JP2008127755A - Construction method for drainage structure - Google Patents
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- JP2008127755A JP2008127755A JP2006310366A JP2006310366A JP2008127755A JP 2008127755 A JP2008127755 A JP 2008127755A JP 2006310366 A JP2006310366 A JP 2006310366A JP 2006310366 A JP2006310366 A JP 2006310366A JP 2008127755 A JP2008127755 A JP 2008127755A
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Abstract
Description
本発明は、排水構造体及び排水構造体の施工方法並びに排水構造体を用いた排水方法に関する。さらに詳しくは、地表面から地層へ延びる縦穴に設置した排水管により前記地表面に発生する水たまりの水を前記地層に誘導することにより前記水たまりの水を排水する排水構造体及び排水構造体の施工方法並びに排水構造体を用いた排水方法に関する。 The present invention relates to a drainage structure, a drainage structure construction method, and a drainage method using the drainage structure. More specifically, a drainage structure for draining the water in the puddle by guiding the water in the puddle generated on the ground surface to the stratum by a drain pipe installed in a vertical hole extending from the ground surface to the stratum. The present invention relates to a method and a drainage method using a drainage structure.
舗装された歩道等において、経年変化によりその表面に水たまりが多発するようになった場合、従来は歩道等を再舗装することにより水たまりを解消させていた。しかし、再舗装は工期が長く、且つコスト高となる。 In the case of pavement, etc., when puddles frequently occur on the surface due to aging, the puddles have been eliminated by re-paving the sidewalks. However, repaving requires a long construction period and is expensive.
そこで、地表面に発生する水を排水する従来技術として、例えば特許文献1,2に記載の如きものが知られている。特許文献1に記載の舗装ブロックでは、あらかじめブロックに自身を貫通する貫通孔を設け、その貫通孔に中空の貫通部材を埋め込んでいた。しかし、水たまりの発生箇所をあらかじめ特定することは困難であるため、表面全体に多くの貫通孔や溝を設けなければならず、排水効率が悪かった。さらに、水たまりの発生箇所と貫通孔及び溝との位置関係によっては、貫通部材により排水できない箇所が生じるため、水たまりを完全に解消できない場合も生じていた。 Then, as a prior art which drains the water which generate | occur | produces on the ground surface, what is described in patent document 1, 2, for example is known. In the paving block described in Patent Document 1, a through hole penetrating the block is provided in advance, and a hollow penetrating member is embedded in the through hole. However, since it is difficult to specify in advance the location where the puddle occurs, many through holes and grooves have to be provided on the entire surface, and drainage efficiency is poor. Furthermore, depending on the positional relationship between the location where the puddle is generated and the through hole and the groove, there may be a portion where the drainage cannot be performed by the penetrating member, and the puddle may not be completely eliminated.
また、特許文献2に記載の構造は、透水性のある地表層にその下側の水滞留層で水を滞留させ、その滞留層から導水筒体を介して地層に排水するものである。係る構造においては、舗装に際し上述の水滞留層及び地表層を設けなければならず、工期が長くなり、コスト高となっていた。また、埋設される導水筒体内には砂や小石等の細粒固形物でなる充填材が充填されている。しかし、このような充填材では雨水に含まれる土砂等により内部に目詰まりが発生しやすく、目詰まりが発生すると本構造では導水筒体を掘り起こさなければならず、長期にわたり実用的に使用することは困難であった。加えて、砂や小石等の細粒固形物の充填材では浸透速度が遅く、表面に雨水が滞留してしまう場合があった。 Moreover, the structure of patent document 2 makes water retain in a water-permeable surface layer by the water retention layer below it, and drains it from the retention layer to a formation through a water conveyance cylinder. In such a structure, the above-mentioned water retention layer and surface layer have to be provided when paving, and the construction period is long and the cost is high. Further, the buried water guide cylinder is filled with a filler made of fine solids such as sand and pebbles. However, with such fillers, clogging is likely to occur inside due to earth and sand contained in rainwater, and when clogging occurs, the water guide cylinder must be dug up in this structure, and it should be used practically for a long time. Was difficult. In addition, a fine solid filler such as sand or pebbles has a slow permeation rate, and rainwater may remain on the surface.
