Road structure

Abstract

To provide a road structure that positions paving members and prevents rainwater from staying on the road surface or from flowing into the roadbed.SOLUTION: A road 2 is formed by laying a plurality of paving blocks 4 on a roadbed 6. Corners and sides of the paving blocks 4 are respectively positioned by corner positioning members 10 and side positioning members 12. Further, positioning members 8 that include the corner positioning members 10 and the side positioning members 12 close the bottom of the joints so that the joints can be used as a drainage ditch 16. Rainwater falling on the road surface flows into the drainage ditch 16 and then into the gutter on the side of the road 2 on the road surface.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a road structure, and more particularly to a road structure formed by laying pavement members on a roadbed. [Background technology]

[0002] In interlocking block pavement, the sand filled in the joints between the pavement members allows the pavement members to interlock with each other when the wheel load of vehicles, etc. acts on the pavement. However, after many years of use as a road, the sand laid and in the joints can shift due to wheel load or flow out of the joints due to rainwater, etc., causing the pavement members to shift position, resulting in unevenness on the road surface.

[0003] Therefore, for example, Patent Document 1 proposes a technology to prevent the pavers from shifting position and ensure the drainage of the road surface by attaching an approximately inverted T-shaped molded product together with adhesive to the joints between the pavers at the cross intersections, as well as a molded member with good drainage properties.

[0004] Furthermore, Patent Document 2 proposes a ground pavement structure in which a ground pavement joint material is attached to the joints, thereby preventing wobbling of the surface material.

[0005] In addition, Patent Document 3 proposes a technology that ensures the positioning of paving blocks and the drainage of the road surface by using block paving reinforcing plates to position the corners of the paving blocks and by providing a mechanism to allow rainwater that has entered the joints to drain into the roadbed. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2012-207483 A [Patent Document 2] Japanese Patent Application Publication No. 10-298910 [Patent Document 3] JP 2020-125654 A Summary of the Invention [Problem to be solved by the invention]

[0007] However, in Patent Document 2, rainwater cannot be drained from the road surface, and it remains on the road surface. On the other hand, in Patent Documents 1 and 3, it is possible to drain rainwater from the road surface. However, the rainwater is ultimately drained into the roadbed. If the rainwater flows into the roadbed, the roadbed may be eroded by the rainwater after many years of use as a road. For this reason, even if a positioning member is used, the positioning member itself placed on the roadbed may rattle together with the pavement member, resulting in a possibility of rattling on the road surface. Thus, conventional methods have not been adequate in dealing with rainwater.

[0008] An object of the present invention is to provide a road structure which not only positions paving members but also prevents rainwater from accumulating on the road surface and from flowing into the roadbed. [Means for solving the problem]

[0009] The road structure according to the present invention comprises a plurality of road members arranged side by side on a roadbed to form a paved surface of the road. Rectangular Paving materials; Provided separately from the paving member, The pavement is provided with a positioning member for positioning the joints between the pavement members at a predetermined interval, and a drainage member for draining rainwater in the joints into a gutter on the side of the road without draining it into the roadbed. The positioning member includes a bottom plate portion that closes the lower portion of the joint between the adjacent paving members laid, and protruding portions that stand up from both side portions of the bottom plate portion and are inserted into recessed portions formed in the bottom surfaces of the adjacent paving members laid. The positioning members are arranged in a lattice pattern on the roadbed along each side of the paving members so that the protruding portions are inserted into the recessed portions when the paving members are laid side by side on the roadbed, and the positioning members also function as drainage members, allowing the joints between the adjacent paving members laid on the roadbed to be used as drainage channels. It is characterized by:

[0010] Also, Both tip portions of the bottom plate portion are formed to be at 90 degrees and abut against the tip portions of the other three positioning members. It is characterized by:

[0011] Also, The recessed portion is a groove formed in the bottom surface of the paving member along each side surface of the paving member, and the protruding portion is a vertical plate that stands vertically from the bottom plate portion, and the paving member is positioned by fitting the vertical plate of the positioning member into the groove. It is characterized by:

