JP4815730B2 - Water supply system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water supply system suitable for water supply to planting or the like provided on a concrete base such as a roof of a building or a veranda.
[0002]
[Prior art]
The rooftop of a flat roof type building such as a building is usually finished with presser concrete, etc., so the surface becomes hot due to solar radiation, which causes the air conditioning load to increase, especially in summer, due to the penetration of heat into the building . Also, in large cities, etc., heat is released from a number of rooftops that have been stored by solar radiation, causing a heat island phenomenon.
[0003]
As one of the countermeasures, it has been proposed that a sufficient waterproofing measure is taken on the roof surface and the veranda, and the soil is embanked and vegetated on the soil to make the roof green.
[0004]
[Problems to be solved by the invention]
By the way, an indispensable condition for carrying out greening on the rooftop or the veranda is to take care not to give an excessive weight load to the rooftop or the veranda to be greened. For this reason, while conventionally using special lightweight soil as soil used as a greening foundation, weight reduction of a greening foundation has been performed by making soil into a thin layer of 10 cm or less, for example.
[0005]
However, when the soil is thinned in this way, the water retention capacity of the soil is reduced, the soil is easily dried, and sufficient water cannot be supplied to the plant. For this reason, there existed a possibility of having a bad influence on growth of a plant. In addition, if the soil contains moisture, the temperature buffering function works, the temperature change becomes small, and it contributes to the reduction of the air conditioning load and the suppression of the heat island phenomenon described above. Severe temperature conditions are required for plant growth. In order to prevent such soil drying, sprinklers and other watering facilities are installed to replenish water, but there was a problem that it was difficult to manage thin soils to an appropriate moisture state. . In addition, the watering is inconvenient because it cannot be used by people.
[0006]
The present invention has been made in view of such circumstances, and its purpose is, for example, a water supply system capable of efficiently and simply supplying water to planting provided on a concrete base such as a rooftop of a building or a veranda. Is to provide.
[0011]
[Means for Solving the Problems]
  In order to achieve such an object, the first invention of the present applicationIn the water supply system, a water supply system for supplying water to a water supply target by a water diffusion sheet having water diffusibility, wherein a water supply source is connected to a part of the water conveyance sheet, and the water conveyance system is connected to the water supply system. The sheet can be supplied with water, and a drainage layer is provided on the lower surface side of the water-conducting sheet, and the drainage layer is provided with one or a plurality of voids penetrating both upper and lower side surfaces, and the water-conducting water is provided in the voids. A part of the sheet is hung down.
[0012]
In such a water supply system, by supplying water through the water-conducting sheet, it is possible to efficiently supply water without performing watering as in the prior art, and on the lower surface side of the water-conducting sheet. Since a drainage layer is provided, even if a large amount of water falls during rainy weather, it can be recovered and drained quickly by the drainage layer, preventing excessive moisture from staying in the water-conducting sheet. be able to. Furthermore, since a void portion is provided in the drainage layer and a part of the water-conducting sheet is suspended in the void portion, surplus water flowing through the drainage layer through the portion can be absorbed and introduced again into the water-conducting sheet. Thereby, a drainage layer can be utilized as a water conveyance path | route, water can be spread | diffused more rapidly and widely than a water conveyance sheet | seat, and water can be rapidly supplied also to the location away from the water supply source. From this, compared with the case where it supplies water only with a water-conducting sheet, water can be spread uniformly throughout and the water supply nonuniformity can be reduced.
[0013]
  Also,In the present invention,The drainage layer is formed by a plurality of drainage materials arranged side by side along the lower surface of the water-conducting sheet, and a gap is provided between the drainage materials, and the gap constitutes the gap portion.It is good to do. In this way, a plurality of drainage materials are arranged side by side, a gap is provided between the drainage materials, and this gap is configured as the gap portion, so that a gap portion in which a part of the water-conducting sheet is dripped can be easily obtained. Can be provided.
[0014]
  Also,in frontAn extension piece formed of a material having water conductivity is integrally provided on the lower surface of the water guide sheet, and the extension piece is suspended in the gap.May. In this way, an extended piece formed of a water-conducting material is provided on the lower surface of the water-conducting sheet, and this extended piece is suspended in the gap of the drainage layer so that the inside of the drainage layer is The circulating water can be efficiently absorbed and introduced into the water-conducting sheet.
