body 20 for the embankment having the same shape is inverted and arranged on the lower side to be stacked to form one foamed synthetic resin block 20A for the embankment, which can be stacked up and down, The groove portion 24 ensures the water flowability of the overlapping surface when the blocks B are stacked on top.

  For example, the groove portions 24 are arranged in a lattice shape parallel to the outline of the foamed resin plate 21, and four groove portions 24 are formed in a lattice shape in the vertical and horizontal directions, and the bottom surface of the groove 24 a of the groove portion 24 is positioned on the through portion 23. By forming in such a manner, the penetrating part 23 and the groove part 24 communicate with each other.

  The size of the groove portion 24 is such that the water coming to the upper surface of the foamed resin plate 21 flows laterally through the through portion 23, or conversely, the water from the side of the foamed resin plate 21 flows through the upper surface of the through resin portion 21. For example, in the case of a foamed resin block body for embankment (1 m × 1 m × 250 mm) having the above dimensions, the width is set to 70 mm, which is the same as the diameter of the through hole 23, and the depth is set to 10 mm.

  Moreover, in this foaming resin block body 20 for embankment, it is one embankment by inverting the foaming resin block body 20 for embankment of the same shape, arrange | positioning it on the lower side, and overlapping this foaming resin block body 20 for embankment on it. In order to prevent displacement when used as a foam resin block (filling block) 20A, as shown in FIG. 2, a fitting connecting portion 25 is provided at the tip of the central column portion 22a in the central portion, and the fitting protrusion It is comprised by the part 25a and the fitting recessed part 25b.

  For example, as shown in FIG. 2, the fitting connecting portion 25 is formed with fitting convex portions 25 a on two of the four diagonal positions among the nine central supporting column portions 22 a in the central portion. By forming the fitting recesses 25b on the two sides, the embossed foam resin blocks 20 having the same shape are inverted and placed on the lower side and overlapped, thereby fitting the fitting irregularities 25a and 25b together. It can connect and it can be set as one foaming resin block for embankment (block for embankment) 20A.

  And as the shape of these fitting connection parts 25, it is set as column-shaped fitting convex part 25a and cylindrical fitting concave part 25b, for example, Furthermore, it is a central axis direction to a column-shaped side or cylindrical side. One or more vertical ridges may be formed in parallel with each other so that they can be firmly connected, or one to a plurality of horizontal ridges along the circumferential direction may be formed and firmly connected.

  The size of the fitting connecting portion 25 is not limited as long as it can be connected to each other to prevent deviation. For example, in the case of a foamed resin block body for embankment of the above dimensions (1 m × 1 m × 250 mm), the fitting uneven portion 25a, The size of 25b is 80 mm in diameter and the height or depth is 10 mm. Moreover, when forming a protrusion, what is necessary is just to make a width | variety 1-3mm and height 0.5-1mm, and when too high, it will become difficult to insert when connecting.

  In addition, arrangement | positioning and the number of the fitting connection parts 25 are not restricted to said case, What is necessary is just the arrangement | positioning and number which can invert the foaming resin block body for embankment and mutually connect.

  Further, the embedding foam resin block 20A, which is formed by inverting two embedding foam resin blocks 20, is attached with a non-woven fabric so as to surround its four side surfaces, and water is introduced and discharged. It may be possible to prevent intrusion, and it is particularly effective to attach to the embankment foam resin block 20A laid at a position in contact with the earth and sand.

  When embankment is constructed using the embedding foam resin block body 20 configured as described above, the two embedding foam resin block bodies 20 are reversed, and each support portion is used with an adhesive or the like as necessary. The embedding foam resin block 20A to which 22 and the fitting connection part 25 are connected is prepared, and a non-woven fabric attached so as to surround the four side surfaces of the embedding foam resin block 20A is prepared.

    And after performing foundation work, such as excavating the ground which constructs embankment, it lays out so that the foaming resin block 20A for embankment which connected two foaming resin block bodies 20 for embankment may be arranged in order front and rear and right and left. In addition, what is necessary is just to use the coupling metal fitting with a nail | claw etc. which are used for the usual EPS light weight embankment method for laying construction.

