JP2006152741A - Rainwater storage unit, greening facility using this rainwater storage unit and underground water storage facility - Google Patents

Rainwater storage unit, greening facility using this rainwater storage unit and underground water storage facility Download PDF

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JP2006152741A
JP2006152741A JP2004348127A JP2004348127A JP2006152741A JP 2006152741 A JP2006152741 A JP 2006152741A JP 2004348127 A JP2004348127 A JP 2004348127A JP 2004348127 A JP2004348127 A JP 2004348127A JP 2006152741 A JP2006152741 A JP 2006152741A
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water
rainwater
storage unit
soil layer
water storage
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JP4472501B2 (en
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Fumio Otsuka
文夫 大塚
Shuichi Tanabe
修一 田辺
Kyoko Tanabe
恭子 田辺
Tomotaka Yanagida
友隆 柳田
Akimi Watanabe
暁美 渡辺
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Createrra Inc
Meiji Rubber and Chemical Co Ltd
Seiki Tokyu Kogyo Co Ltd
Tokyu Construction Co Ltd
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Createrra Inc
Meiji Rubber and Chemical Co Ltd
Seiki Tokyu Kogyo Co Ltd
Tokyu Construction Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108—Rainwater harvesting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure

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  • Cultivation Of Plants (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
  • Sewage (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rainwater storage unit installable even on a slope surface, a greening facility using this rainwater storage unit, and an underground water storage facility. <P>SOLUTION: This rainwater storage unit is composed of a water storage tank, and a soil layer support inserted into the water storage tank; and is characterized in that a connecting part and a flowing water port are arranged on a side surface of the water storage tank, and the flowing water port is formed so as to be cut off from a cut line by arranging the cut line by thinning, and the soil layer support is a structure having a column. A structure of the connecting part may be a structure capable of integrally connecting the mutual water storage tanks, and may be constituted of, for example, a male type connecting part formed by arranging an outward flange in a gutter part projected in a side wall upper end part of the water storage tank and a female type connecting part formed by arranging an inward flange in the gutter part projected in the side wall upper end part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、雨水等の自然水を一時貯留する雨水等貯留用ユニットと、前記雨水等貯留用ユニットを用いて屋上、公園、歩道等に施工する緑化設備並びに地面を掘り下げて形成する地下貯水設備に関する。   The present invention relates to a rainwater storage unit that temporarily stores natural water such as rainwater, a greening facility that is constructed on a rooftop, a park, a sidewalk, or the like using the rainwater storage unit, and an underground water storage facility that is formed by digging the ground. About.

近年では、屋上緑化が積極的に進められており、種々の装置及びシステムが提案されている。屋上緑化設備に関して、例えば、特開２００２−２９４７６６号公報には、周囲を側壁部で囲い防水を施した貯留水槽を形成し、この貯留水槽内に土壌層支持構造体を縦横に敷き並べ、この土壌層支持構造体の上に植栽用土壌層を設けて樹木、草花等を植栽する緑化システムが提案されている。   In recent years, greening of rooftops has been actively promoted, and various devices and systems have been proposed. Regarding rooftop greening facilities, for example, in Japanese Patent Application Laid-Open No. 2002-294766, a water storage tank is formed which is surrounded by a side wall and waterproofed, and a soil layer support structure is laid vertically and horizontally in the water storage tank. A greening system has been proposed in which a soil layer for planting is provided on a soil layer support structure to plant trees, flowers, and the like.

また、特開２００３−３３９２４５号公報には、上面が開口した箱形容器を縦横に引き並べて、これらを吸水配水管で連結し、前記容器内部に天板の下面に脚を設けてなる置き敷きを敷き詰めて、これらの置き敷き上に防根透水シートを施設し、この防根透水シートの上に植栽土を詰めて植栽する屋上緑化装置が提案されている。   Japanese Patent Application Laid-Open No. 2003-339245 discloses a container in which box-shaped containers whose upper surfaces are opened are arranged vertically and horizontally, these are connected by a water absorption pipe, and legs are provided on the lower surface of the top plate inside the container. A rooftop greening device has been proposed in which a root-permeable water-permeable sheet is installed on these laid floors and planted soil is planted on the root-permeable water-permeable sheet.

さらに、一般に都市化された地域では、道路や家屋の周辺の地表面のほとんどがコンクリート等の不浸透面で覆われているから、雨水等は地下に浸透せず低地に流入して家屋を浸水させたり、河川を氾濫させる危険が高まっている。また、水の使用量が年々増大しており、水源地での降雨量が少ないと水不足となる危険がある。そのために水対策が大きくクローズアップされてきている。そこで、特公平４−３５５８０号公報には、雨水を一定時間貯留した後、河川等に順次放流したり、積極的に地下に浸透させることにより、雨水等による河川氾濫、家屋の浸水災害を防止するための雨水等の貯留及び浸透施設が提案されている。   Furthermore, generally in urbanized areas, most of the ground surface around roads and houses is covered with impervious surfaces such as concrete, so rainwater does not penetrate underground and flows into the lowlands, flooding houses. And the risk of flooding rivers is increasing. Also, the amount of water used is increasing year by year, and there is a risk of water shortage if the rainfall at the water source is small. For this reason, water countermeasures have been greatly improved. Therefore, in Japanese Patent Publication No. 4-35580, rainwater is stored for a certain period of time and then discharged sequentially into rivers and actively infiltrated into the basement to prevent river flooding due to rainwater and inundation of houses. A rainwater storage and infiltration facility has been proposed.

このような雨水等の貯留及び浸透施設として、例えば、地面を掘り下げて貯水槽を形成し、前記貯水槽内に所定の空隙率を有し且つ上下左右に連設して地中に埋設しても十分な強度を有する充填体を配設し、これらの充填体の上に遮水シートまたは透水シートを敷き、最上部を砂利、土等で覆った地下貯水施設が提案されている。
特開２００２−２９４７６６号公報 特開２００３−３３９２４５号公報 特公平４−３５５８０号公報 As such rainwater storage and infiltration facilities, for example, a water tank is formed by digging the ground, and has a predetermined porosity in the water tank, and is embedded in the ground by being connected vertically and horizontally. In addition, an underground water storage facility has been proposed in which a packing body having sufficient strength is disposed, a water-impervious sheet or a water-permeable sheet is laid on the packing body, and the uppermost portion is covered with gravel, soil or the like.
JP 2002-294766 A JP 2003-339245 A Japanese Patent Publication No. 4-35580

しかしながら、屋上は、一般に雨水の排水のために一方側に僅かに傾斜している。そのために、特開２００２−２９４７６６号公報記載のように、周囲を側壁部で囲い防水を施した貯留水槽を形成する場合には、底面が傾斜することになり傾斜の上側では充分な貯水ができない。貯水ができない傾斜の上側では水の供給が無く植物が枯れるおそれがある。そこで、貯水槽の底面を水平にするためには、断面くさび状の水平出し部材を用いたり、軽量モルタルや軽量砂材等を敷き込まなければならない。このように、水平出し部材や軽量砂材等を用いると、施工に手間がかかるばかりでなく、全体の施工費も増大することになる。   However, the roof is generally slightly inclined to one side for drainage of rainwater. Therefore, as described in JP-A-2002-294766, when a water storage tank is formed which is surrounded by a side wall and waterproofed, the bottom surface is inclined and sufficient water cannot be stored on the upper side of the inclination. . On the upper side of the slope where water cannot be stored, there is no supply of water and the plant may die. Therefore, in order to level the bottom surface of the water storage tank, it is necessary to use a leveling member having a wedge-shaped cross section, or to lay a lightweight mortar, a lightweight sand material or the like. As described above, when a leveling member, a lightweight sand material, or the like is used, not only labor is required for construction, but also the overall construction cost increases.

