JP2010095903A - Paving stone pavement system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paving stone pavement system allowing a pedestrian to have a cool feeling by the body actually and notice the existence of water visually to have the cool feeling. <P>SOLUTION: Many pavement panels 14 are laid on a roadbed 12 while each of clearances 16 is formed between adjacent pavement panels 14. A drainage channel 13 communicating with the clearances 16 is formed among the roadbed 12 and the pavement panels 14 so that the water supplied into the drainage channel 13 oozes out on a surface side of the pavement panel 14 through each clearance 16 between the pavement panels 14 when supplying the water into the drainage channel 13. The outer fringe 14a of an upper face of each pavement panel 14 is formed to be lower than the central part 14b of the upper face to collect the water on a low level in the outer fringe 14a of the upper face of each pavement panel 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a paving stone pavement system that can be embodied as a pavement, a plaza or the like, and in particular, can realize a cool space where water exists.

Conventionally, as a paving stone pavement system for creating a cool space, for example, configurations as disclosed in Patent Documents 1 to 4 have been proposed.
In the configuration described in Patent Document 1, a concrete pavement plate and a hardened water-absorbing cement having a fine crack are laid on the upper surface of the earth roadbed. And it is comprised so that the movement of the water from the lower surface side of a water absorbent cement hardening body to the upper surface side may be performed through the fine crack of a water absorbing cement hardened body. With this configuration, it is said that the water island phenomenon is suppressed by the heat of vaporization when the water retained in the clay bed is sucked up to the upper surface of the hardened water absorbent cement through fine cracks and the water evaporates in fine weather. .

  Moreover, in the structure of patent document 2, a water-impermeable layer is formed in the upper surface of a roadbed, and the aggregate layer as a water retention part which mixed the water retention material was provided in the upper surface of the water-impermeable layer. A water retention material is laid on the upper surface of the aggregate layer, and a water retention block and a water permeable block constituting the road surface are installed in a mixed state on the upper surface of the water retention material. During rainy weather, rainwater penetrates into the aggregate layer through the water permeable block. On the other hand, at the time of fine weather, the water retained in the aggregate layer evaporates from the surface of the water retention block, and the heat of vaporization suppresses the temperature rise on the road surface.

  Furthermore, in the configuration described in Patent Document 3, a roadbed layer made of crushed stone or the like is laid on the upper surface of the roadbed, and a water retention layer made of a granular material containing foamed glass particles is laid on the upper surface of the roadbed layer. . A block-shaped surface layer having water permeability is laid on the upper surface of the water retention layer. In rainy weather, rainwater penetrates the water retaining layer through the surface layer having water permeability. On the other hand, at the time of fine weather, the water retained in the water retaining layer evaporates from the surface layer, and the heat of vaporization suppresses the temperature rise on the road surface.

Moreover, in the structure of patent document 4, the water storage layer which consists of many resin water storage members is formed in the upper surface of a road bed, and the water conveyance sheet | seat is laid by the upper surface of the water storage layer. A number of blocks are laid on the upper surface of the water guide sheet via a sand cushion layer, and joint sand is filled between the blocks. In rainy weather, rainwater penetrates into the reservoir through the sand cushion layer. On the other hand, in fine weather, the water retained in the reservoir layer oozes from the sand cushion layer and evaporates from the joint sand, and the heat of vaporization can provide a cooling effect on the ground surface.
JP 2006-118128 A JP 2006-283447 A JP 2008-19557 A JP 2008-88714 A

However, these conventional configurations have the following problems.
That is, in the configurations described in Patent Literatures 1 to 4, although the temperature rise of the road surface is suppressed by the heat of vaporization accompanying the evaporation of water from the road surface, there is no water on the road surface. For this reason, a pedestrian cannot visually recognize the presence of water and obtain a cool feeling through the vision. Further, in the configurations described in Patent Documents 1 to 4, since water is evaporated through fine cracks and slits such as surface layers or blocks having a water retaining function or a water permeable function, in other words, capillary tubes Since the water is transpired through the water, the amount of water actually transpired is not large, and the cooling effect can hardly be expected as compared with the case where the water surface exists on the road surface. In particular, in Patent Document 1 and Patent Document 4, since water is evaporated from a band-shaped water-absorbent cement cured body or joint portion, the transpiration area is not wide and the cooling effect is further low. In addition, in Patent Documents 1 to 4, since the amount of water that is transpirated depends on the amount of water retained in the water retaining material or the like, the amount of transpiration water cannot be controlled according to temperature, humidity, or the like. It is practically difficult to realize a comfortable cool feeling space according to factors such as weather and the number of pedestrians. In addition, even if water is sprayed on the road surface to give a visual cool feeling, the sprayed water is absorbed from fine cracks and the like, so the cool feeling effect disappears in a short time.

