JP2019052471A - Drain ditch - Google Patents
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Abstract
Description
本発明は、橋梁や道路等(以下、これらを代表して単に道路という)の路肩の地覆又は壁高欄に沿って設置される排水溝に関する。 The present invention relates to a drainage ditch installed along a shoulder cover or a wall rail of a bridge, a road or the like (hereinafter simply referred to as a road).
道路の多くには、排水路として路肩に沿って排水溝や排水桝が設置され、道路に降り注いだ雨水は排水溝や排水桝に流入し、排出されるようにしてある。この種の排水溝の一つに排水溝が凹形の排水枠と、該排水枠上に被さるカバーよりなり、排水溝の一部がコンクリート製の地覆に埋設されるものが知られる(特許文献1)。 In many roads, drainage channels and drainage basins are installed along the shoulders as drainage channels, and rainwater that falls on the road flows into the drainage channels and drainage basins and is discharged. One of the drainage grooves of this type is a drainage groove having a concave drainage frame and a cover covering the drainage frame, and a part of the drainage groove is embedded in a concrete ground cover (patent) Reference 1).
排水溝の通水面積を拡げるには、排水溝の溝幅を拡げる方法、深さを深くする方法又は両方法を組合わせる方法があるが、溝幅を拡げるのは路面に露出する面積が大きくなり、排水溝に被さるカバーが金属製である場合とくに、自動車、とりわけバイクや自転車がスリップして転倒する事故を起こし易くなる。排水溝を深くするのも地面の掘削量が増え、施工コストを上昇させる。 There are two ways to increase the water flow area of the drainage channel: widening the width of the drainage channel, deepening the depth, or a combination of both methods, but increasing the groove width increases the area exposed on the road surface. In particular, when the cover covering the drainage groove is made of metal, an accident in which an automobile, particularly a motorcycle or a bicycle slips and falls is likely to occur. Deepening the drainage ditch also increases the amount of excavation on the ground and increases construction costs.
この点、特許文献1に記載されるように、一部を地覆に埋設させる排水溝では、路面に露出する面積を増やすことなく、また深さを深くすることなく通水面積を増やすことが可能である。 In this regard, as described in Patent Document 1, in the drainage groove partially embedded in the ground cover, the water flow area can be increased without increasing the area exposed on the road surface and without increasing the depth. Is possible.
本発明は、コンクリート製の地覆や壁高欄に排水溝の一部を埋設することによって、路面での露出面積を増やすことなく、また深さを深くすることなく通水面積を増やすことができるようにしたものであるが、この場合の一つの問題は、地覆や壁高欄のコンクリート部分と、排水溝との境界部より雨水が浸透して地覆や壁高欄内の鉄筋や、鋼製排水溝のコンクリートで覆われる部分が腐食し易くなることである。 The present invention can increase the water flow area without increasing the exposed area on the road surface and without increasing the depth by embedding a part of the drainage groove in the concrete ground cover or wall rail. However, one problem in this case is that rainwater penetrates from the boundary between the concrete part of the ground cover and wall rail and the drainage ditch, and the steel bars and steel bars in the ground cover and wall rail are made of steel. The part covered with concrete in the drainage channel is likely to corrode.
本発明は、この問題を解消するためになされたもので、地震や高欄へのコンクリート部分と排水溝との境目より浸透する雨水を遮断し、雨水がそれ以上奥に浸透しないようにする排水溝を提供することを目的とする。 The present invention was made to solve this problem, and drainage grooves that block rainwater penetrating from the boundary between an earthquake and a railing to a railing and a drainage groove so that the rainwater does not penetrate further. The purpose is to provide.
請求項1に係る発明は、道路等の路肩に沿って設置され、一部がコンクリート製の地覆又は壁高欄に埋設される鋼製の排水溝であって、該排水溝の地覆又は壁高欄に埋設される箇所には、地覆又は壁高欄のコンクリート部分と排水溝との境目より浸透する雨水を遮る遮水部を上向きに突出して設けたことを特徴とする。 The invention according to claim 1 is a steel drainage groove which is installed along a shoulder of a road or the like, and a part of which is buried in a concrete ground cover or a wall rail, and the ground cover or wall of the drainage groove. The place buried in the railing is provided with a water-impervious portion that protrudes upward from the boundary between the ground cover or the concrete portion of the wall rail and the drainage groove, and projects upward.