これに対し、本願出願人は、非特許文献1〜3に記載の如き排水処理方法を考案し、実施している。この排水処理方法における排水管等の詳細は非公開であるが、この方法では、歩道等の舗装に縦穴を掘削し、その縦穴に砕石を敷き、小孔を多数形成したパイプを埋設して地中に雨水を浸透させ、水たまりを解消していた。 On the other hand, the present applicant has devised and implemented a wastewater treatment method as described in Non-Patent Documents 1 to 3. Details of drainage pipes, etc. in this wastewater treatment method are not disclosed, but in this method, vertical holes are excavated in pavements such as sidewalks, crushed stones are laid in the vertical holes, and pipes with many small holes are buried in the ground. Rainwater was infiltrated inside, eliminating puddles.
しかし、埋設する小孔を多数形成したパイプ内に砕石を充填しており、そのパイプの小孔と砕石との間で雨水等に含まれる土砂等のゴミにより目詰まりが発生しやすく、経時的に排水性が損なわれるという問題があった。その排水機能を維持するために行う目詰まりの除去作業は非常に煩雑で困難であった。
かかる従来の実情に鑑みて、本発明は、簡素な構成で、効率よく長期にわたって水たまりを解消することのできる排水構造体及び排水構造体の施工方法並びに排水構造体を用いた排水方法を提供することを目的とする。 In view of such conventional circumstances, the present invention provides a drainage structure, a drainage structure construction method, and a drainage method using the drainage structure that can efficiently eliminate a puddle over a long period of time with a simple configuration. For the purpose.
上記目的を達成するため、本発明に係る排水構造体の特徴は、地表面から地層へ延びる縦穴に設置した排水管により前記地表面に発生する水たまりの水を前記地層に誘導することにより前記水たまりの水を排水する構成において、前記縦穴は前記水たまりの底部から前記地層内部まで掘削して形成され、前記排水管には側面に複数の小孔が設けられており、前記縦穴内面と前記排水管外面との間に砕石層を形成し、前記排水管の内部に立体網状構造の透水部材を有することにある。 In order to achieve the above object, the drainage structure according to the present invention is characterized in that the puddle is formed by guiding water in a puddle generated on the ground surface to the ground layer by a drain pipe installed in a vertical hole extending from the ground surface to the ground layer. The vertical hole is formed by excavating from the bottom of the puddle to the inside of the formation, and the drain pipe is provided with a plurality of small holes on the side surface, and the inner surface of the vertical hole and the drain pipe A crushed stone layer is formed between the outer surface and the water permeable member having a three-dimensional network structure inside the drain pipe.
上記構成により、透水部材は立体網状構造に形成されるので、誘導された水は様々な経路を通過して小孔に到達することができ、小孔への水の経路が塞がりにくくなり、目詰まりを抑制し長期にわたって排水機能を維持することができる。また、立体網状構造に形成しているので、挿入も容易となり施工しやすい。 With the above configuration, since the water-permeable member is formed in a three-dimensional network structure, the induced water can pass through various paths and reach the small holes, and the water path to the small holes is not easily blocked. Clogging can be suppressed and the drainage function can be maintained over a long period of time. Moreover, since it is formed in a three-dimensional network structure, insertion is easy and construction is easy.
また、前記透水部材は連続しており、前記地表面側から交換可能であることが望ましい。上記構成により、透水部材は連続して形成されているので、地表面からの交換作業が容易に行うことができ、メンテナンス作業が容易となる。さらに、立体網状構造であるので、洗浄することで再利用することも可能となる。 Moreover, it is desirable that the water-permeable member is continuous and can be replaced from the ground surface side. With the above configuration, since the water permeable member is formed continuously, the replacement work from the ground surface can be easily performed, and the maintenance work is facilitated. Furthermore, since it has a three-dimensional network structure, it can be reused by washing.
