JP2021042541A

JP2021042541A - Water channel

Info

Publication number: JP2021042541A
Application number: JP2019163728A
Authority: JP
Inventors: 剛男原田; Takeo Harada; 吉田　幸司; Koji Yoshida; 幸司吉田
Original assignee: Nippon Steel Metal Products Co Ltd
Current assignee: Nippon Steel Metal Products Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2021-03-18

Abstract

To provide a water channel capable of holding a wale material stably.SOLUTION: A water channel 1 comprises: a water channel body 2 that is made of a steel plate and that is formed in an U-shape by a pair of side wall parts 21 and 21 and a bottom part 22; wale materials 3 that are separated from each other in a width direction Y orthogonal to an extending direction X and that are installed in upper ends 21a of the pair of side wall parts 21; and a strut 4 for connecting the wale materials 3 and 3 separated in the width direction Y, with each other. The water channel body 2 is connected with the wale materials 3 so as to move in the extending direction X relative to the wale materials 3.SELECTED DRAWING: Figure 5

Description

本発明は、水路に関する。 The present invention relates to waterways.

従来、灌漑用水路、農業用水路、工業用水路等の水路が知られている。このような水路は、Ｕ字状の鋼板が用いられて、地面に掘られた溝に設置される。水路に関する技術としては、特許文献１〜５の開示技術が提案されている。 Conventionally, waterways such as irrigation canals, agricultural waterways, and industrial waterways are known. Such a channel is installed in a groove dug in the ground using a U-shaped steel plate. As a technique related to a waterway, disclosure techniques of Patent Documents 1 to 5 have been proposed.

特許文献１のコルゲートフリュームは、撥水性塗装を施した横断面が頂部とそれに続く傾斜部からなる形状の切梁を、頂部を上方にしてコルゲートフリューム本体の上縁部に取付けたことを特徴とする。 The corrugated flume of Patent Document 1 is characterized in that a girder having a water-repellent coating and a cross section consisting of a top and an inclined portion following the top is attached to the upper edge of the corrugated flume body with the top facing up. To do.

特許文献２の波付鋼板の設計方法は、波の深さがＨの波形の波付鋼板からなる、両側壁と底部とでＵ字形をなし底部直線部長さｄの波付鋼板フリュームを構成する波形鋼板の波形状を設計する方法である。 The method for designing a corrugated steel sheet in Patent Document 2 constitutes a corrugated steel sheet flume having a corrugated steel sheet having a wave depth of H, having a U shape on both side walls and a bottom, and having a straight bottom length d. This is a method for designing the corrugated shape of a corrugated steel sheet.

特許文献３の角度部用ステンレス水路材の製造方法は、流路方向に波形断面をなす波付けステンレス材からなる複数のステンレス水路材を流路方向に連結して構成するステンレス水路における角度部用のステンレス水路材を製造する方法である。 The method for manufacturing a stainless steel channel material for an angle portion in Patent Document 3 is for an angle portion in a stainless steel channel formed by connecting a plurality of stainless steel channel materials made of corrugated stainless steel having a corrugated cross section in the flow path direction in the flow path direction. This is a method for manufacturing stainless steel channel materials.

特許文献４の波型鋼板製水路部材は、流路方向に沿った断面が波形に形成された波付け鋼材を用いた波型鋼板製水路部材であって、波付け鋼材は、ステンレスである。 The corrugated steel plate water channel member of Patent Document 4 is a corrugated steel plate water channel member using a corrugated steel material having a corrugated cross section along the flow path direction, and the corrugated steel material is stainless steel.

特許文献５の水路は、波付け方向と直交する方向にＵ字状に折り曲げられた波形鋼板からなる水路本体と、水路本体の上縁部に、水路本体の長手方向に沿って取り付けられた腹起し材と、腹起し材間に取り付けられた切梁とから構成される水路において、腹起し材は、緩衝部材を介して水路本体に取り付けられていることを特徴とする。 The water channel of Patent Document 5 is a water channel body made of a corrugated steel plate bent in a U shape in a direction orthogonal to the wavy direction, and a bellows attached to the upper edge of the water channel body along the longitudinal direction of the water channel body. In a water channel composed of a raising material and a girder attached between the raising materials, the raising material is characterized in that it is attached to the water channel main body via a cushioning member.

実開平１−１６７４８７号公報Jikkenhei 1-167487 国際公開２０１３／２０９５号公報International Publication 2013/2095 特開２０１５−１６９０５６号公報JP-A-2015-169506 特開２０１８−１６２５９４号公報JP-A-2018-162594 特開２０１８−７６６５９号公報JP-A-2018-76659

特許文献１〜５の開示技術では、Ｕ字状の鋼板の上端部に腹起し材が取り付けられ、更に腹起し材同士に切梁が取り付けられる。このような鋼板が用いられる水路は、液状化や不同沈下等が発生しやすい軟弱地盤に設置され、軟弱地盤の変動に追従できるように、比較的撓みやすい板厚の薄い鋼板が用いられる。そして、腹起し材と切梁とにより剛性を高めることで、鋼板の撓みを低減させる。 In the disclosed techniques of Patent Documents 1 to 5, a raising member is attached to the upper end of the U-shaped steel plate, and a girder is attached to the raising members. The water channel in which such a steel plate is used is installed on soft ground where liquefaction and uneven settlement are likely to occur, and a steel plate having a relatively thin thickness that is relatively easy to bend is used so that it can follow the fluctuation of the soft ground. Then, the bending of the steel plate is reduced by increasing the rigidity by the raising material and the girder.

