JP2021193261A - Buried cover and side-gutter using the same - Google Patents

Buried cover and side-gutter using the same Download PDF

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JP2021193261A
JP2021193261A JP2020099845A JP2020099845A JP2021193261A JP 2021193261 A JP2021193261 A JP 2021193261A JP 2020099845 A JP2020099845 A JP 2020099845A JP 2020099845 A JP2020099845 A JP 2020099845A JP 2021193261 A JP2021193261 A JP 2021193261A
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gutter
lid
concrete
buried
pair
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JP7062309B2 (en
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博 西
Hiroshi Nishi
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MC SANGYO KK
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Abstract

To provide a buried cover and a side-gutter using the same, wherein the buried cover does not require scraping of a cover receiving step part of a side-gutter body and is easy to construct.SOLUTION: A buried cover 3 used for a side-gutter body 2 in which a cover receiving step part 22 is formed on the upper part of both side walls 21 constituting a flowing water gutter 20 comprises: a pair of angle steels 30 consisting of angle steels 30 each arranged along the cover receiving step part 22 of both side walls 21 of the side-gutter body 2, in which an inner surface side of each angle steel 30 is arranged toward an upper surface 22A of the cover receiving step part 22 and the inner surface of the flowing water gutter 20 of the side-gutter body 2; a longitudinal bar 31 that is erected on the pair of the angle steels 30; and a concrete part 33 that consists of a concrete upper step part 33A that is formed on the longitudinal bar 31 and the pair of the angle steels 30 and is arranged on the cover receiving step part 22, and a concrete lower step part 33B that is formed integrally with the concrete upper step part 33A between the pair of the angle steels 30 and is arranged in the flowing water gutter 20 of the side-gutter body 2.SELECTED DRAWING: Figure 1

Description

本発明は、落蓋式側溝に用いられる埋設蓋およびこれを用いた側溝に関する。 The present invention relates to an embedded lid used for a drop-type gutter and a gutter using the same.

落蓋式側溝は、標準的な側溝として全国的に広く使われている。しかしながら、側溝に付帯する蓋が、バリアフリーなどの視点から社会問題化してきている。そこで、既設側溝の改造工法として、現場打ちコンクリートによる工法やスチール透水蓋工法（例えば、特許文献１，２参照。）などが考案され、普及しつつある。しかし、現場打ちコンクリートによる工法は、経済性に優れるが、工期が長いという問題がある。また、スチール透水蓋工法は、工期は短いが、経済性に劣るなどの問題がある。 Dropped gutters are widely used nationwide as standard gutters. However, the lid attached to the gutter has become a social problem from the viewpoint of barrier-free. Therefore, as a method for remodeling an existing gutter, a method using cast-in-place concrete or a steel permeable lid method (see, for example, Patent Documents 1 and 2) has been devised and is becoming widespread. However, although the construction method using cast-in-place concrete is excellent in economy, there is a problem that the construction period is long. In addition, the steel permeable lid method has a short construction period, but has problems such as inferior economic efficiency.

また、既存の落蓋式側溝に対して埋設蓋を設置し、透水性舗装表層を形成する工法も考案され、実用化されている（例えば、特許文献３参照。）。この種の埋設蓋は、主にＦＲＣ（繊維強化コンクリート）製や高強度コンクリート製である。横幅３００ｍｍの車道用の埋設蓋の場合、その厚さはＦＲＣ製で６０ｍｍ（大型車乗入れの場合８０ｍｍ）、高強度コンクリート製で８０ｍｍである。 Further, a method of installing a buried lid in an existing drop-type gutter to form a water-permeable pavement surface layer has also been devised and put into practical use (see, for example, Patent Document 3). This type of buried lid is mainly made of FRC (fiber reinforced concrete) or high-strength concrete. In the case of a buried lid for a roadway having a width of 300 mm, the thickness is 60 mm for FRC (80 mm for a large vehicle) and 80 mm for high-strength concrete.