  In addition, even when moisture transpiration is unnecessary, moisture is retained in the fine cracks and the like due to rain, morning dew, and the like. And in the state where this water | moisture content was hold | maintained, dust, mud, etc. adhere to the part, and it becomes easy to get dirty, and in such a case, a pedestrian is given discomfort and unclean feeling. In winter, the water retained in fine cracks and the like may expand due to freezing and damage the road surface.

  In Patent Document 2, an open gap is formed between blocks on the pavement surface, and the bottom of the gap is formed of a water absorbing material. For this reason, this gap only allows water vapor evaporated from the water-absorbing material to pass through, and hardly contributes to the improvement of the cooling effect.

  Furthermore, in Patent Documents 1 to 4, fine cracks and slits are easily clogged by oil such as dust and bitumen, and in such a case, the function of evaporating water is reduced. For this reason, in cleaning the road surface, there is a risk of clogging when pressure is applied by the rotating brush of the cleaning car, and cleaning using such a cleaning car cannot be easily performed. For this reason, such a road surface is usually washed by jetting high-pressure water, which is expensive.

  In addition, in Patent Documents 1 to 4, although the water-absorbent cement cured body has a water absorbing function, it cannot drain a large amount of water. Therefore, it is necessary to provide a slope for drainage on the road surface of the pavement, and this slope may hinder ease of walking.

  Furthermore, the porous blocks having water permeability as disclosed in Patent Documents 2 and 3 are not only poor in quality as a paving material, but also easily get dirty and it is difficult to ensure a high-quality grade feeling. .

  The present invention has been made paying attention to such problems existing in the prior art. The purpose of the present invention is to provide a paving stone pavement system that not only allows a pedestrian to actually experience a comfortable cool feeling, but also provides a cool feeling by directly visualizing the presence of water, and is also capable of playing with water.

  In order to achieve the above object, the present invention forms a pavement by laying a large number of water-impermeable pavement panels on a roadbed with an open gap formed between them, and the gap is used as a water source. It is characterized by being connected to. Here, the pavement refers to a walkable place where a pavement panel is laid, and thus includes not only a pavement but also a plaza, a park, a pier, and the like.

  Therefore, by supplying water into the gap between the pavement panels, the water oozes out from the gap and the surface of each pavement panel can be kept wet. And not only the heat of vaporization due to the evaporation of water from the surface of the pavement panel, but also the temperature of the water supplied into the gap, the temperature rise of the road surface can be suppressed. It is possible to provide a cool space that can be experienced. Moreover, since water exists directly on the road surface, a cool space can be provided to the pedestrians on the visual side as well. Furthermore, when the supply of water to the gap is stopped in winter or the like, the pavement can be used as a normal road surface without water. Further, by increasing the water supply to the gap, the water can be stretched on the pavement panel, and the road surface can be used as a water playground. Further, since the gap is formed between the pavement panels, drainage of the pavement becomes smooth, and a gradient for drainage of the pavement becomes unnecessary. Therefore, it is possible to reduce the amount of water used to make the pavement panel wet and water used for the playground. In addition, since it is not necessary to use a porous material having water absorption and water retention properties as a pavement panel, a pavement having a high-quality finish can be formed.

  Moreover, the said structure WHEREIN: It is good to form the upper surface outer edge part of each said pavement panel lower than an upper surface center part. In such a configuration, when water is supplied into the gap, the water can be thinly stored only on the outer edge of the upper surface of each pavement panel to the extent that it does not hinder pedestrians. Therefore, when water is stretched thinly on the road surface, the water forms a mesh and the landscape is improved, and the pedestrian can walk where water is not present.