ところで、従来の水路９では、図１２（ａ）及び図１２（ｂ）に示すように、波形鋼板９２の上下方向に延びる側壁部分９２１にアングル材９６を介して腹起し材９３が連結される。板厚の薄い波形鋼板９２の側壁部分９２１には、アングル材９６と連結するためのボルト孔９４が形成され、このボルト孔９４に水平方向に延びるボルト９７が貫通されてアングル材９６と波形鋼板９２とがボルト接合される。また、腹起し材９３には、アングル材９６と連結するためのボルト孔９９が形成され、このボルト孔９９に鉛直方向に延びるボルト９８が貫通されてアングル材９６と腹起し材９３とがボルト接合される。ここで、不同沈下等の地盤の変動が生じたとき、波形鋼板９２は水路９の延伸方向にも変形しようとする。しかしながら、アングル材９６と腹起し材９３とが相対移動できないようにボルト９８により接合される。このため、波形鋼板９２が地盤の変動に追従するように変形することができず、ボルト９７やボルト９８に大きなせん断力が作用し、波形鋼板９２やアングル材９６が破損するおそれがあった。その結果、腹起し材９３を安定して保持することができず、水路としての機能を発揮できないおそれがあった。 By the way, in the conventional water channel 9, as shown in FIGS. 12A and 12B, the abdominal raising member 93 is connected to the side wall portion 921 extending in the vertical direction of the corrugated steel plate 92 via the angle member 96. To. A bolt hole 94 for connecting to the angle member 96 is formed in the side wall portion 921 of the corrugated steel plate 92 having a thin plate thickness, and a bolt 97 extending in the horizontal direction is penetrated through the bolt hole 94 to penetrate the angle member 96 and the corrugated steel plate. The 92 is bolted. Further, a bolt hole 99 for connecting to the angle member 96 is formed in the raising member 93, and a bolt 98 extending in the vertical direction is penetrated through the bolt hole 99, so that the angle member 96 and the raising member 93 are formed. Bolted. Here, when ground movement such as uneven subsidence occurs, the corrugated steel plate 92 also tries to deform in the stretching direction of the water channel 9. However, the angle member 96 and the raising member 93 are joined by bolts 98 so as not to move relative to each other. Therefore, the corrugated steel plate 92 cannot be deformed so as to follow the fluctuation of the ground, and a large shearing force acts on the bolts 97 and 98, which may damage the corrugated steel plate 92 and the angle member 96. As a result, the abdominal raising material 93 could not be stably held, and there was a risk that the function as a water channel could not be exhibited.

そこで、本発明は、上述した問題点に鑑みて案出されたものであり、その目的とするところは、腹起し材を安定して保持することが可能となる水路を提供することにある。 Therefore, the present invention has been devised in view of the above-mentioned problems, and an object of the present invention is to provide a water channel capable of stably holding the abdominal material. ..

第１発明に係る水路は、鋼板が用いられ、一対の側壁部と底部とによりＵ字状に形成される水路本体と、一対の前記側壁部の上端部に、前記延伸方向に直交する幅方向に離間させて設けられる腹起し材と、前記幅方向に離間した前記腹起し材同士を連結する切梁と、を備え、前記水路本体は、前記延伸方向に向けて前記腹起し材に対して相対移動可能に、前記腹起し材に接合されることを特徴とする。 The water channel according to the first invention uses a steel plate, and has a water channel body formed in a U shape by a pair of side wall portions and a bottom portion, and a width direction orthogonal to the stretching direction at the upper end portions of the pair of the side wall portions. The water channel main body includes the abdominal raising material provided apart from each other and a girder for connecting the abdominal raising materials separated in the width direction, and the waterway main body is provided with the abdominal raising material in the extending direction. It is characterized in that it is joined to the abdominal raising material so as to be relatively movable with respect to the above.

第２発明に係る水路は、第１発明において、前記腹起し材は、前記水路本体とボルト接合するための第１ボルトが貫通される第１貫通孔が形成され、前記第１貫通孔は、前記延伸方向に沿って延びる長孔形状であることを特徴とする。 In the water channel according to the second invention, in the first invention, the abdominal raising material is formed with a first through hole through which the first bolt for bolting with the water channel body is passed, and the first through hole is formed. , It is characterized by having an elongated hole shape extending along the stretching direction.