[0015]
  Also,in frontThe water-permeable sheet is disposed so as to wrap around the drainage material from the outside by extending around the lower surface side of the drainage material through a gap between the drainage materials.May. Thus, the water-conducting sheet extends around the lower surface side of the drainage material, and is disposed so as to wrap the drainage material from the outside, thereby efficiently absorbing the water flowing through the drainage material and introducing the water. Water can be pumped to the adhesive sheet, and a large amount of water can be introduced.
[0016]
  Also,in frontA plurality of water-conducting sheets are laid as the water-conducting sheet, and the side edges of the water-conducting sheet are suspended in the gaps, and formed of a material having water-conductivity between the water-conducting sheets. And connecting the water-conducting sheets to each other through the connecting part, and water is conducted through the water-conducting sheets.May. Thus, the water retention capability of the edge part of each water-conducting sheet can be improved by laying a plurality of water-conducting sheets. Furthermore, the water which distribute | circulates a drainage layer can be collect | recovered by dripping the side edge part of each water-conducting sheet in a space | gap part. Further, by connecting the water-conducting sheets to each other by connecting the connecting parts, water-conducting property between the water-conducting sheets can be ensured, and water can be smoothly distributed to each water-conducting sheet.
[0017]
  Also,in frontA water-conducting sheet is separately laid along the lower surface of the drainage layer.May. Thus, by separately laying the water-conducting sheet on the lower surface side of the drainage layer, water can be dispersed in a wider range, and water can be prevented from flowing only to specific locations in the drainage layer.
[0018]
  Also,in frontThe drainage layer supports the lower surface of the water-conducting sheet at a plurality of parts separated from each other.May be. In this way, the drainage layer supports the lower surface portion of the water-conducting sheet at a plurality of parts separated from each other, so that a continuous portion that is not pressed against the lower surface of the water-conducting sheet is formed, and the water-conducting sheet efficiently drains water. Can diffuse.
[0019]
  Also,The second invention of the present application is:A system for supplying water to a water supply target using a water-conducting sheet having water diffusibility, wherein a water supply source is connected to a part of the water-conducting sheet so that water can be supplied from the water source to the water-conducting sheet. In addition, a drainage layer is provided on the upper surface side of the water-conducting sheet. Thus, by providing a drainage layer on the upper surface of the water-conducting sheet, surplus water from the water-conducting sheet can be widely diffused through the drainage layer on the upper surface side, thereby promptly supplying water to the entire water supply object. Can be spread over.
[0020]
  in this case,The drainage layer is formed of gravel materialMay. Thus, since the drainage layer was formed of gravel-like material, excess water from the water-conducting sheet can be drained smoothly.
[0021]
  Also,in frontProvide a separate drainage layer on the bottom side of the water-conducting sheetMay. Thus, surplus water can be more efficiently diffused by providing a drainage layer also on the lower surface side of the water-conducting sheet.
[0022]
  Also,In each of the above inventions,A water retention sheet is interposed between the water conveyance sheet and the water supply target.May. As described above, by providing the water retention sheet between the water conveyance sheet and the water supply target, the water from the water conveyance sheet can be temporarily held and supplied to the water supply target, thereby absorbing the water absorption of the water supply target. The influence of the capacity and the water conveyance capacity of the water conveyance sheet can be reduced, and good water supply can be performed.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
<< First Embodiment >>
FIG. 1 shows a first embodiment of a water supply system according to the present invention. As shown in FIG. 1, for example, this system has a water-impervious sheet 12 and a drainage on an upper surface 10a of a concrete base 10 such as presser concrete placed on a roof or veranda of a building via a waterproof layer. The material 14, the water-conducting sheet 16, and the water-lifting block 18 are arrange | positioned and comprised.
[0024]
The water-impervious sheet 12 is laid so as to cover the upper surface 10a of the concrete base 10, and shields water between the drainage material 14 and the concrete base 10 to block water penetration into the concrete base 10 side. As this water-impervious sheet 12, a sheet having a root-preventing function for suppressing the elongation of plant roots is preferable.