  Furthermore, in the said structure, it is good to attach an opening or a culvert to the said pavement, and to connect the said gap | interval to the said opening or an undercover. When configured in this way, water can be supplied to the gap through the opening or undercutting, and visual coolness can be further enhanced by the water flowing in the opening.

  As described above, according to the present invention, the pedestrian can actually feel a comfortable cool sensation, in addition to being able to obtain a cool sensation by visually confirming the presence of water, and also exhibiting the effect of being able to play with water. To do.

(First embodiment)
Below, the paving stone pavement system of 1st Embodiment of this invention is demonstrated based on FIGS. As shown in FIGS. 1 and 2, a roadbed 12 made of concrete or the like is formed on a roadbed 11. A plurality of groove-shaped water distribution channels 13 are formed on the upper surface of the roadbed 12 so as to be spaced apart from each other in the longitudinal direction of the roadbed 12 and to extend in parallel in the width direction. On the upper surface of the roadbed 12, a large number of non-standard pavement panels 14 are laid in an overlying state via a fixing layer 15. The pavement 10 is configured as described above. Each of the pavement panels 14 is a natural stone such as granite or iron flat stone or an artificial stone imitating a natural stone, and has no water permeability and water retention. Here, the natural stone or artificial stone that does not have water permeability and water retention refers to a material that has a low permeation rate even if it is a material that slightly permeates moisture. That is, at a normal temperature of 60% humidity, the permeation rate is slower than the rate at which the moisture adhering to the stone surface dries, and therefore it actually means that the moisture can hardly be retained, for example, it is not a porous material. And as shown in FIG. 3, each pavement panel 14 is formed so that the upper surface outer edge part 14a may become lower than the upper surface center part 14b. A gap 16 that is continuous in a net-like shape is formed between the adjacent pavement panels 14 as a whole, and this gap 16 communicates with the water distribution path 13 on the roadbed 12. The width of the gap 16 is preferably about several mm to 30 mm.

  As shown in FIG. 1 and FIG. 2, a shallow water channel 17 is provided in parallel on one side of the pavement 10 as a clear slope. Therefore, a natural water flow is formed in the shallow water channel 17. One end of each water channel 13 communicates with the upper part of the shallow water channel 17. The side wall 10 a of the pavement 10 and the outer wall 17 a of the shallow water channel 17 are formed higher than the upper surface of the pavement panel 14.

On the other side of the pavement 10, a soil portion 19 is provided side by side. The soil portion 19 is provided with planting 18 such as trees and flowers. Therefore, the soil part 19 exhibits a green belt shape.
Next, the water supply / drainage configuration of the paving stone pavement system will be described.

  As shown in FIG. 4, a water storage tank 21 as a water source is installed in the vicinity of the shallow water channel 17. The water storage tank 21 is configured such that sunlight does not enter the inside thereof, and algae or the like does not grow in the tank 21 or plankton does not grow. A water supply pipe 22 is connected between the water storage tank 21 and the upstream portion of the shallow water channel 17, and a water supply pump 23 capable of adjusting the water supply amount is connected to the water supply pipe 22. Then, by the operation of the water supply pump 23, the water stored in the water storage tank 21 is supplied into the shallow water channel 17 through the water supply pipe 22. Then, in a state where the water level in the shallow water channel 17 has risen above a certain level, the water in the shallow water channel 17 is guided into each water distribution channel 13 between the roadbed 12 and the pavement panel 14. As a result, the water in the water distribution channel 13 oozes out from the gap 16 between the pavement panels 14 to the surface side of the pavement panel 14. A first drain pipe 24 is connected between the downstream portion of the shallow water channel 17 and the water tank 21 to return water from the shallow water channel 17 to the water tank 21, and a flow rate control is provided in the first drain pipe 24. A valve 25 is connected.