特開２００３−３３９２４５号公報記載の屋上緑化装置では、箱形容器を縦横に引き並べて、これらを吸水配水管で連結しているために、傾斜面にも対応することができるものの、各箱形容器を吸水配水管で連結するために施工作業に手間がかかるという問題がある。   In the rooftop greening device described in Japanese Patent Application Laid-Open No. 2003-339245, the box-shaped containers are arranged vertically and horizontally, and these are connected by the water absorption pipes. There is a problem that construction work takes time to connect the vessel with the water distribution pipe.

また、特公平４−３５５８０号公報記載のような地下貯水施設は、地面を掘り下げて水平な底面とした貯水槽を形成しなければならないから、傾斜地を利用してそのまま傾斜した貯水槽とすることはできなかった。特に、道路わきや歩道わき等に貯水利用の緑化施設や貯水槽を設ける場合には、傾斜させることが好ましいが、従来公知の地下貯水施設では傾斜させることは何ら考慮されていない。   In addition, underground water storage facilities such as those described in Japanese Examined Patent Publication No. 4-35580 have to form a water storage tank with a horizontal bottom by digging the ground, so that the storage tank is inclined as it is by using an inclined land. I couldn't. In particular, when a greening facility or a water storage tank for storing water is provided on a side of a road or on a sidewalk, it is preferable to incline it. However, in the known underground water storage facility, inclining is not considered at all.

この発明は、かかる現況に鑑みてなされたもので、傾斜面にも設置可能な雨水等貯留用ユニットと前記雨水等貯留用ユニットを用いた緑化設備並びに地下貯水設備を提供することを目的とするものである。   The present invention has been made in view of the current situation, and an object thereof is to provide a rainwater storage unit that can be installed on an inclined surface, and a greening facility and an underground water storage facility using the rainwater storage unit. Is.

この発明は上記目的を達成するために次のような構成とした。即ち、この発明に係る雨水等貯留用ユニットは、貯水槽と前記貯水槽に挿入される土壌層支持体とからなり、前記貯水槽の側面には連結部と流水口が設けられており、流水口は薄肉による切取線を設け、切取線から切り取ることができるように形成されており、土壌層支持体は、支柱を備えた透水可能な構造体であることを特徴とする。連結部は、両者が一体に結合できる構造であればよく、例えば、貯水槽の側壁上端部に突設した樋部に外向きフランジを設けてなる雄形連結部と、側壁上端部に突設した樋部に内向きフランジを設けてなる雌形連結部とから構成してもよい。連結部は、貯水槽の側壁上端部に突設した樋部に外向きフランジを設けてなる雄形連結部と、側壁上端部に前記樋部の断面形状に対応した凹部を設けてなる雌形連結部とすることもできる。
また、流水口は、流量を調整できるように、流水口を形成する切取線は複数設け、流水口の高さを順次深くすることができるように段状に形成しておき、適宜の切取線から切り取ることによって大きさを変更できることが好ましい。また、前記土壌層支持体は、天板と支柱とからなり、天板と支柱とは一体に形成されたものであると、着脱自在に形成されたものであるとを問わない。天板には、いわゆる板状体に限定されるものではなく、枠体であってもよく、支柱を一体に形成しまたは着脱自在に取り付けることができる構造体のすべてを含む。
前記貯水槽と前記貯水槽に挿入される土壌層支持体とは、平面四角形状に形成することが好ましい。また、前記貯水槽の底面に、土壌層支持体の支柱を嵌合する嵌合部を設けることが好ましい。 In order to achieve the above object, the present invention is configured as follows. That is, the rainwater storage unit according to the present invention comprises a water storage tank and a soil layer support inserted into the water storage tank, and a connecting portion and a water outlet are provided on a side surface of the water storage tank. The mouth is provided with a thin-walled cut line so that it can be cut off from the cut line, and the soil layer support is a water-permeable structure provided with struts. The connecting portion only needs to have a structure that allows both to be integrally coupled. For example, a male connecting portion in which an outward flange is provided on the flange portion protruding from the upper end portion of the side wall of the water storage tank, and a protruding portion provided at the upper end portion of the side wall. You may comprise from the female connection part which provides an inward flange in the collar part. The connecting part has a male connecting part in which an outward flange is provided on the flange part protruding from the upper end part of the side wall of the water storage tank, and a female form in which a concave part corresponding to the cross-sectional shape of the flange part is provided in the upper end part of the side wall. It can also be a connecting part.
In addition, the water outlet is provided with a plurality of cut lines for forming the water outlet so that the flow rate can be adjusted, and is formed in a step shape so that the height of the water outlet can be made deeper and cut from an appropriate cut line. It is preferable that the size can be changed. Moreover, the said soil layer support body consists of a top plate and a support | pillar, and it does not ask | require that it is formed so that attachment or detachment is possible if the top plate and a support | pillar are formed integrally. The top plate is not limited to a so-called plate-like body, and may be a frame body, and includes all structures that can be integrally formed with a support or can be detachably attached.
The water storage tank and the soil layer support inserted into the water storage tank are preferably formed in a planar square shape. Moreover, it is preferable to provide the fitting part which fits the support | pillar of a soil layer support body in the bottom face of the said water tank.

また、この発明に係る雨水等貯留用ユニットを用いた緑化設備は、上記の雨水等貯留用ユニットを使用してなる緑化施設であって、前記雨水等貯留用ユニットを縦横に敷き並べ、土壌層支持体の上に土砂侵入防止材を積層し、又は土砂侵入防止材を積層しないで植栽用の土壌層を形成してなり、前記土壌層支持体には貯水槽内の雨水等を吸い上げる吸水材が土壌層に達するように設けられていることを特徴とする。敷き並べた前記雨水等貯留用ユニットの外周側に化粧カバーを設けることが好ましい。このように化粧カバーを設けた場合には、植栽用の土壌層の崩れを防止することができる。また、敷き並べた前記雨水等貯留用ユニットのうちの１又は２以上に水位制御手段を設けることが好ましい。水位制御手段を設けた場合には、雨水等の流入量が増しても貯水槽内の水位を一定に保つことができる。   Further, a greening facility using the rainwater storage unit according to the present invention is a greening facility using the rainwater storage unit, wherein the rainwater storage units are arranged vertically and horizontally, and a soil layer Water absorption for laminating soil and sand intrusion prevention material on the support, or forming a soil layer for planting without laminating the earth and sand intrusion prevention material, and sucking rainwater etc. in the water tank into the soil layer support The material is provided so as to reach the soil layer. It is preferable to provide a decorative cover on the outer peripheral side of the rainwater storage units arranged side by side. When the decorative cover is provided in this way, the soil layer for planting can be prevented from collapsing. Moreover, it is preferable to provide a water level control means in one or more of the rainwater storage units arranged side by side. When the water level control means is provided, the water level in the water storage tank can be kept constant even if the inflow amount of rainwater or the like increases.

