Reinforcement plate for block pavement, block pavement method and block pavement structure

Abstract

To provide a reinforcement plate for block pavement, a block pavement method, and a block pavement structure, which allow rainwater to penetrate into the ground, can prevent mud stains from occurring on the surface, can enhance the persistence of water permeability, facilitates maintenance, and can prevent slippage of pavement blocks and deterioration in function of the reinforcement plate due to mud.SOLUTION: A reinforcement plate for block pavement is constituted by a base plate on which blocks for pavement can be placed on a top surface, joint plates that are provided in an erected state on the top surface of the base plate, and a mud prevention plate that is provided on a bottom surface of the base plate and prevents muddy water from entering at least around a central portion of the base plate.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a block paving method, a block paving structure, and paving blocks for paving roads and the like.

Background Art

[0002] The main purpose of permeable block paving is to prevent water pooling due to rainwater in block paving. For example, when designing a gentle drainage gradient for a sidewalk out of consideration for wheelchair users, the drainage becomes poor and water pooling occurs. To prevent this water pooling, permeable block paving is to provide permeable holes on the block surface and allow rainwater to penetrate into the ground.

[0003] As such a block paving method, for example, "a roadbed forming step of forming a roadbed layer and then forming a sand cushion layer on the upper part of the roadbed layer, and after this roadbed forming step, using a reinforcing plate composed of a base plate located at the bottom surface of the left and right blocks and a joint plate located between the left and right blocks provided on the base plate to lay the blocks, a block laying step, and at the same time or after this block laying step, a joint sand filling step of filling joint sand into the joint portions between the laid blocks" is known (Patent Document 1).

[0004] However, in such a block paving method, it is possible to quickly allow rainwater to penetrate into the ground from the permeable holes for a certain period after construction. However, there is a drawback that mud gradually accumulates in the permeable holes, causing clogging and preventing water penetration. Since this mud accumulates gradually from the bottom surface side of the blocks, when the surface is covered with mud, mud accumulates throughout the permeable blocks, and only a small amount of drainage can be achieved from the joint portions.

[0005] Furthermore, in the conventional method, since joint sand was filled in the joints, the joint sand often flew into the permeable holes during the joint sand filling step. As a result, there were problems such as accelerating the clogging of mud, deteriorating the permeable performance at an early stage, and accelerating the soiling of the block surface.

[0006] In addition, mud clogging the drainage holes causes discoloration of the surrounding area, marring the scenery, so when repair work is carried out, rather than just repairing the puddles locally, a full repair must be carried out to avoid the discoloration, resulting in expensive repair costs.

[0007] A block paving method is also known in which the joints are not filled with sand and water is allowed to seep through. However, even when such a block paving method is used, there is a risk that mud may cause the paving blocks to slide sideways or get into the bottom of the reinforcing plates, reducing the functionality of the reinforcing plates. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 9-53201 Summary of the Invention [Problem to be solved by the invention]

[0009] In view of the above-mentioned conventional drawbacks, the present invention aims to provide a reinforcing plate for block paving, a block paving method, and a block paving structure that can allow rainwater to permeate into the ground, prevent mud stains on the surface, increase the sustainability of water permeability, and facilitate maintenance, and prevent the paving blocks from sliding sideways due to mud and the functionality of the reinforcing plate from being deteriorated. [Means for solving the problem]

[0010] In order to achieve the above-mentioned object, the reinforced plate for block paving described in claim 1 of the present invention is characterized in that it is composed of a base plate on which a paving block can be placed, a joint plate provided in an upright state on the upper surface of the base plate, and a mud prevention plate provided so as to protrude downward from the bottom surface of the base plate and which prevents muddy water from entering at least near the center of the base plate.

[0011] The mud prevention plate of the block paving reinforcing plate described in claim 2 is characterized in that it is provided so as to surround the entire bottom surface of the base plate.

[0012] The mud prevention plate of the block paving reinforcing plate described in claim 3 is characterized in that it is provided so as to surround the vicinity of the center of the base plate.