  These foaming resin blocks 20A for embankment are stacked up to the height at which flooding is expected due to the rise of groundwater level, seasonal rainfall or flooding. For example, as shown in FIG. After laying only one level (two levels of the foamed resin block body 20 for embankment), a normal solid foamed resin block B is constructed thereon so as to be stacked in the required number of steps according to the shape of the embankment.

  In this construction, since the planar shape of the foamed resin block body 20 for embankment is left-right symmetric, it is not necessary to pay attention to the directionality when laying back and forth, and can be easily laid.

  According to such a foamed resin block body 20 for embankment, since the plurality of support portions 22 provided by projecting in a fixed arrangement on the foamed resin plate 21 are brought into contact with each other to form the foamed resin block 20A for embankment, A load can be uniformly supported by the support column 22, and a large compressive strength can be secured with a small cross-sectional area.

  Thereby, at the same time as increasing the compressive strength, the porosity can be increased, and the porosity can be set to 60 to 65%.

  In addition, on one side of the foamed resin plate 21 with respect to buoyancy, the side of the support column 22 is a water pouring / drainage channel, and on the other side, a plurality of through portions 23 provided in a fixed arrangement on the foamed resin plate 21 and these penetrating holes The groove portion 24 formed in communication with the portion 23 can be used as a water pouring / drainage channel, and water can be smoothly poured / drained against a sudden rise in water level or submersion, and buoyancy can be suppressed as much as possible. At the same time, the water is smoothly discharged when the water level is lowered, and the light weight can be recovered at an early stage.

  Moreover, according to this foamed resin block body 20 for embankment, since the fitting convex part 25a provided in the support | pillar part 22 and the fitting convex part 25a and the fitting concave part 25b which are mutually connectable are arrange | positioned so that reversal combination is possible, one Two embedding foam resin blocks 20 having a shape can be combined to form a foam resin block 20A for embankment, and can be prevented from slipping to improve stability, and can be made stronger foam resin block 20A for embankment. be able to.

  Furthermore, since the support column 22 has a truncated cone shape integrated with the foamed resin plate 21, the shape is simple, the molding can be easily performed, and the mold necessary for the molding can be easily manufactured at a low cost. .

  Next, another embodiment of the foamed resin block body for embankment according to the present invention will be described in detail with reference to FIG. 4. Description to be omitted.

  FIG. 4 is related to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right sides, (b) is a plan view, and (c) is a bottom view. .

  This foamed resin block body for embankment is a block body for embankment made of synthetic resin foam such as expanded polystyrene used in place of soil or earth and sand when embankment is performed on soft ground, etc. The block body is inverted and arranged on the lower side and overlapped to be used as one embankment block. For example, the vertical and horizontal sizes are 1 m.

In the foamed resin block body 30 for embankment, the groove portion 24 that communicates with the through hole 23 formed in the foamed resin plate 21 of the foamed resin block body 20 for embankment already described is removed. The surface opposite to the surface 22 is a flat surface, and a through hole 23 a is opened as the through portion 23.

  Thereby, the shape of the foamed resin block body 30 for embankment is simplified, the moldability is improved, and the cost is reduced.

  The other structure of the foamed resin block body 30 for embankment is the same as that of the foamed resin block body 20 for embankment.

  When embankment is constructed using the embedding foam resin block body 30 configured as described above, the embedding foam resin block 30A (for 30A, in which the two embedding foam resin block bodies 30 are connected by being inverted. Although not described in FIGS. 3 and 4, a non-woven fabric is provided so as to surround the four side surfaces of the foamed resin block 30 </ b> A for embankment, as necessary. Prepare what you have installed.

  And after performing foundation work, such as excavating the ground which constructs embankment, it lays out so that the foaming resin block 30A for embankment which connected two foaming resin block bodies 30 for embankment may be arranged in order front and rear and right and left.

    These embedding foam resin blocks 30A are piled up to a height at which submergence is expected due to a rise in the level of groundwater or seasonal rainfall or flooding. For example, as shown in FIG. After laying only the steps (two steps of the foamed resin block body 30 for embankment), the usual solid foamed resin block B is stacked on top of it according to the shape of the embankment, and the normal EPS lightweight The embankment is constructed using the connecting fittings with claws used in the embankment method.