また、この発明に係る雨水等貯留用ユニットを用いた地下貯水設備は、上記の雨水等貯留用ユニットを使用してなる地下貯水設備であって、地面を掘り下げて形成した凹部に前記雨水等貯留用ユニットを敷き並べ、土壌層支持体の上に土砂侵入防止材を積層し、又は土砂侵入防止材を積層しないで土砂による被覆層を設けたことを特徴とする。雨水等貯留用ユニットを構成する貯水槽には、雨水等の流入口と、貯留水が一定の水位を超えたときに排水するための流出口を設けておくことが好ましい。地面を掘り下げて形成した凹部は、雨水等が徐々に地中に浸透するように浸透性凹部としてもよい。浸透性凹部とした場合には、地下水の涵養が可能となる。   Further, an underground water storage facility using the rainwater storage unit according to the present invention is an underground water storage facility using the rainwater storage unit described above, and stores the rainwater storage in a recess formed by digging the ground. It is characterized in that a unit for laying is arranged and a sediment intrusion prevention material is laminated on a soil layer support, or a covering layer made of earth and sand is provided without laminating a sediment intrusion prevention material. It is preferable to provide an inflow port for rainwater or the like and an outflow port for discharging water when the stored water exceeds a certain water level in the water storage tank constituting the rainwater storage unit. The recess formed by digging the ground may be a permeable recess so that rainwater or the like gradually permeates into the ground. In the case of permeable recesses, groundwater can be recharged.

この発明に係る雨水等貯留用ユニットは、貯留槽と土壌層支持体とかならなる簡単な構造体であり、防水機能を有する貯留水槽を形成する必要はなく、縦横に連結して敷き並べるだけであるから、施工が簡単である。また、独立した雨水等貯留用ユニットを用いることにより、水平面はもちろん、傾斜面にも施工することができる。従って、傾斜した屋上や道路、歩道を利用した緑化設備又は地下貯水設備として好適である。   The rainwater storage unit according to the present invention is a simple structure consisting of a storage tank and a soil layer support, and it is not necessary to form a storage tank having a waterproof function. Because there is, construction is easy. In addition, by using an independent storage unit for rainwater, it can be applied to an inclined surface as well as a horizontal surface. Therefore, it is suitable as a greening facility or an underground water storage facility using an inclined rooftop, road, or sidewalk.

この発明に係る雨水等貯留用ユニットを用いた緑化設備は、傾斜した屋上や道路、歩道を利用した緑化設備として好適である。また、雨水等貯留用ユニットを敷き並べるだけであるから、容易に増減することができ、あるいは容易に移動させたり季節や用途に応じて対応することができる。   The greening facility using the rainwater storage unit according to the present invention is suitable as a greening facility using an inclined rooftop, road, or sidewalk. In addition, since only storage units such as rainwater are arranged, it can be easily increased or decreased, or can be easily moved or adapted according to the season and application.

この発明に係る雨水等貯留用ユニットを用いた地下貯水設備は、傾斜面を利用して施工することができ、土地を有効に利用した地下貯水設備とすることができる。また、傾斜面を利用することができることから、容易に増設することができる。   The underground water storage facility using the rainwater storage unit according to the present invention can be constructed using an inclined surface, and can be an underground water storage facility that effectively uses land. Moreover, since an inclined surface can be utilized, it can be expanded easily.

以下に、この発明に係る雨水等貯留用ユニットの実施形態について詳細に説明する。
図１に示すように、雨水等貯留用ユニット１は、貯水槽２と前記貯水槽２内に挿入される土壌層支持体３とからなる。前記貯水槽２を、図２〜図８に基づいて説明する。前記貯水槽２は、平面四角形状の上面が開口した箱形容器であって、四周の側壁２０には互いに嵌合して積み重ねられるように水平段部２１が形成されている。側壁２０は、前記水平段部２１によって底部側の下段側壁２０ａが上方側の上段側壁２０ｂに嵌合するように形成される。 Hereinafter, embodiments of a rainwater storage unit according to the present invention will be described in detail.
As shown in FIG. 1, the rainwater storage unit 1 includes a water tank 2 and a soil layer support 3 inserted into the water tank 2. The water tank 2 will be described with reference to FIGS. The water storage tank 2 is a box-shaped container having an open top surface having a rectangular plane shape, and a horizontal stepped portion 21 is formed on the four side walls 20 so as to be fitted and stacked. The side wall 20 is formed by the horizontal step portion 21 so that the lower side wall 20a on the bottom side is fitted to the upper side wall 20b on the upper side.

側壁２０に水平段部２１を形成することによって貯水槽２は互いに嵌合することができるから、保管・運搬時に場所をとらず無駄なスペースを省くことができ、高積みした場合にも崩れ難いとともに、側壁全体の剛性を増大させることができる。このように側壁２０に水平段部２１を設けることは、貯水槽２の平面を大きく形成したり、側壁の高さを高く形成する場合に有効である。また、水平段部２１を形成することなく、単に側壁２０を底部から開口側に向かって次第に外側に傾斜するように形成し、互いに嵌合するように形成してもよい。   Since the water storage tanks 2 can be fitted to each other by forming the horizontal stepped portion 21 on the side wall 20, it is possible to save space and save space during storage and transportation, and it is difficult to collapse even when stacked high. At the same time, the rigidity of the entire side wall can be increased. Providing the horizontal stepped portion 21 on the side wall 20 in this way is effective when forming a large plane of the water storage tank 2 or increasing the height of the side wall. Further, the side wall 20 may be formed so as to be gradually inclined outward from the bottom toward the opening without forming the horizontal step portion 21 and may be formed so as to be fitted to each other.

さらに、前記貯水槽２の底部内面には補強リブ２２が設けられており、四周の側壁２０には連結部２３と流水口２４が設けられている。前記補強リブ２２は、図２及び図３に示すように、下段側壁２０ａとほぼ同じ高さの縦リブと横リブからなる格子状リブで形成されており、中央部と四隅部には、上記土壌層支持体３の支柱を固定する嵌合部２２ａ、２２ｂが形成されている。前記嵌合部２２ａは、土壌層支持体３の支柱を嵌合可能な大きさの円形リブであって、縦リブと横リブの交差部に形成されている。一方、嵌合部２２ｂは、縦リブと横リブを湾曲リブで連結することによって、四隅の側壁との間に形成されている。   Further, a reinforcing rib 22 is provided on the inner surface of the bottom of the water storage tank 2, and a connecting portion 23 and a water flow port 24 are provided on the four side walls 20. As shown in FIGS. 2 and 3, the reinforcing ribs 22 are formed by lattice ribs composed of vertical ribs and horizontal ribs that are substantially the same height as the lower side wall 20a. Fitting portions 22a and 22b for fixing the struts of the soil layer support 3 are formed. The fitting portion 22a is a circular rib having a size capable of fitting the support of the soil layer support 3, and is formed at the intersection of the vertical rib and the horizontal rib. On the other hand, the fitting part 22b is formed between the side walls of the four corners by connecting the vertical rib and the horizontal rib with curved ribs.