[0013] The mud prevention plate of the block paving reinforcing plate described in claim 4 is characterized in that it is formed to a height of 2.5 mm or more and 20 mm or less.

[0014] The block paving method of the present invention described in claim 5 is composed of a roadbed layer formation step of forming a roadbed layer on top of a filter layer, a sand cushion layer formation step of forming a sand cushion layer on top of the roadbed layer, and a block laying step of placing a plurality of block paving reinforcing plates on top of the sand cushion layer and laying a plurality of paving blocks on the upper surface of the block paving reinforcing plates, each separated by a joint portion. The block paving reinforcing plate is composed of a base plate on which the paving blocks can be placed, a joint plate provided in an upright state on the upper surface of the base plate, and a mud prevention plate provided so as to protrude downward from the bottom surface of the base plate and preventing muddy water from entering at least near the center of the base plate. The paving blocks are characterized in that a non-permeable layer is formed near the upper surface, including the upper surface, and a permeable layer through which rainwater can pass is formed in the area excluding the non-permeable layer.

[0015] The block paving method according to claim 6 is characterized in that the mud prevention plate is provided so as to surround the entire bottom surface of the base plate.

[0016] The block paving method according to claim 7 is characterized in that the mud prevention plate is provided so as to surround the central portion of the base plate.

[0017] The block paving method according to claim 8 is characterized in that the mud prevention plate is formed to a height of 2.5 mm or more and 20 mm or less.

[0018] The block paving structure of the present invention described in claim 9 is composed of a filter layer, a roadbed layer formed on the top of the filter layer, a sand cushion layer formed on the top of the roadbed layer, a plurality of paving blocks arranged on the upper surface of the sand cushion layer via a block paving reinforcing plate, and joints formed between the plurality of paving blocks, wherein the block paving reinforcing plate is composed of a base plate on which the paving blocks can be placed, a joint plate arranged in an upright state on the upper surface of the base plate, and a mud prevention plate arranged so as to protrude downward from the bottom surface of the base plate and which prevents muddy water from entering at least near the center of the base plate, and wherein the paving blocks have a non-permeable layer formed near their upper surface including their upper surface, and a permeable layer through which rainwater can pass is formed in the area excluding the non-permeable layer.

[0019] The mud guard plate of the block paving structure described in claim 10 is arranged so as to surround the entire bottom surface of the base plate.

[0020] The mud guard plate of the block paving structure described in claim 11 is arranged so as to surround the central portion of the base plate.

[0021] The mud guard plate of the block paving structure described in claim 12 is formed to a height of 2.5 mm or more and 20 mm or less. Effect of the Invention

[0022] As is clear from the above description, the present invention provides the following effects. (1) In each of the inventions described in claims 1, 5 and 9, a mud prevention plate protruding downward is provided on the bottom surface of the base plate, thereby preventing muddy water from entering near the center, preventing a decrease in the functionality of the block paving reinforcing plate, and preventing the paving blocks from sliding sideways. (2) In each of the inventions described in claims 2 to 4, claims 6 to 8, and claims 10 to 12, the same operational effects as those in (1) can be obtained, and it is possible to more reliably prevent muddy water or the like from entering the vicinity of the bottom center of the base plate. (3) In each of the inventions described in claims 5 and 9, an impermeable layer is formed near the upper surface of the paving block, and a permeable layer through which rainwater can pass is formed in a portion excluding the impermeable layer. Therefore, by changing the conventional surface permeation method to a new side permeation method, rainwater can be reliably permeated into the sand cushion layer or the like through the joint portion. (4) Further, since an impermeable layer is formed near the upper surface of the paving block, it is possible to prevent the surface (upper surface) of the paving block from being discolored by muddy water or the like. Therefore, it is possible to prevent the occurrence of mud stains on the surface, and the paving blocks can be easily maintained, such as by replacement. (5) Since there is no need to consider the landscape, the water permeation holes can be enlarged, and the water permeability can be enhanced by allowing water to permeate from the side surface of the permeable layer. (6) By providing an impermeable layer near the upper surface of the paving block, various surface finishes can be applied. Therefore, the aesthetics can be improved when laid. (7) Since the joint portion is not filled with joint sand, rainwater containing mud components on the paving surface can quickly flow into the joint, suppressing dirt such as mud puddles on the block surface. (8) Further, the muddy water flowing into the joint quickly flows out and is drained to the paving base through the water permeation holes at the bottom of the joint and on the side surface of the permeable layer, and the mud components accumulating in the joint are drained through the water permeation holes in the block base layer until they accumulate to the required height (depth) of the joint. Therefore, the water permeability can be maintained for a long period (nearly 10 times that of the conventional one).