[0012] The road structure according to the present invention comprises a plurality of paving members which are laid side by side on a roadbed to form a paved surface of the road, positioning members which position joints between the paving members at a predetermined interval, and drainage members which allow rainwater in the joints to flow into a gutter beside the road without flowing into the roadbed, The positioning member comprises a plate portion that covers the lower part of the joint, and a wall portion that is erected on the plate portion and abuts the corners and sides of the paving member to prevent horizontal misalignment of the paving member, and is characterized in that it also serves as the drainage member. Effect of the Invention

[0020] According to the present invention, it is possible to provide a road structure that not only positions the paving members but also prevents rainwater from accumulating on the road surface and flowing into the roadbed. This makes it possible to provide a road structure that can be used for a long time and is less susceptible to movement or runoff of the laid sand and joint sand, and does not cause displacement or wobbling of the paving members. [Brief description of the drawings]

[0021] [Figure 1] 1 is a plan view showing a part of a road to which a first embodiment of a road structure according to the present invention is applied, viewed from above. [Diagram 2] FIG. 2 is a side view of a portion of the road shown in FIG. [Diagram 3] FIG. 2 is a perspective view showing a positioning member in the first embodiment. [Figure 4] FIG. 2 is a conceptual diagram showing a road condition when it is raining in the first embodiment. [Diagram 5] FIG. 11 is a plan view showing a part of a road to which a second embodiment of a road structure according to the present invention is applied, viewed from above. [Figure 6] 6 is a side cross-sectional view of a portion of the road shown in FIG. 5. [Figure 7] FIG. 11 is a perspective view showing a positioning member in the second embodiment. [Figure 8] FIG. 11 is a perspective view showing a rain molding in a second embodiment. [Figure 9] FIG. 11 is a side cross-sectional view showing the portion where the positioning member and the rain molding are attached to the paving block in the second embodiment. [Figure 10] FIG. 11 is a plan view showing a part of a road to which a third embodiment of a road structure according to the present invention is applied, viewed from above. [Figure 11] 11 is a side cross-sectional view of a portion of the road shown in FIG. 10. [Figure 12] FIG. 11 is a perspective view showing a positioning member in the third embodiment. [Figure 13] FIG. 11 is a bottom view of a paving block in the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0023] Embodiment 1 Fig. 1 is a plan view of a part of a road to which an embodiment of a road structure according to the present invention is applied, viewed from above. Fig. 2 is a side view of the part of the road shown in Fig. 1. Fig. 3 is a perspective view showing a positioning member in this embodiment. The road structure in this embodiment will be described below with reference to these figures.

[0024] The road 2 in this embodiment is formed by arranging the paving blocks 4 on the roadbed 6 that has been constructed to an appropriate strength. The paving blocks 4 are paving members that form the paved surface of the road by being laid side by side on the roadbed 6. There are various other names and materials for the "paving member" such as panels, plates, pavers, and tiles, but the "paving member" in this embodiment includes all of these. In addition, since precast concrete slabs also form paved roads, they are included in the "paving member" in this embodiment. The shape of the paving block 4 does not need to be particularly limited. In this embodiment, a general rectangular shape, particularly a square, will be described as an example of the shape of the paving block 4. When the paving block 4 is formed in a square, the size of the paving block 4 is about 20 to 150 cm on one side, but it is preferable that it is 30 to 100 cm. The thickness of the paving block 4 is designed according to the traffic of the road to which it is applied, but is approximately 6 to 30 cm.

[0025] The road 2 is formed by laying paving blocks 4 in rows and columns. The number of paving blocks 4 to be laid can be determined according to the size and purpose of the road 2. In this embodiment, the road 2 is described assuming a roadway, but the present invention can also be applied to roads where people, vehicles, etc. can pass, such as sidewalks and parking lots.

[0026] 1 shows a portion where paving blocks 4 are laid on a roadbed 6 in rows of three each, and positioning members 8 that engage with the laid paving blocks 4. The positioning members 8, which are characteristic of this embodiment, are placed on the roadbed 6, and the paving blocks 4 are positioned by the positioning members 8 and laid on the roadbed 6, as will be described in detail later.