特許第３８９２４３６号公報Japanese Patent No. 3892436 特開２０１１−８０２８６号公報Japanese Unexamined Patent Publication No. 2011-80286 特許第５０１０７７０号公報Japanese Patent No. 501770

図１１に示すように既存の落蓋式側溝１００の場合、蓋受け段部１０１上に載置される溝幅３００ｍｍの側溝蓋１０２の厚さは、標準的に１００ｍｍである。したがって、前述のようなＦＲＣ製や高強度コンクリート製の埋設蓋を利用した場合、車道の舗装厚さ５０ｍｍを確保することができない。そのため、図１２に示すように、落蓋式側溝１００の蓋受け段部１０１を削り取り、埋設蓋１０３の上に所定の舗装１０４の厚さを確保する施工方法を標準としている。しかしながら、この削り取った面１０１Ａを埋設蓋１０３がガタつかないように平滑に仕上げることは困難な作業である。 As shown in FIG. 11, in the case of the existing drop-type gutter 100, the thickness of the gutter lid 102 having a groove width of 300 mm placed on the lid receiving step 101 is standardly 100 mm. Therefore, when a buried lid made of FRC or high-strength concrete as described above is used, it is not possible to secure a pavement thickness of 50 mm on the roadway. Therefore, as shown in FIG. 12, a construction method is standardized in which the lid receiving step portion 101 of the drop-off type gutter 100 is scraped off to secure a predetermined thickness of the pavement 104 on the buried lid 103. However, it is a difficult task to finish the scraped surface 101A smoothly so that the embedded lid 103 does not rattle.

そこで、本発明においては、側溝本体の蓋受け段部の削り取りが不要であり、施工が簡単な埋設蓋およびこれを用いた側溝を提供することを目的とする。 Therefore, in the present invention, it is an object of the present invention to provide an embedded lid which does not require scraping of the lid receiving step portion of the gutter main body and is easy to construct, and a gutter using the buried lid.

本発明の埋設蓋は、流水溝を構成する両側壁の上部に蓋受け段部が形成された側溝本体に用いられる埋設蓋であって、側溝本体の両側壁の蓋受け段部に沿ってそれぞれ配置される山形鋼からなり、それぞれの山形鋼の内面側が蓋受け段部の上面および側溝本体の流水溝内面に向けて配置される一対の山形鋼と、一対の山形鋼上に架設される主筋と、主筋および一対の山形鋼上に形成され、蓋受け段部上に配置されるコンクリート上段部と、一対の山形鋼間にコンクリート上段部と一体に形成され、側溝本体の流水溝内に配置されるコンクリート下段部とから構成されるコンクリート部とを含むものである。 The embedded lid of the present invention is an embedded lid used for a side groove main body in which a lid receiving step portion is formed on the upper portions of both side walls constituting the water flow groove, and is a lid receiving step portion of both side walls of the side groove main body. It consists of a pair of angle steels to be arranged, and a pair of angle steels whose inner surface side is arranged toward the upper surface of the lid receiving step and the inner surface of the flowing water groove of the side groove body, and a main bar erected on the pair of angle steels. And, it is formed on the main bar and a pair of angle steels and is integrally formed with the concrete upper part between the pair of angle steels and the concrete upper part which is arranged on the lid receiving stage part, and is arranged in the running water groove of the side groove body. It includes a concrete portion composed of a lower concrete portion to be formed.

本発明の埋設蓋は、側溝本体の蓋受け段部上に配置され、この蓋受け段部上に載置された埋設蓋上にアスファルト舗装が形成される。本発明の埋設蓋は、側溝本体の蓋受け段部の上面および側溝本体の流水溝内面に向けて山形鋼からなる一対の山形鋼が配置され、この一対の山形鋼上に主筋が架設されたものであり、主筋が架設された一対の山形鋼により鉄筋被りを補うとともに配力筋としての役割を担わせるため、コンクリート上段部は必要なアスファルト舗装厚を確保できる厚さまで薄くすることができる。一対の山形鋼は、さらにせん断応力を補う役割を果たす。また、コンクリート上段部と一体に形成されるコンクリート下段部は、側溝本体の流水溝内に配置されることから、厚さの制限がないため、鉄筋被りを満足し、かつ構造計算に基づいた厚さとすることができる。 The buried lid of the present invention is arranged on the lid receiving step portion of the gutter main body, and asphalt pavement is formed on the buried lid placed on the lid receiving step portion. In the embedded lid of the present invention, a pair of angle steels made of angle steel are arranged toward the upper surface of the lid receiving step portion of the side groove body and the inner surface of the flowing water groove of the side groove body, and the main bar is erected on the pair of angle steels. The upper part of the concrete can be thinned to a thickness that can secure the required asphalt pavement thickness, because the pair of angle steels on which the main bars are erected supplement the reinforcing bar cover and also serve as a force distribution bar. The pair of angle steels further serve to supplement the shear stress. In addition, since the concrete lower part, which is integrally formed with the concrete upper part, is arranged in the flowing water groove of the gutter body, there is no limitation on the thickness, so that the reinforcing bar covering is satisfied and the thickness is based on the structural calculation. Can be.

