JP3160569U - Water storage type permeable pavement structure - Google Patents
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Abstract
【課題】 簡単に入手できる材料を使用し、経済性高く、十分な透水能と貯水能を有する舗装構造を提供すること。【解決手段】 路床面上に、平均粒径１ないし５ｍｍの砕石粉あるいは砂を、３０〜１００ｍｍ敷き詰めたフィルター層、平均粒径５〜４０ｍｍの石灰岩を５０〜５００ｍｍ敷き詰めた貯水層および６号砕石を３０〜１００ｍｍに敷き詰め、これにセメントとポリマーディスパージョンを含有するセメントノロを散布し、透水性を有する状態で固着させた舗装仕上層を順に形成してなることを特徴とする貯水型透水性舗装構造。【選択図】 図１PROBLEM TO BE SOLVED: To provide a pavement structure which uses a readily available material, is highly economical and has sufficient water permeability and water storage capacity. SOLUTION: A filter layer in which 30 to 100 mm of crushed stone powder or sand having an average particle diameter of 1 to 5 mm is laid on the road bed surface, and a water storage layer and No. 6 in which limestone having an average particle diameter of 5 to 40 mm is laid down to 50 to 500 mm. Water storage type water-permeable permeability characterized in that crushed stone is spread over 30 to 100 mm, cement paste containing cement and polymer dispersion is spread on this, and pavement finishing layers fixed in a state having water permeability are formed in order. Pavement structure. [Selection] Figure 1
Description
本考案は、貯水型透水性舗装構造に関し、更に詳細には、雨水を多孔性の透水表層を通して貯水層に貯留させることで、降雨時に水たまりを生じることがなく、その後は貯水層に貯留した雨水が徐々に蒸発することで、路面の温度の上昇を抑制可能な、貯水型透水性舗装構造に関する。 The present invention relates to a water-permeable permeable pavement structure, and more specifically, rainwater is stored in a water reservoir through a porous water-permeable surface layer so that no puddle is produced during rainfall, and thereafter rainwater stored in the water reservoir is stored. It is related with the water-storage type water-permeable pavement structure which can suppress the raise of the temperature of a road surface by evaporating gradually.
現在、コンクリート舗装やアスファルト舗装の普及により、雨水が土に浸透せず、雷雨などの豪雨の際に一瞬にして舗装表面を雨水が流れ、側溝では排水不能となる、いわゆる都市洪水が発生している。 Currently, with the spread of concrete pavement and asphalt pavement, so-called urban flooding has occurred, where rainwater does not penetrate into the soil, rainwater flows instantly during heavy rains such as thunderstorms, and drainage is impossible at the side ditch. Yes.
従来より、このような激しい降雨時に雨水を路面中に貯留させて、舗装表面を水が流れることを防ぎ、雨が上がった後は貯留した雨水が徐々に蒸発することで、日射による路面の温度の上昇を防ぐ舗装は知られている（特許文献１および２）。 Conventionally, rainwater is stored on the road surface during such heavy rains to prevent the water from flowing on the pavement surface. After raining, the stored rainwater gradually evaporates, resulting in the temperature of the road surface due to solar radiation. The pavement which prevents a raise of the is known (patent documents 1 and 2).
しかしながら、特許文献１の技術は、空間支持体という特別な構造物を有するものであり、また、透水性スペーサーや透水性シート材を用いるものであり、コストが自ずから高くなるものである。 However, the technique of Patent Document 1 has a special structure called a space support, and uses a water-permeable spacer or a water-permeable sheet material, and the cost is naturally increased.
また、特許文献２には、透水性保水層と貯水層を有する舗装構造が開示されているものの、貯水層を形成するバラスは、廃瓦であってその入手は制限があり、また、しっかりした舗装面を形成するには、廃瓦を破砕したときの大きさや、バラス上の透水性保水層の厚さや材料に注意する必要がある。 In addition, Patent Document 2 discloses a pavement structure having a water permeable water retention layer and a water storage layer, but the ballast forming the water storage layer is waste tiles, and its availability is limited, and it is solid In order to form a paved surface, it is necessary to pay attention to the size when the waste tiles are crushed and the thickness and material of the water-permeable water retaining layer on the ballast.
