JP4587430B2 - Road gutter installation structure - Google Patents

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JP4587430B2
JP4587430B2 JP2001223354A JP2001223354A JP4587430B2 JP 4587430 B2 JP4587430 B2 JP 4587430B2 JP 2001223354 A JP2001223354 A JP 2001223354A JP 2001223354 A JP2001223354 A JP 2001223354A JP 4587430 B2 JP4587430 B2 JP 4587430B2
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opening
block
road
groove
lid
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JP2002348944A (en
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美穂 岸
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前田製管株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、道路の端に設置して雨水等を排水する側溝の設置構造に関し、特に普通舗装及び排水性舗装のいずれの道路にも適用可能であり、且つ排水機能の向上と通行面の障害を少なくした道路用側溝の設置構造に関する。
【0002】
【従来の技術】
道路上の雨水等を迅速に排水するためには、道路の舗装状態と、これに適合した構造の排水取り入れ口(排水口)を備えた側溝を設置する必要がある。すなわち、舗装道路には、路盤の上部にアスファルトなどの不透水層を設けた普通舗装の道路と、路盤の上部に不透水層を、更にその上に3〜5cmの厚さに空隙率の高い多孔質の透水層をそれぞれ設けた排水性舗装の道路に大別されるが、これらの道路の端に設置する側溝には道路の前記舗装構造にそれぞれ適合した排水口を形成することが必要である。
【0003】
普通舗装の道路では、雨水等を道路中央から左右の道路端に向け下降傾斜する勾配を利用して前記不透水層の表面を流下させ、これを道路の両端にそれぞれ設置した側溝内に排水口から導入している。排水口として、一般的には、一定間隔でグレーチングを設置したものや、蓋ブロックの側溝ブロックの側壁と当接する側の側端部に排水用凹部を設けたもの(実公昭50−43084号公報,特公昭56−2849号公報,実開昭57−168581号公報:第1従来例)、側溝ブロックの蓋ブロックと当接する側壁の内面に排水用凹部を設けたもの(特開平7−197512号公報:第2従来例)、蓋ブロックと側溝ブロックの両者に排水用凹部をそれぞれ設けたもの(特開平2001ー73446号公報:第3従来例)等がある。
【0004】
一方、道路の表層部を透水層で形成した排水性舗装の道路では、雨水等を前記透水層内に浸透させ、この浸透水を道路の端に設置した側溝に排水している。この場合の排水手段としては、側溝ブロックの側壁上端部に切欠凹部を形成するとゝもに、蓋受段部の前記切欠凹部の下方に通水溝を形成したもの(特開平10−266111号公報:第4従来例)、或いは又、蓋ブロックの前記切欠凹部と対面する側の下面に排水用凹部を形成したもの(特開平8−253946号公報:第5従来例)などがある。
【0005】
【発明が解決しようとする課題】
しかし、前記第1〜3従来例のものは、側溝ブロックの側壁の上端部をオーバーフローした水のみを側溝の上面側から側溝内に排水する構成であるため、道路側の雨水等を排水することは難しいし、これを排水性舗装の道路に設置した場合には、透水層内の浸透水を側溝内に排水することは不可能である。これに対し、第4及び第5従来例のものは、側溝ブロックの側壁上端部に切欠凹部を形成したものであるため、道路側及び透水層内の雨水等は前記切欠凹部から側溝内へ排水でき、第1〜3従来例のもつ前記問題点は解消される。
【0006】
しかし、前記第4及び第5従来例のものはいずれも、排水量において問題がある。すなわち、前記第4従来例のものにあっては、道路上,透水層及び側溝上の雨水を蓋受段部に形成した通水溝のみで、また第5従来例のものにあっては、蓋ブロックの下面に形成した排水用凹部のみで側溝内に導水する構成であるため、降雨量が多い場合には排水口から側溝内に導水することができず、側溝の上面や道路の路面が冠水する恐れがある。
【0007】
そこで、第4及び第5従来例のものにあっては、排水機能を向上させるため、前記切欠凹部の開口面積(高さ×奥行き)を大きく形成するとゝもに、通水溝又は排水用凹部を大きく形成することも考えられる。しかし、切欠凹部の開口面積を大きく形成すればするほど、側溝の上面には奥行き巾が大きく且つ段差の大きい切欠凹部が開口することになり、前記間隔に歩行者のつま先や、杖又はベビーカーなどの車輪が引っ掛かかったり、或いは上記段差部分につまずくなど、歩行者等の安全性の点で問題点がある。
【0008】
また通水溝又は排水用凹部を大きく形成すればするほど、蓋ブロックの下面とこれを支持する蓋受段部との接触面積が少なくなり、安定性がなくなる。その結果、蓋ブロックの上面を歩行者等が通過した場合に両ブロックの衝当音が発生したり、特に車両が頻繁に通過する場所にあっては次第に摩耗,損傷し、耐久性が著しく短くなるといった問題点もある。
【0009】
そこで、歩行者等の安全性を考慮したものとして、特開平9−242161号公報の図13には、蓋ブロックの上面に凹部などの開口部をなくしたものが提案されている。すなわち、側溝ブロックの側壁上端部に切欠凹部を形成するとゝもに、蓋ブロックの前記切欠凹部と対面する側の側端面に、上面から下方に下がった位置から内部下方に傾斜し、該傾斜面からほゞ垂直に垂下した蓋排水溝を形成したものが開示されている。これにより、蓋ブロックの側溝ブロックの側壁とが当接する部分に間隔が形成されることのないバリアフリー構造となり、歩行者等の安全性は確保できると言える。
【0010】
しかし、前記特開平9−242161号公報の図13に示すものは、蓋ブロックの上面には排水用の開口部がないので、道路上,透水層及び側溝上の雨水はいずれも、先ず一旦は前記切欠凹部内に入り、次にこの切欠凹部から前記蓋排水溝を通って側溝内に排水することになる。したがって、前記切欠凹部の開口面積が小さい場合には排水量が極端に減少し、排水量を補うために切欠凹部の開口面積を大きくした場合には上方に大きく開口するとゝもに、切欠凹部の高さも大きくなって大きな段差が生じることになり、バリアフリー化を図る発明の目的からはかけ離れたものになる、といった問題点がある。
【0011】