[0027] The positioning members 8 position the joints between the paving blocks 4 to a predetermined distance. Furthermore, the positioning members 8 in this embodiment also serve as drainage members that allow rainwater in the joints to flow into the side gutters 14 on the sides of the road 2 without flowing into the roadbed 6. The shape of the positioning members 8 is determined according to the shape of the paving members.

[0028] The positioning member 8 in this embodiment is composed of two members 10, 12, as shown in Fig. 3. The member (hereinafter referred to as the "corner positioning member") 10 is formed of a flat, approximately octagonal base 10a and a vertical plate 10b that serves as a wall portion. The corner positioning member 10 is positioned at a location on the roadbed 6 where the corners of the four paving blocks 4 come together. The base 10a is the base on which the vertical plate 10b is erected, and also on which the corners of the four paving blocks 4 are placed. The base 10a is a plate portion that comes into contact with the bottom surfaces of the paving blocks 4 near the corners to seal the joints.

[0029] The vertical plates 10b are formed by erecting flat plates vertically on the base 10a. One corner positioning member 10 engages with the corners of four paving blocks 4, and therefore has four sets of vertical plates 10b corresponding to the four corners. One set of vertical plates 10b-1, 10b-2 are erected at an angle perpendicular to the angle (90 degrees) of the corner of the square paving block 4, with opposing sides abutting without any gaps. Adjacent sets of vertical plates 10b-1 and 10b-2 are erected parallel to each other and form part of a drainage ditch 16, which will be described later.

[0030] While the corner positioning members 10 correspond to the corners of the paving blocks 4, the members (hereinafter referred to as "side positioning members") 12 correspond to the sides of the paving blocks 4 (sides excluding the corners). The side positioning members 12 are formed of a flat, rectangular base 12a and vertical plates 12b that form the walls. When the side positioning members 12 are installed on the road 2, they are disposed between adjacent corner positioning members 10. The base 12a is the base on which the vertical plates 12b are erected, and is also a plate portion that contacts the bottom surfaces of the sides of the two paving blocks 4 placed on it and closes the lower part of the joints. The vertical plates 12b are formed by erecting a pair of flat vertical plates 12b-1, 12b-2 vertically on the base 12a. The pair of vertical plates 12b-1, 12b-2 are erected in parallel, and the distance between them is the same as the distance between adjacent pairs of vertical plates 10b-1 and 10b-2 in the above-mentioned corner positioning member 10. The pair of vertical plates 12b-1, 12b-2 form a part of a drainage ditch 16, which will be described later. In other words, by joining the corner positioning member 10 and the side positioning member 12, the joints between the paving blocks 4 can be used as the drainage ditch 16.

[0031] In this embodiment, the sides of the vertical plates 10b, 12b of the positioning member 8 that face the paving block 4 are abutted against the sides of the paving block 4, thereby stably positioning adjacent paving blocks 4 at a predetermined distance and preventing horizontal misalignment. The distance between adjacent pairs of vertical plates 10b-1 and 10b-2 and between adjacent pairs of vertical plates 12b-1 and 12b-2 is the width of the joints in the paving blocks 4. This width is approximately 0.5 to 2.0 cm, depending on the size of the paving block 4, etc.

[0032] Next, a method for forming a road in this embodiment will be described.

[0033] As in the past, the roadbed 6 is constructed to an appropriate strength. If the roadbed 6 surface is wavy, a suitable thickness of sand may be laid. By laying the sand, the wavy roadbed 6 can be absorbed, and the unevenness between the paving blocks 4 can be reduced. Next, as shown in FIG. 1, the positioning members 8 are placed on the roadbed 6 so that the vertical plates 10b, 12b of the four positioning members 8 form a square space. At this time, the opposing surfaces of the corner positioning member 10 and the side positioning member 12, specifically, the opposing side surfaces of the adjacent vertical plates 10b and 12b and the opposing side surfaces of the base 10a and the base 12a are joined with an adhesive or the like. This prevents rainwater from leaking between the corner positioning member 10 and the side positioning member 12.

[0034] Next, the paving blocks 4 are placed in the square spaces formed by the positioning members 8. In this manner, the road 2 is formed by laying the paving blocks 4.