  Then, by appropriately adjusting the water supply amount of the water supply pump 23 and the opening degree of the flow rate control valve 25, water circulates between the water storage tank 21 and the shallow water channel 17, and the water enters the shallow water channel 17. Flowing. Further, by adjusting at least one of the water supply amount of the water supply pump 23 and the opening degree of the flow rate control valve 25, the water level in the shallow water channel 17 is adjusted, and from the gap 16 between the pavement panels 14 via each water distribution channel 13. The amount of water that exudes to the surface of the pavement panel 14 is adjusted. FIG. 4 is a schematic diagram, and for the sake of convenience, the shallow water channel 17 is drawn on both sides of the pavement 10.

  The drainage pipe 24 functions as a water collecting tank for collecting rainwater through the shallow water channel 17. In rainy weather, the flow control valve 25 is appropriately adjusted so that the rainwater flowing into the water distribution channel 13 from the gap 16 or the rainwater falling directly to the shallow water channel 17 becomes the shallow water channel 17 and the first drainage pipe. 24 and collected in the water storage tank 21. A second drainage pipe 26 having an on-off valve (not shown) is connected to the shallow water channel 17. In normal times, the on-off valve is closed and the second drainage pipe 26 is closed. On the other hand, during heavy rain, the on-off valve is opened and the water in the shallow water channel 17 is discharged to a public rainwater pipe (not shown) through the second drainage pipe 26.

  The water tank 21 is provided with a water level sensor 27 for detecting the amount of water stored therein. A tap water supply pipe 28 is connected to the water storage tank 21, and an open / close valve 29 is provided in the tap water supply pipe 28. When the amount of water in the water storage tank 21 detected by the water level sensor 27 falls below a predetermined value, the open / close valve 29 is opened, so that tap water is stored in the water storage tank 21 via the tap water supply pipe 28. It is replenished inside. The water storage tank 21 is connected to a third drain pipe 32 having an on-off valve 31. When the on-off valve 31 is opened, the water stored in the water storage tank 21 is discharged to the public rainwater pipe or the like. A filtration device 30 is connected to the water storage tank 21. And the water in the water storage tank 21 is filtered by the filtration apparatus 30, and various impurities, such as dust and sand, are removed. An overflow pipe 35 is connected to the upper part of the water storage tank 21. When the water level in the water storage tank 21 rises to near full water, the overflow water flows from the overflow pipe 35 to the public rainwater pipe.

  Now, the cool space of the pavement 10 is implement | achieved as follows. That is, when the water supply pump 23 is operated, the water in the water storage tank 21 is supplied into the shallow water channel 17 through the water supply pipe 22. At the same time, the water in the shallow water channel 17 is returned to the water storage tank 21 through the drain pipe 24. At this time, the amount of water supplied by the water supply pump 23 and the opening of the flow control valve 25 are adjusted according to the detection signal from the water level sensor 27, and the water level in the water storage tank 21 is maintained at the set water level. For this reason, the amount of water flowing through the shallow water channel 17, that is, the water level is also kept at the set value, and the water in the shallow water channel 17 is guided into each water distribution channel 13 between the roadbed 12 and the pavement panel 14, and It oozes out from the water distribution channel 13 to the surface of the pavement panel 14 through the gap 16 between the pavement panels 14.

  In this case, as shown in FIG. 5, since the upper surface outer edge portion 14a of each pavement panel 14 is formed to be lower than the upper surface center portion 14b, the water that has oozed out on the surface of the pavement panel 14 is pedestrian. Therefore, it can be thinly accumulated so as to form a net shape as a whole only on the upper surface outer edge portion 14a of each pavement panel 14. Then, the water accumulated on the upper outer edge portion 14a of the pavement panel 14 evaporates and takes heat of vaporization, and the temperature of the water is transmitted to the pavement panel 14, thereby cooling the pavement panel 14 and the like. For this reason, the temperature rise of the road surface and the surrounding space is suppressed. Accordingly, a cool space can be provided to the pedestrian, and the presence of a water surface on the surface side of the pavement panel 14 can give the pedestrian a visually comfortable cool feeling. Moreover, since there is a murmur due to the shallow water channel 17 next to the pavement 10, a visual cool feeling can be further produced, and an audible cool feeling can be given by the sound of the murmur water.