第３発明に係る水路は、第１発明又は第２発明において、前記水路本体は、前記腹起し材を支持する支持部材を有し、前記支持部材は、前記腹起し材とボルト接合するための第２ボルトが貫通される第２貫通孔が形成され、前記第２貫通孔は、前記延伸方向に沿って延びる長孔形状であることを特徴とする。 In the water channel according to the third invention, in the first invention or the second invention, the water channel body has a support member for supporting the abdominal raising material, and the support member is bolted to the abdominal raising material. A second through hole is formed through which the second bolt for the purpose is passed, and the second through hole has an elongated hole shape extending along the stretching direction.

第４発明に係る水路は、第１発明〜第３発明の何れかにおいて、前記水路本体は、前記延伸方向で隣接する鋼板同士を連結する鋼板継手部を有し、前記鋼板継手部は、前記延伸方向で隣接する鋼板同士をボルト接合する第３ボルト及び前記第３ボルトが螺着される第３ナットが用いられ、前記腹起し材は、前記第３ボルト又は前記第３ナットよりも径大な第３貫通孔が形成され、前記第３貫通孔の内側に前記第３ボルトの頭部又は前記第３ナットが配置されることを特徴とする。 Regarding the water channel according to the fourth invention, in any one of the first to third inventions, the water channel body has a steel plate joint portion for connecting adjacent steel plates in the stretching direction, and the steel plate joint portion is the said. A third bolt for bolting adjacent steel plates in the stretching direction and a third nut to which the third bolt is screwed are used, and the raising material has a diameter larger than that of the third bolt or the third nut. A large third through hole is formed, and the head of the third bolt or the third nut is arranged inside the third through hole.

本発明によれば、腹起し材を安定して保持することが可能となる水路を提供することができる。 According to the present invention, it is possible to provide a water channel capable of stably holding the abdominal raising material.

図１は、第１実施形態に係る水路の一例を示す斜視図である。FIG. 1 is a perspective view showing an example of a water channel according to the first embodiment. 図２は、第１実施形態に係る水路の一例を示す平面図である。FIG. 2 is a plan view showing an example of a water channel according to the first embodiment. 図３は、第１実施形態に係る水路の一例を示す正面図である。FIG. 3 is a front view showing an example of a water channel according to the first embodiment. 図４は、図３のａ部拡大図である。FIG. 4 is an enlarged view of part a in FIG. 図５（ａ）は、第１実施形態に係る水路の一例を示す拡大平面図であり、図５（ｂ）は、図５（ａ）のＡ−Ａ線断面図である。5 (a) is an enlarged plan view showing an example of a water channel according to the first embodiment, and FIG. 5 (b) is a sectional view taken along line AA of FIG. 5 (a). 図６は、図３のＡ−Ａ断面図である。FIG. 6 is a cross-sectional view taken along the line AA of FIG. 図７（ａ）は、第２実施形態に係る水路の一例を示す拡大平面図であり、図７（ｂ）は、図７（ａ）のＡ−Ａ線断面図である。FIG. 7 (a) is an enlarged plan view showing an example of the water channel according to the second embodiment, and FIG. 7 (b) is a sectional view taken along line AA of FIG. 7 (a). 図８（ａ）は、第２実施形態に係る水路の第１変形例を示す拡大平面図であり、図８（ｂ）は、図８（ａ）のＡ−Ａ線断面図である。8 (a) is an enlarged plan view showing a first modification of the water channel according to the second embodiment, and FIG. 8 (b) is a sectional view taken along line AA of FIG. 8 (a). 図９は、第３実施形態に係る水路の一例を示す拡大正面図である。FIG. 9 is an enlarged front view showing an example of the water channel according to the third embodiment. 図１０（ａ）は、第３実施形態に係る水路の一例を示す拡大平面図であり、図１０（ｂ）は、図１０（ａ）のＡ−Ａ線断面図である。10 (a) is an enlarged plan view showing an example of the water channel according to the third embodiment, and FIG. 10 (b) is a sectional view taken along line AA of FIG. 10 (a). 図１１（ａ）は、第４実施形態に係る水路の一例を示す拡大平面図であり、図１１（ｂ）は、図１１（ａ）のＡ−Ａ線断面図である。11 (a) is an enlarged plan view showing an example of the water channel according to the fourth embodiment, and FIG. 11 (b) is a sectional view taken along line AA of FIG. 11 (a). 図１２（ａ）は、従来の水路をその延伸方向から見た拡大正面図であり、図１２（ｂ）は、図１２（ａ）のＡ−Ａ線断面図である。FIG. 12 (a) is an enlarged front view of a conventional water channel as viewed from its extending direction, and FIG. 12 (b) is a sectional view taken along line AA of FIG. 12 (a).

以下、本発明を適用した水路を実施するための形態について、図面を参照しながら詳細に説明する。 Hereinafter, a mode for carrying out a water channel to which the present invention is applied will be described in detail with reference to the drawings.