前記嵌合部２２ａ、２２ｂは、土壌層支持体３の支柱の断面形状に合わせて形成することが好ましく、支柱の断面形状が四角形であれば嵌合部２２ａ、２２ｂも四角形に形成すればよい。また、嵌合部２２ａ、２２ｂは、支柱の断面形状に合わせたリブ形状とすることなく補強リブ２２を単に切り欠くことによって形成してもよく、縦リブと横リブによって囲まれた部分をそのまま嵌合部としてもよいし、支柱が嵌合可能な構造であれば特に限定されるものではない。また、前記補強リブ２２は、側壁２０に対して斜め方向に設けてもよい。   The fitting portions 22a and 22b are preferably formed in accordance with the cross-sectional shape of the strut of the soil layer support 3, and if the cross-sectional shape of the strut is a quadrangle, the fitting portions 22a and 22b may be formed in a quadrangle. . Further, the fitting portions 22a and 22b may be formed by simply notching the reinforcing rib 22 without forming a rib shape that matches the cross-sectional shape of the support column, and a portion surrounded by the vertical rib and the horizontal rib is left as it is. It is good also as a fitting part, and if it is a structure where a support | pillar can be fitted, it will not specifically limit. Further, the reinforcing rib 22 may be provided in an oblique direction with respect to the side wall 20.

次に、四周の側壁２０に設けられた連結部２３と流水口２４について説明する。連結部２３は、四周の各側壁上端部に設けられており、外向きフランジを有する雄形連結部２５と、内向きフランジを有する雌形連結部２６とからなる。前記雄形連結部２５と雌形連結部２６とは、互いに対向する位置に設けられている。雄形連結部２５は、半円形状の樋部２５ａの先端にフランジ２５ｂを外向きに設けてなり、雌形連結部２６は、半円形状の樋部２６ａの先端にフランジ２６ｂを内向きに設けてなる。   Next, the connection part 23 and the water flow port 24 provided in the four-sided side wall 20 will be described. The connecting portion 23 is provided at the upper end of each side wall of the four circumferences, and includes a male connecting portion 25 having an outward flange and a female connecting portion 26 having an inward flange. The male connection part 25 and the female connection part 26 are provided at positions facing each other. The male connecting portion 25 is provided with a flange 25b outwardly at the tip of the semicircular flange 25a, and the female connecting portion 26 is provided with the flange 26b inwardly at the tip of the semicircular flange 26a. It is provided.

前記フランジ２５ｂの外径を樋部２６ａの内径より小さく形成し、樋部２５ａの外径をフランジ２６ｂの内径より小さく形成することによって、前記半円形状の樋部２５ａとフランジ２５ｂは、半円形状の樋部２６ａとフランジ２６ｂ内側に嵌合し、フランジ２５ｂとフランジ２６ｂとが係合する。このように、連結部２３を四周の各側壁上端部に設けることによって、上記貯水槽２は、水平面において縦横いずれの方向へも連結することができる。   By forming the outer diameter of the flange 25b to be smaller than the inner diameter of the flange portion 26a and forming the outer diameter of the flange portion 25a to be smaller than the inner diameter of the flange 26b, the semicircular flange portion 25a and the flange 25b are semicircular. The shape is fitted inside the flange portion 26a and the flange 26b, and the flange 25b and the flange 26b are engaged. Thus, by providing the connecting portion 23 at the upper end of each side wall of the four circumferences, the water storage tank 2 can be connected in either the vertical or horizontal direction on the horizontal plane.

流水口２４は、図８に示すように、薄肉による切取線２７を複数設け、任意の切取線２７から切取線によって囲まれた側壁を切り取ることによって大きさを変更することができるように形成されている。前記複数の切取線２７は、図示する実施形態では、二重の点線で示し、上方が拡がった一対の斜めの線と前記斜めの線の下端を連結する水平な線とからなる切取線２７ａと、前記切取線２７ａの斜めの線と連結する垂直な線と水平な線とからなる切取線２７ｂと、前記切取線２７ｂの垂直な線と連結する水平な線と上方が窄まった斜めの線とからなる切取線２７ｃによって構成されている。このように、切取線２７を方向を変えて設けることによって、切り取る際に他の方向の切取線から切り取られることを防止することができる。   As shown in FIG. 8, the flowing water port 24 is formed such that a plurality of thin cut lines 27 are provided, and the size can be changed by cutting a side wall surrounded by the cut lines from an arbitrary cut line 27. In the illustrated embodiment, the plurality of cut lines 27 are indicated by double dotted lines, the cut lines 27a including a pair of diagonal lines extending upward and a horizontal line connecting the lower ends of the diagonal lines, A cut line 27b composed of a vertical line and a horizontal line connected to the diagonal line of the cut line 27a, a horizontal line connected to the vertical line of the cut line 27b, and a diagonal line narrowed upward. It is constituted by. Thus, by providing the cut line 27 in a different direction, it is possible to prevent the cut line 27 from being cut off from the cut line in another direction.

切取線２７は、上記のように複数の方向と段状に設けたから、例えば、切取線２７ｃに沿って切り取れば、図８（Ｂ）に示すように、台形状の流水口２４ａが形成され、切取線２７ｂに沿って切り取れば、図８（Ｃ）に示すように、四角形状の流水口２４ｂが形成され、切取線２７ａに沿って切り取れば、図８（Ｄ）に示すように、逆台形状の流水口２４ｃが形成されることになる。前記流水口をいずれの大きさとするかは、緑化設備や地下貯水設備を形成する際に、地形や全体の大きさ等によって適宜決定すればよい。   Since the cut line 27 is provided in a plurality of directions and steps as described above, for example, if the cut line 27c is cut along the cut line 27c, a trapezoidal water outlet 24a is formed as shown in FIG. 8B, and the cut line 27b is formed. 8C, a rectangular water outlet 24b is formed as shown in FIG. 8C, and an inverted trapezoidal water outlet as shown in FIG. 8D is formed along the cutoff line 27a. 24c is formed. The size of the water outlet may be appropriately determined according to the topography, the overall size, or the like when the greening facility or the underground water storage facility is formed.

尚、上記実施形態では、連結部２３を半円形状の樋部２５ａ，２６ａの先端にフランジ２５ｂ、２６ｂを設ける構成としたが、半円形状に限定するものではなく、Ｖ字形、Ｕ字形、台形等の任意の形状とすることができる。また、図７（Ａ）に示すように、雄形連結部２５´は、樋部２５ａ´の長さを長くし、雌形連結部は、図７（Ｂ）に示すように、前記雌形連結部２６の樋部とフランジを省略して、前記雄形連結部２５´の樋部２５ａ´の断面形状に対応した凹部２６ｃを側壁上端部に設ける。この場合、図７（Ｃ）に示すように、雄形連結部２５´の樋部２５ａ´の外周に雌形連結部の凹部２６ｃが係合して貯水槽２同士を連結することができる。   In addition, in the said embodiment, although the connection part 23 was set as the structure which provided the flanges 25b and 26b in the front-end | tip of semicircle shaped collar part 25a, 26a, it is not limited to a semicircle shape, V-shape, U-shape, It can be made into arbitrary shapes, such as a trapezoid. Further, as shown in FIG. 7 (A), the male connecting portion 25 ′ increases the length of the collar portion 25a ′, and the female connecting portion has the female shape as shown in FIG. 7 (B). The flange part and flange of the connecting part 26 are omitted, and a recess 26c corresponding to the cross-sectional shape of the flange part 25a 'of the male connecting part 25' is provided at the upper end of the side wall. In this case, as shown in FIG. 7 (C), the recesses 26c of the female connecting portion can be engaged with the outer periphery of the flange 25a 'of the male connecting portion 25' to connect the water storage tanks 2 to each other.