上記のように、道路用側溝ブロックでは、導水量を保ちながら尚且つ、歩行者の安全性を保持できる構造のものとするには種々の制約と一定の限界がある。本発明は、上記のような従来の問題点に鑑みてなされたもので、普通舗装及び排水性舗装のいずれの道路に設置した場合でも、長期間にわたって優れた排水機能を保持することができるとゝもに、従来の排水量を保ちながら、歩行者の安全性も確保できる道路用側溝の設置構造を提供することを目的としたものである。
【0012】
【課題を解決するための手段】
上記の目的を達成するため、本願の第1発明は、道路の端に設置して雨水等を排水する側溝の設置構造であって、略U字形状の側溝ブロックと、該側溝ブロックの両側壁上部内側に設けた蓋受段部に載置する蓋ブロックからなり、前記側溝ブロックの道路側の側壁上端部に切欠凹部を、前記蓋受段部に通水溝をそれぞれ形成するとゝもに、前記蓋ブロックの道路側の側端部には上面側,側面側及び下面側にそれぞれ開口部を有するL字状の手掛け孔を形成し、前記蓋ブロックをその上面側及び側面側の開口部が側溝ブロックの前記切欠凹部と、下面側の開口部が側溝ブロックの前記通水溝とそれぞれ対向する位置に位置に設置し、前記切欠凹部の道路側及び上方の開口と前記手掛け孔の上面側の開口部をフィルタで覆うとゝもに、該フィルタの上面と前記側溝ブロックの側壁の上端面及び前記蓋ブロックの上面とがそれぞれ同一平面となるように構成した
【0013】
上記の構成により、側溝の内外は、側溝の上面側に開口する開口部及び前記切欠凹部を介して側溝の外側と連通する側面側の開口部からなる排水口を備え、該排水口はその下方が下面側に開口する開口部と前記側溝ブロックの蓋受段部に形成した通水溝とで構成される導水路で連通されることになる。
【0014】
したがって、排水口の開口面積は前記両開口部の総和となって排水口の開口面積が大きくなり、且つ導水路の断面積も大きくなることにより、側溝内への導水量が増大するとゝもに、側溝の上面の雨水等は上面側の開口部から、また道路側の雨水等は前記切欠凹部を介して側面側の開口部からそれぞれ導水され、側溝の上面及び道路上の雨水等は迅速に排水される。
【0015】
また、側溝内へ導水するための排水口の開口面積が増大することから、従来の導水量を保ちながら、前記上面側の開口部の奥行き巾(側溝の長手方向に対して直交する方向の巾)を小さくし、且つ前記切欠凹部の高さを低く抑えることができ、歩行者のつま先等が引っ掛からないバリアフリー化が可能となり、排水機能の向上を図りながら歩行者等の安全性を確保できる。
【0016】
更に、前記切欠凹部の開口及び手掛け孔の上面側の開口部を大きく形成して排水機能を増大せしめた場合でも、通行人がつまずいたり或いは車椅子又はベビーカーの車輪が引っ掛かることがなく、排水機能の向上と歩行者等の安全性がより一層確保される。
【0017】
また本願の第2発明は、前記第1発明に係る道路用側溝の設置構造に加え、道路を上部から透水層,不透水層,路盤でそれぞれ構成した排水性舗装の道路の端に設置して雨水等を排水する側溝の設置構造であって、前記側溝ブロックの道路側の側壁に、一端開口部が前記透水層と対面する位置に開口し、他端開口部が前記蓋ブロックの手掛け孔の側面側の開口部と対面する位置に開口する貫通孔を形成した構成とした。
【0018】
これにより、降雨量が多く、透水層が浸透水により飽和状態になって道路面が冠水した場合でも、この冠水及び又は透水層の浸透水の一部は前記第1発明に係る道路用側溝により排水され、同時に、透水層内に浸透した雨水等の大部分は前記貫通孔から手掛け孔を通って側溝内に排水されるので、排水能力が向上する。
【0019】
また本願の第3の発明は、前記第2発明に係る道路用側溝の設置構造に加え、前記貫通孔の一端開口部にフィルタを装着した構成とした。この構成により、舗装用骨材等の側溝内への侵入を防止することができるとゝもに、手掛け孔の目詰まりが防止され、排水機能を長期にわたって維持することができる。
【0020】
そして更に、本願の第4の発明では、前記第2及び第3の発明において、前記側壁の外側面にあって前記貫通孔の開口部間に凹溝を形成してなる構成とした。この構成により、開口部間の浸透水を貫通孔の一端開口部にまで導き、貫通孔を通して側溝内へ迅速に排水することができる
【0021】
【発明の実施の形態】
以下、本発明を図面に示す実施形態により詳細に説明する。まず、本発明の第1実施形態に係る道路用側溝の設置構造について、図1乃至図4を参照しつつ説明すると、図において、1は側溝で、道路Rの端に連続して設置した側溝ブロック10,10と、該側溝ブロック10の上方開口部に載置した蓋ブロック20とから主に構成されている。
【0022】
前記側溝ブロック10は、底壁11と両側壁12,13からなるほゞU字形状のもので、前記両側壁12,13の上部内側には前記蓋ブロック20を載置する蓋受段部14が形成されており、道路R側に位置する一方の側壁13の上端部には複数個の切欠凹部15,15が長手方向に所定間隔で形成されている。16は前記蓋受段部14に形成した通水溝で、前記切欠凹部15の下方部に形成されており、該通水溝16と後述する蓋ブロック20の下面側に開口する開口部22Cとで導水路を構成している。
【0023】
前記蓋ブロック20は矩形状のもので、前記側溝ブロック10の蓋受段部14に載置して側溝ブロック10の上方開口部を閉塞するものであり、各蓋ブロック20の道路R側に位置する側端部21には、上面側,側面側及び下面側にそれぞれ開口部22A,22B,22Cを有するL字状の手掛け孔22が形成されている。そして、該蓋ブロック20を前記側溝ブロック10の蓋受段部14に載置した時に、その手掛け孔22は側溝ブロック10の前記切欠凹部15と対向する位置に設置する構成としている。
【0024】
ここで、前記蓋ブロック20には、大きな荷重がかかる車道沿いの側溝に設置するもの、すなわち、板厚が厚い盤状体で下面が平面で形成された図2に示す蓋ブロック20Aと、比較的小さい荷重がかかる歩道沿いの側溝に設置するもの、すなわち、板厚が薄く両側端部の下面に脚部23,23を突設した図3に示す蓋ブロック20Bの2つの形態がある。そして、これら蓋ブロック20A,20Bはいずれも、上記のように、道路R側に位置する側端部21に上面側,側面側及び下面側にそれぞれ開口する開口部22A,22B及び22Cを備え、これらの開口部が連続したL字状の手掛け孔22を備えている。
【0025】
そこで、この蓋ブロック20を、その手掛け孔22が側溝ブロック10の側壁13に形成した前記切欠凹部15と対向する位置に載置することにより、前記手掛け孔22の一方の開口部22Bは前記側溝ブロック10の側壁13の外側と前記切欠凹部15を介して連通する。
【0026】
すなわち、蓋ブロック20をその手掛け孔22が側溝ブロック10の前記切欠凹部15と対向する位置に載置することにより、手掛け孔22の側面側の開口部22Bは前記切欠凹部15の内側の開口と対面し、該開口部22Bの前記切欠凹部15の高さbの範囲で、手掛け孔22は側壁13の外側と連通する。また、前記手掛け孔22の他方の開口部、すなわち、上面側の開口部22Aは巾aの範囲で蓋ブロック20の上方と連通している。
【0027】