  Further, when the water supply pump 23 is operated with the flow control valve 25 being narrowed, the amount of water in the shallow water channel 17 increases and the amount of water that oozes from the gap 16 to the surface of the pavement panel 14 is large. can do. For this reason, as shown by a solid line in FIG. 6, water is stretched on the pavement panel 14 at a shallow water level such as an ankle of a child to form a basin, and the road surface can be used as a water playground. In this case, by adjusting the opening degree of the flow control valve 25, the water level on the pavement panel 14 can be freely adjusted as shown by a chain line in FIG.

  Further, when the water supply pump 23 is stopped, water is not supplied from the water storage tank 21 to the shallow water channel 17. Therefore, as shown in FIG. 3, water does not ooze out from the water distribution channel 13 through the gap 16 to the surface of the pavement panel 14, so that a normal pavement 10 without water is formed.

Accordingly, the first embodiment has the following effects.
(1) In this embodiment, the surface of each pavement panel 14 can be kept wet by the water that oozes out through the gap 16 between each pavement panel 14 from the inside of the water distribution channel 13, so It is possible to provide a cool space not only in the bodily sensation but also visually. Moreover, unlike the above-mentioned Patent Documents 1 to 4, the amount of evaporated water is sufficient to evaporate from the water surface that actually exists, rather than evaporating the water that has penetrated the fine cracks and slits due to the capillary phenomenon. The road surface can be properly cooled. Therefore, it is effective for preventing the generation of heat island. In addition, the water that oozes out from the gap 16 has a net-like shape that exhibits an aesthetic appearance as a whole, and thus is effective in improving the scenery and coolness of the pavement 10. Moreover, the pedestrian can get a feeling of walking on the surface of the water without getting wet by walking in a place where there is no water, and can obtain a comfortable walking feeling.

  (2) In this embodiment, the amount of water on the road surface side can be freely controlled only by controlling the operation of the water supply pump 23 and the flow rate control valve 25. Therefore, the cooling degree of the pavement 10 and its space can be freely adjusted according to the weather, the number of pedestrians, and the like. Moreover, as described above, not only can the water be spread over the entire road surface to create an area for water play, but in winter, the water stretched over the entire road surface can be naturally frozen and used as a skating area. is there. Moreover, when the water of the road surface side is not required, it can be made into a dry state like a normal pavement by lowering the water level of the shallow water channel 17 and draining it from the water distribution channel 13.

  (3) In this embodiment, it forms so that the upper surface outer edge part 14a of each pavement panel 14 may become lower than the upper surface center part 14b. For this reason, the water that oozes out from the water distribution channel 13 through the gap 16 to the surface of the pavement panel 14 can be accumulated in a thin layer only on the upper surface outer edge portion 14a of the pavement panel 14 to the extent that does not hinder pedestrians.

  (4) In this embodiment, a shallow water channel 17 that communicates with the water distribution channel 13 is provided along the pavement 10. For this reason, water can be supplied to the water distribution channel 13 using the shallow water channel 17, and the structure for water distribution can be simplified.

  (5) In this embodiment, the shallow water channel 17 is provided along the pavement 10 as described above. For this reason, the pavement 10 is located on the waterside, and the visual cool feeling can be further enhanced by the water flowing in the shallow water channel 17, and the cool sound from the auditory surface is also obtained by the murky water sound flowing in the shallow water channel 17. be able to.

  (6) In this embodiment, not only the shallow water channel 17 is provided along the pavement 10 as described above, but also the soil part 19 with the planting 18 is provided on the opposite side of the shallow water channel 17. . For this reason, the circumference of the pavement 10 becomes a water-green biotope-like space, and not only a cool sensation but also the enjoyment of a green landscape with a stone pavement can be given.

  (7) In this embodiment, the water on the road surface side of the pavement 10 can be discharged through the gap 16, the water distribution channel 13, and the shallow water channel 17. Therefore, the gradient for drainage on the road surface of the pavement 10 becomes unnecessary, and a horizontal surface suitable for walking can be formed long or wide. In addition, since it is not necessary to give a gradient to the road surface, the amount of water used can be reduced when the road surface is wetted in a mesh shape or a water basin is formed on the road surface. Conversely, when there is a gradient on the road surface, the road surface located at a high place may be exposed from the water surface, so it is necessary to increase the amount of water.