流水口２４も、複数の方向に設けた切取線２７によって形成することなく、単に一対の垂直な切取線の間に水平な切取線を複数段設けることにより、上段の切取線から切り取ることによって、流水口２４の大きさを変更するようにしてもよい。その他、流水口２４の大きさを変更できる切取線であればよい。また、上記実施形態では、連結部２３の内側に流水口を設けたが、連結部２３と流量調整口とは位置をずらして設けてもよい。この場合には、連結部は単にフックにより形成し、流水口は突設した樋状突起により雨水等が流れるようにしてもよい。   The flow outlet 24 is not formed by the cut lines 27 provided in a plurality of directions, but simply by providing a plurality of horizontal cut lines between a pair of vertical cut lines, by cutting from the upper cut line, You may make it change a magnitude | size. In addition, any cutoff line that can change the size of the water outlet 24 may be used. Moreover, in the said embodiment, although the water flow port was provided inside the connection part 23, you may provide the connection part 23 and the flow volume adjustment port by shifting a position. In this case, the connecting portion may be simply formed by a hook, and the water outlet may be configured to allow rainwater or the like to flow through a protruding hook-shaped protrusion.

次に、上記貯水槽２に挿入される土壌層支持体３を、図１，図９〜１１に基づいて説明する。土壌層支持体３は、天板３０と、前記天板３０に着脱自在に組み立てられる支柱３１によって構成される。前記天板３０は、貯水槽２とほぼ同じ大きさの平面四角形状であって、板状体３２の側端に下向きの縁枠３３を設け、上面には透孔３４，３５を設けるとともに、中央部と四隅部に支柱３１の上部を嵌合する嵌合部３６を設けることによって形成されている。   Next, the soil layer support body 3 inserted in the said water tank 2 is demonstrated based on FIG. 1, FIG. The soil layer support 3 is constituted by a top plate 30 and a support 31 that is detachably assembled to the top plate 30. The top plate 30 has a planar quadrangular shape that is substantially the same size as the water storage tank 2, and is provided with a downward edge frame 33 at the side end of the plate-like body 32, and through holes 34 and 35 on the upper surface. It is formed by providing the fitting part 36 which fits the upper part of the support | pillar 31 in a center part and four corner parts.

前記透孔３４の内周面は、縁枠３３よりも高さの低い下向きの円形リブ３４ａによって縁取られており、透孔３５の内周面は、同じくリブ３５ａによって縁取られている。このような円形リブによって縁取ることによって板状体３２の剛性が増大する。前記嵌合部３６は、板状体３２の下方に突出するように設け筒部３６ａの内側に透孔を有するストッパー３６ｂを設けてなる。筒部３６ａは、高さが縁枠３３とほぼ同じであって、支柱３１の上部を嵌合可能な大きさに形成されている。   The inner peripheral surface of the through hole 34 is edged by a downward circular rib 34a having a height lower than that of the edge frame 33, and the inner peripheral surface of the through hole 35 is also edged by the rib 35a. The edge of the circular rib increases the rigidity of the plate-like body 32. The fitting portion 36 is provided so as to protrude below the plate-like body 32, and is provided with a stopper 36b having a through hole inside the cylindrical portion 36a. The cylindrical portion 36a has a height that is substantially the same as that of the edge frame 33, and is formed in a size that allows the upper portion of the column 31 to be fitted.

前記ストッパー３６ｂは筒部３６ａの内側であれば上端部でも中間部でも任意に設けることができる。ストッパー３６ｂを筒部３６ａの上端部に設ける場合には、板状体３２と同一面とすることができる。前記ストッパー３６ｂを筒部３６ａの中間部に設けた場合には、上面開口部にも支柱３１の下端部を嵌合することができるから、土壌層支持体３を多段に積み重ねることができる。また、ストッパー３６ｂの透孔は、貯水槽２内の雨水等を上部の植栽用土壌層に吸い上げるための吸水材を支柱内に通す挿通孔として利用することもできる。   The stopper 36b can be arbitrarily provided at the upper end portion or the intermediate portion as long as it is inside the cylindrical portion 36a. When the stopper 36b is provided on the upper end portion of the cylindrical portion 36a, the stopper 36b can be flush with the plate-like body 32. In the case where the stopper 36b is provided in the middle part of the cylindrical part 36a, the lower end part of the support column 31 can be fitted to the upper surface opening part, so that the soil layer support 3 can be stacked in multiple stages. Moreover, the through-hole of the stopper 36b can also be used as an insertion hole through which a water-absorbing material for sucking rainwater or the like in the water storage tank 2 into the upper soil layer for planting is passed through the support column.

尚、土壌層支持体３は、上記実施形態のように分割できる構成ではなく、天板３０と支柱３１とを一体に形成したものであってもよい。また、透孔３４、３５の形状及び大きさは任意であって格子状や網目状であってもよい。また、天板３０の下面には、任意の形状の補強リブを設けてもよい。この発明における天板には、いわゆる板状体に限定されるものではなく、枠体であってもよく、支柱を一体に形成しまたは着脱自在に取り付けることができる透水可能な構造体のすべてを含む。   In addition, the soil layer support body 3 is not the structure which can be divided | segmented like the said embodiment, The top plate 30 and the support | pillar 31 may be formed integrally. Further, the shape and size of the through holes 34 and 35 are arbitrary, and may be a lattice shape or a mesh shape. Moreover, you may provide the reinforcement rib of arbitrary shapes in the lower surface of the top plate 30. FIG. The top plate according to the present invention is not limited to a so-called plate-like body, and may be a frame body. All of the water-permeable structures that can be integrally formed with a column or can be detachably attached. Including.