[0035] In the above explanation, the positioning members 8 are placed on the roadbed 6 first, and then the paving blocks 4 are placed in the square space formed by the positioning members 8. However, this procedure does not necessarily have to be followed. For example, the positioning members 8 and the paving blocks 4 are alternately installed from one side gutter 14 of the road 2 toward the other side gutter 14, and the positions are finely adjusted. Specifically, the road 2 may be formed while making adjustments so that there is no gap between the vertical plates 10b, 12b and the paving blocks 4, in other words, so that the vertical plates 10b, 12b and the paving blocks 4 are securely abutted against each other.

[0036] Figure 4 is a conceptual diagram showing the state of a road 2 when it is raining. A road gutter 14 is provided on the side of the road 2. As shown in Figure 4, when it rains (represented by a dotted line), rainwater on the road surface does not stagnate but flows toward the joints that are lower than the road surface, as shown by the arrows.

[0037] In this embodiment, as described above, the joints between adjacent paving blocks 4 are utilized as drainage ditches 16 for rainwater on the road 2. The sides of the drainage ditches 16 are formed by the sides of the paving blocks 4 and the vertical plates 10b, 12b of the positioning member 8. The bottom surface of the drainage ditches 16 is formed by the bases 10a, 12a.

[0038] As described above, the rainwater on the road surface does not accumulate on the road surface but flows out into the drainage ditch 16. The rainwater in the drainage ditch 16 flows out into the side gutter 14, which is located lower than the drainage ditch 16, without accumulating in the drainage ditch 16 or flowing out into the roadbed 6.

[0039] According to the road structure of this embodiment, rain that falls on the road 2 can flow into the drainage ditch 16 without remaining on the road surface. Furthermore, the positioning members 8 prevent rainwater flowing through the drainage ditch 16 from flowing into the roadbed. Therefore, even if the road 2 is used for many years, the roadbed 6 will not be eroded by rainwater. Furthermore, since the roadbed 6 is not eroded by rainwater, the positioning members 8 installed on the roadbed 6 will not wobble on the roadbed 6. Therefore, the paving blocks 4 can be positioned without wobbling for a long period of time.

[0040] In the above description, the corner positioning member 10 and the side positioning member 12 are joined with an adhesive. However, the joining method is not limited to this. For example, as with positioning member 22 in the second embodiment described below, a structure in which projections and recesses are provided at the joining portion and the members are fitted together may be used. Adhesive can peel off due to deterioration, etc., but a fitting structure eliminates the risk of peeling.

[0041] Embodiment 2 FIG. 5 is a plan view of a part of a road to which the second embodiment of the road structure according to the present invention is applied, viewed from above. FIG. 6 is a side cross-sectional view of the part of the road shown in FIG. 5. FIG. 7 is a perspective view showing a positioning member in this embodiment. FIG. 8 is a perspective view showing a rain molding in this embodiment. FIG. 9 is a side cross-sectional view showing the mounting portion of the positioning member 22 and the rain molding 24 to the paving block 4 in this embodiment. The road structure in this embodiment will be described below using these figures. Note that the same components as those in the first embodiment are given the same reference numerals.

[0042] The road 2 in this embodiment is formed by arranging paving blocks 4 as paving members on a roadbed 6, similar to the first embodiment. What is different from the first embodiment is that the positioning members and the drainage members are prepared separately. Specifically, in the first embodiment, the positioning members 8 also serve as the drainage members, but in this embodiment, the rain molding 24 is used as the drainage member separately from the positioning members 22.

[0043] 5 shows a portion where the paving blocks 4 are laid on the roadbed 6 in rows of three each, and a positioning member 22 and a rain molding 24 that engage with the laid paving blocks 4. The positioning member 22 is placed on the roadbed 6, and the paving blocks 4 are positioned by the positioning member 22 and laid on the roadbed 6, as will be described in detail later.