（第１実施形態）
図１は、第１実施形態に係る水路１の一例を示す斜視図である。図２は、第１実施形態に係る水路１の一例を示す平面図である。図３は、第１実施形態に係る水路１の一例を示す正面図である。以下、上下方向Ｚとし、上下方向Ｚに直交する方向を延伸方向Ｘとし、上下方向Ｚと延伸方向Ｘに直交する方向を幅方向Ｙとする。 (First Embodiment)
FIG. 1 is a perspective view showing an example of a water channel 1 according to the first embodiment. FIG. 2 is a plan view showing an example of the water channel 1 according to the first embodiment. FIG. 3 is a front view showing an example of the water channel 1 according to the first embodiment. Hereinafter, the vertical direction Z is defined, the direction orthogonal to the vertical direction Z is defined as the stretching direction X, and the direction orthogonal to the vertical direction Z and the stretching direction X is defined as the width direction Y.

水路１は、不同沈下や液状化等が発生しやすい軟弱地盤に設けられる。水路１は、水路本体２と、腹起し材３と、切梁４とを備える。 The water channel 1 is provided on soft ground where uneven subsidence and liquefaction are likely to occur. The water channel 1 includes a water channel main body 2, an abdominal raising member 3, and a girder 4.

水路本体２は、鋼板が用いられる。鋼板は、コルゲート鋼板等の波形鋼板が用いられる。水路本体２は、一対の側壁部２１、２１と、一対の側壁部２１、２１を繋ぐ底部２２とを有する。水路本体２は、一対の側壁部２１、２１と底部２２とにより、延伸方向Ｘに直交する断面においてＵ字状に形成される。 A steel plate is used for the water channel main body 2. As the steel plate, a corrugated steel plate such as a corrugated steel plate is used. The water channel main body 2 has a pair of side wall portions 21 and 21 and a bottom portion 22 connecting the pair of side wall portions 21 and 21. The water channel main body 2 is formed in a U shape in a cross section orthogonal to the stretching direction X by the pair of side wall portions 21, 21 and the bottom portion 22.

水路本体２は、延伸方向Ｘに向けて延びて形成される。水路本体２は、Ｌ字状に形成された２枚の鋼板が、底部２２でボルト接合されて断面Ｕ字状に形成される。また、水路本体２は、断面Ｕ字状に形成された１枚の鋼板が用いられ、延伸方向Ｘにボルト接合されて複数連結され、延伸方向Ｘに向けて延びて形成されてもよい。 The water channel body 2 is formed so as to extend in the stretching direction X. In the water channel main body 2, two steel plates formed in an L shape are bolted at the bottom 22 to form a U shape in cross section. Further, as the water channel main body 2, one steel plate formed in a U-shaped cross section may be used, and a plurality of steel plates may be bolted and connected in the stretching direction X and may be formed so as to extend in the stretching direction X.

水路本体２は、延伸方向Ｘに隣接する鋼板同士が互いにボルト接合された鋼板継手部２５を有する。鋼板継手部２５は、延伸方向Ｘで隣接する２つの鋼板のそれぞれの端部同士を一部重ね合わせた重ね合わせ部２６をボルト接合するボルト２５８及びナット２５９を有する。重ね合わせ部２６は、側壁部２１、底部２２及びフランジ部２３に形成される。 The water channel main body 2 has a steel plate joint portion 25 in which steel plates adjacent to each other in the stretching direction X are bolted to each other. The steel plate joint portion 25 has a bolt 258 and a nut 259 that bolt-join the overlapped portion 26 in which the ends of the two adjacent steel plates are partially overlapped with each other in the stretching direction X. The overlapping portion 26 is formed on the side wall portion 21, the bottom portion 22, and the flange portion 23.

図４は、図３のａ部拡大図である。水路本体２は、側壁部２１の上端部２１ａに、鋼板が折り曲げられて形成されたフランジ部２３を有する。一方のフランジ部２３と、幅方向Ｙに離間した他方のフランジ部２３とは、水路本体２の外側方向に向けて折り曲げられて形成される。フランジ部２３は、鋼板が水平方向に沿って延びて形成される。フランジ部２３は、側壁部２１に近接する側の端部を基端部２３ａとし、側壁部２１から離間する側の端部を先端部２３ｂとしたとき、基端部２３ａと先端部２３ｂとが上下方向Ｚにおいて略同じ高さに配置される。フランジ部２３は、貫通孔２４が形成され、ボルト８が貫通される。 FIG. 4 is an enlarged view of part a in FIG. The water channel main body 2 has a flange portion 23 formed by bending a steel plate at the upper end portion 21a of the side wall portion 21. One flange portion 23 and the other flange portion 23 separated from each other in the width direction Y are formed by being bent toward the outside of the water channel main body 2. The flange portion 23 is formed by extending a steel plate along the horizontal direction. When the end portion of the flange portion 23 on the side close to the side wall portion 21 is the base end portion 23a and the end portion on the side away from the side wall portion 21 is the tip portion 23b, the base end portion 23a and the tip portion 23b are formed. They are arranged at substantially the same height in the vertical direction Z. A through hole 24 is formed in the flange portion 23, and the bolt 8 is passed through the flange portion 23.