従って本考案は、簡単に入手できる材料を使用し、経済性高く、十分な透水能と貯水能を有する舗装構造を提供することをその課題とするものである。 Accordingly, an object of the present invention is to provide a pavement structure that uses a readily available material, is highly economical, and has sufficient water permeability and water storage capacity.
本考案者は、上記課題を解決すべく鋭意研究を行っていたところ、路床面を異なる粒径および材料からなる三層構造とし、その最上層を透水性がある状態のまま固めることで、透水性および保水性を両立する貯水型透水性舗装構造が得られることを見出し、本考案を完成した。 The present inventor had been diligently researching to solve the above problems, and the road bed surface was made into a three-layer structure composed of different particle sizes and materials, and the uppermost layer was solidified with water permeability, The inventors have found that a water storage type water-permeable pavement structure that achieves both water permeability and water retention can be obtained, and have completed the present invention.
すなわち本考案は、路床面上に、平均粒径１ないし５ｍｍの砕石粉あるいは砂を、３０〜１００ｍｍ敷き詰めたフィルター層、平均粒径５〜４０ｍｍの石灰岩を５０〜５００ｍｍ敷き詰めた貯水層および６号砕石を３０〜１００ｍｍに敷き詰め、これにセメントとポリマーディスパージョンを含有するセメントノロを散布し、透水性を有する状態で固着させた舗装仕上層を順に形成してなることを特徴とする貯水型透水性舗装構造である。 That is, the present invention has a filter layer in which 30 to 100 mm of crushed stone powder or sand having an average particle diameter of 1 to 5 mm is laid on the road bed surface, and a water storage layer in which 50 to 500 mm of limestone having an average particle diameter of 5 to 40 mm is laid. Water storage type permeated water characterized in that pavement finishing layers are formed in order by spreading No. crushed stone on 30 to 100 mm, spraying cement noro containing cement and polymer dispersion on the ground, and fixing them in a state having water permeability. It is a pavement structure.
本考案の貯水型透水性舗装構造は、上面が透水性を有する状態で６号砕石が固着されており、その下部に貯水層およびフィルター層を有するため、降水時でも水たまりが生じることがなく、快適な歩行が可能である。また、雷雨などの豪雨の際であっても、その雨水を一旦貯水層に貯留することで冠水を防いで排水側溝への流出を最小限に抑えることができ、都市型洪水を緩和することができる。更に、晴天の日中時などは、貯留された雨水が蒸発することで舗装表面の温度を下げる働きも有するものである。 The water storage type permeable pavement structure of the present invention has a water permeable stone and a filter layer in the lower part of which the No. 6 crushed stone is fixed in a state where the upper surface has water permeability. Comfortable walking is possible. Moreover, even during heavy rains such as thunderstorms, once the rainwater is stored in the reservoir, flooding can be prevented and the outflow to the drainage ditch can be minimized, thereby mitigating urban flooding. it can. Furthermore, when the weather is sunny, the rainwater that has been stored evaporates and the surface temperature of the pavement is lowered.
以下、図１を参照しつつ、本考案の貯水型透水性舗装構造について説明する。 Hereinafter, the water storage type water-permeable pavement structure of this invention is demonstrated, referring FIG.
図１は、本考案の貯水型透水性舗装構造（以下、「舗装構造」と略称する）を模式的に示したものであり、図中、１は舗装構造を、２は路床面、３はフィルター層、４は貯水層であり、５は舗装仕上層である。 FIG. 1 schematically shows a water storage type permeable pavement structure of the present invention (hereinafter abbreviated as “pavement structure”). In the figure, 1 is a pavement structure, 2 is a roadbed surface, Is a filter layer, 4 is a water storage layer, and 5 is a pavement finishing layer.
本考案の舗装構造１は、上記のように、フィルター層３、貯水層４および舗装仕上層５より構成されるものであるが、その施工は、次のようにして行われる。 The pavement structure 1 of the present invention is composed of the filter layer 3, the water storage layer 4, and the pavement finishing layer 5 as described above, and the construction is performed as follows.