なお、埋設蓋上に形成するアスファルト舗装が通水性の場合、埋設蓋は、コンクリート部の一対の山形鋼の延びる方向の側面に突起部を有する構成とすることが望ましい。これにより、埋設蓋を側溝本体の蓋受け段部上に並べて配置するだけで、隣接する埋設蓋の間に突起部に応じた隙間が形成され、通水性アスファルト舗装を通過した水の通水路を確保することができる。 When the asphalt pavement formed on the buried lid is water-permeable, it is desirable that the buried lid has a protrusion on the side surface of the pair of angle steels of the concrete portion in the extending direction. As a result, by simply arranging the buried lids side by side on the lid receiving step of the gutter main body, a gap corresponding to the protrusion is formed between the adjacent buried lids, and the water passage through the water-permeable asphalt pavement is formed. Can be secured.

また、本発明の埋設蓋は、コンクリート上段部の上面からコンクリート下段部の下面まで形成された切欠部と、切欠部上に配置され、側溝本体の上面から切欠部までの導水路を形成するアタッチメントとを含むことが望ましい。これにより、側溝本体の蓋受け段部上に載置した埋設蓋上にアスファルト舗装を形成した側溝において、切欠部上にアタッチメントを配置するだけで、側溝本体の上面、すなわちアスファルト舗装上から側溝本体の流水溝までの導水路を確保することができる。 Further, the embedded lid of the present invention has a notch formed from the upper surface of the upper part of the concrete to the lower surface of the lower part of the concrete, and an attachment arranged on the notch and forming a headrace from the upper surface of the gutter body to the notch. And should be included. As a result, in the gutter in which the asphalt pavement is formed on the buried lid placed on the lid receiving step of the gutter body, only by arranging the attachment on the notch, the upper surface of the gutter body, that is, the gutter body from the asphalt pavement. It is possible to secure a headrace to the water flow ditch.

（１）本発明によれば、主筋が架設された一対の山形鋼により鉄筋被りを補うとともに配力筋としての役割を担わせるため、コンクリート上段部は必要なアスファルト舗装厚を確保できる厚さまで薄くすることができるため、従来工法のような側溝本体の蓋受け段部の削り取りが不要となり、施工が簡単である。 (1) According to the present invention, in order to supplement the reinforcing bar cover with a pair of angle steels on which the main bars are erected and to play a role as a force distribution bar, the concrete upper part is thinned to a thickness that can secure the required asphalt pavement thickness. Therefore, it is not necessary to scrape off the lid receiving step of the gutter main body as in the conventional method, and the construction is easy.

（２）埋設蓋上に形成するアスファルト舗装が通水性の場合、埋設蓋は、コンクリート部の一対の山形鋼の延びる方向の側面に突起部を有する構成とすることにより、埋設蓋を側溝本体の蓋受け段部上に並べて配置するだけで、隣接する埋設蓋の間に通水性アスファルト舗装を通過した水の通水路を簡単に確保することができる。 (2) When the asphalt pavement formed on the buried lid is water-permeable, the buried lid is configured to have protrusions on the side surfaces of the pair of angle steels of the concrete portion in the extending direction, so that the buried lid can be attached to the side groove main body. By simply arranging them side by side on the lid receiving step, it is possible to easily secure a water passage through the water-permeable asphalt pavement between adjacent buried lids.

（３）コンクリート上段部の上面からコンクリート下段部の下面まで形成された切欠部と、切欠部上に配置され、側溝本体の上面から切欠部までの導水路を形成するアタッチメントとを含む構成により、切欠部上にアタッチメントを配置するだけで、すなわちアスファルト舗装上から側溝本体の流水溝までの導水路を簡単に確保することができる。 (3) With a configuration including a notch formed from the upper surface of the upper part of the concrete to the lower surface of the lower part of the concrete, and an attachment arranged on the notch and forming a headrace from the upper surface of the gutter body to the notch. By simply arranging the attachment on the notch, that is, it is possible to easily secure a headrace from the asphalt pavement to the water flow groove of the gutter body.