前記透水部材は中央に少なくとも上部に開口を有する中空部を備えていても構わない。上記構成により、地表面より誘導させた雨水は中空部の全体からパイプに設けられた小孔へ到達するので、より多くの経路が確保され、より長期間の使用が可能となる。 The water-permeable member may have a hollow portion having an opening at least at the top in the center. According to the above configuration, rainwater guided from the ground surface reaches the small hole provided in the pipe from the whole hollow portion, so that more paths are secured and it can be used for a longer period of time.
また、前記透水部材は糸状の合成樹脂材料を互いの間隔を開けて集積させたものが望ましい。前記地表面側には舗装材で形成された地表層が設けられても構わない。 Further, the water permeable member is preferably formed by accumulating thread-like synthetic resin materials at intervals. A ground layer formed of a paving material may be provided on the ground surface side.
上記目的を達成するため、上記に記載の排水構造体の施工方法の特徴は、前記地表面において前記水たまりが発生しうる箇所を特定し、前記水たまりの底部から前記地層内部まで前記縦穴を掘削し、前記縦穴に前記排水管を挿入すると共に、前記縦穴と前記排水管との間に砕石を投入して第二砕石層を形成する一方、前記排水管の内部に立体網状構造の透水部材を挿入することにある。 In order to achieve the above object, the drainage structure construction method described above is characterized in that a location where the puddle can occur is identified on the ground surface, and the vertical hole is excavated from the bottom of the puddle to the inside of the formation. The drainage pipe is inserted into the vertical hole, and a crushed stone is inserted between the vertical hole and the drainage pipe to form a second crushed stone layer, while a water-permeable member having a three-dimensional network structure is inserted into the drainage pipe. There is to do.
また、上記目的を達成するため、上記に記載の排水構造体を用いた排水方法の特徴は、前記縦穴は前記水たまりの底部から前記地層内部まで掘削して形成され、前記排水管には側面に複数の小孔が設けられており、前記縦穴内面と前記排水管外面との間に砕石層を形成し、前記排水管の内部に立体網状構造の透水部材を有することにある。 In order to achieve the above object, the drainage method using the drainage structure described above is characterized in that the vertical hole is formed by excavating from the bottom of the puddle to the inside of the formation, and the drainage pipe has a side surface. A plurality of small holes are provided, a crushed stone layer is formed between the inner surface of the vertical hole and the outer surface of the drain pipe, and a water-permeable member having a three-dimensional network structure is formed inside the drain pipe.
上記本発明に係る排水構造体及び排水構造体の施工方法並びに排水構造体を用いた排水方法の特徴によれば、簡素な構成で、効率よく長期にわたって水たまりを解消することが可能となった。 According to the drainage structure, the drainage structure construction method, and the drainage method using the drainage structure according to the present invention, it has become possible to efficiently eliminate puddles over a long period of time with a simple configuration.
本発明の他の目的、構成及び効果については、以下の発明の実施の形態の項から明らかになるであろう。 Other objects, configurations, and effects of the present invention will become apparent from the following embodiments of the present invention.
次に、適宜添付図面を参照しながら、本発明をさらに詳しく説明する。
図1に示すように、本発明に係る排水構造体1は、地表層2を貫通すると共にその地表層2下部の地層3の適宜深さまで掘削された縦穴4とその縦穴4に設置される排水管10と縦穴4と排水管10との間に砕石を投入して形成した砕石層20よりなる。
Next, the present invention will be described in more detail with reference to the accompanying drawings as appropriate.
As shown in FIG. 1, a drainage structure 1 according to the present invention includes a vertical hole 4 penetrating the surface layer 2 and excavated to an appropriate depth of the formation 3 below the surface layer 2 and drainage installed in the vertical hole 4. The crushed stone layer 20 is formed by throwing crushed stone between the pipe 10, the vertical hole 4 and the drain pipe 10.