請求項2に係る発明は、請求項1に係る発明において、前記排水溝の地覆又は壁高欄に埋設される箇所には、前記遮水部で遮られた雨水を排水溝内に流出させるための流出孔を形成したことを特徴とし、
請求項3に係る発明は、請求項1又は2に係る発明において、前記排水溝が鋼製で、底壁と、底壁両側の側壁よりなる断面凹形の排水路4と、該排水路上に被さり、少なくとも一部が取外し可能であるカバーよりなり、前記遮水部が前記排水路を構成する側壁の延長上に該側壁と一体をなして形成されることを特徴とする。
According to a second aspect of the present invention, in the first aspect of the present invention, in order to allow rainwater blocked by the water blocking portion to flow out into the drainage ditch at a place buried in the ground cover or wall rail of the drainage ditch. Characterized by the formation of an outflow hole,
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the drainage groove is made of steel, the bottom wall, the drainage channel 4 having a concave cross section composed of side walls on both sides of the bottom wall, and the drainage channel on the drainage channel. The cover is formed of a cover that can be removed at least partially, and the water shielding portion is formed integrally with the side wall on an extension of the side wall constituting the drainage channel.
請求項1に係る発明によると、地覆又は壁高欄のコンクリート部受と排水溝との境界部分より雨水が浸透するようなことがあっても遮水部で遮られ、それ以上地覆又は壁高欄間に浸透するのを妨げることができる。 According to the invention of claim 1, even if rainwater permeates from the boundary portion between the ground cover or the concrete section receptacle of the wall rail and the drainage groove, it is blocked by the water blocking portion, and the ground cover or wall is further exceeded Can prevent penetration between rails.
請求項2に係る発明のよると、遮水部で遮られた雨水は地覆又は壁高欄内に溜まることなく、流出孔より排水路内に排出されるようになる。 According to the invention which concerns on Claim 2, the rainwater blocked | interrupted by the water-blocking part comes to be discharged | emitted in a drainage channel from an outflow hole, without collecting in a ground cover or a wall rail.
請求項3に係る発明によると、遮水部を別工程を要することなく、排水路製作時に同時に形成することができる。 According to the invention which concerns on Claim 3, a water-impervious part can be formed simultaneously at the time of drainage channel manufacture, without requiring another process.
以下、本発明に係る排水溝の実施形態について図面により説明する。
図1は、全体を符号1で示す排水溝の平面図、図2は正面図、図3は断面図で、排水溝1は断面が凹形をなす排水路としての排水枠2と、該排水枠上に被さるカバー3とよりなり、排水枠2は図1〜図3に示すように、底壁2aと、該底壁2aの両端より立ち上がる側壁2b及び2cと、底壁上に一定間隔で二列、上向きに突設される支柱2dよりなり、前記側壁2b及び2cのうち、背丈の低い道路側の側壁2bには、外側方に突出するアンカー2eが複数か所、固着されていると共に、内側方に突出する受材2fが前記アンカー2eの両側に位置して固着されている。
Hereinafter, an embodiment of a drain ditch according to the present invention will be described with reference to the drawings.
1 is a plan view of a drainage groove generally indicated by reference numeral 1, FIG. 2 is a front view, FIG. 3 is a cross-sectional view, and the drainage groove 1 is a drainage frame 2 as a drainage channel having a concave cross section, and the drainage As shown in FIGS. 1 to 3, the drainage frame 2 has a bottom wall 2a, side walls 2b and 2c rising from both ends of the bottom wall 2a, and a constant interval on the bottom wall. It consists of two rows of columns 2d projecting upward. Among the side walls 2b and 2c, a plurality of anchors 2e projecting outward are fixed to the side wall 2b on the road side having a low height. The receiving material 2f projecting inward is fixed on both sides of the anchor 2e.
側壁2bの反対側に該側壁2bと対峙して突設される側壁2cは、前記側壁2bより背が高く、両端に上向き及び下向きに突出形成されるフランジ状の立上がり部3a及び垂直部3bを備えた水平な支持金具3cの立上がり部3aが側壁2cの上側部内側面に当てられ、かつ立上がり部上端を側壁上端に揃えた状態でボルト4とナット5にて側壁長手方向に沿って複数か所、適当間隔にて止着されている。そして側壁2c外側には中央部と、その両側にアンカー6が外側方に突出して設けられている。前記立上がり部3aは、側壁2c上側部にボルト4とナット5を用いて止着するのに代えて溶接にて取着してもよい。 A side wall 2c projecting opposite to the side wall 2b on the opposite side of the side wall 2b is taller than the side wall 2b, and has a flange-shaped rising portion 3a and a vertical portion 3b formed to protrude upward and downward at both ends. A plurality of locations along the longitudinal direction of the side wall with bolts 4 and nuts 5 with the rising portion 3a of the provided horizontal support fitting 3c being applied to the inner side surface of the upper portion of the side wall 2c and the upper end of the rising portion being aligned with the upper end of the side wall It is fixed at an appropriate interval. A central portion is provided outside the side wall 2c, and anchors 6 are provided on both sides thereof so as to protrude outward. The rising portion 3a may be attached by welding instead of being fixed to the upper portion of the side wall 2c by using the bolt 4 and the nut 5.