  (8) In this embodiment, since there are no fine cracks or slits in the pavement 10, the road surface is not clogged, and therefore the cooling function on the pavement 10 cannot be impaired. In addition, it is not necessary to clean the road surface so as not to be clogged using high-pressure washing or the like, and the cleaning can be performed easily and at low cost using a cleaning vehicle or the like.

  (9) In this embodiment, since there are no fine cracks or slits in the pavement 10 as described above, there is a risk that the pavement 10 may be damaged by freezing of water that has entered the cracks or slits in the winter. Is unrelated.

  (10) In this embodiment, since there are no fine cracks or slits in the pavement 10 as described above, dust or mud adheres to the road surface due to moisture absorbed in the fine cracks or slits. Can be prevented. Therefore, the road surface can be kept clean.

  (11) In this embodiment, it is not necessary for the pavement panel 14 to have functions of water permeability and water retention. For this reason, it is not necessary to use a porous material as the pavement panel, and it is possible to ensure a high-quality grade feeling that is high-quality and difficult to get dirty.

  (12) In this embodiment, rainwater is collected in the water storage tank 21 through the shallow water channel 17 and the drainage pipe 24. Therefore, the rainwater stored in the water storage tank 21 can be used for cooling the pavement 10 and improving the landscape, and can contribute to a reduction in running cost.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In each of the embodiments after the second embodiment, the description will focus on the configuration and operation different from those of the first embodiment.

  Now, in this 2nd Embodiment, as shown in FIG. 7, the recessed part 33 is formed in the lower surface outer periphery of each pavement panel 14. As shown in FIG. The plurality of pavement panels 14 are laid on the roadbed 12 with the gaps 16 between them, so that the gaps 16 communicate with each other between the recesses 33 of the adjacent pavement panels 14 and the upper surface of the roadbed 12. A water distribution channel 13 is formed.

(Third embodiment)
In the third embodiment, as shown in FIG. 8, a concave groove 34 having both ends opened on the outer peripheral end surface of the pavement panel 14 is formed on the lower surface of each pavement panel 14. The plurality of pavement panels 14 are laid on the roadbed 12 with the gaps 16 provided, so that the concave grooves 34 of the respective pavement panels 14 communicate with the gaps 16. Therefore, the concave groove 34 functions as a water distribution channel, and water reaches the gap 16 through the concave groove 34.

(Fourth embodiment)
In 4th Embodiment, the shallow water channel 17 in the said each embodiment is not provided. Moreover, in this 4th Embodiment, as shown in FIG. 9, the 1st drainage pipe which has the water supply piping 22 and the flow control valve (not shown) which have a water supply pump (not shown) in the road bed 11 and the roadbed 12. 24 is embedded, and a plurality of terminals 22 a and 24 a of the pipes 22 and 24 are opened in the gap 16. Then, water is supplied to the gap 16 from the water storage tank 21 as a water source through the water supply pipe 22 and its terminal 22a, and the drainage from the gap 16 is supplied from the terminal 24a of the first drainage pipe 24 to the first drainage. This is done through the pipe 24.

(Fifth embodiment)
In the fifth embodiment, as shown in FIG. 10, each pavement panel 14 is configured by a square shaped panel, and each pavement panel 14 is laid in an aligned state with a gap 16. The pavement panel 14 may be a regular panel other than a quadrangle such as a triangle, pentagon, or hexagon.

(Sixth embodiment)
In the sixth embodiment, as shown in FIG. 11, as in the fifth embodiment, each pavement panel 14 is formed by a fixed panel, and each pavement panel 14 is laid in an aligned state with a gap 16 therebetween. Has been. Moreover, in this 6th Embodiment, while opening both ends to the outer peripheral end surface of the pavement panel 14 in the bottom face (back surface) of each pavement panel 14, the intersecting ditch | groove 34 is formed. Accordingly, the concave groove 34 communicates with the gap 16 between the paved panels 14. Also in the sixth embodiment, similarly to the third embodiment of FIG. 8, the concave groove 34 functions as a water distribution channel of the first embodiment, and water reaches the gap 16 through the concave groove 34.