腹起し材３は、図３に示すように、幅方向Ｙに離間して一対となって、それぞれフランジ部２３に載置される。腹起し材３は、例えばＨ形鋼が用いられる。腹起し材３は、断面Ｌ字状に形成されるアングル材、断面コの字状に形成されるＣ形鋼等であってもよい。 As shown in FIG. 3, the abdominal raising members 3 are placed in pairs on the flange portion 23 so as to be separated from each other in the width direction Y. For the abdominal raising material 3, for example, H-shaped steel is used. The abdominal raising material 3 may be an angle material formed in an L-shaped cross section, a C-shaped steel formed in a U-shaped cross section, or the like.

腹起し材３は、図４に示すように、貫通孔３１が形成され、ボルト８が貫通される。腹起し材３は、フランジ部２３に載置され、貫通孔２４と貫通孔３１とに貫通されるボルト８により、水路本体２のフランジ部２３とボルト接合される。 As shown in FIG. 4, the abdominal raising material 3 is formed with a through hole 31 through which the bolt 8 is penetrated. The abdominal raising member 3 is placed on the flange portion 23, and is bolted to the flange portion 23 of the water channel main body 2 by a bolt 8 penetrating through the through hole 24 and the through hole 31.

図５（ａ）は、第２実施形態に係る水路１の一例を示す拡大平面図であり、図５（ｂ）は、図５（ａ）のＡ−Ａ線断面図である。図８は、主に腹起し材３近傍を拡大して示す。貫通孔３１は、延伸方向Ｘに向けて延びる長孔形状に形成される。これにより、水路本体２は、延伸方向Ｘに向けて腹起し材３に対して相対移動可能に、腹起し材３に接合される。 5 (a) is an enlarged plan view showing an example of the water channel 1 according to the second embodiment, and FIG. 5 (b) is a sectional view taken along line AA of FIG. 5 (a). FIG. 8 mainly shows the vicinity of the abdominal raising material 3 in an enlarged manner. The through hole 31 is formed in an elongated hole shape extending in the stretching direction X. As a result, the water channel main body 2 is joined to the abdominal member 3 so as to be relatively movable with respect to the abdominal member 3 in the stretching direction X.

図６は、図３のＡ−Ａ断面図である。切梁４は、幅方向Ｙに離間した一対の腹起し材３、３同士を連結する。切梁４は、例えば鋼管が用いられる。切梁４は、Ｌ字状に形成されるアングル材、角形鋼管、丸鋼、Ｈ鋼等であってもよい。切梁４は、板材からなる取付プレート４１を介して腹起し材３にボルト接合される。 FIG. 6 is a cross-sectional view taken along the line AA of FIG. The girder 4 connects a pair of raising members 3 and 3 separated from each other in the width direction Y. For the girder 4, for example, a steel pipe is used. The girder 4 may be an angle member, a square steel pipe, a round steel, an H steel or the like formed in an L shape. The girder 4 is bolted to the abdominal member 3 via a mounting plate 41 made of a plate material.

本実施形態によれば、水路本体２が延伸方向Ｘに向けて腹起し材３に対して相対移動可能に、腹起し材３に接合される。不同沈下等の地盤が沈下したとき、水路本体２は、例えば延伸方向Ｘに向けて変形しようとする。側壁部２１が延伸方向Ｘに向けて変形したとき、フランジ部２３を腹起し材３に対して延伸方向Ｘに移動させることができる。このため、ボルト８に作用するせん断力を低減でき、フランジ部２３が破断するのを抑制することができる。その結果、腹起し材３を安定して保持することが可能となり、水路としての機能を発揮させることができる。 According to the present embodiment, the water channel main body 2 is joined to the abdominal member 3 so as to be relatively movable with respect to the abdominal member 3 in the stretching direction X. When the ground such as uneven subsidence subsides, the water channel body 2 tends to deform, for example, in the extension direction X. When the side wall portion 21 is deformed in the stretching direction X, the flange portion 23 can be moved in the stretching direction X with respect to the abdominal member 3. Therefore, the shearing force acting on the bolt 8 can be reduced, and the flange portion 23 can be suppressed from breaking. As a result, the abdominal raising material 3 can be stably held, and the function as a water channel can be exhibited.

本実施形態によれば、腹起し材３は、水路本体２とボルト接合するためのボルト８が貫通される貫通孔３１（第１貫通孔）が形成され、貫通孔３１は、延伸方向Ｘに沿って延びる長孔形状である。水路本体２が延伸方向Ｘに向けて変形したとき、貫通孔３１が延伸方向Ｘに沿って延びる長孔形状であることにより、フランジ部２３を腹起し材３に対して延伸方向Ｘに相対移動させることができる。このため、ボルト８に作用するせん断力を低減でき、フランジ部２３が破断するのを抑制することができる。その結果、腹起し材３を安定して保持することが可能となり、水路としての機能を発揮させることができる。 According to the present embodiment, the abdominal raising material 3 is formed with a through hole 31 (first through hole) through which a bolt 8 for bolt-joining with the water channel main body 2 is passed, and the through hole 31 is formed in the stretching direction X. It has an elongated hole shape extending along. When the water channel body 2 is deformed in the stretching direction X, the through hole 31 has an elongated hole shape extending along the stretching direction X, so that the flange portion 23 is raised relative to the stretching direction X with respect to the raising material 3. Can be moved. Therefore, the shearing force acting on the bolt 8 can be reduced, and the flange portion 23 can be suppressed from breaking. As a result, the abdominal raising material 3 can be stably held, and the function as a water channel can be exhibited.