本発明の実施の形態における側溝の断面図である。It is sectional drawing of the side groove in embodiment of this invention. 図１の側溝の平面図である。It is a top view of the gutter of FIG. 図２のＡ矢視図である。It is the A arrow view of FIG. 図１の埋設蓋の平面図である。It is a top view of the buried lid of FIG. 図１の埋設蓋の正面図である。It is a front view of the buried lid of FIG. 図１の埋設蓋の左側面図である。It is a left side view of the buried lid of FIG. 図１の埋設蓋の右側面図である。It is a right side view of the buried lid of FIG. 図１の導水路用アタッチメントの平面図である。It is a top view of the attachment for a headrace of FIG. 図１の導水路用アタッチメントの正面図である。It is a front view of the attachment for a headrace of FIG. 図１の導水路用アタッチメントの右側面図である。It is a right side view of the attachment for a headrace of FIG. 既存の落蓋式側溝の断面図である。It is sectional drawing of the existing lid type gutter. 既存の落蓋式側溝の蓋受け段部を削り取り、埋設蓋を施工した側溝の断面図である。It is sectional drawing of the side groove in which the lid receiving step part of the existing drop-type side groove was scraped off, and the buried lid was constructed.

図１は本発明の実施の形態における側溝の断面図、図２は図１の側溝の平面図、図３は図２のＡ矢視図、図４は図１の埋設蓋の平面図、図５は正面図、図６は左側面図、図７は右側面図、図８は図１の導水路用アタッチメントの平面図、図９は正面図、図１０は右側面図である。 1 is a cross-sectional view of a gutter according to an embodiment of the present invention, FIG. 2 is a plan view of the gutter of FIG. 1, FIG. 3 is a view taken along the line A of FIG. 2, and FIG. 5 is a front view, FIG. 6 is a left side view, FIG. 7 is a right side view, FIG. 8 is a plan view of the headrace attachment of FIG. 1, FIG. 9 is a front view, and FIG. 10 is a right side view.

図１および図２に示すように、本発明の実施の形態における側溝１は、側溝本体２と、埋設蓋３とから構成される。側溝本体２は、流水溝２０を構成する両側壁２１の上部に蓋受け段部２２が形成されたものである。側溝本体２は、コンクリート二次製品を用いることができる。埋設蓋３は、工場において製造されるプレキャスト鉄筋コンクリート製品である。埋設蓋３は、両側壁２１の蓋受け段部２２上に、側溝本体２の延設方向Ｙ（図２参照。図１に現れる面に対して直交方向。）に並べて載置される。埋設蓋３上には、アスファルト舗装４が形成される。なお、図２においてはアスファルト舗装４を省略している。 As shown in FIGS. 1 and 2, the gutter 1 in the embodiment of the present invention is composed of a gutter main body 2 and an embedded lid 3. The gutter main body 2 has a lid receiving step portion 22 formed on an upper portion of both side walls 21 constituting the running water groove 20. As the gutter main body 2, a secondary concrete product can be used. The buried lid 3 is a precast reinforced concrete product manufactured in a factory. The buried lid 3 is placed side by side on the lid receiving step portion 22 of both side walls 21 in the extending direction Y of the gutter main body 2 (see FIG. 2; orthogonal to the surface appearing in FIG. 1). An asphalt pavement 4 is formed on the buried lid 3. In FIG. 2, the asphalt pavement 4 is omitted.