[0025]
The water-conducting sheet 16 is formed of, for example, a cloth material rich in water absorption, such as a woven fabric or a non-woven fabric. A part of the water-conducting sheet 16 comes into contact with water and absorbs the water by a capillary phenomenon and gradually diffuses to the whole. It has the property to penetrate. A part of the water-conducting sheet 16 is connected to a water supply source (not shown) so that water from the water supply source is gradually diffused and penetrated. Thereby, water is distributed over the entire area where the water-conducting sheet 16 is laid to supply water.
[0026]
The water pumping block 18 is laid and disposed on the entire upper surface of the water-conducting sheet 16. The pumping block 18 is formed by, for example, sintering a pulverized product of tiles, and innumerable fine continuous voids that penetrate between the upper and lower surfaces and cause capillary action are formed therein. ing. Thus, by being arranged close to the upper surface of the water-conducting sheet 16, the water-lifting block 18 plays a role of appropriately sucking up water supplied through the water-conducting sheet 16. The water sucked up by the pumping block 18 in this way helps to keep the concrete base 10 in a moderately wet state, and helps to suppress the temperature rise by its latent heat of vaporization.
[0027]
On the other hand, the drainage material 14 is disposed on the lower surface side of the water-conducting sheet 16 to form the drainage layer according to the present invention. A plurality of the drainage materials 14 are arranged along the lower surface of the water-conducting sheet 16 and play a role of recovering excess water generated from the water-conducting sheet 16. The drainage material 14 is formed of a material that is formed of, for example, a fiber having a flat three-dimensional network structure and contains continuous voids, and water smoothly circulates therein. In addition, since the drainage material 14 is formed of a material having a three-dimensional network structure in this way, the drainage material 14 supports the lower surface portion of the water-conducting sheet 16 in a dotted manner, and therefore, the drainage material 14 is supported at a plurality of parts separated from each other. Become. In this case, the continuous part which is not pressed on the lower surface of the water-conductive sheet 16 is formed, and the water-conductive sheet 16 can diffuse water efficiently.
[0028]
Furthermore, in this embodiment, the drainage material 14 is formed as a flat plate material having a predetermined thickness (for example, about 1 cm). Further, the drainage material 14 is in direct contact with the lower surface of the water-conducting sheet 16 so that excess water from the water-conducting sheet 16 can be quickly recovered. In addition, the drainage material 14 plays a role of entangled with the roots of planting and stabilizing the rooting, and a role of preventing root rot due to excessive moisture during the rainy season.
[0029]
Furthermore, here, a gap 20 is formed between the drainage materials 14, and a part of the water-conducting sheet 16 hangs into the gap 20. That is, as shown in FIG. 1, a slack portion 22 is formed in a part of the water-conducting sheet 16, and the slack portion 22 enters the gap portion 20 so as to hang downward. This slack portion 22 is provided to pump up the surplus water flowing between the drainage materials 14 to the water-conducting sheet 16 again, and the lower end portion thereof contacts the surplus water flowing through the drainage material 14. This is absorbed by capillary action and introduced into the main body of the water-conducting sheet 16.
[0030]
As described above, in this system, the water-conducting sheet 16 is laid on the concrete base 10 and water is supplied to the water-conducting sheet 16 from the water supply source so that the water is diffused and permeated through the water-conducting sheet 16 by capillary action. As a result, sufficient water replenishment is possible without performing watering with a sprinkler or the like as in the prior art. Further, since the drainage material 14 is disposed on the lower surface side of the water-conducting sheet 16, excess water from the water-conducting sheet 16 can be collected and drained. Thereby, even when a large amount of water pours onto the water-conducting sheet 16 during rainy weather, the excess water can be quickly drained, and excessive water can be prevented from staying in the water-conducting sheet 16.