而して、図4に示すように、道路Rの端に側溝ブロック10を連続して埋設するとゝもに、各側溝ブロック10の上方開口部に蓋ブロック20を載置して側溝1を設置することにより、道路Rの上面をその勾配に沿って道路端方向へ流下した雨水等は、前記切欠凹部15から側面側の開口部22Bを通って手掛け孔22に入り、該手掛け孔22の下面側に開口する開口部22Cと前記側溝ブロック10の蓋受段部14に形成した通水溝16とで構成される導水路を通って側溝1内に排水される。また、蓋ブロック20の上面の雨水等は前記上面側の開口部22Aを通って手掛け孔22内に流入し、該手掛け孔22の開口部22Cと前記側溝ブロック10の通水溝16からなる導水路を通って側溝1内に排水される。
【0028】
上記のように、道路R側及び側溝1上の雨水等はそれぞれ手掛け孔22と導水路を通って側溝1内に排水されるが、この手掛け孔22には上面側の開口部22A(奥行き巾a)と、側面側の開口部22B(切欠凹部15の高さbの範囲)の2つの開口部をそれぞれ備えており、排水口の開口面積は前記両開口部22A,22Bの総和となるとゝもに、この排水口に連なる導水路の断面積も、手掛け孔22の下面側に開口する開口部22Cと前記側溝ブロック10の蓋受段部14に形成した通水溝16との総和となる。
【0029】
したがって、排水口が一個の排水口で構成されている従来のものと比較して大きな断面積を有する開口部となり、また排水口と連続する導水路の断面積も従来のものと比較して大きくなる。したがって、前記蓋ブロック20の上面側の開口部22Aの奥行き巾aと、側面側の開口部22Bと連通する前記切欠凹部15の高さbをそれぞれ小さくすることが可能となり、排水機能の向上を図りながら、歩行者の安全性を確保できる。
【0030】
図5及び図6は本発明の他の実施形態を示すもので、図中、10Aは排水性舗装の道路Bの端に設置して有効な側溝ブロックである。この側溝ブロック10Aは、前記側溝ブロック10の構成に加えて更に下記のような特徴を備えている。すなわち、前記排水性舗装の道路Bは、上部から透水層B1,不透水層B2,路盤B3でそれぞれ構成されており、前記側溝ブロック10Aの道路B側の側壁13には貫通孔17が長手方向に所定間隔で多数形成されている。
【0031】
この貫通孔17は前記切欠凹部15の直下に位置しており、該貫通孔17の側壁13の外側面側の開口部17aは前記透水層B1と対面する位置に開口し、内側面側の開口部17bは前記蓋ブロック20に形成した手掛け孔22の側面側の開口部22Bと対面する位置に開口しており、前記外側面側の開口部17aにはフィルタ40が装着されている。24は側壁13の外側面にあって前記貫通孔17の開口部17a,17a間に形成した凹溝で、該開口部17a,17a間の浸透水を貫通孔17の一端開口部17aまで導くためのものである。
【0032】
また、前記フィルタ40は、金属製円板に多数の孔を穿設したパンチングメタル或いは樹脂製フィルタなどで形成したものであり、該フィルタ40を貫通孔17の開口部17aに取り付けることにより、土砂等の側溝1内への流入を阻止するとゝもに、各貫通孔17の目詰まりを防止している。
【0033】
而して、透水層B1内に浸透した水は、該透水層B1と対面する位置に開口している開口部17aから貫通孔17に入り、他端の開口部17bから手掛け孔22内に流入し、該手掛け孔22の下面側の開口部22Cと前記側溝ブロック10の通水溝16からなる導水路を通って、側溝1内に排水される。また、降雨量が多く透水層B1が浸透水で飽和状態となって、透水層B1の上面を雨水等が側溝方向に流れる場合もあるが、この場合には、前記切欠凹部15から側面側の開口部22Bを通って手掛け孔22内に入り、導水路を通って側溝1内に排水されるとゝもに、残余の雨水等は蓋ブロック20の上面側の開口部22Aを通って手掛け孔22内に流入し、側溝1内に排水される。
【0034】
図7は本発明の更に異なる他実施形態を示すもので、前記側溝ブロック10と蓋ブロック20との組み合わせで形成される側溝1の開口にフィルタ41を設置したもので、これにより、歩行者等が側溝1上を通行する際の障害を取り除いた構成のものである。すなわち、側溝1の上方に開口している前記上面側の開口部22Aと切欠凹部15の上方開口に透水性を有する逆L字形のフィルタ41を被せ、該フィルタ41の水平部の上面と蓋ブロック20の上面及び側溝ブロック10の側壁13の上端面とが面一になるように構成したものであり、同時に、フィルタ41の垂直部で前記切欠凹部15の外側面をも覆っている。
【0035】
これにより、排水機能を維持しつつ側溝1の上面は面一となるので、側溝1の上面には、通行人や車両の交通の障害となる段差の解消が図られる。すなわち、歩行者の足や車椅子又はベビーカーの車輪、或いは杖の先等が引っ掛かる開口や段差などの障害を全くなくすことができ、歩行面の完全なるバリアフリー化を実現することができるとゝもに、土砂等の側溝1内への流入を阻止することができる。
【0036】
また、歩行面のバリアフリー化を図る他の手段としては、同じく図7に示すように、切欠凹部15の上面とその外側面のみを逆L字形のフィルタ42で覆い、該フィルタ42の水平部の上面と側溝ブロック10の側壁13の上端面を面一した構成としてもよい。特に、本発明における手掛け孔22は上面側と側面側にそれぞれ開口部22A,22Bを備えているので、上面側の開口部22Aの奥行き巾aを小さくすることも可能であり、切欠凹部15の上面のみを覆っても本発明の上記目的は達成できる。
【0037】
図8に示すものは前記切欠凹部15の他実施形態である。すなわち、間口が前記切欠凹部15と同一或いはこれより大きな巾とした切欠凹部18内に、前記側壁13の上端面と同じ高さの突起19を所定の間隔をおいて複数個突設した鋸歯状構造としたものである。これにより、前記切欠凹部18内には側壁13の上端面と同じ高さの突起19,19が多数立設することになり、従来の導水量を保ちながら、歩行面のバリアフリー化を図ることができる。
【0038】
【発明の効果】
本発明に係る道路用側溝の設置構造は、上記のような構成であるから、排水量が増大するとゝもに、側溝の上面及び道路側の雨水等を迅速に排水することができ、排水機能が向上する。また、前記側溝の開口及び又は開口部をフィルタで覆うことにより、側壁の上端面及び又は蓋ブロックの上面は同一平面となり、集水機能の向上を図りつつも、歩行面のバリアフリー化を図ることができ、歩行者等の安全性を確保することができる、といった諸効果がある。
【図面の簡単な説明】
【図1】 本発明の第1実施形態に係る道路用側溝の設置構造を示す斜視図である。
【図2】 蓋ブロックの上面側から見た斜視図(a)と、裏面側から見た斜視図(b)である。
【図3】 他の実施形態に係る蓋ブロックの上面側から見た斜視図(a)と、裏面側から見た斜視図(b)である。
【図4】 図1のIVーIV線断面拡大図である。
【図5】 本発明の第2実施形態に係る道路用側溝の設置構造を示す斜視図である。
【図6】 図5のVIーVI線断面拡大図である。
【図7】 本発明の第3実施形態に係る道路用側溝の設置構造を示す斜視図である。
【図8】 本発明の第4実施形態に係る道路用側溝の分解部分斜視図である。