埋設蓋３は、側溝本体２の延設方向Ｙに延びる一対の山形鋼３０と、一対の山形鋼３０上に架設される主筋３１とを有する。一対の山形鋼３０は、側溝本体２の両側壁２１の蓋受け段部２２に沿ってそれぞれ配置される。一対の山形鋼３０は、その内面３０Ａ側が蓋受け段部２２の上面２２Ａおよび側溝本体２の流水溝２０の内面２０Ａに向けて配置される。なお、本実施形態においては、山形鋼３０として等辺山形鋼（アングル鋼）を使用しているが、不等辺山形鋼を使用することも可能である。要するに、山形の内面の一方が蓋受け段部２２の上面に対面し、他方が流水溝２０の内面２０Ａに対面するように配置できれば良い。 The embedded lid 3 has a pair of angle steels 30 extending in the extending direction Y of the gutter main body 2 and a main bar 31 erected on the pair of angle steels 30. The pair of angle steels 30 are arranged along the lid receiving step portion 22 of both side walls 21 of the gutter main body 2. The pair of angle steels 30 are arranged so that the inner surface 30A side thereof faces the upper surface 22A of the lid receiving step portion 22 and the inner surface 20A of the flowing water groove 20 of the gutter main body 2. In this embodiment, equilateral angle steel is used as the angle steel 30, but unequal angle angle steel can also be used. In short, it suffices if one of the inner surfaces of the chevron can be arranged so as to face the upper surface of the lid receiving step portion 22 and the other to face the inner surface 20A of the water flow groove 20.

主筋３１は側溝本体２の延設方向Ｙに対して直交する方向Ｘに延びる異形棒鋼である。主筋３１は、側溝本体２の延設方向Ｙに等間隔で複数配設される。主筋３１は一対の山形鋼３０のそれぞれの上面に溶接されている。また、主筋３１上には、側溝本体２の延設方向Ｙに延びる配力筋３２が複数配設される。配力筋３２は異形棒鋼である。配力筋３２は主筋３１に溶接されている。このように溶接により一体化された山形鋼３０、主筋３１および配力筋３２は溶融亜鉛メッキ仕上げされる。 The main bar 31 is a deformed steel bar extending in a direction X orthogonal to the extending direction Y of the gutter main body 2. A plurality of main bars 31 are arranged at equal intervals in the extending direction Y of the gutter main body 2. The main bar 31 is welded to the upper surface of each of the pair of angle steels 30. Further, a plurality of force distribution bars 32 extending in the extending direction Y of the gutter main body 2 are arranged on the main bar 31. The force distribution bar 32 is a deformed steel bar. The force distribution bar 32 is welded to the main bar 31. The angle steel 30, main bar 31, and force distribution bar 32 integrated by welding in this way are hot-dip galvanized.

埋設蓋３は、上記構成の山形鋼３０、主筋３１および配力筋３２の上下にコンクリートを打設することによりコンクリート部３３が形成されたものである。コンクリート部３３は、蓋受け段部２２上に配置されるコンクリート上段部３３Ａと、側溝本体２の流水溝２０内に配置されるコンクリート下段部３３Ｂとから構成される。コンクリート上段部３３Ａは、主筋３１および一対の山形鋼３０上に形成される。コンクリート下段部３３Ｂは、一対の山形鋼３０間にコンクリート上段部３３Ａと一体に形成される。 The buried lid 3 has a concrete portion 33 formed by placing concrete above and below the angle steel 30, the main bar 31, and the force distribution bar 32 having the above configuration. The concrete portion 33 is composed of a concrete upper step portion 33A arranged on the lid receiving step portion 22 and a concrete lower step portion 33B arranged in the running water groove 20 of the gutter main body 2. The concrete upper stage portion 33A is formed on the main bar 31 and the pair of angle steels 30. The concrete lower stage portion 33B is integrally formed with the concrete upper stage portion 33A between the pair of angle steels 30.

上記構成の埋設蓋３は、図１および図２に示すように側溝本体２の蓋受け段部２２上に配置され、この蓋受け段部２２上に載置された埋設蓋３上にアスファルト舗装４が形成される。溝幅３００ｍｍの側溝本体２の場合、蓋受け段部２２の上面２２Ａから側溝本体２の上面２Ａまでの高さＴは１００ｍｍであり、アスファルト舗装４の必要な厚さ（本実施形態においてはｔ＝５０ｍｍ）を確保するため、埋設蓋３のコンクリート上段部３３Ａの厚さ（本実施形態においてはｔ１＝５０ｍｍ）とする。また、コンクリート下段部３３Ｂは、側溝本体２の流水路２０内に配置されることから、厚さの制限がないため、鉄筋被りを満足し、かつ構造計算に基づいた厚さ（本実施形態においてはｔ２＝３０ｍｍ）とすることができる。 As shown in FIGS. 1 and 2, the buried lid 3 having the above configuration is arranged on the lid receiving step portion 22 of the gutter main body 2, and asphalt pavement is placed on the buried lid 3 placed on the lid receiving step portion 22. 4 is formed. In the case of the gutter main body 2 having a groove width of 300 mm, the height T from the upper surface 22A of the lid receiving step 22 to the upper surface 2A of the gutter main body 2 is 100 mm, and the required thickness of the asphalt pavement 4 (t in this embodiment). = 50 mm), the thickness of the concrete upper stage 33A of the buried lid 3 is set to t1 = 50 mm in this embodiment. Further, since the concrete lower stage portion 33B is arranged in the water passage 20 of the gutter main body 2, there is no limitation on the thickness, so that the reinforcing bar covering is satisfied and the thickness is based on the structural calculation (in the present embodiment). Can be t2 = 30 mm).