Brief Description of the Drawings

[0023] Figs. 1 to 10 are explanatory diagrams showing the first embodiment of the present invention. Figs. 11 to 15 are explanatory diagrams showing the second embodiment of the present invention. 16 to 20 are explanatory diagrams showing a third embodiment of the present invention. [Figure 1] FIG. 1 is a process diagram of the block paving method of the first embodiment. [Diagram 2] Schematic cross-sectional view of a block paving structure of the first embodiment. [Diagram 3] FIG. 4 is an explanatory diagram of a roadbed layer forming process according to the first embodiment. [Figure 4] FIG. [Diagram 5] An explanatory diagram of the block laying process. [Figure 6] FIG. 1 is an explanatory perspective view of a reinforcing plate for block paving according to a first embodiment. [Figure 7] Cross-sectional view taken along line 7-7 in Figure 6. [Figure 8] Bottom view of reinforced plate for block paving. [Figure 9] FIG. [Figure 10] FIG. 1 is an explanatory diagram showing the flow of rainwater after a certain amount of muddy water has accumulated. [Figure 11] FIG. 11 is a process diagram of the block paving method of the second embodiment. [Figure 12] Schematic cross-sectional view of a block paving structure of the second embodiment. [Figure 13] FIG. 11 is an explanatory perspective view of a reinforcing plate for block paving according to a second embodiment. [Figure 14] Cross-sectional view taken along line 14-14 in Figure 13. [Figure 15] Bottom view of reinforced plate for block paving. [Figure 16] FIG. 11 is a process diagram of the block paving method of the third embodiment. [Figure 17] Schematic cross-sectional view of a block paving structure of the third embodiment. [Figure 18] FIG. 11 is an explanatory perspective view of a reinforcing plate for block paving according to a third embodiment. [Figure 19] Cross-sectional view taken along line 19-19 in Figure 18. [Figure 20] Bottom view of reinforced plate for block paving. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings.

[0025] In the first embodiment for carrying out the present invention shown in Figs. 1 to 10, reference numeral 1 denotes a block paving method used for paving roads and the like.

[0026] As shown in Figure 1 (see also Figure 2), this block paving method 1 is composed of a roadbed layer formation process 4 in which a roadbed layer 3 is formed on top of a filter layer 2, a sand cushion layer formation process 6 in which a sand cushion layer 5 is formed on top of the roadbed layer 3, and a block laying process 10 in which a plurality of block paving reinforcing plates 7 are arranged approximately horizontally on top of the sand cushion layer 5, and a plurality of paving blocks 8 are laid on the upper surface of the block paving reinforcing plates 7, each separated by a joint portion 9.

[0027] Furthermore, the block paving structure 17 of the present invention formed through such a process is composed of a filter layer 2, a roadbed layer 3 formed on the top of the filter layer 2, a sand cushion layer 5 formed on the top of the roadbed layer 3, a plurality of paving blocks 8 arranged on the top surface of the sand cushion layer 5 via a block paving reinforcing plate 7, and joint portions 9 formed between each of the plurality of paving blocks 8, as shown in Figure 2.

[0028] The roadbed layer forming step 4 is a step of forming a roadbed layer 3 on top of a filter layer 2 formed of sand or the like on the top of a roadbed or road body, for example, as shown in FIG.