更に、本実施形態によれば、水路本体２は、側壁部２１の上端部２１ａに、鋼板が折り曲げられて形成されるフランジ部２３を有し、腹起し材３は、フランジ部２３に載置され、フランジ部２３とボルト接合される。すなわち、水路本体２と腹起し材３との間にアングル材等の部材を介在させることなく、水路本体２のフランジ部２３と腹起し材３とが直接ボルト８によりボルト接合されることとなる。 Further, according to the present embodiment, the water channel main body 2 has a flange portion 23 formed by bending a steel plate at the upper end portion 21a of the side wall portion 21, and the abdominal raising material 3 is mounted on the flange portion 23. It is placed and bolted to the flange portion 23. That is, the flange portion 23 of the water channel body 2 and the raising material 3 are directly bolted by the bolt 8 without interposing a member such as an angle member between the water channel main body 2 and the raising material 3. ..

これにより、フランジ部２３にのみボルト８が貫通される貫通孔２４を形成すればよく、側壁部２１の上下方向Ｚに延びる部分にアングル材等を固定するための孔を形成する必要がない。このため、水路本体２自体の耐力を向上させることができる。 As a result, it is sufficient to form a through hole 24 through which the bolt 8 is penetrated only in the flange portion 23, and it is not necessary to form a hole for fixing the angle member or the like in the portion extending in the vertical direction Z of the side wall portion 21. Therefore, the yield strength of the water channel main body 2 itself can be improved.

そして、不同沈下等の地盤の変動に伴って側壁部２１が変形したとしても、側壁部２１の上下方向Ｚに延びる部分にアングル材等を固定するための孔がないことから、水路本体２の側壁部２１の破断等を抑制することができる。また、地盤が変動したとき、フランジ部２３の変形は、側壁部２１の変形よりも小さいため、ボルト８が腹起し材３とフランジ部２３との間でのせん断力に抵抗でき、フランジ部２３の破断を抑制できる。その結果、腹起し材３を更に安定して保持することが可能となり、水路としての機能を発揮させることができる。 Even if the side wall portion 21 is deformed due to ground movement such as uneven subsidence, there is no hole for fixing the angle member or the like in the portion extending in the vertical direction Z of the side wall portion 21, so that the water channel main body 2 It is possible to suppress breakage of the side wall portion 21 and the like. Further, when the ground fluctuates, the deformation of the flange portion 23 is smaller than the deformation of the side wall portion 21, so that the bolt 8 can resist the shearing force between the abdominal member 3 and the flange portion 23, and the flange portion The breakage of 23 can be suppressed. As a result, the abdominal raising material 3 can be held more stably, and the function as a water channel can be exhibited.

また、本実施形態によれば、水路本体２のフランジ部２３と腹起し材３とが直接ボルト８によりボルト接合されることとなる。これにより、水路本体２と腹起し材３との間にアングル材等の部材を介在させる必要がないため、水路本体２と腹起し材３とを連結する作業を短時間で行うことができる。このため、施工性を向上させることが可能となる。 Further, according to the present embodiment, the flange portion 23 of the water channel main body 2 and the raising member 3 are directly bolted together by the bolt 8. As a result, it is not necessary to interpose a member such as an angle member between the water channel main body 2 and the abdominal raising material 3, so that the work of connecting the water channel main body 2 and the abdominal raising material 3 can be performed in a short time. Therefore, it is possible to improve the workability.

（第２実施形態）
図７（ａ）は、第２実施形態に係る水路１の一例を示す拡大平面図であり、図７（ｂ）は、図７（ｂ）のＡ−Ａ線断面図である。図７は、主に鋼板継手部２５近傍を拡大して示す。 (Second Embodiment)
7 (a) is an enlarged plan view showing an example of the water channel 1 according to the second embodiment, and FIG. 7 (b) is a sectional view taken along line AA of FIG. 7 (b). FIG. 7 mainly shows the vicinity of the steel plate joint portion 25 in an enlarged manner.

第２実施形態に係る水路１は、ボルト２５８又はナット２５９よりも径大な貫通孔３２（第３貫通孔）が腹起し材３に形成される点で、第１実施形態に係る水路１と相違する。 In the water channel 1 according to the second embodiment, a through hole 32 (third through hole) having a diameter larger than that of the bolt 258 or the nut 259 is formed in the raising material 3, and the water channel 1 according to the first embodiment is formed. Is different from.