  At the time of this construction, the embedding foam resin block body 30 also has a bilaterally symmetrical plane shape, so that it is not necessary to pay attention to the directionality when laying back and forth, and can be laid easily.

  In addition, the embedding foam resin block body 30 also makes a foamed resin block 30A for embankment by abutting a plurality of strut portions 22 provided to protrude from the foam resin plate 21 in a fixed arrangement. The load can be uniformly supported by the portion 22 and a large compressive strength can be ensured with a small cross-sectional area.

  As a result, it is possible to increase the compressive strength and at the same time increase the porosity, so that a porosity of 60 to 65% can be achieved, and buoyancy can be suppressed even in the case of flooding.

  Further, the side of the column portion 22 protruding from the foamed resin plate 21 with respect to the buoyancy is used as a water pouring / drainage channel, and through holes 23a as a plurality of through portions 23 provided in a fixed arrangement on the foamed resin plate 21 are provided. Water can be poured and drained, water can be smoothly poured and drained against sudden water level rise and flooding, buoyancy can be suppressed as much as possible, and water discharge when the water level drops Can be carried out smoothly, and light weight can be recovered early.

  Therefore, if the water level such as the expected groundwater is set below the foamed resin plate 21 of the upper embankment foamed resin block body 30 to combine two, the surface of the foamed resin plate 21 can be laterally moved even if there is no groove. Therefore, the shape can be simplified and the molding can be facilitated, and the cost can be reduced.

  Further, even in the foamed resin block body 30 for embankment, the fitting convex portion 25a and the fitting concave portion 25b provided in the support column portion 22 that can be fitted and connected to each other are arranged so as to be able to be reversed and combined. Two embedding foam resin blocks 30A can be combined into a foam resin block 30A for embankment, and the stability can be improved by preventing slippage, and the foam resin block 30A for embankment can be made stronger. it can.

  Further, since the column portion 22 is formed as a truncated cone shape integrated with the foamed resin plate 21, the shape is simple, the molding can be easily performed, and the mold necessary for the molding can be easily manufactured at a low cost. .

  Next, another embodiment of the foamed resin block body for embankment according to the present invention will be described in detail with reference to FIG. 5. However, the same parts as those in the above-described two embodiments are denoted by the same symbols. The overlapping description is omitted.

  FIG. 5 is related to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right sides, (b) is a plan view, and (c) is a bottom view. .

  This foamed resin block body for embankment is a block body for embankment made of synthetic resin foam such as expanded polystyrene used in place of soil or earth and sand when embankment is performed on soft ground, etc. The block body is inverted and arranged on the lower side and overlapped to be used as one embankment block. For example, the vertical and horizontal sizes are 1 m.

  In the foamed resin block body 40 for embankment, the thickness of the foamed resin plate 41 is increased. For example, the foamed resin block body 41 is about twice as large as the foamed resin board 21 of the embankment foamed resin block bodies 20 and 30 described above.

  Thereby, the strength of the foamed resin block body 40 for embankment is increased.

  Further, in this foamed resin block body 40 for embankment, the shape of the columnar part is a mixture of the truncated cone-shaped columnar part 22 and the truncated pyramid-shaped columnar part 42, and the direction, the central part, the side part, and the corner part are constant. They are arranged in an array.

  That is, a quarter truncated cone support 22c is formed at each corner, and at the center of the side so that the truncated cone and the truncated pyramid alternate from each corner support 22c on each side. One half-conical trapezoidal side support column 22b is formed with two half-pyramidal side support columns 42b on both sides thereof, and four of the nine diagonal positions are pyramid-shaped central support columns in the center. It is formed as 42a, and five pieces including the center are formed as a central post portion 22a having a truncated cone shape.

  Moreover, in this foaming resin block body 40 for embankment, the foaming resin block body 40 for embankment of the same shape is reversed, arrange | positioned on the lower side, and is piled up, and one foaming resin block for embankment (block for embankment) 40A (40A 3 and FIG. 5, although not described in FIG. 3 and FIG. 5, it corresponds to 20A in FIG. A fitting connection portion 45 is provided at the tip of the central support post portion 42a, and includes a fitting convex portion 45a and a fitting concave portion 45b.