地表層2は地層3上に敷設された例えばコンクリート、アスファルト又はブロック等の舗装材である。この舗装材2は、経年変化によってその表面に凹部が生じ、その凹部に降雨等により水たまり5が発生する。この水たまり5に滞留する雨水等を地層3に効率良く且つ迅速に排水させるように、縦穴4は排水効率が最も良い水たまり5の底部5aに形成する。 The ground surface layer 2 is a paving material such as concrete, asphalt, or block laid on the ground layer 3. The pavement 2 has a concave portion on its surface due to secular change, and a puddle 5 is generated in the concave portion due to rainfall or the like. The vertical hole 4 is formed in the bottom 5a of the puddle 5 having the highest drainage efficiency so that rainwater or the like staying in the puddle 5 can be drained efficiently and quickly into the formation 3.
縦穴4は、舗装材2上からコアマシーンを用いて舗装材2を貫通するようにコア抜きを行うと共に、舗装材2の下部の地層の適宜深さまでバール、手動オーガ、電動はつり機等の掘削機器を用いて掘削して形成した穴である。そして、この縦穴4に排水管10を挿入して設置すると共に縦穴4に砕石を投入して砕石層20を形成する。 The vertical hole 4 is cored so as to penetrate the pavement 2 using a core machine from the top of the pavement 2, and excavated by a bar, a manual auger, an electric suspension or the like to an appropriate depth in the formation below the pavement 2. It is a hole formed by drilling using equipment. Then, the drain pipe 10 is inserted into the vertical hole 4 and installed, and crushed stone is put into the vertical hole 4 to form the crushed stone layer 20.
図2〜4に示すように、排水管10は、大略、パイプ11と立体網状構造の透水部材13とよりなる。パイプ11は、例えば塩化ビニル製の円筒管であって、両端が開口している。また、このパイプ11の側面には、適宜間隔をおいて小孔12が複数設けられている。この小孔12は、図2に示すように、地層3に対向する側面に設けられている。一方、舗装材2に対向する側面には小孔12が設けられておらず、この側面と縦穴4との間にはダンプレート14上にセメント15が打設される。また、地表層2側に位置するパイプ11の端部には目皿16が取り付けられる。なお、本実施形態において、小孔12は長手方向に等間隔に約60個設けられている。 As shown in FIGS. 2 to 4, the drain pipe 10 is generally composed of a pipe 11 and a water-permeable member 13 having a three-dimensional network structure. The pipe 11 is a cylindrical tube made of, for example, vinyl chloride, and both ends are open. A plurality of small holes 12 are provided on the side surface of the pipe 11 at appropriate intervals. As shown in FIG. 2, the small hole 12 is provided on the side surface facing the formation 3. On the other hand, the small hole 12 is not provided on the side surface facing the pavement 2, and the cement 15 is placed on the damper plate 14 between the side surface and the vertical hole 4. Moreover, the eye plate 16 is attached to the end of the pipe 11 located on the surface layer 2 side. In the present embodiment, about 60 small holes 12 are provided at equal intervals in the longitudinal direction.
図3、4に示すように、透水部材13は、パイプ11とほぼ同一長さに円筒状に形成され、パイプ11内に挿入される。この透水部材13は、図6,7に示すように、立体網状構造に形成されている。この立体網状構造は、複数の糸状の合成樹脂材料13aを絡ませ且つ互いに接点で接着させながらその間に空隙が形成されるように集積させてなる。また、透水部材13の中央部に中空部13bが形成されている。 As shown in FIGS. 3 and 4, the water permeable member 13 is formed in a cylindrical shape with substantially the same length as the pipe 11 and is inserted into the pipe 11. The water permeable member 13 is formed in a three-dimensional network structure as shown in FIGS. This three-dimensional network structure is formed by entwining a plurality of thread-like synthetic resin materials 13a and adhering them together at contact points so that voids are formed therebetween. Further, a hollow portion 13 b is formed in the central portion of the water permeable member 13.