まず、本舗装構造を施工すべき地面の土を舗装構造の深さまで取り除き、次いでこの面を突き固め、路床面２を形成する。 First, the soil on the ground on which the pavement structure is to be constructed is removed to the depth of the pavement structure, and then this surface is solidified to form the roadbed surface 2.
次に、この路床面２上に、平均粒径１ないし５ｍｍの砕石粉あるいは砂を敷き詰め、必要によりこの敷き詰めた面を平らに突き固めて、フィルター層３を形成する。このフィルター層は、路床面２の保護であるため、あまり荒い砕石を利用することは好ましくない。なお、このフィルター層３の厚みは、路床面２の状態や、貯水層４で予想される貯水量により適宜決められるが、３０〜１００ｍｍ程度が好ましい。 Next, crushed stone powder or sand having an average particle diameter of 1 to 5 mm is spread on the road floor surface 2, and the laid surface is flattened as necessary to form the filter layer 3. Since this filter layer protects the road surface 2, it is not preferable to use crushed crushed stone. In addition, although the thickness of this filter layer 3 is suitably determined by the state of the road floor surface 2 and the water storage amount estimated by the water storage layer 4, about 30-100 mm is preferable.
更に、フィルター層３上に、平均粒径５〜４０ｍｍの石灰岩を敷き詰め、必要によりこの敷き詰めた面を平らに突き固め、貯水層４を形成する。この貯水層４は、舗装面に降った雨水を流入させ、貯留させるものであるから、吸水性が良い石灰岩が利用され、また空間が多くなるよう、粒径の大きいものが好ましい。この貯水層４の厚さは、５０〜５００ｍｍ程度が好ましい。 Further, limestone having an average particle diameter of 5 to 40 mm is spread on the filter layer 3, and if necessary, the spread surface is flattened to form the water storage layer 4. Since the water storage layer 4 is for storing rainwater that has fallen on the pavement and storing it, a limestone with good water absorption is used, and a large particle size is preferable so that the space is increased. The thickness of the water storage layer 4 is preferably about 50 to 500 mm.
最後に、上記貯水層４の上に舗装仕上層５が施工される。この舗装仕上層５は、本考案舗装構造の上面となり、路面としての働きと、上面に降った雨水を下の貯水層４に流し込まなければならないため、相応の強度と透水性が要求される。 Finally, a pavement finishing layer 5 is constructed on the water storage layer 4. This pavement finishing layer 5 becomes the upper surface of the pavement structure of the present invention, and since it functions as a road surface and rain water that has fallen on the upper surface has to be poured into the lower water storage layer 4, appropriate strength and water permeability are required.
具体的にこの舗装仕上層５の施工は、まず、６号砕石（粒径１３ｍｍ以下の砕石）を３０〜１００ｍｍに敷き詰め、上面を平らにする。次いで、この平らになった面の上から、セメントとポリマーディスパージョンを含有するセメントノロを散布し、砕石間の空間を残しながら、砕石間を結合し、透水性を与える（図２）。 Specifically, the pavement finishing layer 5 is constructed by first laying No. 6 crushed stone (crushed stone having a particle size of 13 mm or less) on 30 to 100 mm and flattening the upper surface. Next, a cement paste containing cement and polymer dispersion is sprayed on the flattened surface to bond the crushed stones while leaving a space between the crushed stones, thereby providing water permeability (FIG. 2).
このセメントノロは、ポルトランドセメントや、白セメント等のセメントと、ポリマーディスパージョンを混合することにより調製されるものである。ここで用いるポリマーディスパージョンとは、一般にモルタル接着増強剤として使用されているポリマーのディスパージョンであり、例えば、スーパーペトロック４００（旭化成ケミカルズ社製）の商品名で市販されているアクリル系ポリマーの水分散液、マノールポリマー−１０００（マノール社製）の商品名で市販されているエチレン酢酸ビニル（ＥＶＡ）系コポリマーの水分散液、マノールＳＢＲ等の商品名で市販されているスチレンブタジエン（ＳＢＲ）系ポリマー（マノール社製）の水分散液等を利用することができる。 This cement paste is prepared by mixing a cement such as Portland cement or white cement with a polymer dispersion. The polymer dispersion used here is a dispersion of a polymer generally used as a mortar adhesion enhancer, for example, an acrylic polymer marketed under the trade name Super Petlock 400 (manufactured by Asahi Kasei Chemicals). Styrene butadiene (SBR) marketed under the trade name of an aqueous dispersion, ethylene vinyl acetate (EVA) copolymer commercially available under the trade name of Manol Polymer-1000 (manol), Manol SBR, etc. An aqueous dispersion of a polymer (manol) can be used.