このように、本実施形態における埋設蓋３では、主筋３１が架設された一対の山形鋼３０により鉄筋被りを補うとともに配力筋としての役割を担わせるため、コンクリート上段部３３Ａはアスファルト舗装４の必要な厚さを確保できる厚さまで薄くすることができるため、従来工法のような側溝本体の蓋受け段部の削り取りが不要となり、施工が簡単である。 As described above, in the buried lid 3 in the present embodiment, the concrete upper stage portion 33A is the asphalt pavement 4 in order to supplement the reinforcing bar cover with the pair of angle steel 30 on which the main bar 31 is erected and to play a role as a force distribution bar. Since it can be thinned to a thickness that can secure the required thickness, it is not necessary to scrape off the lid receiving step of the gutter body as in the conventional method, and the construction is easy.

なお、アスファルト舗装４としては、密粒度アスコン（密粒度アスファルトコンクリート）や通水性アスコン（通水性アスファルトコンクリート）などを使用することができる。 As the asphalt pavement 4, fine-grained asphalt (fine-grained asphalt concrete), water-permeable asphalt (water-permeable asphalt concrete), and the like can be used.

通水性アスコンを使用する場合、埋設蓋３は、コンクリート部３３の一対の山形鋼の延びる方向、すなわち埋設蓋３が並べて配設される側溝本体２の延設方向Ｙの側面に突起部３４を有する構成とする。この突起部３４の高さは、密粒度アスコンが通過できない高さ（本実施形態においては３ｍｍ程度）とする。これにより、埋設蓋３を側溝本体２の蓋受け段部２２上に並べて配置するだけで、隣接する埋設蓋３の間に突起部３４に応じた隙間が形成され、通水性アスコンなどの通水性アスファルト舗装を通過した水の通水路を簡単に確保することができる。 When a water-permeable ascon is used, the buried lid 3 has a protrusion 34 on the side surface in the extending direction of the pair of angle steels of the concrete portion 33, that is, the extending direction Y of the gutter main body 2 in which the buried lids 3 are arranged side by side. It has a configuration. The height of the protrusion 34 is such that the fine particle size ascon cannot pass through (about 3 mm in the present embodiment). As a result, simply by arranging the buried lid 3 side by side on the lid receiving step portion 22 of the gutter main body 2, a gap corresponding to the protrusion 34 is formed between the adjacent buried lids 3, and water permeability such as water-permeable ascon is formed. It is possible to easily secure a water passage through the asphalt pavement.

また、密粒度アスコンを使用する場合、図４に示すようにコンクリート部３３を一部切り欠いた形状として、埋設蓋３が、コンクリート上段部３３Ａの上面からコンクリート下段部３３Ｂの下面まで形成された切欠部３５を有する構成とする。また、この切欠部３５には、図８〜図１０に示すアタッチメント５を配置する。アタッチメント５は、側溝本体２の上面２Ａから切欠部３５までの導水路を形成するものである。 Further, when a dense-grained ascon is used, the embedded lid 3 is formed from the upper surface of the concrete upper stage 33A to the lower surface of the concrete lower stage 33B in a shape in which the concrete portion 33 is partially cut out as shown in FIG. It is configured to have a notch 35. Further, the attachment 5 shown in FIGS. 8 to 10 is arranged in the notch 35. The attachment 5 forms a headrace from the upper surface 2A of the gutter body 2 to the notch 35.