  For example, as shown in FIG. 5, the fitting connection portion 45 is formed with a square columnar fitting convex portion 45 a at two diagonal positions among the four central support column portions 42 a in the central portion, and the like. By forming the square cylindrical fitting recess 45b in the two of the two, the embedding concave and convex portion 45a, 45b can be fitted and connected to each other to form one embedding foam resin block (filling block) 40A.

  Similarly, in the case of these fitting connecting portions 45, one or more vertical protrusions are formed on the side surfaces of the fitting concave protruding portions 45a and 45b in parallel with the central axis direction so that they can be firmly connected. Alternatively, one or more horizontal protrusions may be formed along the periphery so that they can be firmly connected.

  In addition, since the structure of the other penetration part 23, the groove part 24, etc. is the same as the foamed resin block body 20 for embankment already demonstrated, description is abbreviate | omitted.

  Since the embankment construction process performed using the embedding foam resin block body 40 configured in this manner is the same as that of the embankment foam resin block body 20 already described, the description thereof is omitted.

  According to the foamed resin block body 40 for embankment, since the foamed resin plate 41 is thickened, rigidity and compressive strength can be further increased.

  Further, the foamed resin block body 40 for embankment also has the same effect as that of the foamed resin block body 20 for embankment described above, but the description thereof is omitted.

  Next, another embodiment of the foamed resin block body for embankment of the present invention will be described in detail with reference to FIG. 6, but the same parts as those of the above-described embodiments are denoted by the same symbols, A duplicate description is omitted.

  FIG. 6 is related to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right sides, (b) is a plan view, and (c) is a bottom view. .

  This foamed resin block body for embankment is a block body for embankment made of synthetic resin foam such as expanded polystyrene used in place of soil or earth and sand when embankment is performed on soft ground, etc. The block body is inverted and arranged on the lower side and overlapped to be used as one embankment block. For example, the vertical and horizontal sizes are 1 m.

  In the foamed resin block body 50 for embankment, the thickness of the foamed resin plate 51 is increased. For example, the foamed resin block body 50 is about twice as large as the foamed resin plate 21 of the embankment foamed resin block bodies 20 and 30 described above. The thickness is the same as the foamed resin block body 40 for embankment.

  Thereby, the rigidity and compressive strength of the foamed resin block body 50 for embankment are made higher.

  Further, in the foamed resin block body 50 for embankment, the shape of the support column is a mixture of the truncated cone-shaped support column 22 and the truncated pyramid-shaped support column 42, and the number is reduced, and each direction, center portion, side surface is reduced. It arrange | positions so that it may become a fixed arrangement | sequence in a part and a corner.

  That is, a quarter-conical corner column support 22c is formed at each corner, and one half-pyramidal side support 42b is formed at the center of each side surface. Five pyramidal trapezoidal central support portions 42a are arranged in a cross shape.

  Therefore, the number of support portions 22, 42 is smaller than the foamed resin block bodies 20, 30, 40 for embankment already described, and the porosity is increased by that amount, thereby reducing buoyancy during submergence. Be able to.

  Further, the through-holes 53 provided through the foamed resin plate 51 are composed of cylindrical through-holes 53a which are larger than the through-holes 23a as the through-holes 23, and four are formed at square vertices at equal intervals. is there.

  Grooves 54a as grooves 54 having the same width as the diameter of the large through-holes 53a are provided in a lattice shape on the side opposite to the support portions 22 and 42 of the foamed resin plate 51, and the ends of the grooves 54 are at the foamed resin plate 51. The bottom surface of the groove 54a is located on and communicates with the through hole 53a.

  Furthermore, as shown in FIG. 6, the fitting connection portion 55 of the foamed resin block body 50 for embankment is provided at two diagonal positions on one of the four central strut portions 42a located around the central portion. The cylindrical fitting convex part 55a is formed, and the cylindrical fitting concave part 55b is formed on the other two, and the foamed resin block body 50 for embankment having the same shape is inverted and arranged on the lower side. Thus, the fitting uneven portions 55a and 55b are fitted and connected to each other to form one embedding foam resin block (banking block) 50A.

  Similarly, in the case of these fitting connection portions 55, one or more vertical protrusions are formed on the side surfaces of the fitting uneven portions 55a and 55b in parallel to the central axis direction so that they can be firmly connected. One or a plurality of horizontal protrusions may be formed along the periphery so that they can be firmly connected.