なお、セメントノロは、水１００重量部に対し、上記ポリマーを２０ないし５０重量部、セメントを１６０ないし２２０重量部加え、これを均一となるまで混合することにより得られる。またセメントノロによる処理は、１度でなく２度以上行うことが、舗装仕上層５に透水性を与えながら強度を上げることができるため好ましい。 The cement paste can be obtained by adding 20 to 50 parts by weight of the polymer and 160 to 220 parts by weight of the cement to 100 parts by weight of water and mixing them until uniform. Further, it is preferable to perform the treatment with cement paste not once but twice or more because the strength can be increased while imparting water permeability to the pavement finishing layer 5.
更に、舗装仕上層５を着色する場合には、上記セメントノロに希望の色の顔料等を配合しても良い。 Furthermore, when coloring the pavement finishing layer 5, you may mix | blend the pigment of a desired color, etc. with the said cement paste.
次に実施例を挙げ、本考案を更に詳しく説明するが、本考案はこれら実施例に何ら制約されるものではない。 Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.
実 施 例 １
舗装構造を施工する地面の土を、約３００ｍｍの深さまで堀り、掘られた部分を突き固めた。ついで、掘られた部分の中に、平均粒径５ｍｍの粉砕石を約５０ｍｍとなるまで敷き詰め、その上を軽く突き固めてフィルター層を形成した。
Example 1
The soil on the ground on which the pavement structure was constructed was dug to a depth of about 300 mm, and the excavated part was solidified. Next, a crushed stone having an average particle diameter of 5 mm was spread in the excavated portion until it became about 50 mm, and the filter layer was formed by lightly tamping it.
更に、フィルター層の上に、Ｃ−４０の琉球石灰岩砕石を、その厚さが約２００ｍｍとなるように敷き詰め、その上から軽く突き固めて貯水層とした。最後に、琉球石灰岩砕石の層の上に、６号砕石を約５０ｍｍとなるように敷き詰め、上面をローラーで平らにした。 Further, C-40 Ryukyu limestone crushed stones were spread on the filter layer so that the thickness was about 200 mm, and lightly squeezed from above to form a water storage layer. Finally, No. 6 crushed stone was spread on the layer of Ryukyu limestone crushed stone so as to be about 50 mm, and the upper surface was flattened with a roller.
一方、施工路床面に対し、５７.１重量のポルトランドセメントおよび８.６重量部のアクリル系ラテックス（スーパーペトロック４００；旭化成ケミカルズ社製）を、３４.３重量部の水と混合し、セメントノロを調製した。このセメントノロを、１０.５ｋｇ／ｍ２となるように、ジョーロを用い、前記６号砕石で形成した層の上に散布した。一夜放置し、翌日も同じ組成のセメントノロを、再度ジョーロで、１０．５ｋｇ／ｍ２となるように散布し、放置して舗装仕上層５を形成した。 On the other hand, 57.1 parts of Portland cement and 8.6 parts by weight of acrylic latex (Super Petroc 400; manufactured by Asahi Kasei Chemicals) are mixed with 34.3 parts by weight of water with respect to the construction road surface. A cement paste was prepared. The cement paste was sprayed on the layer formed of the No. 6 crushed stone using a joro so as to be 10.5 kg / m 2 . The mixture was allowed to stand overnight, and the next day, the cement noro having the same composition was again sprayed with a joro so as to be 10.5 kg / m 2, and left to form a pavement finishing layer 5.
二度目の散布から、２４時間後には、舗装仕上層は硬化しており、この上を歩行しても何の問題もなかった。また、この上に散水したところ、この水は吸収されていった。 24 hours after the second spraying, the pavement finish was hardened and there was no problem walking on it. Moreover, when water was sprinkled on this, this water was absorbed.