【符号の説明】
1 側溝
10,10A 側溝ブロック
13 道路側の側壁
14 蓋受段部
15,18 切欠凹部
16 通水溝
17 貫通孔
17a,17b 開口部
19 突起
20 蓋ブロック
22 手掛け孔
22A 上面側の開口部
22B 側面側の開口部
22C 下面側の開口部
40,41,42 フィルタ
R 舗装道路
B 舗装道路
B1 透水層
B2 不透水層
B3 路盤
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an installation structure of a gutter that is installed at the end of a road and drains rainwater, etc., and is particularly applicable to any road of ordinary pavement and drainage pavement, and has an improved drainage function and obstruction of the traffic surface. The present invention relates to a road gutter installation structure that reduces the number of roads.
[0002]
[Prior art]
In order to quickly drain rainwater on the road, it is necessary to install a gutter with a pavement state of the road and a drainage intake (drainage) having a structure adapted to this. That is, in the paved road, a normal pavement road having an impermeable layer such as asphalt on the upper part of the roadbed, an impermeable layer on the upper part of the roadbed, and a thickness of 3 to 5 cm on top of that has a high porosity. It is roughly divided into drainage pavement roads with porous permeable layers, respectively, but it is necessary to form drainage outlets suitable for the pavement structure of the roads in the side grooves installed at the ends of these roads. is there.
[0003]
On ordinary pavement roads, the surface of the impermeable layer is made to flow down using the slope of the rain water, etc. descending from the center of the road toward the left and right road edges, and drainage outlets are installed in the gutters installed at both ends of the road. It is introduced from. In general, the drain outlet is provided with gratings at regular intervals, or provided with a drain recess at the side end of the lid block that contacts the side wall of the side groove block (Japanese Utility Model Publication No. 50-43084). , Japanese Patent Publication No. 56-2849, Japanese Utility Model Publication No. 57-168581: First conventional example), a drain recess provided on the inner surface of the side wall contacting the lid block of the side groove block (Japanese Patent Laid-Open No. 7-197512) Publication: Second Conventional Example), and a drain block provided in both the lid block and the side groove block (Japanese Patent Laid-Open No. 2001-73446: Third Conventional Example).
[0004]
On the other hand, in the drainage pavement road in which the surface layer portion of the road is formed of a water permeable layer, rainwater or the like is permeated into the water permeable layer, and the permeated water is drained into a gutter installed at the end of the road. As a drainage means in this case, when a notch recess is formed at the upper end of the side wall of the side groove block, a water flow groove is formed below the notch recess of the lid receiving step (Japanese Patent Laid-Open No. 10-266111). : A fourth conventional example), or a drain block with a concave portion for drainage formed on the lower surface of the lid block facing the notch concave portion (JP-A-8-253946: fifth conventional example).