ここで、図8,9を参照しながら雨水の排水経路について説明する。なお、水の流れる経路を矢印Rで表示し、同経路の上手側を丸印にて表示するものとする。
図8に示すように、パイプ11内部には中空部13bを有する透水部材13が挿入されている。そして、この透水部材13は上述の如く立体網状構造を呈し、透水部材13の内部には多くの空隙が形成される。そのため、透水部材13内部には地表面から誘導された水が小孔12まで到達する経路Rが数多く確保される。さらに、透水部材13の中央には中空部13bが形成されているので、その中空部13b全体からも誘導された水が小孔12まで到達する経路Rが確保される。すなわち、小孔12へ到達する水の経路Rが数多く形成されるので、経路が塞がりにくくなり、目詰まりの発生を抑制することができ、長期に渡って排水機能を維持することができる。
Here, the drainage route of rainwater will be described with reference to FIGS. In addition, the route through which water flows is indicated by an arrow R, and the upper side of the route is indicated by a circle.
As shown in FIG. 8, a water permeable member 13 having a hollow portion 13 b is inserted into the pipe 11. The water permeable member 13 has a three-dimensional network structure as described above, and many voids are formed inside the water permeable member 13. Therefore, many paths R through which water guided from the ground surface reaches the small holes 12 are secured in the water permeable member 13. Furthermore, since the hollow part 13b is formed in the center of the water permeable member 13, the path | route R through which the water induced | guided | derived also from the whole hollow part 13b reaches the small hole 12 is ensured. That is, since many paths R of water reaching the small holes 12 are formed, the paths are not easily blocked, the occurrence of clogging can be suppressed, and the drainage function can be maintained over a long period of time.
一方、図9に比較例を示す。本比較例において、パイプ11内に砕石30が充填してある。このような構成においても、砕石30の隙間に誘導された水の小孔12まで到達する経路Rが形成される。しかし、砕石30を充填した場合は、パイプ11内部にできる経路Rが上述の透水部材13に比べて少ない。そのため、小孔12へ到達する水の経路Rが僅かな異物の混入で遮断されやすく、短期間で目詰まりが発生する問題がある。また砕石30はパイプ11内部に充填されているため、上方からしか経路Rを確保することができないので、より一層目詰まりが生じ易く、しかも、砕石30の交換は煩雑で作業性が悪い。 On the other hand, a comparative example is shown in FIG. In this comparative example, the crushed stone 30 is filled in the pipe 11. Even in such a configuration, a path R that reaches the small hole 12 of water guided in the gap between the crushed stones 30 is formed. However, when the crushed stone 30 is filled, the path R that can be formed inside the pipe 11 is smaller than that of the water permeable member 13 described above. Therefore, there is a problem that the path R of water reaching the small hole 12 is easily blocked due to the presence of a small amount of foreign matter, and clogging occurs in a short period of time. Further, since the crushed stone 30 is filled in the pipe 11, the path R can be secured only from above, so that clogging is more likely to occur, and the replacement of the crushed stone 30 is complicated and poor in workability.
図8の場合、透水部材13はパイプ11の上方から挿入してパイプ11内に設置され、パイプ11端部は開口している。よって、地表面から容易に透水部材13を引き抜くことができ、交換等のメンテナンス作業が容易となる。さらに、立体網状構造であるので容易に洗浄することができ、透水部材13を繰り返し利用することも可能である。 In the case of FIG. 8, the water permeable member 13 is inserted into the pipe 11 from above the pipe 11, and the end of the pipe 11 is open. Therefore, the water-permeable member 13 can be easily pulled out from the ground surface, and maintenance work such as replacement is facilitated. Furthermore, since it is a three-dimensional network structure, it can be easily washed, and the water-permeable member 13 can be used repeatedly.