(Seventh Embodiment)
The seventh embodiment is suitable when the paving stone pavement is embodied in a wide pavement 10 or a plaza as shown in FIG. Therefore, in the seventh embodiment, a culvert 17 is provided instead of the shallow water channel 17 of each of the above embodiments. The culvert 17 is closed by the pavement panel 14 and is laid around an appropriate position such as the center or corner of the pavement 10 or the plaza. The culvert 17 is provided with a single or a plurality of strips as necessary, and is further crossed as necessary to branch or join. The underdrain 17 communicates with the water distribution channel 13. In addition, in FIG. 7, although the water distribution channel 13 and the 2nd drainage piping 26 are drawn overlappingly in order to clarify a structure, even if they are located in the same height, they overlap in fact. There is no. In the seventh embodiment, it is possible to obtain the same effects as in the previous embodiment. Moreover, in this 7th Embodiment, since it has the structure which provides the culvert 17 in a suitable position, it is suitable when implement | achieving paving stone pavement of a large area like open space. And even if it is a paving stone pavement of such a large area, since the gradient for drainage is unnecessary, it becomes possible to cool, without requiring a lot of water.

(Eighth embodiment)
As shown in FIG. 13, the eighth embodiment has a configuration in which the supply pipe 22 and the drain pipe 24 in the seventh embodiment are used in common. That is, the water supply / drainage pipe 54 is connected between the water storage part of the water storage tank 21 and the bottom part of the shallow water channel 17. A part of the water supply / drainage pipe 54 is constituted by a parallel circuit of a water supply side pipe 54a and a drainage side pipe 54b. The water supply pump 23 is connected to the water supply side pipe 54a, and the drainage control valve 25 is connected to the drainage side pipe 54b. And when water supply with respect to the shallow water channel 17 is performed, the pump 23 is act | operated in the state which the drainage control valve 25 was closed. As a result, the water in the water storage tank 21 is supplied to the shallow water channel 17 through the water tank side of the water supply / drainage pipe 54, the water supply side pipe 54 a, and the shallow water channel 17 side of the water supply / drainage pipe 54. Further, the drainage from the shallow water channel 17 is supplied to the water storage tank 21 side through the shallow water channel 17 side of the water supply / drainage pipe 54, the drainage side pipe 54b, and the water storage tank side of the water supply / drainage pipe 54 in a state where the drainage control valve 25 is opened. Flowed using the height difference.

  Therefore, in the eighth embodiment, since the water supply pipe and the drain pipe are used together except for the pump 23 and the drain control valve 25, the total length of the pipe can be shortened, and the equipment cost can be reduced. This cost reduction effect is exhibited as the system becomes larger.

(Example of change)
In addition, this embodiment is not limited to the said embodiment, You may change as follows.

-It is set as the structure which does not provide the water distribution path 13 in the said 1st Embodiment. When configured in this manner, the gap 16 between the paving panels 14 is directly communicated with the shallow water channel 17.
・ The pavement 10 of the paving stone paving system shall be a plaza with the same structure.

In place of the shallow water channel 17, a pond that can communicate with the gap 16 is provided, and water is oozed out of the gap 16 by adjusting the water level of the pond.
A tank or a reservoir as a water source for storing rainwater is provided at a position higher than the shallow water channel 17 without providing the reservoir 21 for supplying water by the water supply pump 23 as in the first embodiment, and from the tank or the reservoir Construct so that water that falls naturally flows into the shallow water channel 17 and the water channel 13.

・ Provide the shallow water channel 17 on both sides of the pavement 10, cross the pavement 10, or provide it in the center of the pavement 10.
The water distribution channel 13 is formed in a shape different from that of the above embodiment, for example, a planar lattice shape or a meandering shape.

  -Fill the gap 16 with crushed stones or large sand. In this case, a large crushed stone or sand particle is used so that the water level in the gap 16 rises faster than the water level rises due to capillary action, and the water level falls by gravity without evaporation of moisture. It is necessary to ensure a wide gap between them. As described above, if the gap 16 is filled with crushed stone or the like, the presence of the gap 16 is almost negligible for the pedestrian, and it becomes easy to walk. Even if the walker wears high heels, the heel The risk of being taken can be prevented. In this case, the larger the width of the gap 16, the larger the crushed stone filled in the gap 16, etc., and when the width of the gap 16 is about 30 mm, the larger one is used.