次に、上記構成の雨水等貯留用ユニット１を用いた緑化設備の実施形態について説明する。図１２は、緑化設備の一例を示す。貯水槽２を縦横に敷き並べて側面に設けた雄形連結部２５と雌形連結部２６を嵌合させて連結する。貯水槽２を連結する際には、前記雄形連結部２５と雌形連結部２６内に形成した切取線２７の適宜の切取線から切り取ることによって流水口２４を形成する。切取線の切り取る位置は、貯水槽２を配設する面の傾斜角度や雨水等の流入量等を考慮して決めればよい。前記貯水槽２内に挿入した土壌層支持体３は、支柱３１が貯水槽２底部に形成された嵌合部２２ａ、２２ｂに嵌合固定されているから、貯水槽２内に確実に位置決めされる。土壌層支持体３は、貯水槽２の深さに応じて、複数段に積み重ねることができる。   Next, an embodiment of a greening facility using the rainwater storage unit 1 having the above configuration will be described. FIG. 12 shows an example of a greening facility. The water storage tank 2 is laid vertically and horizontally and the male connection part 25 and the female connection part 26 provided on the side surface are fitted and connected. When the water storage tank 2 is connected, the water outlet 24 is formed by cutting off the appropriate cut line 27 of the cut line 27 formed in the male connection part 25 and the female connection part 26. The cutting position of the cutting line may be determined in consideration of the inclination angle of the surface on which the water storage tank 2 is disposed, the inflow amount of rainwater, and the like. The soil layer support 3 inserted into the water tank 2 is securely positioned in the water tank 2 because the support column 31 is fitted and fixed to the fitting portions 22a and 22b formed at the bottom of the water tank 2. The The soil layer support 3 can be stacked in multiple stages according to the depth of the water storage tank 2.

この貯水槽２内に挿入される土壌層支持体３の支柱の１つ以上には、貯水槽２内の雨水等を土壌層支持体上に積層した土壌層に吸い上げるように、吸水材４０が充填されている。この土壌層支持体３によって大きな空間が形成されるから、この空間に雨水等を貯留することができ、貯留された雨水等は吸水材４０によって吸い上げられる。尚、土壌層支持体３は、実施形態の構造に限定されるものではなく、空隙率が大きく植栽用土壌層や植物などの荷重に耐える構造のものであればよく、公知の構造体を使用することができる。   One or more struts of the soil layer support 3 inserted into the water tank 2 are provided with a water absorbing material 40 so as to suck up rainwater or the like in the water tank 2 into the soil layer laminated on the soil layer support. Filled. Since a large space is formed by the soil layer support 3, rainwater or the like can be stored in this space, and the stored rainwater or the like is sucked up by the water absorbing material 40. In addition, the soil layer support body 3 is not limited to the structure of embodiment, What is necessary is just a thing of the structure which can bear the load of the soil layer for planting, a plant, etc. with a large porosity, and a well-known structure is used for it. Can be used.

土壌層支持体３の上には土砂侵入防止材として不織布などの透水性シート４１が敷設され、さらにその上に植栽用の土壌層が４２が形成される。土壌層４２は、透水性シート４１を敷設し、敷き並べた貯水槽２の外周面に化粧カバー４３を取り付けた後に形成するのが好ましい。この化粧カバー４３には、例えば、再生プラスチック等により形成された化粧面を有する合成樹脂板を使用することができ、土壌層４２の崩れを防止できるものであればよい。上記吸水材４０の上端は、透水性シート４１を貫通して土壌層４２内に位置している。前記土壌層４２には、各種の植物を植栽することができ、草花４５や樹木４６を適宜植栽すればよい。上記緑化設備は、雨水等貯留用ユニット１を縦横に敷き並べることによって形成することができるから、傾斜した屋上や道路や歩道を利用して形成することができる。   A water-permeable sheet 41 such as a nonwoven fabric is laid on the soil layer support 3 as a soil and sand intrusion preventing material, and a soil layer 42 for planting is further formed thereon. The soil layer 42 is preferably formed after the water permeable sheet 41 is laid and the decorative cover 43 is attached to the outer peripheral surface of the water storage tank 2 that is laid. For this decorative cover 43, for example, a synthetic resin plate having a decorative surface formed of recycled plastic or the like can be used as long as it can prevent the soil layer 42 from collapsing. The upper end of the water absorbing material 40 penetrates the water permeable sheet 41 and is located in the soil layer 42. Various kinds of plants can be planted in the soil layer 42, and plants 45 and trees 46 may be planted as appropriate. Since the greening facility can be formed by laying the rainwater storage units 1 vertically and horizontally, it can be formed by using an inclined rooftop, road or sidewalk.

尚、図１２に示すように、貯水槽２を敷き並べた下流側には、貯留水の水位を一定以下に制御するために、オリフィスやオーバーフロー管等の水位制御手段４７を設けておくことが好ましい。また、貯水槽２を敷き並べた上流側には、図示するのを省略するが、水位を感知して作動するポンプを設けて、日照りが続いて貯水槽２内の貯留水が不足したような場合に給水するようにしてもよい。尚、上記実施形態では土壌層支持体３の上に透水性シート４１を敷設したが、土壌層支持体３の天板自体が網目状等により土砂の侵入を防止するよう形成されている場合には、透水性シートのような土砂侵入防止材を省略することができる。   As shown in FIG. 12, a water level control means 47 such as an orifice or an overflow pipe may be provided on the downstream side where the water storage tanks 2 are arranged in order to control the water level of the stored water below a certain level. preferable. Further, although not shown in the drawing, the upstream side where the water tanks 2 are laid out is provided with a pump that operates by sensing the water level, and the sun continues and the stored water in the water tank 2 is insufficient. In some cases, water may be supplied. In the above embodiment, the water permeable sheet 41 is laid on the soil layer support 3. However, when the top plate itself of the soil layer support 3 is formed to prevent intrusion of earth and sand by a mesh shape or the like. Can omit earth and sand intrusion prevention materials such as water-permeable sheets.

次に、上記構成の雨水等貯留用ユニット１を用いた地下貯水設備の実施形態について説明する。図１３は、歩道の下に設けた地下貯水施設５０の一例を示す。地下貯水施設５０を形成するには、まず、歩道５３の地面を掘り下げて雨水貯留用ユニット１を配設する凹部５１を形成する。この凹部５１内に雨水貯留用ユニット１を縦横に配設し、貯水槽２の雄形連結部２５と雌形連結部２６を嵌合させて連結する。貯水槽２を連結する際には、前記雄形連結部２５と雌形連結部２６内に形成した切取線２７の適宜の切取線から切り取ることによって流水口２４を形成する。   Next, an embodiment of an underground water storage facility using the rainwater storage unit 1 configured as described above will be described. FIG. 13 shows an example of an underground water storage facility 50 provided under a sidewalk. In order to form the underground water storage facility 50, first, the concave portion 51 in which the rainwater storage unit 1 is disposed by digging the ground of the sidewalk 53 is formed. The rainwater storage unit 1 is disposed vertically and horizontally in the recess 51, and the male connecting portion 25 and the female connecting portion 26 of the water storage tank 2 are fitted and connected. When the water storage tank 2 is connected, the water outlet 24 is formed by cutting off the appropriate cut line 27 of the cut line 27 formed in the male connection part 25 and the female connection part 26.

前記切取線の切り取る位置は、貯水槽２を配設する面の傾斜角度や雨水等の流入量等を考慮して決めればよい。前記貯水槽２内に挿入した土壌層支持体３は、支柱３１が貯水槽２底部に形成された嵌合部２２ａ、２２ｂに嵌合固定されているから、貯水槽２内に確実に位置決めされる。土壌層支持体３は、貯水槽２の深さに応じて、複数段に積み重ねることができる。この土壌層支持体３によって大きな空間が形成されるから、この空間に雨水等を貯留することができる。   The position for cutting the cut line may be determined in consideration of the inclination angle of the surface on which the water storage tank 2 is disposed, the inflow amount of rainwater, and the like. The soil layer support 3 inserted into the water tank 2 is securely positioned in the water tank 2 because the support column 31 is fitted and fixed to the fitting portions 22a and 22b formed at the bottom of the water tank 2. The The soil layer support 3 can be stacked in multiple stages according to the depth of the water storage tank 2. Since a large space is formed by the soil layer support 3, rainwater or the like can be stored in this space.