砕石層20は、縦穴4に砕石を投入して形成された第一砕石層21及び第二砕石層22とよりなる。第一砕石層21は、縦穴4を形成した後に排水管10を挿入する前に縦穴4内に砕石を投入し、縦穴4の底部4aに形成される。この第一砕石層21により排水管10内部を伝った雨水が排水管10の下端部から地層3へ迅速に浸透させることができる。また、第二砕石層22は、縦穴4の内側面と排水管10の側面との間に砕石を投入して形成される。この第二砕石層22により、排水管10の側面に形成された小孔12から排出される水を縦穴4側面からも地層3に浸透させることができる。 The crushed stone layer 20 includes a first crushed stone layer 21 and a second crushed stone layer 22 formed by throwing crushed stone into the vertical holes 4. The first crushed stone layer 21 is formed in the bottom 4 a of the vertical hole 4 by putting crushed stone into the vertical hole 4 before inserting the drain pipe 10 after forming the vertical hole 4. The rainwater that has traveled through the drainage pipe 10 by the first crushed stone layer 21 can rapidly penetrate into the formation 3 from the lower end of the drainage pipe 10. The second crushed stone layer 22 is formed by throwing crushed stone between the inner side surface of the vertical hole 4 and the side surface of the drain pipe 10. With this second crushed stone layer 22, the water discharged from the small holes 12 formed on the side surface of the drain pipe 10 can penetrate into the formation 3 also from the side surface of the vertical hole 4.
次に、図5を参照しながらこの排水構造体の施工方法について説明する。
まず、あらかじめ舗装された地表層となる舗装材2の表面において、水たまり5が発生する凹部を特定しておく。この凹部の特定は、地表面に散水して凹部を特定する他、測量等により特定する。そして、舗装材2及び地層3内に水道管、ガス管、電話線等の地下埋設物が無いかを確認して最も排水効率のよい縦穴4の掘削箇所を特定する。
Next, the construction method of this drainage structure will be described with reference to FIG.
First, the concave part where the puddle 5 is generated is specified on the surface of the pavement material 2 that becomes the ground layer that has been paved in advance. This recess is specified by surveying or the like in addition to specifying the recess by watering the ground surface. Then, it is confirmed whether there are underground pipes such as water pipes, gas pipes, telephone lines, etc. in the pavement material 2 and the formation 3 and the excavation point of the vertical hole 4 with the highest drainage efficiency is specified.
次に、特定した水たまり5の底部5aをオーガ機等を用いてベースコンクリートをコア抜きすると共に、地表面から例えば600〜800mm程度の深さの縦穴4を掘削する(ステップS1)。そして、この縦穴4に13〜20mmの大きさの砕石を投入して、縦穴4の底部4aに第一砕石層21を形成する(ステップS2)。この第一砕石層21により、排水管10を伝ってきた雨水を迅速に地層3に浸透させることができる。 Next, the base concrete of the bottom 5a of the specified puddle 5 is cored using an auger machine or the like, and the vertical hole 4 having a depth of about 600 to 800 mm is excavated from the ground surface (step S1). And the crushed stone of a size of 13-20 mm is thrown into this vertical hole 4, and the 1st crushed stone layer 21 is formed in the bottom part 4a of the vertical hole 4 (step S2). The first crushed stone layer 21 allows the rainwater that has traveled through the drainage pipe 10 to quickly penetrate into the formation 3.
そして、第一砕石層21を形成した後に、縦穴4にパイプ11を縦穴4の略中央部に位置するように挿入する(ステップS3)。このパイプ11の側面にはあらかじめ均等に約60個の小孔12を設けておく。また、地表側に位置する端部には目皿の枠体を取り付けておく。そして、縦穴4とパイプ11との隙間に砕石を投入して第二砕石層22を形成する(ステップS4)。この第二砕石層22は、パイプ11の小孔12から排出される雨水を縦穴4の側面から地層3に浸透させる。また、第二砕石層22は地層3から突出しないように形成される。 And after forming the 1st crushed stone layer 21, the pipe 11 is inserted in the vertical hole 4 so that it may be located in the approximate center part of the vertical hole 4 (step S3). About 60 small holes 12 are provided in advance on the side surface of the pipe 11 in advance. Also, a frame of the eye plate is attached to the end located on the ground surface side. And crushed stone is thrown into the clearance gap between the vertical hole 4 and the pipe 11, and the 2nd crushed stone layer 22 is formed (step S4). The second crushed stone layer 22 allows rainwater discharged from the small holes 12 of the pipe 11 to penetrate into the formation 3 from the side surfaces of the vertical holes 4. The second crushed stone layer 22 is formed so as not to protrude from the formation 3.