[0029] In this embodiment, the roadbed layer 3 is formed using crushed stone (crushed run) that is made by simply breaking rocks or boulders used in interlocking block paving with a crusher and not screening them.

[0030] In the sand cushion layer forming step 6, as shown in Fig. 4, for example, a sand cushion layer 5 is formed on the roadbed layer 3 using block paving sand. Incidentally, a water-permeable sheet or the like may be provided between the sand cushion layer 5 and the roadbed layer 3.

[0031] In this embodiment, the block laying process 10 is a process in which a plurality of block paving reinforcing plates 7 of the present invention are arranged horizontally at a predetermined interval on top of the sand cushion layer 5, and a plurality of paving blocks 8 are laid on the base plate 11, as shown in Figure 5, for example.

[0032] The block paving reinforcing plate 7 of the present invention is made of metal, resin, etc. In this embodiment, it is made of resin and is placed on the upper surface of the sand cushion layer 5 as shown in Figure 5. Thus, as shown in Figures 6 to 8, the block paving reinforcing plate 7 is composed of a base plate 11 on which a paving block 8 can be placed, a joint plate 12 provided in an upright state on the upper surface of the base plate 11, and a mud prevention plate 13 provided on the bottom surface of the base plate 11 so as to protrude downward, which prevents muddy water from entering at least the center of the bottom of the base plate 11 and prevents the paving block 8 from skidding.

[0033] In addition, the base plate 11 is, for example, a rectangular or square plate with rounded corners, and has arc-shaped cutouts symmetrically formed in the left-right and front-rear center portions. The joint plates 12 are erected in a substantially vertical state, and consist of a +-shaped central joint plate 12a located substantially in the center of the base plate 11, and a total of four plate-shaped joint plates 12b located diagonally at a predetermined distance from the central joint plate 12a.

[0034] The paving blocks 8 are placed on the left and right sides of the base plate 11 via joint plates 12 of the block paving reinforcing plate 7, and the joints 9 are formed by the joint plates 12. The thickness of the joint plate 12 is usually about 3 mm, and this thickness is the width dimension of the joints 9.

[0035] In other words, the block paving reinforcing plate 7 of the present invention is a block paving reinforcing plate 7 consisting of a joint plate 12 for ensuring joint width and a base plate 11 for preventing steps and wobbling, in which a mud prevention plate 13 is installed under the bottom surface of the base plate 11 for the purpose of preventing mud that has newly accumulated in the joints or that has accumulated from the joints through the permeable base layer to the bottom of the paving blocks 8 from slipping sideways or penetrating under the base plate 11 of the block paving reinforcing plate 7 and reducing the functionality of the block paving reinforcing plate 7.

[0036] In this embodiment, the base plate 11 is formed in a shape that is approximately rectangular in plan view, with the center of each side cut out in an arc shape. Note that the shape of the base plate 11 is not limited to this shape, and it may be any shape that has a joint plate 12 on the upper surface and allows the paving blocks 8 to be placed thereon.

[0037] As described above, in this embodiment, the joint board 12 having the required thickness and length is composed of a central joint board 12a which is cross-shaped in a plan view, and a plurality of (e.g., four) end joint boards 12b which are rectangular in a plan view and each are arranged at a predetermined interval on an extension line in the intersecting direction of this central joint board 12a, and the corners of the paving block 8 are in abutment with the corners of the central joint board 12a which is cross-shaped in a plan view, and the paving block 8 is installed in a state in which it abuts against the corners of the central joint board 12a which is cross-shaped in a plan view, and its periphery abuts against the joint board 12.

[0038] In this embodiment, as shown in Fig. 7, the mud guard plate 13 is formed in a downward ring shape around the entire outer periphery of the bottom surface of the base plate 11, and serves as a peripheral wall (downward surrounding wall) that surrounds the entire bottom surface. The downward surrounding wall is formed to a height of 2.5 mm to 20 mm.