[0005]
[Problems to be solved by the invention]
However, since the first to third conventional examples are configured to drain only the water overflowing the upper end of the side wall of the side groove block into the side groove from the upper surface side of the side groove, drain the rain water on the road side. It is difficult to drain the permeated water in the permeable layer into the gutter when it is installed on a drainage pavement. On the other hand, in the fourth and fifth conventional examples, a notch recess is formed in the upper end of the side wall of the side groove block, so that rainwater and the like in the road side and the permeable layer are drained from the notch recess into the side groove. This eliminates the above-mentioned problems of the first to third conventional examples.
[0006]
However, both the fourth and fifth conventional examples have a problem in the amount of drainage. That is, in the fourth conventional example, only in the water flow groove formed in the lid receiving step portion on the road, the permeable layer and the side groove, and in the fifth conventional example, Since it is configured to guide water into the side ditch only with the concave part for drainage formed on the lower surface of the lid block, when there is a lot of rainfall, water cannot be introduced into the side ditch from the drain outlet, and the upper surface of the side ditch and the road surface of the road There is a risk of flooding.
[0007]
Therefore, in the fourth and fifth conventional examples, in order to improve the drainage function, when the opening area (height x depth) of the notch recess is formed large, the water passage groove or drainage recess It is also conceivable to form a large. However, the larger the opening area of the notch recess, the greater the depth and width of the notch recess on the top of the side groove, and the pedestal toe, cane, stroller, etc. There is a problem in terms of safety of pedestrians and the like, such as a wheel being caught or tripping on the stepped portion.
[0008]
Further, the larger the water passage groove or the drainage recess, the smaller the contact area between the lower surface of the lid block and the lid receiving step portion that supports the lid block, and the stability is lost. As a result, when a pedestrian or the like passes through the upper surface of the lid block, an impact sound of both blocks is generated, and particularly in places where the vehicle passes frequently, wear and damage gradually occur, and the durability is remarkably shortened. There is also the problem of becoming.
[0009]
In view of the safety of pedestrians and the like, FIG. 13 of Japanese Patent Application Laid-Open No. 9-242161 proposes a device in which an opening such as a recess is eliminated from the upper surface of the lid block. That is, when a notch recess is formed in the upper end portion of the side wall of the side groove block, the side end surface of the lid block on the side facing the notch recess is inclined downward from the upper surface to the inside downward. A cover drainage groove that hangs vertically is disclosed. Thereby, it can be said that it becomes a barrier free structure without a space | interval being formed in the part which the side wall block side wall of a cover block contacts, and it can be said that the safety of a pedestrian etc. can be ensured.
[0010]
However, the one shown in FIG. 13 of the Japanese Patent Laid-Open No. 9-242161 has no drainage opening on the upper surface of the lid block. It enters into the notch recess, and then drains from the notch recess through the lid drain groove into the side groove. Therefore, when the opening area of the notch recess is small, the amount of drainage is extremely reduced, and when the opening area of the notch recess is increased to compensate for the drainage amount, if the opening is increased upward, the height of the notch recess is also increased. There is a problem that it becomes large and a large step is generated, which is far from the object of the invention for achieving barrier free.
[0011]
As described above, the road side gutter block has various restrictions and certain limits in order to maintain a pedestrian safety while maintaining a water conveyance amount. The present invention has been made in view of the conventional problems as described above, and can maintain an excellent drainage function over a long period of time even when installed on any road of ordinary pavement and drainage pavement. In addition, the purpose of the present invention is to provide a road gutter installation structure that can secure the safety of pedestrians while maintaining the conventional amount of drainage.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, a first invention of the present application is an installation structure of a side groove that is installed at an end of a road and drains rainwater, etc., and has a substantially U-shaped side groove block and both side walls of the side groove block. It consists of a lid block placed on the lid receiving step provided on the inner side of the upper side, and when a notch recess is formed in the upper end of the side wall on the road side of the side groove block and a water flow groove is formed in the lid receiving step, respectively, An L-shaped handle hole having openings on the upper surface side, the side surface side, and the lower surface side is formed at the side end portion on the road side of the lid block, and the opening portions on the upper surface side and the side surface side of the lid block are formed. The notch recess of the side groove block and the opening on the lower surface side are installed at positions facing the water flow grooves of the side groove block, respectively , on the road side and upper opening of the notch recess and on the upper surface side of the handle hole. When the opening is covered with a filter, the filter Top and the upper surface of the upper end surface and the cover block of the side walls of the groove block is constructed so that each the same plane.
[0013]
With the above configuration, the inside and outside of the side groove are provided with a drain opening comprising an opening opening on the upper surface side of the side groove and a side opening opening communicating with the outside of the side groove through the notch recess, Are communicated with each other through a water conduit constituted by an opening portion opened on the lower surface side and a water flow groove formed in the lid receiving step portion of the side groove block.
[0014]
Therefore, the opening area of the drainage opening is the sum of the two openings, and the opening area of the drainage opening is increased, and the cross-sectional area of the water conduit is increased, so that the amount of water flow into the side groove increases. The rainwater on the upper surface of the gutter is led from the opening on the upper surface side, and the rainwater on the road side is led from the opening on the side surface through the notch recess, so that the upper surface of the gutter and the rainwater on the road quickly Drained.
[0015]
Further, since the opening area of the drain outlet for introducing water into the side groove increases, the depth width of the opening on the upper surface side (width in the direction perpendicular to the longitudinal direction of the side groove) while maintaining the conventional water introduction amount. ) And the height of the notch recess can be kept low, making it possible for the pedestrian toes and the like to be free of barriers, and ensuring the safety of pedestrians while improving the drainage function. .
[0016]
Furthermore, even when the opening of the notch recess and the opening on the upper surface side of the handle hole are formed to increase the drainage function, the passerby does not trip or the wheelchair or stroller wheel does not get caught, Improvement and safety of pedestrians are further secured.
[0017]
In addition to the road gutter installation structure according to the first invention, the second invention of the present application is installed at the end of a drainage pavement composed of a water-permeable layer, a water-impermeable layer, and a roadbed from the top. A side groove installation structure for draining rainwater or the like, wherein one end opening is opened at a position facing the water permeable layer on the road side wall of the side groove block, and the other end opening is a handle hole of the lid block. It was set as the structure which formed the through-hole opened in the position which faces the opening part of a side surface side.