第二砕石層22を形成した後、その第二砕石層22上にダンプレート14を設置し、ダンプレート14上にセメント15を打設する(ステップS5)。セメントを打設する際には、パイプ11内にセメントが流れ込まないよう養生テープ等で開口部を塞ぐ。そして、パイプ11内に透水部材13を挿入して設置する。この透水部材13はあらかじめパイプ11とほぼ同一長さに形成しておく。そして、パイプ11の端部に目皿16を取り付けると共に左官こて等で仕上げを行い、排水構造体1の施工を完了させる。 After forming the second crushed stone layer 22, the damper plate 14 is placed on the second crushed stone layer 22, and the cement 15 is placed on the damper plate 14 (step S5). When placing the cement, the opening is closed with a curing tape or the like so that the cement does not flow into the pipe 11. Then, the water permeable member 13 is inserted into the pipe 11 and installed. The water permeable member 13 is formed in advance to have substantially the same length as the pipe 11. Then, an eye plate 16 is attached to the end of the pipe 11 and finishing is performed with a plastering iron or the like, thereby completing the construction of the drainage structure 1.
最後に本発明にかかる排水構造体の他の実施形態の可能性について言及する。
上記実施形態において、排水管のパイプ側面に約60個の円形の小孔を設けた。しかし、この小孔の個数は特に限られるものではなく、地層の組成、排水管の長さ等による雨水の浸透効率を考慮して適宜設計することができる。また、小孔の形状も円形に限らず、パイプの長手方向へのスリットや、縦長又は横長形状の長孔等であってもよい。
Finally, reference is made to the possibility of another embodiment of the drainage structure according to the invention.
In the above embodiment, about 60 circular small holes are provided on the pipe side surface of the drain pipe. However, the number of small holes is not particularly limited, and can be appropriately designed in consideration of the penetration efficiency of rainwater depending on the composition of the formation, the length of the drainage pipe, and the like. Further, the shape of the small hole is not limited to a circle, and may be a slit in the longitudinal direction of the pipe, a long or long long hole, or the like.
また、上記実施形態において、地表層はコンクリート等の舗装材であった。しかし、地表層は舗装材に限らず、舗装されていない場合にも適用可能である。 Moreover, in the said embodiment, the surface layer was paving materials, such as concrete. However, the surface layer is not limited to paving materials, and can also be applied to cases where paving is not performed.
本発明は、歩道、道路等の地表面に生じる水たまりを解消させる排水構造体及び排水構造体の施工方法並びに排水構造体を用いた排水方法として利用することができる。また、歩道、道路等の他、広場、公園、テニスコートや運動場等にも適用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used as a drainage structure that eliminates a puddle generated on a ground surface such as a sidewalk or a road, a construction method of the drainage structure, and a drainage method using the drainage structure. In addition to sidewalks and roads, the present invention can also be applied to open spaces, parks, tennis courts, playgrounds, and the like.