水路本体２は、延伸方向Ｘで隣接する鋼板同士を連結する鋼板継手部２５を有する。鋼板継手部２５は、延伸方向Ｘで隣接する鋼板同士をボルト接合するボルト２５８（第３ボルト）及びボルト２５８が螺着されるナット２５９（第３ナット）が用いられる。 The water channel main body 2 has a steel plate joint portion 25 that connects adjacent steel plates in the stretching direction X. As the steel plate joint portion 25, a bolt 258 (third bolt) for bolting adjacent steel plates in the drawing direction X and a nut 259 (third nut) to which the bolt 258 is screwed are used.

腹起し材３は、ボルト２５８又はナット２５９よりも径大な円形状の貫通孔３２（第３貫通孔）が形成される。 The abdominal raising material 3 is formed with a circular through hole 32 (third through hole) having a diameter larger than that of the bolt 258 or the nut 259.

図７の例では、フランジ部２３に形成される重ね合わせ部２６よりも上側にボルト２５８の頭部が配置される。このとき、貫通孔３２の直径Ｄは、ボルト２５８の頭部の直径ｄよりも大きくなる。そして、ボルト２５８の頭部は、貫通孔３２の内側に配置されることとなる。 In the example of FIG. 7, the head of the bolt 258 is arranged above the overlapping portion 26 formed on the flange portion 23. At this time, the diameter D of the through hole 32 is larger than the diameter d of the head of the bolt 258. Then, the head of the bolt 258 will be arranged inside the through hole 32.

なお、図示は省略するが、フランジ部２３に形成される重ね合わせ部２６よりも上側にナット２５９が配置されてもよい。このとき、貫通孔３２の直径Ｄは、ナット２５９の直径ｄよりも大きくすればよい。そして、ナット２５９は、貫通孔３２の内側に配置されることとなる。 Although not shown, the nut 259 may be arranged above the overlapping portion 26 formed on the flange portion 23. At this time, the diameter D of the through hole 32 may be larger than the diameter d of the nut 259. Then, the nut 259 is arranged inside the through hole 32.

図８（ａ）は、第３実施形態に係る水路１の第１変形例を示す拡大平面図であり、図８（ｂ）は、図８（ｂ）のＡ−Ａ線断面図である。図８は、主に鋼板継手部２５近傍を拡大して示す。 8 (a) is an enlarged plan view showing a first modification of the water channel 1 according to the third embodiment, and FIG. 8 (b) is a sectional view taken along line AA of FIG. 8 (b). FIG. 8 mainly shows the vicinity of the steel plate joint portion 25 in an enlarged manner.

第２実施形態に係る水路１の第１変形例は、ボルト２５８又はナット２５９よりも径大な貫通孔３２が腹起し材３に形成され、貫通孔３２が延伸方向Ｘに沿って延びる長孔形状である点で、第２実施形態に係る水路１と相違する。 In the first modification of the water channel 1 according to the second embodiment, a through hole 32 having a diameter larger than that of the bolt 258 or the nut 259 is formed in the abdominal raising member 3, and the through hole 32 extends along the stretching direction X. It differs from the water channel 1 according to the second embodiment in that it has a hole shape.

腹起し材３は、ボルト２５８又はナット２５９よりも径大な長孔形状の貫通孔３２（第３貫通孔）が形成される。 The abdominal raising material 3 is formed with an elongated through hole 32 (third through hole) having a diameter larger than that of the bolt 258 or the nut 259.

図８の例では、フランジ部２３に形成される重ね合わせ部２６よりも上側にボルト２５８の頭部が配置される。このとき、貫通孔３２の延伸方向Ｘに沿う長径Ｄ１、幅方向Ｙに沿う短径Ｄ２としたとき、貫通孔３２の長径Ｄ１及び短径Ｄ２が、ボルト２５８の頭部の直径ｄよりも大きくなる。ボルト２５８の頭部は、貫通孔３２の内側に配置されることとなる。 In the example of FIG. 8, the head of the bolt 258 is arranged above the overlapping portion 26 formed on the flange portion 23. At this time, when the major axis D1 along the stretching direction X and the minor axis D2 along the width direction Y of the through hole 32, the major axis D1 and the minor axis D2 of the through hole 32 are larger than the diameter d of the head of the bolt 258. Become. The head of the bolt 258 will be arranged inside the through hole 32.

なお、図示は省略するが、フランジ部２３に形成される重ね合わせ部２６よりも上側にナット２５９が配置されてもよい。このとき、貫通孔３２の長径Ｄ１及び短径Ｄ２は、ナット２５９の直径ｄよりも大きくなればよい。ナット２５９は、貫通孔３２の内側に配置されることとなる。 Although not shown, the nut 259 may be arranged above the overlapping portion 26 formed on the flange portion 23. At this time, the major axis D1 and the minor axis D2 of the through hole 32 may be larger than the diameter d of the nut 259. The nut 259 will be arranged inside the through hole 32.