施工したこの舗装構造について、大雨（１００ｍｍ／時間）の後に観察したところ、表面に水たまりはできていなかった。また、雨が降った後の晴天の日に、この舗装構造上と、他の部分の地上温度を測定したところ、舗装構造上の方が、表面温度として平均３℃程度低かった。 The pavement structure thus constructed was observed after heavy rain (100 mm / hour), and no puddle was formed on the surface. Moreover, when the ground temperature of this pavement structure and other parts was measured on the day of fine weather after raining, the surface temperature on the pavement structure was about 3 ° C. lower on the average.
実 施 例 ２
実施例１と同様にして、施工路床面を形成した。次いで、実施例１と同様に調製したセメントノロを、モルタルポンプを用い、施工路面に対し、１１ｋｇ／ｍ２となるよう吹き付けた。翌日、同様にモルタルポンプを用い、施工路面に対し、セメントノロを１１ｋｇ／ｍ２となるよう吹き付けた。
Example 2
In the same manner as in Example 1, a construction road bed surface was formed. Next, the cement paste prepared in the same manner as in Example 1 was sprayed onto the construction road surface so as to be 11 kg / m 2 using a mortar pump. On the next day, a mortar pump was similarly used, and cement paste was sprayed on the construction road surface to 11 kg / m 2 .
二度目の散布から、２４時間後には、舗装仕上層は硬化しており、この上を歩行しても何の問題もなかった。また、この上に散水したところ、この水は吸収されていった。 24 hours after the second spraying, the pavement finish was hardened and there was no problem walking on it. Moreover, when water was sprinkled on this, this water was absorbed.
本考案の舗装構造は、降雨時でも水溜を作らず、歩行性が良好であるとともに、降雨を一旦保持する機能があるので、都市型洪水の防止に有効である。また、降水後の日照で舗装表面の温度が上がる場合でも、貯留した雨水の蒸発により舗装面の温度の上昇を防ぎ、いわゆるヒートアイランド現象の緩和にも役立つものである。 The pavement structure of the present invention is effective in preventing urban flooding because it does not create a water reservoir even during rainfall, has good walking ability, and has the function of temporarily retaining rainfall. In addition, even when the temperature of the pavement surface rises due to sunshine after precipitation, the rise of the temperature of the pavement surface is prevented by evaporation of the stored rainwater, which helps to mitigate the so-called heat island phenomenon.
更に、本考案の舗装構造の施工は、使用する砕石の選択と、最上層の舗装仕上層においてセメントと、ポリマーディスパージョンを混合したセメントノロを散布するだけであるので、きわめて簡単で、経済的であり、かつ上記セメントノロに顔料を加えるだけで希望するカラーの舗装面が得られるものである。 Furthermore, the construction of the pavement structure of the present invention is extremely simple and economical because it only requires the selection of crushed stones to be used and the application of cement paste mixed with cement and polymer dispersion in the uppermost pavement finishing layer. In addition, a desired color paved surface can be obtained simply by adding a pigment to the cement paste.
従って、本考案の舗装構造は、一般の歩道の他、公園等の遊歩道、簡易駐車場、庭あるいは防草材として植栽升に使用することができるものである。 Therefore, the pavement structure of the present invention can be used for planting baskets as a promenade such as a park, a simple parking lot, a garden, or a herbicidal material in addition to a general sidewalk.
１ … … 舗装構造
２ … … 路床面
３ … … フィルター層
４ … … 貯水層
５ … … 舗装仕上層
1 ... ... Pavement structure 2 ... ... Roadbed surface 3 ... ... Filter layer 4 ... ... Reservoir layer 5 ... ... Pavement finish
Claims (3)
The water storage type permeable pavement structure according to claim 1 or 2, wherein the cement paste is sprayed twice or more.
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| JP2010001849U JP3160569U (en) | 2010-03-23 | 2010-03-23 | Water storage type permeable pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560355A (en) * | 2018-06-12 | 2018-09-21 | 中铁九局集团第七工程有限公司 | Water storage porous pavement and its laying method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560355A (en) * | 2018-06-12 | 2018-09-21 | 中铁九局集团第七工程有限公司 | Water storage porous pavement and its laying method |
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