  Since the embankment construction process performed using the embedding foam resin block body 50 configured as described above is the same as that of the embankment foam resin block body 20 described above, description thereof is omitted.

  According to the foamed resin block body 50 for embankment, since the foamed resin plate 51 is thickened, the rigidity and the compressive strength can be further increased, and the porosity is reduced by the smaller number of the column portions 22 and 42. Large and can further suppress buoyancy during flooding.

  The embedding foam resin block body 50 also has the same effects as the embankment foam resin block body 20 described above, but the description thereof is omitted.

  Next, another embodiment of the foamed resin block body for embankment of the present invention will be described in detail with reference to FIG. 7, but the same parts as those of the above-described embodiments are marked with the same symbols, A duplicate description is omitted.

  7A and 7B show an embodiment of the foamed resin block body for embankment according to the present invention, in which FIG. 7A is a front view identical to the back and left and right side surfaces, FIG. 7B is a plan view, and FIG. .

  This foamed resin block body for embankment is a block body for embankment made of synthetic resin foam such as expanded polystyrene used in place of soil or earth and sand when embankment is performed on soft ground, etc. The block body is inverted and arranged on the lower side and overlapped to be used as one embankment block. For example, the vertical and horizontal sizes are 1 m.

  In the foamed resin block body 60 for embankment, the cross-sectional shape and the number of the pillar portions 62 that are integrally formed by projecting a plurality of the planar shapes of a rectangular, for example, square foamed resin plate 61 in a fixed arrangement are different, and the through portions 63 has a different shape and number.

  For example, the column portion 62 is provided with 16 square pyramid-shaped central column portions 62a at regular intervals at the center portion, and four side column portions 62b each having a half cross section on the side surface portion. One corner post 62c having a quarter cross section is provided at each of the four corners, and each column 62a, 62b, 62c has a square outline and 5 squares at the center. It is arranged at the intersection of lattices by equally dividing lines to form a fixed array.

  In addition, even when the embedding foam resin block bodies 60 are arranged in the left and right and front and rear directions, it is possible to maintain a certain arrangement of the support columns 62 including the adjacent embedding foam resin block bodies 60. is there.

  The size of the support 62 is about 60 to 65% with respect to a solid made of the square of the foam resin plate 61 and the height (total height) of the foam resin plate 61 and the support 62. As described above, the size of the base end portion and the tip end portion of the quadrangular pyramid is determined.

  In this way, by increasing the number of support columns 62, the load applied to the embedding foam resin block body 60 can be more uniformly dispersed.

  Also, a plurality of through portions 63 penetrating the front and back of the foam resin plate 61 of the embedding foam resin block body 60 are provided in a portion that does not overlap with the support column 62 in a fixed arrangement, and is constituted by a rectangular cylindrical through hole 63a. The struts 62 (62a, 62b, 62c) are formed at 25 intersections of lines connecting the centers of the struts 62 (62a, 62b, 62c) so that they do not overlap with the struts 62. It is arranged in a certain arrangement.

  In addition, even when the embedding foam resin block bodies 60 are arranged side by side, the definite arrangement of the through-holes 63 can be maintained including the adjacent embedding foam resin block bodies 60. is there.

  Further, the groove portion 64 communicating with the penetrating portion 63 formed on the surface of the foamed resin block 61 on the opposite side to the support portion 62 of the foamed resin block body 60 for embankment is constituted by a groove 64a having a rectangular cross section. The bottom surface is located on the through hole 63 a and the end of the groove 64 a is open at the outer end of the foamed resin plate 61.

  And such a groove part 64 is arrange | positioned in the grid | lattice form parallel to the external shape line of the foamed resin board 61, and is formed in the grid | lattice form 5 each vertically and horizontally.

  Thereby, the flowability of water on the foamed resin plate 61 of the foamed synthetic resin block body 60 for embankment can be further enhanced.

  In the embedding foam resin block body 60, the embedding foam resin block body 60 having the same shape is reversed and disposed on the lower side, and the embedding foam resin block body 60 is stacked on the embankment foam resin block body 60. Similarly, a fitting connecting portion 25 for preventing a shift when the foamed resin block (filling block) is provided is provided, and a cylindrical fitting convex portion 25a is provided at each of two diagonal positions of the central support column portion 62a. It is formed as a cylindrical fitting recess 25b.