[0018]
As a result, even when the amount of rainfall is large and the permeable layer is saturated with the infiltrated water and the road surface is submerged, a part of the inundated water and / or the osmotic water of the permeable layer is caused by the road side groove according to the first aspect of the invention. At the same time, most of the rainwater or the like that has been drained and penetrated into the permeable layer is drained from the through hole through the handle hole into the side groove, so that the drainage capacity is improved.
[0019]
The third invention of the present application is configured such that a filter is attached to one end opening of the through hole in addition to the road gutter installation structure according to the second invention. With this configuration, it is possible to prevent the entry of the aggregate for paving into the side groove, and at the same time, clogging of the handle hole is prevented, and the drainage function can be maintained over a long period of time.
[0020]
Further, in the fourth invention of the present application, in the second and third inventions, a concave groove is formed between the openings of the through holes on the outer surface of the side wall. With this configuration, the permeated water between the openings can be guided to the one end opening of the through hole, and can be quickly drained into the side groove through the through hole .
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. First, the road gutter installation structure according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. In FIG. 1, 1 is a side gutter, which is a gutter installed continuously at the end of the road R. The blocks 10 and 10 and the lid block 20 placed in the upper opening of the side groove block 10 are mainly configured.
[0022]
The side groove block 10 has a substantially U-shape comprising a bottom wall 11 and both side walls 12, 13, and a lid receiving step 14 for mounting the lid block 20 on the upper side of the side walls 12, 13. A plurality of cutout recesses 15 are formed at predetermined intervals in the longitudinal direction at the upper end of one side wall 13 located on the road R side. Reference numeral 16 denotes a water passage groove formed in the lid receiving step portion 14, which is formed in the lower portion of the notch recess 15. The water passage groove 16 and an opening 22 </ b> C that opens to the lower surface side of the lid block 20 described later. The waterway is composed of.
[0023]
The lid block 20 has a rectangular shape and is placed on the lid receiving step 14 of the side groove block 10 to close the upper opening of the side groove block 10, and is located on the road R side of each lid block 20. The side end portion 21 is formed with an L-shaped handle hole 22 having openings 22A, 22B, and 22C on the upper surface side, the side surface side, and the lower surface side, respectively. When the lid block 20 is placed on the lid receiving step 14 of the side groove block 10, the handle hole 22 is installed at a position facing the notch recess 15 of the side groove block 10.
[0024]
Here, the lid block 20 is installed in a side groove along a roadway where a large load is applied, that is, a lid block 20A shown in FIG. There are two forms of a lid block 20B shown in FIG. 3 that is installed in a side groove along a sidewalk where a relatively small load is applied, that is, the plate thickness is thin and leg portions 23, 23 project from the lower surfaces of both end portions. And as above-mentioned, these cover blocks 20A and 20B are each equipped with the opening parts 22A, 22B, and 22C opened to the upper surface side, the side surface side, and the lower surface side in the side end part 21 located in the road R side, respectively. These openings are provided with L-shaped handle holes 22 that are continuous.
[0025]
Therefore, by placing the lid block 20 at a position where the handle hole 22 faces the notch recess 15 formed in the side wall 13 of the side groove block 10, one opening 22B of the handle hole 22 becomes the side groove. The outside of the side wall 13 of the block 10 communicates with the notch recess 15.
[0026]
That is, by placing the lid block 20 at a position where the handle hole 22 faces the notch recess 15 of the side groove block 10, the opening 22 B on the side surface side of the handle hole 22 has an opening inside the notch recess 15. The facing hole 22 communicates with the outside of the side wall 13 in the range of the height b of the notch recess 15 of the opening 22B. The other opening of the handle hole 22, that is, the opening 22A on the upper surface side, communicates with the upper portion of the lid block 20 within the range of the width a.
[0027]
Thus, as shown in FIG. 4, when the side groove block 10 is continuously embedded at the end of the road R, the lid block 20 is placed in the upper opening of each side groove block 10 to install the side groove 1. As a result, rainwater or the like flowing down the upper surface of the road R along the slope toward the road edge enters the handle hole 22 from the cutout recess 15 through the side opening 22B, and the lower surface of the handle hole 22 The water is drained into the side groove 1 through a water conduit formed by the opening 22 </ b> C opening to the side and the water flow groove 16 formed in the lid receiving step 14 of the side groove block 10. Further, rain water or the like on the upper surface of the lid block 20 flows into the handle hole 22 through the opening portion 22A on the upper surface side, and is guided by the opening portion 22C of the handle hole 22 and the water flow groove 16 of the side groove block 10. The water is drained into the gutter 1 through the water channel.
[0028]
As described above, rainwater and the like on the road R side and the side groove 1 are drained into the side groove 1 through the handle hole 22 and the water conduit, respectively, and the handle hole 22 has an opening 22A (depth width) on the upper surface side. a) and two opening portions 22B (the range of the height b of the notch recess 15) on the side surface side, and the opening area of the drainage port is the sum of both the opening portions 22A and 22B. In addition, the cross-sectional area of the water conduit that leads to the drainage port is also the sum of the opening 22 </ b> C that opens on the lower surface side of the handle hole 22 and the water flow groove 16 that is formed in the lid receiving step 14 of the side groove block 10. .
[0029]
Therefore, the opening has a large cross-sectional area compared to the conventional one in which the drain outlet is constituted by one drain outlet, and the cross-sectional area of the water conduit continuing to the drain outlet is also large compared to the conventional one. Become. Therefore, the depth width a of the opening 22A on the upper surface side of the lid block 20 and the height b of the notch recess 15 communicating with the opening 22B on the side surface can be reduced, respectively, and the drainage function can be improved. While planning, the safety of pedestrians can be secured.
[0030]
5 and 6 show another embodiment of the present invention. In the figure, reference numeral 10A denotes a gutter block that is effective at the end of the road B of drainage pavement. In addition to the configuration of the side groove block 10, the side groove block 10A further includes the following features. That is, the drainage pavement road B is composed of a permeable layer B1, an impermeable layer B2, and a roadbed B3 from the top, and a through-hole 17 is provided in the side wall 13 of the side groove block 10A on the road B side in the longitudinal direction. Are formed at predetermined intervals.