[0039] The mud prevention plate 13 is shaped to surround a part or all of the circumference or the center of the bottom surface of the base plate 11 in order to prevent mud from entering under the central joint plate 12a of the block paving reinforcing plate 7 and to strengthen the engagement between the block paving reinforcing plate 7 and the laid sand. In this embodiment, it is formed on the entire outer periphery of the bottom surface of the base plate 11. In order to fill the gaps formed by the maximum 5 mm particles in the laid sand, and to utilize the maximum 5 mm particles to prevent the block paving reinforcement plate 7 from slipping, the height of the mud prevention plate 13 is made to be at least 2.5 mm, which corresponds to 1 / 2 of a 5 mm particle, and not more than 20 mm, which corresponds to the minimum thickness of the laid sand.

[0040] By providing such a mud prevention plate 13, the upper surface of the sand cushion layer 5 and the block paving reinforcing plate 7 are fitted together well, and even if mud or the like flows into the upper surface of the sand cushion layer 5 and a load is applied to the paving blocks 8, the paving blocks 8 can be prevented from skidding.

[0041] In addition, since the mud prevention plate 13 is provided as a peripheral wall protruding downward from the bottom of the base plate 11, mud does not penetrate to the center of the block paving reinforcing plate 7, which prevents the upper surface of the sand cushion layer 5 from becoming muddy with mud and the block paving reinforcing plate 7 from sinking downward or bending, thereby reducing the functionality of the block paving reinforcing plate 7.

[0042] As shown in Figure 7, for example, the paving block 8 is composed of a non-permeable layer 14 formed near the upper surface, including the upper surface, of the paving block 8, and a permeable layer 15 formed in an area other than the non-permeable layer 14 (the lower surface side of the non-permeable layer 14) and through which rainwater can pass from areas other than the non-permeable layer 14.

[0043] In this embodiment, the impermeable layer 14 is a plate-shaped cement mortar that can be economically and rationally formed to a thickness of about 5% to 20% of the upper side of the paving blocks 8, and is provided above the permeable layer 15. This impermeable layer 14 is formed on the upper surface located at the top when the paving blocks 8 are laid.

[0044] This non-permeable layer 14 may be made of any material that does not allow water to pass through, and in addition to cement mortar and stone, other materials such as resin and metal can be used, but it is preferable to use cement mortar, which can be formed economically and rationally.

[0045] By providing such a solid non-permeable layer 14 on the upper surface of the paving block 8, the freedom in surface processing is increased, and the surface finish and material can be selected in the same way as for ordinary blocks that do not allow water to pass through, improving the aesthetic appearance. Specifically, by providing the surface with dense cement mortar like natural stone (stone material) or brick, which is resistant to dirt, the appearance of the road surface can be improved. In addition, a permeable layer 15 with many gaps (mud water infiltration holes 15a) is formed below the non-permeable layer 14, which increases the permeability, makes the block lighter than ordinary blocks, and makes construction easier.

[0046] In this embodiment, the permeable layer 15 through which rainwater can pass is formed into a block shape such as a rectangular parallelepiped by bonding aggregate 16 such as gravel, crushed stone, and sand from which fine sand has been removed. This water permeable layer 15 preferably has muddy water infiltration holes 15a large enough to allow muddy water to pass through, and the muddy water infiltration holes 15a are preferably formed to have a size of 75 μm or more.

[0047] In addition, when the muddy water penetration holes 15a are nearly circular, the diameter may be within this range. When the muddy water penetration holes are elliptical, polygonal, or other shapes, the narrowest part of each muddy water penetration hole 15a is formed to be 75 μm or more.

[0048] In addition, in this embodiment, the muddy water infiltration holes 15a are formed by gaps between the aggregates 16, and the gaps between the aggregates 16 are formed to be gaps large enough for muddy water to pass through, forming the muddy water infiltration holes 15a. Note that, although it is desirable for the permeable layer 15 to have holes (muddy water infiltration holes 15a) large enough for muddy water to pass through, permeable holes large enough for only rainwater to pass through may also be used.