  Since the embankment construction process performed using the embankment foam resin block body 60 configured in this manner is the same as that of the embankment foam resin block body 20 already described, the description thereof is omitted.

  According to the embedding foam resin block body 60, by increasing the number of support portions 62, the load applied to the embedding foam resin block body 60 can be more uniformly dispersed, and the through holes 63a and the grooves 64a can be dispersed. Thereby, the flowability of the water on the foamed resin plate 61 can be further enhanced.

  The embedding foam resin block body 60 also has the same effects as the embankment foam resin block body 20 described above, but the description thereof is omitted.

  Next, another embodiment of the foamed resin block body for embankment according to the present invention will be described in detail with reference to FIG. 8, but the same parts as those of the above-described embodiments are denoted by the same symbols, A duplicate description is omitted.

  FIG. 8 is related to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right sides, (b) is a plan view, and (c) is a bottom view. .

  This foamed resin block body for embankment is a block body for embankment made of synthetic resin foam such as expanded polystyrene used in place of soil or earth and sand when embankment is performed on soft ground, etc. The block body is inverted and arranged on the lower side and overlapped to be used as one embankment block. For example, the vertical and horizontal sizes are 1 m.

  In the foamed resin block body 70 for embankment, the cross-section of the column portion 72 is formed by integrally forming a foamed resin plate 71 having a rectangular planar shape, for example, a square foamed resin plate 71 and projecting a plurality of pieces in a fixed arrangement. The shape and number are different, and the shape and number of the through-holes 73 are changed.

  For example, four columnar-shaped central columnar portions 72a are provided at regular intervals at the central portion, and two lateral columnar portions 72b each having a half plane cross section are disposed at regular intervals on the side surface portion. Are provided, with one corner post 72c having a quarter cross-section at each of the four corners, and the center of each post 72a, 72b, 72c is a square outline and a square 3 etc. Arranged at the intersections of the grids by the dividing lines to form a fixed array.

  In addition, even when the embedding foam resin block bodies 70 are arranged in the left and right and front and rear directions, a constant arrangement including the adjacent embedding foam resin block bodies 70 can be maintained. is there.

  The size of the column 72 is such that the void ratio is about 60 to 65% with respect to a solid formed by the square of the foamed resin plate 71 and the height (total height) of the foamed resin plate 71 and the column 72. In addition, the size of the large diameter portion of the base end and the small diameter portion of the tip of the truncated cone is determined.

  Thus, by increasing the thickness of the foamed resin plate 71 and reducing the number of support columns 72, the composition of the foamed resin block body 60 for embankment can be enhanced, and the compressive strength can be increased.

  In addition, a plurality of through portions 73 penetrating the front and back of the foamed resin block 71 of the embedding foam resin block body 70 are provided in a portion that does not overlap with the support column 72 in a fixed arrangement, and is constituted by a rectangular cylindrical through hole 73a. In addition, by forming at nine points of intersections of lines connecting the centers of the column parts 72 (72a, 72b, 72c), they do not overlap the column part 72 but are arranged in a zigzag pattern with respect to the center of the column part 72. Is a fixed array.

  It should be noted that the fixed arrangement of the penetrating portions 73 can also be maintained even when the embedding foam resin block bodies 70 are arranged side by side, front and rear, including the adjacent embedding foam resin block bodies 70. is there.

  Further, the groove 74 that communicates with the through-hole 73 formed on the surface of the foamed resin block body 70 on the opposite side of the support 72 of the foamed resin plate 71 is constituted by a groove 74a having a rectangular cross section. The bottom surface is located on the through hole 73 a and the end of the groove 74 a is open at the outer end of the foamed resin plate 71.

  Then, such groove portions 74 are arranged in a lattice shape parallel to the outline of the foamed resin plate 71, and three grooves 74 are formed vertically and horizontally.

  Also, in this foamed resin block body 70 for embankment, one embankment can be obtained by inverting the foamed resin block body 70 having the same shape and placing it on the lower side and stacking this foamed resin block body 70 on the embankment. The fitting connection part 25 which prevents the shift | offset | difference at the time of setting it as the foaming resin block (filling block) is similarly provided, and the column-shaped fitting convex part 25a and two at the diagonal position of the center support | pillar part 72a are respectively provided. It is formed as a cylindrical fitting recess 25b.