[0044] As shown in FIG. 7, the positioning member 22 in this embodiment is formed of a flat, approximately octagonal base 22a and a plurality of cylindrical protrusions 22b. The positioning member 22 is positioned at a location on the roadbed 6 where the corners of the rectangular paving blocks 4 are gathered. The base 22a is a base for erecting the protrusions 22b. The base 22a is a bottom plate portion that contacts the bottom surfaces near the corners of the four paving blocks 4 to be placed and closes the joints. Since one positioning member 22 engages with the corners of the four paving blocks 4, four protrusions 22b are formed at positions facing the corners of each paving block 4. A recess 4a is provided at a position facing the protrusion 22b at the bottom corner of the paving block 4. The protrusion 22b is fitted into the recess 4a at a position facing the paving block 4, thereby fixing the paving block 4 so that it does not shift from the positioning member 22. As a result, the positioning member 22 stably separates the corners of the four paving blocks 4 at a specified distance. One paving block 4 is connected to the surrounding eight paving blocks 4 at its four corners. Therefore, when a vehicle brakes on one paving block 4, the braking force in the shear direction on the road surface is transmitted to the surrounding eight paving blocks 4, which is highly effective in preventing lateral displacement of the paving blocks 4 to which the vehicle transmits the braking force. In addition, because the convex portion 22b of the positioning member 22 and the concave portion 4a of the paving block 4 are cylindrical, braking force is more likely to be applied evenly to the convex portion 22b.

[0045] The rain molding 24 in this embodiment is provided as a drainage member. The cross section of the rain molding 24 is substantially U-shaped and protrudes downward. Both ends of the rain molding 24 are provided with convex parts 24c protruding outward. In this embodiment, as in the first embodiment, the joints between adjacent paving blocks 4 are used as rainwater drainage ditches 16 on the road 2. The sides of the drainage ditches 16 are formed by the sides of the paving blocks 4. The bottom of the drainage ditches 16 is formed by the rain molding 24. The rain molding 24 is formed from an elastic material, such as rubber, resin, or foamed materials thereof.

[0046] The rain molding 24 in this embodiment is composed of two members 24a and 24b. Member 24a (hereinafter referred to as "corner rain molding") is positioned at the location where the corners of the rectangular paving block 4 come together. Therefore, corner rain molding 24a has a substantially cross shape, and when attached to the paving block 4, it is attached into the joint at the position corresponding to the corner of the paving block 4.

[0047] While the corner rain moldings 24a correspond to the corners of the paving blocks 4, the members (hereinafter referred to as "side rain moldings") 24b correspond to the sides (side surfaces excluding the corners) of the paving blocks 4. When attached to the paving blocks 4, the side rain moldings 24b are disposed between the corner rain moldings 24a, and are attached into the joints at positions corresponding to the sides of the rectangular paving blocks 4.

[0048] Furthermore, the corner rain molding 24a and the side rain molding 24b are joined when used, but a structure is required in which rainwater does not leak from the joint and flow into the roadbed 6. In this embodiment, as shown in Fig. 8, the main body portion has a substantially U-shaped cross section, and the outside of one portion (side rain molding 24b in Fig. 8) and the inside of the other portion (corner rain molding 24a in Fig. 8) that faces the other rain molding 24 are scraped away to form a shape that fits into each other.

[0049] Next, a method for forming a road in this embodiment will be described.

[0050] As in the past, the roadbed 6 is constructed to an appropriate strength. Next, as shown in Fig. 9, the convex portion 22b of the positioning member 22 is fitted into the concave portion 4a of the paving block 4. In this way, the four paving blocks 4 are positioned by one positioning member 22 at a predetermined joint interval.

[0051] Next, the rain molding 24 formed by joining the corner rain molding 24a and the side rain molding 24b is attached to the paving block 4, but the width of the rain molding 24 is slightly larger than the width of the joint as shown by the dashed line in FIG. 9. For this reason, the rain molding 24 is inserted into the joint in a state in which its width is reduced in the direction of the arrow A by hand or the like, and is pushed in the direction of the arrow B. Then, when the convex portion 24c of the rain molding 24 is pushed into the groove 4b provided on the side of the paving block 4 to a position, the convex portions 24c at both ends of the rain molding 24 are fitted into the opposing grooves 4b due to the elasticity of the rain molding 24. In this way, the rain molding 24 is attached and fixed in a state of being erected on the side of the paving block 4. If the groove 4b of the paving block 4 and the convex portion 24c of the rain molding 24, and further the joint portion between the corner rain molding 24a and the side rain molding 24b are joined with a sealant, the infiltration of rainwater into the roadbed 6 can be more reliably prevented.