前記土壌層支持体３の上面には、不織布などの透水性シート５２を敷設し、その上に土砂による被覆層を設ければよい。尚、雨水等貯留用ユニット１を構成する貯水槽２には、道路、住宅地等の側溝に通じる雨水等の流入口と、貯留水が一定の水位を超えたときに排水するための流出口を設けるとともに、雨水等を外部に汲み上げるための取水用パイプを配設しておき、ポンプにより汲み上げ可能な構成としてもよい。また、凹部５１の内面にコンクリート等の不透水層を形成することなく地面を掘り下げたままとした場合には、貯水槽２の底部に小孔を穿設することによって雨水等が徐々に地中に浸透することになり、地下水の涵養が可能となる。   A water-permeable sheet 52 such as a non-woven fabric may be laid on the upper surface of the soil layer support 3, and a covering layer made of earth and sand may be provided thereon. In addition, the storage tank 2 constituting the rainwater storage unit 1 has an inflow port for rainwater or the like that leads to a gutter such as a road or a residential area, and an outflow port for discharging the stored water when the water level exceeds a certain level. In addition, a water intake pipe for pumping rainwater or the like to the outside may be provided so that the pump can pump the rainwater. In addition, when the ground is left dug without forming an impermeable layer of concrete or the like on the inner surface of the recess 51, rainwater or the like is gradually submerged by forming a small hole in the bottom of the water storage tank 2. It becomes possible to recharge groundwater.

上記地下貯水設備は、雨水等貯留用ユニット１を縦横に敷き並べることによって形成することができるから、傾斜した道路や歩道を利用して形成することができる。
尚、上記実施形態では、土壌層支持体３の上に透水性シート５２を敷設したが、土壌層支持体３の天板自体が網目状等により土砂の侵入を防止するように形成されている場合には、透水性シートのような土砂侵入防止材の敷設を省略することができる。 Since the above underground water storage facility can be formed by laying rainwater storage units 1 vertically and horizontally, it can be formed using an inclined road or sidewalk.
In addition, in the said embodiment, although the water-permeable sheet 52 was laid on the soil layer support body 3, the top plate itself of the soil layer support body 3 is formed so that the invasion of earth and sand may be prevented by mesh shape. In such a case, it is possible to omit the laying-in prevention material such as a water permeable sheet.

この発明に係る雨水等貯留用ユニットの貯水槽と土壌層支持体とを分離した状態の正面図である。It is a front view of the state which isolate | separated the water tank and soil layer support body of the unit for rainwater storage which concerns on this invention. 貯水槽の平面図である。It is a top view of a water storage tank. 図２のＸ−Ｘ線における断面図である。It is sectional drawing in the XX line of FIG. 貯水槽の連結部を示す斜視図であり、図４（Ａ）は雄形連結部の斜視図、図４（Ｂ）は雌形連結部の斜視図である。It is a perspective view which shows the connection part of a water storage tank, FIG. 4 (A) is a perspective view of a male connection part, FIG.4 (B) is a perspective view of a female connection part. 雄形連結部と雌形連結部の連結状態を示す平面図である。It is a top view which shows the connection state of a male connection part and a female connection part. 雄形連結部と雌形連結部の連結状態を示す断面図である。It is sectional drawing which shows the connection state of a male connection part and a female connection part. 貯水槽の別の連結部を示す斜視図であり、図７（Ａ）は雄形連結部の斜視図、図７（Ｂ）は雌形連結部の斜視図、（Ｃ）は雄形連結部と雌形連結部の連結状態を示す断面図である。It is a perspective view which shows another connection part of a water storage tank, FIG. 7 (A) is a perspective view of a male connection part, FIG.7 (B) is a perspective view of a female connection part, (C) is a male connection part. It is sectional drawing which shows the connection state of a female connection part. 連結部における流量調整口の形状を示す正面図である。It is a front view which shows the shape of the flow volume adjustment port in a connection part. 土壌層支持体の平面図である。It is a top view of a soil layer support body. 図９のＹ−Ｙにおける断面図である。It is sectional drawing in YY of FIG. 図９のＺ−Ｚにおける断面図である。It is sectional drawing in ZZ of FIG. 緑化設備を示す一部断面図である。It is a partial sectional view showing a planting facility. 地下貯水設備を示す一部断面図である。It is a partial sectional view showing an underground water storage facility.

符号の説明Explanation of symbols

１：雨水等貯留用ユニット
２：貯水槽
３：土壌層支持体
２０：側壁
２０ａ：底部側の下段側壁
２０ｂ：上段側壁
２３：連結部
２４：流水口
２５：雄形連結部
２６：雌形連結部
２７：切取線
３０：天板
３１：支柱
３２：板状体
３３：縁枠
３４、３５：透孔
３６：嵌合部
４０：吸水材
４１：透水性シート
４２：土壌層
４３：化粧カバー
４５：草花
４６：樹木
４７：水位制御手段
５０：地下貯水施設
５１：凹部
５２：透水性シート 1: Rainwater storage unit 2: Water tank
3: Soil layer support 20: Side wall
20a: Lower side wall 20b: Upper side wall
23: Connection part 24: Flow outlet
25: Male connector
26: Female connector
27: Cut line
30: Top plate 31: Support
32: Plate-shaped body
33: Edge frame 34, 35: Through hole
36: Fitting part 40: Water absorbing material
41: Water-permeable sheet
42: Soil layer 43: Cosmetic cover
45: Grass flower
46: Tree 47: Water level control means
50: Underground water storage facility 51: Recess
52: Water-permeable sheet

Claims (13)