[0031]
The through hole 17 is located immediately below the notch recess 15, and the opening 17 a on the outer surface side of the side wall 13 of the through hole 17 opens to a position facing the water permeable layer B 1, and opens on the inner surface side. The portion 17b opens at a position facing the opening 22B on the side surface side of the handle hole 22 formed in the lid block 20, and a filter 40 is attached to the opening 17a on the outer surface side. A concave groove 24 is formed on the outer surface of the side wall 13 and formed between the openings 17a and 17a of the through-hole 17 so as to guide permeated water between the openings 17a and 17a to the one-end opening 17a of the through-hole 17. belongs to.
[0032]
The filter 40 is formed of a punching metal or a resin filter having a large number of holes formed in a metal disk, and the filter 40 is attached to the opening 17a of the through-hole 17 so that When the inflow into the side grooves 1 is prevented, clogging of each through hole 17 is prevented.
[0033]
Thus, the water that has permeated into the water permeable layer B1 enters the through hole 17 from the opening 17a that opens to the position facing the water permeable layer B1, and flows into the handle hole 22 from the opening 17b at the other end. Then, the water is drained into the side groove 1 through a water conduit formed by the opening 22 </ b> C on the lower surface side of the handle hole 22 and the water channel 16 of the side groove block 10. Further, there is a case where the amount of rainfall is large and the permeable layer B1 is saturated with the infiltrated water, and rainwater or the like flows in the direction of the side groove on the upper surface of the permeable layer B1. When the water enters the handle hole 22 through the opening 22B, drains into the side groove 1 through the water conduit, the remaining rainwater and the like pass through the opening 22A on the upper surface side of the lid block 20 and the handle hole. 22 flows into the side groove 1 and drains.
[0034]
FIG. 7 shows still another embodiment of the present invention, in which a filter 41 is installed in the opening of the side groove 1 formed by the combination of the side groove block 10 and the lid block 20, thereby enabling a pedestrian or the like. Is configured to remove the obstacle when passing on the side groove 1. That is, the upper L side opening 22A and the upper opening of the notch recess 15 that are open above the side groove 1 are covered with a reverse L-shaped filter 41 having water permeability, and the upper surface of the horizontal portion of the filter 41 and the lid block The upper surface of 20 and the upper end surface of the side wall 13 of the side groove block 10 are configured to be flush with each other. At the same time, the vertical portion of the filter 41 covers the outer surface of the notch recess 15.
[0035]
As a result, the upper surface of the side groove 1 is flush with the drainage function maintained, and therefore, the upper surface of the side groove 1 can eliminate a step that becomes an obstacle to traffic of passers-by and vehicles. In other words, it is possible to completely eliminate obstacles such as openings and steps where a pedestrian's foot, wheelchair or stroller wheel, or the tip of a cane is caught, and it is possible to realize a completely barrier-free walking surface. In addition, inflow of earth and sand into the side groove 1 can be prevented.
[0036]
Further, as another means for making the walking surface barrier-free, as shown in FIG. 7, only the upper surface and the outer surface of the notch recess 15 are covered with an inverted L-shaped filter 42, and the horizontal portion of the filter 42 is covered. It is good also as a structure which leveled the upper surface of these and the upper end surface of the side wall 13 of the gutter block 10. In particular, the handle hole 22 in the present invention is provided with the openings 22A and 22B on the upper surface side and the side surface side, respectively, so that the depth width a of the opening 22A on the upper surface side can be reduced. Even if only the upper surface is covered, the above object of the present invention can be achieved.
[0037]
FIG. 8 shows another embodiment of the notch recess 15. That is, a sawtooth shape in which a plurality of protrusions 19 having the same height as the upper end surface of the side wall 13 are provided at predetermined intervals in a notch recess 18 having a front opening equal to or larger than the notch recess 15. It is structured. As a result, a large number of protrusions 19 and 19 having the same height as the upper end surface of the side wall 13 are erected in the notch recess 18 so as to make the walking surface barrier-free while maintaining the conventional water conveyance amount. Can do.
[0038]
【The invention's effect】
Since the road gutter installation structure according to the present invention is configured as described above, when the amount of drainage increases, the top surface of the gutter and the rainwater on the road side can be quickly drained, and the drainage function is improved. improves. Also, by covering the opening and / or opening of the side groove with a filter, the upper end surface of the side wall and / or the upper surface of the lid block are flush with each other, and the walking surface is made barrier-free while improving the water collecting function. Can be obtained, and the safety of pedestrians and the like can be ensured.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an installation structure for a road gutter according to a first embodiment of the present invention.
FIG. 2 is a perspective view (a) viewed from the top surface side of the lid block and a perspective view (b) viewed from the back surface side.
FIG. 3 is a perspective view (a) viewed from the upper surface side and a perspective view (b) viewed from the back surface side of a lid block according to another embodiment.
4 is an enlarged cross-sectional view taken along the line IV-IV in FIG.
FIG. 5 is a perspective view showing an installation structure of a road gutter according to a second embodiment of the present invention.
6 is an enlarged cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a perspective view showing an installation structure of a road gutter according to a third embodiment of the present invention.