1:排水構造体、2:地表層、3:地層、4:縦穴、4a:底部、5:水たまり、5a:底部、10:排水管、11:パイプ、12:小孔、13:透水部材、13a:糸状体(合成樹脂)、13b:中空部、14:ダンプレート、15:セメント、16:目皿、20:砕石層、21:第一砕石層、22:第二砕石層、30:砕石 1: drainage structure, 2: surface layer, 3: formation, 4: vertical hole, 4a: bottom, 5: puddle, 5a: bottom, 10: drainage pipe, 11: pipe, 12: small hole, 13: water-permeable member, 13a: filamentous body (synthetic resin), 13b: hollow part, 14: dump plate, 15: cement, 16: eye plate, 20: crushed stone layer, 21: first crushed stone layer, 22: second crushed stone layer, 30: crushed stone
Claims (7)
前記縦穴は前記水たまりの底部から前記地層内部まで掘削して形成され、前記排水管には側面に複数の小孔が設けられており、前記縦穴内面と前記排水管外面との間に砕石層を形成し、前記排水管の内部に立体網状構造の透水部材を有することを特徴とする排水構造体。 A drainage structure that drains the water in the puddle by guiding water in the puddle generated on the ground surface to the ground by a drain pipe installed in a vertical hole extending from the ground surface to the stratum,
The vertical hole is formed by excavating from the bottom of the puddle to the inside of the formation, and the drainage pipe is provided with a plurality of small holes on the side surface, and a crushed stone layer is formed between the vertical hole inner surface and the drainage pipe outer surface. A drainage structure formed and having a water permeable member having a three-dimensional network structure inside the drainage pipe.
前記地表面において前記水たまりが発生しうる箇所を特定し、前記水たまりの底部から前記地層内部まで前記縦穴を掘削し、前記縦穴に前記排水管を挿入すると共に、前記縦穴と前記排水管との間に砕石を投入して第二砕石層を形成する一方、前記排水管の内部に立体網状構造の透水部材を挿入することを特徴とする排水構造体の施工方法。 It is a construction method of the drainage structure according to claim 1,
The location where the puddle may occur on the ground surface is specified, the vertical hole is excavated from the bottom of the puddle to the inside of the formation, the drain pipe is inserted into the vertical hole, and the gap between the vertical hole and the drain pipe A construction method of a drainage structure characterized by inserting a crushed stone into a second crushed stone layer and inserting a water-permeable member having a three-dimensional network structure into the drainage pipe.
前記縦穴は前記水たまりの底部から前記地層内部まで掘削して形成され、前記排水管には側面に複数の小孔が設けられており、前記縦穴内面と前記排水管外面との間に砕石層を形成し、前記排水管の内部に立体網状構造の透水部材を有することを特徴とする排水構造体を用いた排水方法。 A drainage method using the drainage structure according to claim 1,
The vertical hole is formed by excavating from the bottom of the puddle to the inside of the formation, and the drainage pipe is provided with a plurality of small holes on the side surface, and a crushed stone layer is formed between the vertical hole inner surface and the drainage pipe outer surface. A drainage method using a drainage structure formed and having a water-permeable member having a three-dimensional network structure inside the drainage pipe.
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WO2009139419A1 (en) | 2008-05-14 | 2009-11-19 | 公立大学法人横浜市立大学 | Human hepatic stem cell, method for preparation of the same, method for induction of differentiation of the same, and method for utilization of the same |
JP2010013853A (en) * | 2008-07-03 | 2010-01-21 | Takahashi Doken Kk | Method of constructing drainage facility for road |
CN104818761A (en) * | 2015-05-19 | 2015-08-05 | 宏祥新材料股份有限公司 | Multi-layer compound three-dimensional waterproof drainage network |
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CN105714645A (en) * | 2014-12-22 | 2016-06-29 | 天津工众生物技术有限公司 | Construction method of permeable concrete pavements |
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Cited By (4)
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WO2009139419A1 (en) | 2008-05-14 | 2009-11-19 | 公立大学法人横浜市立大学 | Human hepatic stem cell, method for preparation of the same, method for induction of differentiation of the same, and method for utilization of the same |
JP2010013853A (en) * | 2008-07-03 | 2010-01-21 | Takahashi Doken Kk | Method of constructing drainage facility for road |
CN104818761A (en) * | 2015-05-19 | 2015-08-05 | 宏祥新材料股份有限公司 | Multi-layer compound three-dimensional waterproof drainage network |
KR101661520B1 (en) * | 2015-12-28 | 2016-09-30 | 김기범 | A Multifunctional infiltration drainage apparatus and a building method therof |
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