[0049] By having such a permeable layer 15 on the underside of the paving blocks 8, as shown in Fig. 8, not only rainwater but also muddy water does not permeate from the upper surface of the impermeable layer 14 to the lower surface, but flows, for example, from the center of the upper surface to the edge of the upper surface and flows into the joints (gaps) 9 formed between adjacent paving blocks 8. Therefore, almost all of the rainwater and muddy water temporarily stored on the upper surface of the impermeable layer 14 can permeate to the underside of the paving blocks 8 through the joints (gaps) 9.

[0050] In particular, in the present invention, the joints 9 are left empty without any sand being filled in, so that rainwater (water, muddy water) flows in quickly and is less likely to accumulate on the surface of the paving blocks 8 or the pavement surface, thereby maintaining the appearance.

[0051] Additionally, rainwater that flows in is initially drained through the bottom of the joints 9 and the permeable holes (mud water infiltration holes 15a) in the lower parts of the sides of the paving blocks 8. Over time, mud accumulates at the bottom of the joints 9, but rainwater continues to seep through the sides of the paving blocks 8. As more mud accumulates in the joints 9, the rainwater is drained through the permeable holes in the upper parts of the sides of the paving blocks 8, achieving long-term permeability.

[0052] Thus, a sand cushion layer 5 is disposed on the bottom side of the paving blocks 8, and mud that cannot flow into this sand cushion layer 5 gradually accumulates from below inside the paving blocks 8. In this way, the muddy water can be allowed to permeate into the paving blocks 8, and a certain amount of muddy water can be allowed to accumulate inside the paving blocks 8, so that the amount of muddy water (mud) flowing into the joints 9 can be minimized, and clogging of the joints 9 can be prevented.

[0053] On the other hand, since only the dense impermeable layer 14 is visible in the area visible from the sidewalk, etc., even if muddy water accumulates inside the paving block 8, the paving block 8 will not discolor, as shown in Figure 9.

[0054] This eliminates the need for replacement or repair work over a long period of time, reducing maintenance costs.

[0055] Even if mud from muddy water accumulates inside the paving blocks 8 after long-term use and the drainage speed slows down, the paving blocks 8 do not discolor, so the scenery is not marred, and the drainage speed can be restored by replacing only the paving blocks 8 whose drainage speed has slowed down or removing the mud.

[0056] Furthermore, even if muddy water accumulates on the paving blocks 8, the mud prevention plate 13 provided on the block paving reinforcing plate 7 can prevent the muddy water from entering the bottom of the block paving reinforcing plate 7, thereby preventing a decrease in the functionality of the block paving reinforcing plate 7 and reliably preventing the block paving reinforcing plate 7 and the paving blocks 8 from skidding. [Different modes for carrying out the invention] Next, different embodiments for carrying out the present invention will be described with reference to Figures 11 to 20. In describing these different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are designated by the same reference numerals and redundant description will be omitted.

[0057] The second form for carrying out the present invention shown in Figures 11 to 15 mainly differs from the first form for carrying out the present invention in that a block paving reinforcement plate 7A is used in which a mud prevention plate 13A is formed to surround the bottom center of the base plate 11, and the block paving method 1A and block paving structure 17A which carry out a block laying step 10A using such a block paving reinforcement plate 7A can also obtain the same effects as the first form for carrying out the present invention.

[0058] The second form for carrying out the present invention shown in Figures 16 to 20 differs mainly from the first form for carrying out the present invention in that a block paving reinforcement plate 7B is used in which a mud prevention plate 13B is formed so as to surround approximately 2 / 3 of the base plate 11, centered around the corners of the base plate 11; therefore, a block paving method 1B or block paving structure 17B which carries out a block laying process 10B using such a block paving reinforcement plate 7B can achieve the same effect as the first form for carrying out the present invention. In addition, even if the mud prevention plate 13B is formed in the shape of a peripheral wall with a portion broken off, as in this embodiment, mud can be prevented from entering near the center of the bottom of the base plate 11, and the same effect as the first embodiment for implementing the present invention can be obtained.