  Since the embankment construction step performed using the embedding foam resin block body 70 configured in this manner is the same as that of the embankment foam resin block body 20 already described, the description thereof is omitted.

  According to the foamed resin block body 70 for embankment, by increasing the thickness of the foamed resin plate 71 and reducing the number of support columns 72, the rigidity of the foamed resin block body 70 for embankment can be increased and the compressive strength can be increased. it can.

  The embedding foam resin block body 70 has the same effects as the embankment foam resin block body 20 described above, but the description thereof is omitted.

  As described above in detail with each embodiment, the foamed resin block body for embankment of the present invention includes the shape and thickness of the foamed resin plate, the cross-sectional shape and number of support columns, and the shape and number of penetrating portions. As for the number and depth of the groove portions, those described in the above embodiment can be used individually or in combination, and the shape and number are not limited to these. You can also.

It is applied to one Embodiment of the foaming resin block body for embankment of this invention, (a) is the perspective view seen from upper direction, (b) is the perspective view seen from the downward direction. It is applied to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right side, (b) is a plan view, (c) is a bottom view. It is explanatory drawing at the time of constructing embankment using one embodiment of the foamed resin block body for embankment of this invention, using the foamed resin block body for embankment. It is applied to other embodiment of the foamed resin block body for embankment of this invention, (a) is the same front view as a back surface and a left-right side surface, (b) is a top view, (c) is a bottom view. It is applied to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right side, (b) is a plan view, (c) is a bottom view. It is applied to other embodiment of the foamed resin block body for embankment of this invention, (a) is the same front view as a back surface and a left-right side surface, (b) is a top view, (c) is a bottom view. It is applied to one embodiment of the foamed resin block body for embankment of the present invention, (a) is the same front view as the back and left and right side, (b) is a plan view, (c) is a bottom view. It is applied to other embodiment of the foamed resin block body for embankment of this invention, (a) is the same front view as a back surface and a left-right side surface, (b) is a top view, (c) is a bottom view. It is the bottom view and sectional drawing of the conventional embankment material. It is a perspective view of the conventional foaming resin block for embankments. It is the upper surface perspective view and bottom face perspective view of the conventional foaming resin molding.

Explanation of symbols

20, 30, 40, 50, 60, 70 Embankment foam resin blocks 21, 41, 51, 61, 71 Foamed resin plates 22, 42, 62, 72 Column portions 22a, 42a, 62a, 72a Central column portions 22b, 42b, 62b, 72b Side column portions 22c, 42c, 62c, 72c Corner column portions 23, 53, 63, 73 Through portions 23a, 53a, 63a, 73a Through holes 24, 54, 64, 74 Groove portions 24a, 54a, 64a , 74a Grooves 25, 45, 55 Fitting connecting portions 25a, 45a, 55a Fitting convex portions 25b, 45b, 55b Fitting concave portions 20A, (30A, 40A, 50A) Filling foam resin block B Solid foam resin block

Claims (3)

It is a foamed resin block body that constitutes a foamed resin block for embankment by inverting each other,
A frustoconical shape having a truncated cone shape or a truncated pyramid shape having a quarter cross-section of a flat cross section is provided at the four corners of the foamed resin plate, and the side cross section of the foamed resin plate has a half flat cross section. Alternatively, a truncated pyramid-shaped side column portion is provided to protrude, and a truncated cone-shaped or truncated pyramid-shaped central column portion is provided to protrude at the center of the foamed resin plate. and a central strut portion constitutes a plurality of struts as a constant sequence, fill foam resin which is characterized by comprising a plurality of through portions at a constant sequence on the foamed resin sheet portion where the strut is not provided Block body.   2. The foamed resin for embankment according to claim 1, wherein a groove portion that communicates with the penetrating portion is provided on the surface of the foamed resin plate opposite to the support portion at an outer end portion of the foamed resin plate. Block body.   3. A foamed resin block body for embankment according to claim 1 or 2, wherein a fitting convex portion and a fitting concave portion, which can be fitted and connected to each other, are arranged on the support column so as to be able to be reversed and combined. .

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