  -A synthetic resin or metal lid is fitted into the gap 16. The lid needs to be provided with a large hole or notch for allowing water to pass smoothly without being caused by a capillary phenomenon or the like. In this way, the pedestrian can substantially ignore the presence of the gap 16 as in the case of filling the crushed stone or the like.

  -As a pavement panel 14, without forming an upper surface outer edge part lower than an upper surface center part, the whole is comprised by the rough surface located in the substantially same horizontal surface, and makes it a substantially flat upper surface shape. Even if comprised in this way, water is hold | maintained at the said rough surface and the cool feeling ensuring effect and a favorable walk feeling can be acquired similarly to the said embodiment.

(Other technical ideas)
The technical ideas other than the technical ideas described in the claims will be described below.

(A) The paving stone pavement system according to any one of claims 1 to 3, wherein a water distribution channel communicating with a gap between the pavement panels is provided between the roadbed and the pavement panel.
In this way, water can be smoothly supplied to the gap through the water distribution channel.

(B) The paving stone pavement system according to item (A), wherein a water distribution channel is formed on a roadbed on which a pavement panel is laid.
(C) The paving stone pavement system according to item (B), wherein the end of the water distribution channel is connected to the shallow water channel.

In this way, water can be supplied to the gap and discharged from the gap using the shallow water channel.
(D) The paving stone pavement system according to item (A), wherein a water distribution channel is formed on the back surface of the pavement panel.

(E) The pavement pavement system according to any one of claims 1 to 3 and the other technical ideas (A) to (D), wherein soil parts for planting are arranged side by side. .
In this way, the landscape can be improved.

  (F) The technical idea according to claim 3, comprising a water storage tank, a supply path for supplying water from the water storage tank to the shallow water channel, and a drainage channel for discharging water from the shallow water channel to the water storage tank. The paving stone pavement system according to any one of (A) to (E).

If it does in this way, while being able to circulate water between a water tank and a shallow water channel, rain water can be collected and stored in a water tank via a shallow water channel.
(G) The paving stone pavement system according to item (F), wherein a supply channel and a drain channel between the water storage tank and the shallow water channel are shared.

If comprised in this way, the full length of piping between a water tank and a shallow water channel can be shortened.
(H) The paving stone pavement system according to item (F) or (G), wherein a filtration device for filtering water in the water storage tank is provided.

  If it does in this way, sand etc. can be removed from the water in a water tank, and problems, such as a water supply pump, can be prevented beforehand.

The partial top view which shows the paving stone pavement system of 1st Embodiment. The fragmentary sectional view in the 2-2 line of FIG. The partial expanded sectional view in the 3-3 line of FIG. Schematic which shows the water supply / drainage structure with respect to a paving stone pavement system. The fragmentary sectional view which shows the state which supplied water to the paving stone pavement system of FIG. The fragmentary sectional view which shows the state which supplied water to the water level different from the case of FIG. The fragmentary sectional view which shows the paving stone pavement system of 2nd Embodiment. The fragmentary sectional view which shows the paving stone pavement system of 3rd Embodiment. The fragmentary sectional view which shows the paving stone pavement system of 4th Embodiment. The fragmentary top view which shows the paving stone pavement system of 5th Embodiment. The fragmentary sectional view which shows the paving stone pavement system of 6th Embodiment. Schematic which shows the paving stone pavement system of 7th Embodiment. Schematic which shows the paving stone pavement system of 8th Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Pavement, 12 ... Roadbed, 14 ... Pavement panel, 14a ... Upper surface outer edge part, 14b ... Upper surface center part, 16 ... Gap, 17 ... Shallow waterway as an open channel, 17 ... Underdrain.

Claims (3)

A paving stone pavement system, wherein a plurality of non-permeable pavement panels are laid on a roadbed with an open gap formed between them to form a pavement, and the gap is connected to a water source. The paving stone pavement system according to claim 1, wherein an upper outer edge portion of each pavement panel is formed lower than a center portion of the upper surface. The paving stone pavement system according to claim 1 or 2, wherein an opening or culvert is attached to the pavement, and the gap is connected to the opening or culvert.

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