[0059] In this way, the shape of the mud prevention plate 13 may be any shape that can prevent mud from entering at least near the center of the bottom of the base plate 11, such as a peripheral wall that surrounds the center or outer periphery of the bottom of the base plate 11, or a partially broken peripheral wall. [Industrial Applicability]

[0060] The present invention finds application in the block paving industry. [Explanation of symbols]

[0061] 1, 1A, 1B: Block paving method, 2: Filter layer, 3: roadbed layer, 4: roadbed layer formation process, 5: Sand cushion layer; 6: Sand cushion layer forming step; 7, 7A, 7B: Reinforced plate for block paving, 8: Paving block, 9: Joint section, 10, 10A, 10B: Block laying process, 11: base plate, 12: joint plate, 13, 13A, 13B: Mud prevention plate, 14: non-permeable layer, 15: permeable layer, 16: Aggregate, 17, 17A, 17B: Block paving structure.

Claims

1. This reinforced plate for block paving is composed of a base plate on which a paving block can be placed, a joint plate provided in an upright state on the upper surface of the base plate, and a mud prevention plate provided so as to protrude downward from the bottom surface of the base plate and which prevents muddy water from entering at least near the center of the base plate.

2. The reinforcing plate for block paving according to claim 1, characterized in that the mud prevention plate is provided so as to surround the entire bottom surface of the base plate.

3. The block paving reinforcement plate according to claim 1, characterized in that the mud prevention plate is provided so as to surround the vicinity of the center of the base plate.

4. The reinforced plate for block paving according to any one of claims 1 to 3, characterized in that the mud guard plate is formed to a height of 2.5 mm or more and 20 mm or less.

5. The method includes a roadbed layer forming step of forming a roadbed layer on the top of the filter layer, a sand cushion layer forming step of forming a sand cushion layer on the top of the roadbed layer, and a block laying step of arranging a plurality of block paving reinforcement boards on the top of the sand cushion layer and laying a plurality of paving blocks on the top surface of the block paving reinforcement boards with joints between them. The block paving reinforcement plate is composed of a base plate on which the paving block can be placed, a joint plate provided in an upright state on the upper surface of the base plate, and a mud prevention plate provided so as to protrude downward from the bottom surface of the base plate and which prevents muddy water from entering at least near the center of the base plate. The block paving method includes forming a non-permeable layer on the upper surface and vicinity of the upper surface of the paving block, and forming a permeable layer through which rainwater can pass in the area excluding the non-permeable layer.

6. The block paving method according to claim 5, characterized in that the mud prevention plate is provided so as to surround the entire bottom surface of the base plate.

7. 6. The block paving method according to claim 5, wherein the mud prevention plate is provided so as to surround the central portion of the base plate.

8. 8. A block paving method according to claim 5, wherein the mud guard plate is formed to a height of 2.5 mm or more and 20 mm or less.

9. The paving method comprises a filter layer, a roadbed layer formed on the upper part of the filter layer, a sand cushion layer formed on the upper part of the roadbed layer, a plurality of paving blocks arranged on the upper surface of the sand cushion layer via a block paving reinforcing plate, and joints formed between the plurality of paving blocks, The block paving reinforcement plate is composed of a base plate on which the paving block can be placed, a joint plate provided in an upright state on the upper surface of the base plate, and a mud prevention plate provided so as to protrude downward from the bottom surface of the base plate and which prevents muddy water from entering at least near the center of the base plate. The paving blocks have a block paving structure in which a non-permeable layer is formed near the upper surface, including the upper surface, and a permeable layer through which rainwater can pass is formed in the area excluding the non-permeable layer.

10. The block paving structure according to claim 9, characterized in that the mud guard plate is arranged to surround the entire bottom surface of the base plate.

11. The block paving structure according to claim 9, characterized in that the mud guard plate is arranged to surround the center of the base plate.

12. The block paving structure according to any one of claims 9 to 11, characterized in that the mud guard plate is formed to a height of 2.5 mm or more and 20 mm or less.

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