[0031]
Further, a gap portion 20 is formed between the drainage materials 14, and a slack portion 22 generated in the water-conducting sheet 16 hangs into the gap portion 20 to absorb and collect excess water flowing between the drainage materials 14. Therefore, surplus water can be introduced again into the water guide sheet 16 through the slack portion 22. Further, the drainage material 14 can be used as a water conveyance path, whereby water can be diffused more quickly and extensively than the water conveyance sheet 16, and water can be quickly supplied to a location away from the water supply source. From this, compared with the case where it supplies only with the water-conducting sheet 16, water can be spread uniformly throughout and water supply nonuniformity can be reduced.
[0032]
<< Second Embodiment >>
FIG. 2 shows a second embodiment of the water supply system according to the present invention. In this embodiment, as shown in FIG. 2, a strip-like or sheet-like extension piece 24 is integrally provided on the lower surface of the water-conducting sheet 16, and the extension piece 24 is formed between the drainage members 14. The unit 20 is inserted into the unit 20. The extension piece 24 is formed of a material (including the same material as the water-conducting sheet 16) having the property of diffusing and penetrating water by capillary action as with the water-conducting sheet 16. By being inserted into the gap portion 20, the water flowing between the drainage materials 14 is absorbed and pumped into the water guide sheet 16 for introduction. In the present embodiment, the tip of the extended piece 24 enters the lower surface side of the drainage material 14 so that water flowing between the drainage materials 14 can be reliably captured. By providing such an extended piece portion 24 on the lower surface side of the water-conducting sheet 16, water flowing through the drainage layer 14 can be easily obtained without slackening the water-conducting sheet 16 as in the first embodiment. Can be pumped up. In addition, about the width | variety and length of this extension piece part 24, it sets suitably according to the water absorption capability calculated | required for the said extension piece part 24. FIG.
[0033]
<< Third Embodiment >>
FIG. 3 shows a third embodiment of the water supply system according to the present invention. In this embodiment, the water-conducting sheet 16 is mounted so as to wrap around the drainage material 14 from the outside by wrapping around the lower surface side of the drainage material 14 from the gaps 20 at both edges of the drainage material 14. By mounting the water-conducting sheet 16 in such a manner as to wrap the entire drainage material 14 from the outside, excess water collected in the drainage material 14 can be efficiently absorbed into the water-conducting sheet 16 again.
[0034]
<< 4th Embodiment >>
FIG. 4 shows a fourth embodiment of the water supply system according to the present invention. In this embodiment, in the system of the second embodiment shown in FIG. 2, a water retention sheet 26 is interposed between the water conveyance sheet 16 and the water lifting block 18. The water retention sheet 26 is disposed as a buffer material that secures the evaporation amount of the water lifting block 18 or suppresses the pumping power of the water lifting block 18. That is, if the pumping capacity of the pumping block 18 is weak, the water-conducting sheet is sent to the downstream side before the bricks are sufficiently pumped, or conversely, if the pumping capacity of the pumping block 18 is too high, Only the water uplifting brick 18 on the near side is pumped up, so that water is not sent to the downstream side much.
[0035]
As the water retention sheet 26, a woven or knitted fabric having high water retention is used. As the woven or knitted fabric used here, for example, weaving PET raw yarn, impregnating with an uncrosslinked resin, causing cross-linking reaction, or weaving treatment after subjecting PET raw yarn to water absorption treatment Those formed by weaving or slitting a water-soluble resin are preferably used. The water retaining sheet 26 also plays a role of preventing planting roots at this position and a function of enhancing a thermal buffering function. As such a water-retaining sheet 26, for example, trade names “SMAT-A, SMAT-B, SMAT-C, SMAT-D, SMAT-E” manufactured by Seisei Textile Co., Ltd. are preferably used.