[0052] In this embodiment, the paving block 4 is provided with a groove 4b into which the convex portion 24c of the rain molding 24 is fitted. However, it is not necessary to be limited to such a structure with concaves and convexes. For example, the rain molding 24 may be made much wider than the width of the joint to exert a stronger elastic force, and the rain molding 24 may simply be inserted into the joint. Even in this case, a sealant may be used for joining.

[0053] Also, the mounting position of the rain molding 24 in the joint, that is, the mounting height, can be selected from various options. If it is mounted near the bottom surface of the paving block 4 as shown in Fig. 9, the volume of the drainage ditch 16 can be increased, allowing more rainwater to flow. On the other hand, if the mounting position of the rain molding 24 in the joint is brought closer to the top surface of the paving block 4, the rain molding 24 does not need to be pushed down into the joint by as much, which is easier than mounting the rain molding 24 near the bottom surface.

[0054] The road structure in this embodiment utilizes elastic rain moldings 24. Therefore, even if a lateral force acts on the road surface due to braking or the like, the elasticity of the rain moldings 24 makes them less likely to break.

[0055] Incidentally, in this embodiment, the joints of the paving blocks 4 are used as drainage ditches 16, allowing rainwater from the road surface to flow down to the side drain 14. For this reason, there is no need to provide a slope for drainage in the road 2. In other words, it is possible to provide a road 2 without a drainage slope, making it possible to provide a road on which vehicles are less likely to swerve onto the sidewalk due to the cross slope. In addition, puddles are less likely to form on the roadway closer to the sidewalk (i.e., on the side drain 14 side). In other words, it is possible to provide a road 2 that contributes to improved traffic safety.

[0056] Furthermore, if the drain 16 is provided with a downward slope toward the side gutter 14, rainwater can be drained quickly. However, this is not necessarily required, as rainwater will flow to the lower layer, i.e., into the side gutter 14, according to gravity even without the slope. If the drain 16 does not have a downward slope, some rainwater may accumulate at the bottom of the drain 16. However, since the top of the drain 16 is open, the rainwater will evaporate and dry when the weather is fine.

[0057] Embodiment 3 Fig. 10 is a plan view of a part of a road to which the third embodiment of the road structure according to the present invention is applied, viewed from above. Fig. 11 is a side cross-sectional view of the part of the road shown in Fig. 10. Fig. 12 is a perspective view showing a positioning member 26 in this embodiment. Fig. 13 is a bottom view of a paving block 4 in this embodiment. The road structure in this embodiment will be described below using these figures. Note that the same components as those in the first embodiment are given the same reference numerals.

[0058] Similar to the first embodiment, the road 2 in this embodiment is formed by arranging paving blocks 4 as paving members on a roadbed 6. The positioning members 26 in this embodiment are the same as those in the first embodiment in that they also serve as drainage members, but differ in that they are realized using only one type of positioning member of the same shape.

[0059] The positioning member 26 in this embodiment is composed of a base 26a as a bottom surface portion, and vertical plates 26b as protruding portions erected on both sides of the base 26a, and its cross section is U-shaped as shown in FIG. 11. Corners 26a-1 are formed by protruding both ends of the base 26a. The positioning members 26 are arranged in a lattice pattern along each side of the paving block 4 as shown in FIG. 10. Each corner 26a-1 of each positioning member 26 abuts against the corners 26a-1 of the other three positioning members 26 at the corners of the paving block 4, and is formed at 90 degrees so that no gaps are formed in the abutting portions.

[0060] In this embodiment, a groove 4c is formed on the bottom surface of the paving block 4 so that the vertical plates 26b of the four positioning members 26 can be inserted as shown in FIG. 13. The groove 4c is an elongated recess, and in this embodiment, it goes around the side surface of the paving block 4. In this embodiment, as in the second embodiment, the protrusions formed on the positioning members 26 are fitted into the recesses formed on the bottom surface of the paving block 4 to position the paving block 4 at a predetermined interval. In FIG. 10, for the sake of simplicity, only the positioning members 26 located below the paving block 4 are shown, and the grooves 4c are not shown.