前記支持金具3cと共に排水枠2のカバー3を構成するカバー本体3dが図3に示すように、断面倒L形をなして前記支柱2d上に載置され、側壁2b側の一端より下向きに突出形成される垂直部3eには、前記受材2fに上方より嵌合する凹部3fを有し、該凹部3fに受材2fを嵌合させた状態で垂直部3eの下端が底壁2aに着床できるようにしてある。 As shown in FIG. 3, a cover main body 3d that constitutes the cover 3 of the drainage frame 2 together with the support fitting 3c is placed on the support column 2d in an inverted L shape and protrudes downward from one end on the side wall 2b side. The formed vertical portion 3e has a recess 3f that is fitted to the receiving material 2f from above, and the lower end of the vertical portion 3e is attached to the bottom wall 2a in a state where the receiving material 2f is fitted to the recess 3f. The floor can be used.
以上のように構成されたカバー3は、その一部を構成する支持金具3cが排水枠2の側壁2c上側部にボルト4とナット5にて固着されているが、支柱2d上に載置されるカバー本体3dは凹部3fを受材2fより離脱させながら持上げることにより、容易に取外し可能となっている。 The cover 3 configured as described above has a support fitting 3c constituting a part thereof fixed to the upper side of the side wall 2c of the drainage frame 2 with bolts 4 and nuts 5, but is placed on the support column 2d. The cover main body 3d can be easily removed by lifting the recess 3f away from the receiving material 2f.
前記各支柱2d上に載置され、かつ垂直部3e下端を底壁2aに着床して水平に支持されるカバー本体3dは、側壁2c側の一端が前記支持金具3cの垂直部3bに突き当たった状態となっている(図3)。 The cover body 3d, which is placed on each of the columns 2d and is horizontally supported with the lower end of the vertical portion 3e placed on the bottom wall 2a, has one end on the side of the side wall 2c abutted against the vertical portion 3b of the support fitting 3c. (FIG. 3).
前記カバー本体3dと、支持金具3cの垂直部3bが突き当たる箇所には、通水孔3gがカバー本体3dと、支持金具3cの垂直部3bの両側に双方に直角に跨がるようにして複数か所ずつ形成されている。 At the place where the cover main body 3d and the vertical portion 3b of the support metal fitting 3c abut, a plurality of water passage holes 3g extend across both sides of the cover main body 3d and the vertical portion 3b of the support metal fitting 3c at right angles. Each place is formed.
図1及び図2に示す符号7は支持金具3cに取着される接続金具で、前記排水溝1を道路路肩に、道路長手方向に沿って一直線上に連設したとき、隣接する排水溝1の支持金具3cに係止し、排水溝が段差なく接続できるようにするためのものである。 Reference numeral 7 shown in FIGS. 1 and 2 is a connection fitting to be attached to the support fitting 3c. When the drainage groove 1 is continuously provided in a straight line along the road longitudinal direction on the road shoulder, the adjacent drainage groove 1 is shown. The drainage groove is connected to the support bracket 3c so that the drainage groove can be connected without any step.
本実施形態の排水溝1は以上のように構成され、その施工は次のようにして行われる。
図4及びその要部の拡大図である図5に示すように、コンクリート床版7上の所定位置に排水溝1を位置決めして設置したのち、地覆形成のため図示しない型枠を支持金具3cの垂直部3bの側面より当てて、カバー本体3d上に設置すると共に、コンクリート床版8の側端面に当てて設置する。その後、両型枠内にコンクリートを所定の高さまで打設することにより、支持金具3cの垂直部3bと面一をなして立ち上がる地覆9を形成し、これにより支持金具3cを含む排水溝1の一部を地覆9に埋設された状態にする。図4に示すシーリング材11は地覆形成後、支持金具3cと地覆9との間に充填され、シールする。
The drain groove 1 of this embodiment is comprised as mentioned above, and the construction is performed as follows.