FIG. 8 is an exploded partial perspective view of a road gutter according to a fourth embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Side groove 10, 10A Side groove block 13 Road side wall 14 Lid receiving step part 15, 18 Notch recessed part 16 Water flow groove 17 Through-hole 17a, 17b Opening part 19 Protrusion 20 Lid block 22 Handle hole 22A Upper surface side opening part 22B Side surface Side opening 22C lower surface side opening 40, 41, 42 Filter R paved road
B Paved road
B1 permeable layer
B2 impermeable layer
B3 roadbed

Claims (5)

道路の端に設置して雨水等を排水する側溝の設置構造であって、略U字形状の側溝ブロックと、該側溝ブロックの両側壁上部内側に設けた蓋受段部に載置する蓋ブロックからなり、前記側溝ブロックの道路側の側壁上端部に切欠凹部を、前記蓋受段部に通水溝をそれぞれ形成するとゝもに、前記蓋ブロックの道路側の側端部には上面側,側面側及び下面側にそれぞれ開口部を有するL字状の手掛け孔を形成し、前記蓋ブロックをその上面側及び側面側の開口部が側溝ブロックの前記切欠凹部と、下面側の開口部が側溝ブロックの前記通水溝とそれぞれ対向する位置に設置し、前記切欠凹部の道路側及び上方の開口と前記手掛け孔の上面側の開口部をフィルタで覆うとゝもに、該フィルタの上面と前記側溝ブロックの側壁の上端面及び前記蓋ブロックの上面とがそれぞれ同一平面となるように構成したことを特徴とする道路用側溝の設置構造。An installation structure of a side groove that is installed at the end of a road and drains rainwater, etc., and has a substantially U-shaped side groove block and a lid block that is placed on a lid receiving step provided on the upper side of both side walls of the side groove block The side groove on the road side of the gutter block is formed with a notch recess, and a water flow groove is formed on the lid receiving step part. L-shaped handle holes having openings on the side surface side and the lower surface side are formed, and the opening on the upper surface side and the side surface side of the lid block is the notch recess of the side groove block, and the opening on the lower surface side is a side groove. It is installed at a position facing each of the water flow grooves of the block, and the road side and upper opening of the notch recess and the upper opening side of the handle hole are covered with a filter. The upper end surface of the side wall of the side groove block and the lid Installation structure of road gutter and the upper surface of the click is characterized by being configured so that each the same plane. 道路を上部から透水層,不透水層,路盤でそれぞれ構成した排水性舗装の道路の端に設置して雨水等を排水する側溝の設置構造であって、前記側溝ブロックの道路側の側壁に、一端開口部が前記透水層と対面する位置に開口し、他端開口部が蓋ブロックの前記手掛け孔の側面側の開口部と対面する位置に開口する貫通孔を形成したことを特徴とする請求項1記載の道路用側溝の設置構造。It is an installation structure of a gutter that drains rainwater etc. by installing it on the end of a drainage pavement composed of a permeable layer, an impermeable layer, and a roadbed from the top, on the side wall on the road side of the gutter block, claims opening at one end is opened at a position facing the water permeable layer, and the other end opening, characterized in that the formation of the through-hole opened at a position facing the working side surface of the opening portion of the hole in the lid block Item 1. An installation structure of a road gutter according to item 1 . 前記貫通孔の一端開口部にフィルタを装着したことを特徴とする請求項2記載の道路用側溝の設置構造。 The road gutter installation structure according to claim 2, wherein a filter is attached to one end opening of the through hole. 前記側壁の外側面にあって前記貫通孔の開口部間に凹溝を形成したことを特徴とする請求項2又は3記載の道路用側溝の設置構造。The road gutter installation structure according to claim 2 or 3, wherein a concave groove is formed on an outer surface of the side wall and between openings of the through hole. 前記フィルタをパンチングメタル又は合成樹脂により形成したことを特徴とする請求項1,2,3又は4記載の道路用側溝の設置構造。 The road gutter installation structure according to claim 1, 2, 3, or 4, wherein the filter is formed of a punching metal or a synthetic resin.
JP2001223354A 2001-03-23 2001-07-24 Road gutter installation structure Expired - Lifetime JP4587430B2 (en)

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JP6924489B2 (en) * 2018-04-20 2021-08-25 カサイコンクリート株式会社 Concrete lid member for U-shaped gutters
CN109245012B (en) * 2018-12-05 2024-04-12 贵州电网有限责任公司 Cable trench cover plate
JP7089816B1 (en) 2021-12-06 2022-06-23 株式会社宝機材 A lid member, a method for manufacturing the lid member, a buried structure, and a drainage structure provided with the lid member and the buried structure.

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JPS62181688U (en) * 1986-05-06 1987-11-18
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JPH07238585A (en) * 1994-02-28 1995-09-12 Fujimura Fume Kan Kk Street drain and street drain cover, as well as manufacture of street drain
JPH09242161A (en) * 1996-03-06 1997-09-16 Shinwa Concrete Kogyo Kk Side channel
JPH10266111A (en) * 1997-03-28 1998-10-06 Fujimura Fume Kan Kk Road structure
JPH11152787A (en) * 1997-11-21 1999-06-08 Kawano Plant Co Ltd Cover for water-conveyance ditch and structure of water-conveyance ditch
JPH11269969A (en) * 1998-03-26 1999-10-05 Ibigawa Concrete Kogyo Kk Water guiding member, gutter block for mounting water guiding member, and gutter block fitted with water guiding member
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JPS62181688U (en) * 1986-05-06 1987-11-18
JPH0371179U (en) * 1989-11-15 1991-07-18
JPH07238585A (en) * 1994-02-28 1995-09-12 Fujimura Fume Kan Kk Street drain and street drain cover, as well as manufacture of street drain
JPH09242161A (en) * 1996-03-06 1997-09-16 Shinwa Concrete Kogyo Kk Side channel
JPH10266111A (en) * 1997-03-28 1998-10-06 Fujimura Fume Kan Kk Road structure
JPH11152787A (en) * 1997-11-21 1999-06-08 Kawano Plant Co Ltd Cover for water-conveyance ditch and structure of water-conveyance ditch
JPH11269969A (en) * 1998-03-26 1999-10-05 Ibigawa Concrete Kogyo Kk Water guiding member, gutter block for mounting water guiding member, and gutter block fitted with water guiding member
JPH11280015A (en) * 1998-03-27 1999-10-12 Kyushu Precast Kyokai:Kk Concrete type covered conduit
JP2000054474A (en) * 1998-08-11 2000-02-22 Kaiee Techno:Kk Culvert block for drainable thin layer pavement
JP2001073446A (en) * 1999-09-07 2001-03-21 Hokuetsu:Kk Concrete side-ditch structure taking pedestrian's walk into consideration, and simplified attaching/detaching device for side-ditch cover constituting the concrete side-ditch structure

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