[0036]
<< 5th Embodiment >>
FIG. 5 shows a fifth embodiment of the water supply system according to the present invention. In this embodiment, in contrast to the first embodiment shown in FIG. 1, as shown in FIG. 5 (a), a plurality of water-permeable sheets 16a, 16b, 16c, and 16d are laid as the water-conductive sheets, The side edges 17a, 17b, 17c, and 17d of 16a, 16b, 16c, and 16d are suspended in the gap 20 between the drainage materials 14 to absorb the water flowing through the drainage material 14. Further, as shown in FIG. 5 (b), one or a plurality of locations (in this case, between the water-conducting sheets 16b, 16c, and 16d) between one or more of the water-conducting sheets 16a, 16b, 16c, and 16d ( Here, the water-conducting sheets 16b, 16c, and 16d are connected to each other with the connecting member 28 interposed therebetween. Here, the connecting member 28 is formed of a material (for example, the same material as the water-conducting sheet 16) having the property of diffusing and penetrating water by the capillary phenomenon, like the water-conducting sheet 16, and the water-conducting sheets 16b, 16c, and 16d. The water is connected between the water-conducting sheets 16b, 16c, and 16d. Both ends of the connecting member 28 are joined to the upper surfaces of the water-conducting sheets 16b, 16c and 16d. By laying a plurality of water-conducting sheets 16a, 16b, 16c, and 16d as the water-conducting sheets in this way, the water retention capability at the ends of each of the water-conducting sheets 16a, 16b, 16c, and 16d can be increased, thereby Even when the pumping speed of the pumping block 18 is low, it is possible to secure time for sufficient water to reach the pumping block 18.
[0037]
In addition, here, the water-conducting sheet 16a that is separated from the other water-conducting sheets 16b, 16c, and 16d and draws only the water flowing between the drainage materials 14 and conducts the water, and the water-conducting sheets 16b, Although 16c and 16d are mixed, in this invention, all the water-permeable sheets may be connected mutually. Of course, all the water-conducting sheets are sheets that are separated from other water-conducting sheets and pump only the water flowing between the drainage materials 14 and conduct the water, such as the water-conducting sheet 16a of the present embodiment. I do not care.
[0038]
About the connection location and disconnection location of the water guide sheet 16, it selects suitably according to the water supply condition. Similarly, the interval and width of the water guide sheet 16 and the width and length of the connecting member 28 are also appropriately adjusted according to the water supply situation.
[0039]
<< 6th Embodiment >>
FIG. 6 shows a sixth embodiment of the water supply system according to the present invention. In this embodiment, the water-impervious sheet 12 and the water-conducting sheet 16 are laid on the upper surface 10 a of the concrete base 10, and a potted plant 32 is disposed on the water-conducting sheet 16, and the upper surface of the water-conducting sheet 16 is disposed around it. A chip-like brick 34 is spread as a gravel-like material according to the present invention. Between the lower surface of the potted plant 32 and the water-conducting sheet 16, a pumping sheet (not shown) made of nonwoven fabric, woven fabric, cotton cloth or the like is laid so that water can be reliably supplied from the water-conducting sheet 16 to the potted plant. Yes.
[0040]
Thus, the drainage layer 36 by the chip-shaped brick 34 can be formed on the water-conducting sheet 16 by laying the chip-shaped bricks 34 on the upper surface of the water-conductive sheet 16. Excess water from the water conveyance sheet 16 is introduced into the space between the chip-like bricks 34 and discharged through the space. From this, the surplus water from the water-conducting sheet 16 can be quickly spread throughout the drainage layer 36 as in the first to fifth embodiments described above.
[0041]
Note that the gravel-like material according to the present invention is not limited to the chip-like brick 34 as described above, but includes a large number of small granular materials, including bricks having voids continuously formed therein. Any member may be used as long as it has a hole portion through which water can be circulated, such as a braided member formed by binding. For example, you may use the brick etc. by which the groove part was formed in the bottom surface vertically and horizontally.
[0042]
In addition, the drainage material 14 used in the first to fifth embodiments is laid between the water-impervious sheet 12 and the water-conducting sheet 16 as in the seventh embodiment shown in FIG. The water retention sheet 26 used in the fourth embodiment may be laid between the sheet 16 and the drainage layer 36 composed of the chip-like bricks 34.
[0043]
<< Other Embodiments >>
In each of the above embodiments, the case where the water supply system according to the present invention is applied to the rooftop of a building has been described, but the present invention is not limited to this, for example, a veranda portion of a building, a sidewalk, a park, etc. It can also be applied to the road surface of the place where the person goes.
[0044]
In addition, the drainage material 14 is formed of a material having continuous voids, for example, the surface thereof, such as a lawn protection material, as described above. Alternatively, a flat member provided with a large number of protrusions may be used.