アタッチメント５は、側溝本体２の側壁２１の内面に向けて内側面を当接させることにより側壁２１との間に導水路を形成する導水路形成部５０と、導水路形成部５０と、導水路形成部５０の外側において切欠部３５上を覆うキャップ５１とを含む。本実施形態においては、導水路形成部５０は等辺山形鋼（アングル鋼）であり、キャップ５１は平鋼である。また、導水路形成部５０とキャップ５１とは、平鋼からなるベース部５２上に溶接され、一体化されている。アタッチメント５は溶融亜鉛メッキ仕上げされる。 The attachment 5 has a headrace forming portion 50, a headrace forming portion 50, and a headrace canal that form a headrace with the side wall 21 by abutting the inner side surface toward the inner surface of the side wall 21 of the gutter main body 2. It includes a cap 51 that covers the notch 35 on the outside of the forming portion 50. In the present embodiment, the headrace forming portion 50 is equilateral angle steel (angle steel), and the cap 51 is flat steel. Further, the headrace forming portion 50 and the cap 51 are welded and integrated on the base portion 52 made of flat steel. The attachment 5 is hot-dip galvanized.

これにより、側溝本体２の蓋受け段部２２上に載置した埋設蓋３上にアスファルト舗装４を形成した側溝において、切欠部３５上にアタッチメント５を配置するだけで、側溝本体２の上面２Ａ、すなわちアスファルト舗装４上から側溝本体２の流水溝２０までの導水路を容易に簡単に確保することができる。なお、導水路が不要の場合には、埋設蓋３の切欠部３５は形成しなくて良い。 As a result, in the gutter in which the asphalt pavement 4 is formed on the buried lid 3 placed on the lid receiving step portion 22 of the gutter main body 2, the upper surface 2A of the gutter main body 2 is simply arranged on the notch 35. That is, it is possible to easily and easily secure a headrace from the asphalt pavement 4 to the flowing water groove 20 of the gutter main body 2. If the headrace is not required, the notch 35 of the buried lid 3 does not have to be formed.

また、上記構成のアタッチメント５は、等辺山形鋼と平鋼との組み合わせにより形成されているため、製造が簡単であり、低コストである。また、埋設蓋３上に形成するアスファルト舗装４はアタッチメント５の等辺山形鋼の外側の２面に接するため、丸パイプや角パイプにより導水路を形成する場合に比べて施工が簡単である。なお、導水路形成部５０として等辺山形鋼以外を使用することも可能である。 Further, since the attachment 5 having the above configuration is formed by a combination of equilateral angle steel and flat steel, it is easy to manufacture and low in cost. Further, since the asphalt pavement 4 formed on the buried lid 3 is in contact with the outer two surfaces of the equilateral angle steel of the attachment 5, the construction is easier than the case where the headrace is formed by a round pipe or a square pipe. It is also possible to use other than equilateral angle steel as the headrace forming portion 50.

本発明は、標準的な側溝として全国的に広く使われている落蓋式側溝に用いられる埋設蓋およびこれを用いた側溝として有用であり、特に、側溝本体の蓋受け段部の削り取りが不要であり、施工が簡単な埋設蓋およびこれを用いた側溝として好適である。 The present invention is useful as a buried lid used for a drop-type gutter that is widely used nationwide as a standard gutter and a gutter using the gutter, and in particular, it is not necessary to scrape off the lid receiving step portion of the gutter body. Therefore, it is suitable as a buried lid that is easy to construct and a gutter using this.

１ 側溝
２ 側溝本体
３ 埋設蓋
４ アスファルト舗装
５ アタッチメント
２０ 流水溝
２１ 側壁
２２ 蓋受け段部
３０ 山形鋼
３１ 主筋
３２ 配力筋
３３ コンクリート部
３３Ａ コンクリート上段部
３３Ｂ コンクリート下段部
３４ 突起部
３５ 切欠部
５０ 導水路形成部
５１ キャップ
５２ 平鋼 1 gutter 2 gutter body 3 buried lid 4 asphalt pavement 5 attachment 20 running water groove 21 side wall 22 lid receiving step 30 angle steel 31 main bar 32 force distribution bar 33 concrete part 33A concrete upper part 33B concrete lower part 34 protrusion 35 notch Headrace forming part 51 Cap 52 Flat steel

Claims (6)