[0061] The method of forming a road in this embodiment may be basically the same as that in the first embodiment. That is, the positioning members 26 are arranged in a lattice pattern on a roadbed 6 constructed to an appropriate strength. At this time, the sides of the corners 26a-1 are joined together with an adhesive or the like to prevent rainwater from leaking from the contact surface with the other positioning members 26. Note that the side of the corner 26-1 that contacts the other positioning members 26 is assumed to be formed as a flat surface, but it is also possible to provide a structure in which the side of the corner 26-1 is uneven so that they fit together, for example, so that they can be joined without using an adhesive or the like.

[0062] Next, the positioning members 26 are arranged in a grid pattern to place the paving blocks 4 so that the square convex portions formed by the vertical plates 26b fit into the square grooves 26c.

[0063] In this manner, the paving blocks 4 are positioned by the positioning members 26. In this embodiment, as in the above-described embodiments, the joints between adjacent paving blocks 4 can be used as drainage channels 16 for rainwater on the road 2. The base 26a forms the bottom of the drainage channels 16.

[0064] Moreover, the paving block 4 in this embodiment is connected to the surrounding eight paving blocks 4 at four corners, as in the second embodiment. Therefore, the braking force from the vehicle is distributed to the front and rear, and the effect of preventing lateral shifting of the paving block 4 to which the vehicle transmits the braking force is great. However, the positioning member 26 in this embodiment has a larger area for engaging with the paving block 4 compared to the second embodiment, and therefore the stress generated in the concrete paving slab in particular is reduced. Therefore, the engaging portion between the positioning member 26 and the paving block 4 is less likely to break. [Explanation of symbols]

[0065] 2 road, 4 paving block, 4a recess, 4b, 4c groove, 6 roadbed, 8, 22 side positioning members, 10, 12, 26 corner positioning members, 10a, 12a, 22a, 26a base, 10b, 10b-1, 10b-2, 12b, 12b-1, 12b-2, 26b vertical plate, 14 side gutter, 16 drainage gutter, 22b, 24c convex portion, 24 rain molding, 24a corner rain molding, 24b side rain molding, 26a-1 corner portion.

Claims

1. A plurality of rectangular pavement members that are laid side by side on a roadbed to form a pavement surface of a road; A positioning member provided separately from the paving member and for positioning the joints between the paving members to a predetermined interval; A drainage member that allows rainwater in the joint to flow into a gutter beside the road without flowing into the roadbed; Equipped with The positioning member is A bottom plate portion that closes the lower portion of the joint between adjacent paving members; A protrusion is provided on each side of the bottom plate and is inserted into a recess formed in the bottom surface of the adjacent pavement member. Equipped with The positioning members include: The pavement members are arranged in a grid pattern on the roadbed along each side of the pavement members so that the convex portions are inserted into the concave portions when the pavement members are laid side by side on the roadbed, A road structure characterized in that the drainage members are used in combination with the joints between adjacent pavement members arranged on the roadbed as drainage ditches.

2. A road structure as described in claim 1, characterized in that both end portions of the base plate portion are formed at 90 degrees and abut against the end portions of the other three positioning members.

3. The recess is a groove formed in the bottom surface of the paving member along each side surface of the paving member, The protruding portion is a vertical plate that stands vertically from the bottom plate portion, 2. The road structure according to claim 1, wherein the paving member is positioned by fitting the vertical plate of the positioning member into the groove.

4. A plurality of pavement members that are laid side by side on a roadbed to form a pavement surface of a road; A positioning member for positioning the joints between the paving members at a predetermined interval; A drainage member that allows rainwater in the joint to flow into a gutter beside the road without flowing into the roadbed; Equipped with The positioning member is A plate portion that closes the lower portion of the joint; a wall portion that is erected on the plate portion and abuts against corners and sides of the paving member to prevent the paving member from shifting in a horizontal direction; A road structure comprising:

Images