[0045]
Moreover, in the said 1st-5th embodiment, although the waste_water | drain layer which concerns on this invention comprises a several drainage material, the space | interval is provided among these drainage materials, and this space | interval is made into the space | gap part which concerns on this invention. The present invention is not limited to such a case. For example, the drainage material may be provided with a cutout portion, a cutout window portion, or the like to form a gap portion. Further, the drainage material is not limited to the flat plate shape as described above, and for example, a sheet shape material may be used. Of course, in this case, it is not necessary to provide a plurality of drainage materials.
[0046]
Moreover, in each said embodiment, you may provide a gradient so that the water which flows through a drainage material may flow smoothly along a predetermined direction, and is drained.
[0047]
Further, the water-conducting sheet 16 and the drainage material 14 may have the functions of other sheets 12 and 26 installed adjacent to each other. For example, in the case of the water conveyance sheet | seat 16, you may integrate with the water retention sheet | seat 26 arrange | positioned at the upper surface side. In the case of the drainage material, it may be integrated with the water-impervious sheet 12 or the water-conducting sheet 16 disposed on the lower surface side thereof. Of course, the water-conducting sheet 16 and the drainage material 14 may be integrated with each other.
[0050]
【The invention's effect】
  Salary of the first inventionAccording to the water system, GuidanceBy supplying water through the water-based sheet, water can be supplied efficiently without performing watering as in the prior art. In addition, since a drainage layer is provided on the lower surface side of the water-conducting sheet, even if a large amount of water falls during rainy weather, it can be recovered by the drainage layer and quickly discharged. It is possible to prevent stagnation of moisture. Furthermore, since a void portion is provided in the drainage layer and a part of the water-conducting sheet is suspended in the void portion, surplus water flowing through the drainage layer through the portion can be absorbed and introduced again into the water-conducting sheet. Thereby, a drainage layer can be utilized as a water conveyance path | route, water can be spread | diffused more rapidly and widely than a water conveyance sheet | seat, and water can be rapidly supplied also to the location away from the water supply source. From this, compared with the case where it supplies water only with a water-conducting sheet, water can be spread uniformly throughout and the water supply nonuniformity can be reduced.
[0051]
  Also, DoubleA number of drainage materials are arranged side by side, a gap is formed between the drainage materials, and the gap is configured as a gap.DoThereby, the space | gap part in which a part of water-conductive sheet hangs down can be provided easily.
[0052]
  Also, GuidanceAn extended piece is integrally provided on the lower surface of the water-based sheet, and the extended piece is allowed to sag into the void of the drainage layer, thereby efficiently absorbing the water flowing through the drainage layer. Can be introduced into the sheet.
[0053]
  Also, ExhaustA water-conducting sheet extends around the lower surface side of the water material, and is disposed so as to wrap the drainage material from the outside.To doThus, water flowing through the drainage material can be efficiently absorbed and pumped to the water-conducting sheet, and a large amount of water can be introduced.
[0054]
  Also, DoubleLaying a number of water-conducting sheetsDoBy the water retention capacity of the end of each water-conducting sheetTheCan be increased. Furthermore, the water which distribute | circulates a drainage layer can be collect | recovered by dripping the side edge part of each water-conducting sheet in a space | gap part. Further, by connecting the water-conducting sheets to each other by connecting the connecting parts, water-conducting property between the water-conducting sheets can be ensured, and water can be smoothly distributed to each water-conducting sheet.
[0055]
  Also, ExhaustBy separately laying the water-conducting sheet on the lower surface side of the water layer, the water can be dispersed in a wider range, and the water can be suppressed from flowing only to specific locations in the drainage layer.
[0056]
  Also, ExhaustThe water layer supports the bottom surface of the water-conducting sheet at multiple locations separated from each otherDoBy this, the continuous part which is not pressed on the lower surface of a water-conducting sheet is formed, and a water-conducting sheet can diffuse water efficiently.