As shown in FIG. 4 and FIG. 5 which is an enlarged view of the main part thereof, after the drainage groove 1 is positioned and installed at a predetermined position on the concrete floor slab 7, a mold (not shown) is used to form a ground cover. It is applied from the side surface of the vertical portion 3b of 3c and installed on the cover main body 3d, and is applied to the side end surface of the concrete floor slab 8. Thereafter, concrete is placed in both molds to a predetermined height to form a ground cover 9 that rises flush with the vertical portion 3b of the support fitting 3c, whereby the drainage groove 1 including the support fitting 3c. Is partially embedded in the ground cover 9. The sealing material 11 shown in FIG. 4 is filled and sealed between the support fitting 3c and the ground cover 9 after the ground cover is formed.
前記地覆8の形成に前後してコンクリート床版8上には側壁2bに至るまでアスファルトが装填され、舗装層12が形成される。この舗装層12の表面は、側壁2bに向かって緩やかに傾斜する勾配を有し、側壁上端と面一をなして路面上に降り注いだ雨水が排水溝1上に達し、前記通水孔3gを通って排水枠2内に流入し、排水されるようにしてある。 Before and after the formation of the ground cover 8, asphalt is loaded on the concrete slab 8 up to the side wall 2b to form a pavement layer 12. The surface of the pavement layer 12 has a slope that gently slopes toward the side wall 2b, and rainwater that has poured onto the road surface flush with the upper end of the side wall reaches the drain groove 1, It passes through the drainage frame 2 and drains.
長期間の経過により、前記シーリング材11が脱落するか、脱落しないまでもシーリング材11とコンクリート製地覆9との間より雨水の侵入があった場合、図5の矢印方向に侵入した雨水は支持金具3cの立上がり部3aで遮られ、それ以上地覆内に奥深く浸水することはない。しがたってこの実施形態では、立上がり部3aが遮水部となる。 If the sealing material 11 falls off over a long period of time, or if rainwater enters from between the sealing material 11 and the concrete ground cover 9 until it does not fall off, the rainwater that has entered in the direction of the arrow in FIG. It is blocked by the rising portion 3a of the support fitting 3c, and no further water is immersed in the ground cover. Therefore, in this embodiment, the rising part 3a becomes a water shielding part.
側壁2eに添設の立上がり部3aはまた、遮水部3aとしての機能ばかりでなく、地覆中においてアンカー6と共にアンカー機能をも果たすようになり、立上がり部3aの立ち上がり高さを十分に取り、該立上がり部のみでアンカー機能を十分に果たすことができれば、アンカー6は省くことができる。 The rising portion 3a attached to the side wall 2e not only functions as a water-blocking portion 3a but also functions as an anchor together with the anchor 6 in the ground, so that the rising height of the rising portion 3a is sufficiently secured. If the anchor function can be sufficiently achieved only by the rising portion, the anchor 6 can be omitted.
図6は、立上がり部3a寄りの支持金具端部に流出孔14を設けた実施形態を示すもので、支持金具上に侵入した雨水が支持金具上で溜まることなく流出孔14より排水枠2内に排出されるようになっている。 FIG. 6 shows an embodiment in which the outflow hole 14 is provided at the end of the support fitting close to the rising portion 3a. Rainwater that has entered the support fitting does not collect on the support fitting, and the inside of the drainage frame 2 passes through the outflow hole 14. It is supposed to be discharged.
前記実施形態の支持金具3cは垂直部3bを備えているが、図5及び図6に示される実施形態に対応する図7に示す実施形態においては、支持金具3cは垂直部3bを有していない。これによりカバー本体3dと段差を有する支持金具3cはカバー本体3dとの間に横向きの通水穴16が形成され、カバー本体3d上に流入した雨水が通水穴16を通ってスムースに排水枠2に排水されるようになっている。 In the embodiment shown in FIG. 7 corresponding to the embodiment shown in FIGS. 5 and 6, the support fitting 3c has the vertical portion 3b. Absent. As a result, the support metal fitting 3c having a level difference with the cover main body 3d is formed with a lateral water passage hole 16 between the cover main body 3d, and the rainwater flowing into the cover main body 3d passes through the water flow hole 16 and smoothly drains the drainage frame. 2 is drained.