流水溝を構成する両側壁の上部に蓋受け段部が形成された側溝本体に用いられる埋設蓋であって、
前記側溝本体の両側壁の蓋受け段部に沿ってそれぞれ配置される山形鋼からなり、それぞれの山形鋼の内面側が前記蓋受け段部の上面および前記側溝本体の流水溝内面に向けて配置される一対の山形鋼と、
前記一対の山形鋼上に架設される主筋と、
前記主筋および前記一対の山形鋼上に形成され、前記蓋受け段部上に配置されるコンクリート上段部と、前記一対の山形鋼間に前記コンクリート上段部と一体に形成され、前記側溝本体の流水溝内に配置されるコンクリート下段部とから構成されるコンクリート部と
を含む埋設蓋。 A buried lid used for a gutter body in which a lid receiving step is formed on the upper part of both side walls constituting the flowing water groove.
It is made of angle steel arranged along the lid receiving steps of both side walls of the side groove main body, and the inner surface side of each angle steel is arranged toward the upper surface of the lid receiving step and the inner surface of the flowing water groove of the side groove main body. A pair of angle steel and
The main bar erected on the pair of angle steels and
The concrete upper stage portion formed on the main bar and the pair of angle steels and arranged on the lid receiving step portion and the concrete upper stage portion are integrally formed between the pair of angle steels and the running water of the side groove main body. A buried lid that includes a concrete lower part that is placed in the groove and a concrete part that is composed of the lower concrete part. 前記コンクリート部の前記一対の山形鋼の延びる方向の側面に突起部を有する請求項１記載の埋設蓋。 The buried lid according to claim 1, wherein the concrete portion has protrusions on the side surfaces of the pair of angle steels in the extending direction. 前記コンクリート上段部の上面から前記コンクリート下段部の下面まで形成された切欠部と、
前記切欠部上に配置され、前記側溝本体の上面から前記切欠部までの導水路を形成するアタッチメントと
を含む請求項１または２に記載の埋設蓋。 A notch formed from the upper surface of the concrete upper stage to the lower surface of the concrete lower stage, and
The buried lid according to claim 1 or 2, comprising an attachment disposed on the notch and forming a headrace from the upper surface of the gutter body to the notch. 前記アタッチメントは、前記側溝本体の側壁の内面に向けて内側面を当接させることにより前記側壁との間に前記導水路を形成する導水路形成部と、前記導水路形成部の外側において前記切欠部上を覆うキャップとを含むものである請求項３記載の埋設蓋。 The attachment has a headrace forming portion that forms the headrace between the side wall and the side wall by abutting the inner side surface toward the inner surface of the side wall of the gutter body, and the notch on the outside of the headrace forming portion. The buried lid according to claim 3, which includes a cap that covers the portion. 流水溝を構成する両側壁の上部に蓋受け段部が形成された側溝本体と、
請求項１から４のいずれか１項に記載の埋設蓋と
を含む側溝。 A gutter body with a lid receiving step formed on the upper part of both side walls constituting the water flow groove, and a gutter body.
A gutter including the buried lid according to any one of claims 1 to 4. 前記埋設蓋上に形成されたアスファルト舗装を含む請求項５記載の側溝。 The gutter according to claim 5, which includes an asphalt pavement formed on the buried lid.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1121987A (en) * 1997-07-04 1999-01-26 Sekisui Chem Co Ltd Ditch conver
JP3119258U (en) * 2005-12-06 2006-02-16 山形新興株式会社 Side plate cover plate block
JP2006125185A (en) * 2004-09-28 2006-05-18 Yamagata Shinko Kk Structure of pavement equipped with side ditch and side ditch block
JP3197732U (en) * 2015-03-06 2015-06-04 カワノ工業株式会社 U-shaped concrete gutter lid

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1121987A (en) * 1997-07-04 1999-01-26 Sekisui Chem Co Ltd Ditch conver
JP2006125185A (en) * 2004-09-28 2006-05-18 Yamagata Shinko Kk Structure of pavement equipped with side ditch and side ditch block
JP3119258U (en) * 2005-12-06 2006-02-16 山形新興株式会社 Side plate cover plate block
JP3197732U (en) * 2015-03-06 2015-06-04 カワノ工業株式会社 U-shaped concrete gutter lid

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