[0057]
  Also,Of the second invention of the present applicationAccording to the water supply system, by providing a drainage layer on the upper surface of the water-conducting sheet, surplus water from the water-conducting sheet can be diffused widely through the drainage layer on the upper surface side, thereby water is supplied to the entire water supply object Can be quickly distributed.
[0058]
  in this case,Drainage layerTheFormed by gravelDoThereby, the excess water from a water-conducting sheet can be drained smoothly.
[0059]
  Also, GuidanceBy providing a drainage layer also on the lower surface side of the aqueous sheet, it is possible to diffuse the excess water more efficiently.
[0060]
  further,A water retention sheet is provided between the water conveyance sheet and the water supply target.RuTherefore, it is possible to temporarily hold water from the water conveyance sheet and supply water to the water supply object, thereby reducing the influence of the water absorption capacity of the water supply object and the water conveyance capacity of the water conveyance sheet. Water can be supplied.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first embodiment of a water supply system according to the present invention.
FIG. 2 is a cross-sectional view showing a second embodiment of a water supply system according to the present invention.
FIG. 3 is a cross-sectional view showing a third embodiment of a water supply system according to the present invention.
FIG. 4 is a cross-sectional view showing a fourth embodiment of a water supply system according to the present invention.
FIG. 5 is a cross-sectional view showing a fifth embodiment of the water supply system according to the present invention.
FIG. 6 is a cross-sectional view showing a sixth embodiment of the water supply system according to the present invention.
FIG. 7 is a cross-sectional view showing a modified example of the sixth embodiment of the water supply system according to the present invention.
[Explanation of symbols]
10 Concrete base
12 Water-proof sheet
14 Drainage material
16 Water-conducting sheet
18 Pumping block
20 Cavity
22 Slack part
24 Extension piece
26 Water retention sheet
28 Connecting members
32 Potted plant
34 Chip brick

Claims (11)

A water supply system for supplying water to a water supply object with a water-permeable sheet having water diffusibility,
A water supply source is connected to a part of the water conveyance sheet so that water can be supplied from the water supply source to the water conveyance sheet, and a drainage layer is provided on the lower surface side of the water conveyance sheet. A water supply system, wherein a gap portion penetrating the surface is provided at one or a plurality of locations, and a part of the water-conducting sheet is suspended in the gap portion. The drainage layer is formed by a plurality of drainage materials arranged side by side along the lower surface of the water-conducting sheet, a gap is provided between the drainage materials, and the gap constitutes the gap portion. The water supply system according to claim 1 , wherein the system is a water supply system. The extending piece portion formed of a material having water conductivity is integrally provided on a lower surface of the water guiding sheet, and the extending piece portion is suspended in the gap portion. The water supply system according to 1 or 2 . The water-conducting sheet is disposed so as to wrap around the drainage material from the outside by extending to the lower surface side of the drainage material through a gap between the drainage materials. The water supply system according to 2 or 3 . A plurality of water-conducting sheets are laid as the water-conducting sheet, and the side edges of the water-conducting sheet are allowed to hang down into the gap, and are formed of a material having water-conductivity between the water-conducting sheets. has been linked portion interposed and claims 1 to 4 together with interconnecting between said water guide sheet via the connecting portion, characterized in that as water is made conductive through between the water guide sheet The water supply system according to any one of the above. The water supply system according to any one of claims 1 to 5 , wherein a water-conducting sheet is separately laid on the lower surface side of the drainage layer along the lower surface. The water supply system according to any one of claims 1 to 6 , wherein the drainage layer supports the lower surface portion of the water-conducting sheet at a plurality of parts separated from each other.   A water supply system for supplying water to an object to be supplied with a water diffusive sheet having water diffusibility, wherein a water supply source is connected to a part of the water permeable sheet so that water can be supplied from the water supply source to the water permeable sheet. In addition, a water supply system characterized in that a drainage layer is provided on the upper surface side of the water-conducting sheet. The water supply system according to claim 8 , wherein the drainage layer is formed of a gravel material. The water supply system according to claim 8 or 9 , wherein another drainage layer is provided on a lower surface side of the water conveyance sheet. The water supply system according to any one of claims 1 to 10 , wherein a water retention sheet is interposed between the water conveyance sheet and the water supply target.

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