図7に示す実施形態においては、ボルト17が前記ボルト4より長く形成され、これと共に側壁2cに添設の支持金具3cの立上がり部3gが前記立上がり部3aより高く形成することにより、両者で十分なアンカー効果をもたらすため、前記実施形態のアンカー6を省いている。 In the embodiment shown in FIG. 7, the bolt 17 is formed longer than the bolt 4, and the rising portion 3g of the support fitting 3c attached to the side wall 2c is formed higher than the rising portion 3a. In order to provide a stable anchor effect, the anchor 6 of the above embodiment is omitted.
前記実施形態では立上がり部3aを遮水部としているが、支持金具3cの任意の箇所に上向きに突出する遮水部を設けてもよいが、支持金具3cを側壁2cに固定するためにはフランジ状の立上がり部3aが必要で、立上がり部3a以外に遮水部を設けるのは構造が複雑になる嫌いがある。いずれにしても遮水部は垂直に立ち上がるものに限定されるものではなく、斜め上向きに突出するものであってもよく、また厚みも一定でなくてもよい。 In the above-described embodiment, the rising portion 3a is a water shielding portion. However, a water shielding portion that protrudes upward may be provided at an arbitrary position of the support fitting 3c, but a flange is used to fix the support fitting 3c to the side wall 2c. The shape of the raised portion 3a is necessary, and it is not preferable to provide a water shielding portion other than the raised portion 3a because the structure is complicated. In any case, the water-impervious portion is not limited to the one that rises vertically, and may protrude obliquely upward, and the thickness may not be constant.
前記実施形態はまた、排水溝1の一部を地覆9に埋設した例を示すものであるが、図8及び図9に示す実施形態は、排水溝1の一部をコンクリート製の壁高欄18を埋設した例を示すものである。 The above embodiment also shows an example in which a part of the drainage groove 1 is embedded in the ground cover 9, but the embodiment shown in FIGS. An example in which 18 is embedded is shown.
図8は図5に示すような垂直部3bを備えた支持金具3cを有する排水溝1を用いて壁高欄18を施工した例、図9は図6に示すように、流出孔14を形成した支持金具3cを有する排水溝1を用いて壁高欄18を施工した例、図10は図8に示す支持金具3cと同じ支持金具を用いた排水溝の壁高欄18への施工例、図11は図7に示す支持金具3cを用いた壁高欄18への施工例をそれぞれ示すもので、前記実施形態と同一符号を付した部分は同一構造となっている。 FIG. 8 shows an example in which a wall rail 18 is constructed using a drainage groove 1 having a support fitting 3c having a vertical portion 3b as shown in FIG. 5, and FIG. 9 shows an outflow hole 14 formed as shown in FIG. An example in which the wall rail 18 is constructed using the drainage groove 1 having the support fitting 3c, FIG. 10 is a construction example of the drainage groove on the wall elevation 18 using the same support fitting as the support fitting 3c shown in FIG. FIG. 7 shows an example of construction on the wall height column 18 using the support fitting 3c shown in FIG. 7, and portions denoted by the same reference numerals as those in the embodiment have the same structure.
1・・排水溝
2・・排水枠
2b、2c・・側壁
2d・・支柱
3・・カバー
3a・・立上がり部
3c・・支持金具
3d・・カバー本体
3g・・通水孔
6・・アンカー
8・・コンクリート床版
9・・地覆
11・・シーリング材
12・・舗装層
14・・流出孔
16・・通水孔
18・・壁高欄
1. Drain groove 2. Drainage frame 2b, 2c, side wall 2d, support 3, cover 3a, rising part 3c, support bracket 3d, cover body 3g, water hole 6, anchor 8・ ・ Concrete floor slab 9 ・ Ground cover 11 ・ Sealing material 12 ・ Pavement layer 14 ・ Outflow hole 16 ・ Water flow hole 18 ・ Wall railing
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2020190091A (en) * | 2019-05-21 | 2020-11-26 | 協立エンジ株式会社 | Drainage ditch forming members and road bridge drainage ditch replacement and repair method |
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JP2020190091A (en) * | 2019-05-21 | 2020-11-26 | 協立エンジ株式会社 | Drainage ditch forming members and road bridge drainage ditch replacement and repair method |
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JP6913328B1 (en) * | 2020-12-08 | 2021-08-04 | 中川ヒューム管工業株式会社 | How to build a drainage gutter for a bridge deck |
JP2022091013A (en) * | 2020-12-08 | 2022-06-20 | 中川ヒューム管工業株式会社 | Construction method of bridge slab side drain |
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CN114561851B (en) * | 2022-02-24 | 2023-08-22 | 广东金衡建筑工程有限公司 | Municipal road drainage system |
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