貯水槽と前記貯水槽に挿入される土壌層支持体とからなり、前記貯水槽の側面には連結部と流水口が設けられており、流水口は薄肉による切取線を設け、切取線から切り取ることができるように形成されており、土壌層支持体は、支柱を備えた構造体であることを特徴とする雨水等貯留用ユニット。   It consists of a water storage tank and a soil layer support inserted into the water storage tank, and a connecting portion and a water outlet are provided on the side surface of the water tank, and the water outlet is provided with a thin cut line and can be cut off from the cut line. A unit for storing rainwater or the like, wherein the soil layer support is a structure provided with struts. 連結部は、貯水槽の側壁上端部に突設した樋部に外向きフランジを設けてなる雄形連結部と、側壁上端部に突設した樋部に内向きフランジを設けてなる雌形連結部とからなることを特徴とする請求項１に記載の雨水等貯留用ユニット。   The connection part is a male connection part in which an outward flange is provided on the flange part protruding from the upper end part of the side wall of the water storage tank, and a female connection part in which an inward flange is provided in the flange part protruding from the upper end part of the side wall. The rainwater storage unit according to claim 1, comprising: a portion. 連結部は、貯水槽の側壁上端部に突設した樋部に外向きフランジを設けてなる雄形連結部と、側壁上端部に前記樋部の断面形状に対応した凹部を設けてなる雌形連結部とからなることを特徴とする請求項１に記載の雨水等貯留用ユニット。   The connecting part has a male connecting part in which an outward flange is provided on the flange part protruding from the upper end part of the side wall of the water tank, and a female form in which a concave part corresponding to the cross-sectional shape of the flange part is provided in the upper end part of the side wall. The rainwater storage unit according to claim 1, comprising a connecting portion. 流水口を形成する切取線は、複数設け、流水口の高さを順次深くすることができるように段状に形成されていることを特徴とする請求項１〜３のいずれか１項に記載の雨水等貯留用ユニット。   The cutting line which forms a flowing water port is provided with two or more, and is formed in the step shape so that the height of a flowing water port can be made deep sequentially, The any one of Claims 1-3 characterized by the above-mentioned. Rainwater storage unit. 土壌層支持体は、天板と支柱とからなることを特徴とする請求項１〜３のいずれか１項に記載の雨水等貯留用ユニット。   The unit for storing rainwater or the like according to any one of claims 1 to 3, wherein the soil layer support includes a top plate and a support column. 貯水槽と前記貯水槽に挿入される土壌層支持体とは、平面四角形状に形成したことを特徴とする請求項１〜５のいずれか１項に記載の雨水等貯留用ユニット。   The rainwater storage unit according to any one of claims 1 to 5, wherein the water storage tank and the soil layer support inserted into the water storage tank are formed in a planar square shape. 貯水槽の底面に、土壌層支持体の支柱を嵌合する嵌合部を設けたことを特徴とする請求項１〜５のいずれか１項に記載の雨水等貯留用ユニット。   The rainwater storage unit according to any one of claims 1 to 5, wherein a fitting portion for fitting a support of a soil layer support is provided on a bottom surface of the water storage tank. 請求項１〜７に記載する雨水等貯留用ユニットを使用してなる緑化設備であって、前記雨水等貯留用ユニットを敷き並べ、土壌層支持体の上に土砂侵入防止材を積層し、又は土砂侵入防止材を積層しないで植栽用の土壌層を形成してなり、前記土壌層支持体には貯水槽内の雨水等を吸い上げる吸水材が土壌層に達するように設けられていることを特徴とする雨水等貯留用ユニットを用いた緑化設備。   A planting facility using the rainwater storage unit according to claim 1, wherein the rainwater storage unit is laid and laminated with a soil intrusion prevention material on a soil layer support, or A soil layer for planting is formed without laminating soil invasion prevention materials, and the soil layer support is provided with a water absorbing material that sucks up rainwater etc. in the water tank so as to reach the soil layer. A planting facility that uses a rainwater storage unit. 敷き並べた前記雨水等貯留用ユニットの外周側に化粧カバーを設けたことを特徴とする請求項８に記載の雨水等貯留用ユニットを用いた緑化設備。   The greening facility using the rainwater storage unit according to claim 8, wherein a decorative cover is provided on an outer peripheral side of the rainwater storage unit arranged side by side. 敷き並べた前記雨水等貯留用ユニットのうちの１又は２以上に水位制御手段を設けたことを特徴とする請求項８又は請求項９に記載の雨水等貯留用ユニットを用いた緑化設備。   10. The planting equipment using the rainwater storage unit according to claim 8, wherein a water level control means is provided in one or more of the rainwater storage units arranged side by side. 請求項１〜７に記載する雨水等貯留用ユニットを使用してなる地下貯水設備であって、地面を掘り下げて形成した凹部に前記雨水等貯留用ユニットを敷き並べ、土壌層支持体の上に土砂侵入防止材を積層し、又は土砂侵入防止材を積層しないで土砂による被覆層を設けたことを特徴とする雨水等貯留用ユニットを用いた地下貯水設備。   An underground water storage facility using the rainwater storage unit according to claim 1, wherein the rainwater storage unit is laid in a recess formed by digging the ground, on a soil layer support. An underground water storage facility using a unit for storage of rainwater, etc., characterized in that a sediment-preventing material is laminated or a covering layer made of sediment is provided without laminating a sediment-preventing material. 雨水等貯留用ユニットを構成する貯水槽には、雨水等の流入口と、貯留水が一定の水位を超えたときに排水するための流出口を設けたことを特徴とする請求項１１に記載の雨水等貯留用ユニットを用いた地下貯水設備。   The storage tank constituting the rainwater storage unit is provided with an inflow port for rainwater and an outflow port for draining water when the stored water exceeds a certain level. Underground water storage equipment using rainwater storage units. 地面を掘り下げて形成した凹部は、雨水等が徐々に地中に浸透するようにしたことを特徴とする請求項１１又は請求項１２に記載の雨水等貯留用ユニットを用いた地下貯水設備。   13. The underground water storage facility using the rainwater storage unit according to claim 11 or 12, wherein the recess formed by digging down the ground gradually infiltrates rainwater or the like into the ground.
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JP2006336196A (en) * 2005-05-31 2006-12-14 Takiron Co Ltd Filler for underground water tank
JP2008082007A (en) * 2006-09-27 2008-04-10 Ebata Kk Structure for rainwater storage/permeating facility, and rainwater storage/permeating facility using the same
JP2008118901A (en) * 2006-11-10 2008-05-29 Koichi Kakihara Greening structure
JP2010150826A (en) * 2008-12-25 2010-07-08 Aaki Yamade Kk Rainwater storage tank formation method and rainwater storage tank
JP2010207108A (en) * 2009-03-06 2010-09-24 Shimizu Corp Parking area greening system
JP2010239917A (en) * 2009-04-08 2010-10-28 Sanou:Kk Greening structure
JP2012517221A (en) * 2009-02-09 2012-08-02 ラウ，クウォク・ケイ Apparatus and system for plant cultivation
JP2014109171A (en) * 2012-12-04 2014-06-12 Aron Kasei Co Ltd Retaining material and retention and infiltration facility provided with the same
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006336196A (en) * 2005-05-31 2006-12-14 Takiron Co Ltd Filler for underground water tank
JP4559300B2 (en) * 2005-05-31 2010-10-06 タキロン株式会社 Filling material for underground water tank
JP2008082007A (en) * 2006-09-27 2008-04-10 Ebata Kk Structure for rainwater storage/permeating facility, and rainwater storage/permeating facility using the same
JP2008118901A (en) * 2006-11-10 2008-05-29 Koichi Kakihara Greening structure
JP2010150826A (en) * 2008-12-25 2010-07-08 Aaki Yamade Kk Rainwater storage tank formation method and rainwater storage tank
JP2012517221A (en) * 2009-02-09 2012-08-02 ラウ，クウォク・ケイ Apparatus and system for plant cultivation
JP2010207108A (en) * 2009-03-06 2010-09-24 Shimizu Corp Parking area greening system
JP2010239917A (en) * 2009-04-08 2010-10-28 Sanou:Kk Greening structure
JP2014109171A (en) * 2012-12-04 2014-06-12 Aron Kasei Co Ltd Retaining material and retention and infiltration facility provided with the same
KR102339506B1 (en) * 2021-04-15 2021-12-16 충청대학교 산학협력단 Rainwater recycling type city dam

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