本実施形態によれば、水路本体２は、延伸方向Ｘで隣接する鋼板同士を連結する鋼板継手部２５を有し、鋼板継手部２５は、延伸方向Ｘで隣接する鋼板同士をボルト接合するボルト２５８（第３ボルト）及びボルト２５８が螺着されるナット２５９（第３ナット）が用いられ、腹起し材３は、ボルト２５８の頭部又はナット２５９よりも径大な貫通孔３２（第３貫通孔）が形成される。これにより、鋼板継手部２５を構成するボルト２５８とナット２５９とが、腹起し材３に干渉するのを防止することができる。 According to the present embodiment, the water channel main body 2 has a steel plate joint portion 25 that connects adjacent steel plates in the stretching direction X, and the steel plate joint portion 25 is a bolt that bolts the adjacent steel plates in the stretching direction X. A nut 259 (third nut) into which the 258 (third bolt) and the bolt 258 are screwed is used, and the raising material 3 is a through hole 32 (third hole 32) having a diameter larger than the head of the bolt 258 or the nut 259. 3 through holes) are formed. As a result, it is possible to prevent the bolt 258 and the nut 259 constituting the steel plate joint portion 25 from interfering with the raising material 3.

また、本実施形態によれば、水路本体２が延伸方向Ｘに向けて変形したとき、フランジ部２３を腹起し材３に対して延伸方向Ｘに相対移動させることができる。このとき、貫通孔３２が鋼板継手部２５に干渉しないものとなるため、鋼板継手部２５により阻害されることなく、フランジ部２３を腹起し材３に対して延伸方向Ｘに相対移動させることができる。このため、ボルト８に作用するせん断力を低減でき、フランジ部２３が破断するのを抑制することができる。 Further, according to the present embodiment, when the water channel main body 2 is deformed in the stretching direction X, the flange portion 23 can be moved relative to the raising material 3 in the stretching direction X. At this time, since the through hole 32 does not interfere with the steel plate joint portion 25, the flange portion 23 is moved relative to the raising material 3 in the stretching direction X without being hindered by the steel plate joint portion 25. Can be done. Therefore, the shearing force acting on the bolt 8 can be reduced, and the flange portion 23 can be suppressed from breaking.

（第３実施形態）
図９（ａ）は、第３実施形態に係る水路１の一例を示す拡大正面図である。図１０（ａ）は、第４実施形態に係る水路の一例を示す拡大平面図であり、図１０（ｂ）は、図１０（ａ）のＡ−Ａ線断面図である。図１０は、主に腹起し材３近傍を拡大して示す。 (Third Embodiment)
FIG. 9A is an enlarged front view showing an example of the water channel 1 according to the third embodiment. 10 (a) is an enlarged plan view showing an example of the water channel according to the fourth embodiment, and FIG. 10 (b) is a sectional view taken along line AA of FIG. 10 (a). FIG. 10 mainly shows the vicinity of the abdominal member 3 in an enlarged manner.

第３実施形態に係る水路１は、水路本体２のフランジ部２３が省略され、水路本体２が支持部材７を有する点で、第１実施形態〜第２実施形態に係る水路１と相違する。 The water channel 1 according to the third embodiment is different from the water channel 1 according to the first to second embodiments in that the flange portion 23 of the water channel body 2 is omitted and the water channel body 2 has the support member 7.

水路本体２は、フランジ部２３が省略され、側壁部２１が上下方向Ｚに延びて形成される。水路本体２は、側壁部２１の上端部２１ａに、ボルト７８が貫通される貫通孔２９が形成される。水路本体２は、支持部材７が接合され、支持部材７を介して腹起し材３に接合される。水路本体２は、支持部材７を介して、延伸方向Ｘに向けて腹起し材３に対して相対移動可能に、腹起し材９３に接合される。 The water channel main body 2 is formed by omitting the flange portion 23 and extending the side wall portion 21 in the vertical direction Z. In the water channel main body 2, a through hole 29 through which the bolt 78 is passed is formed in the upper end portion 21a of the side wall portion 21. The support member 7 is joined to the water channel main body 2, and the water channel main body 2 is joined to the abdominal raising member 3 via the support member 7. The water channel main body 2 is joined to the abdominal member 93 via the support member 7 so as to be movable relative to the abdominal member 3 in the stretching direction X.

支持部材７は、側壁部２１の上端部２１ａにボルト接合され、腹起し材３を載置して腹起し材３を支持するものとなる。支持部材７は、断面Ｌ字状に形成されるアングル材等が用いられる。支持部材７は、断面Ｃ字状に形成されるＣ形鋼等が用いられてもよい。支持部材７は、上下方向Ｚに延びる第１平板部７１と、第１平板部７１に対して直交して延びる第２平板部７３とを有する。 The support member 7 is bolted to the upper end portion 21a of the side wall portion 21 and mounts the abdominal raising member 3 to support the abdominal raising member 3. As the support member 7, an angle member or the like formed in an L-shaped cross section is used. As the support member 7, C-shaped steel or the like formed in a C-shaped cross section may be used. The support member 7 has a first flat plate portion 71 extending in the vertical direction Z and a second flat plate portion 73 extending orthogonally to the first flat plate portion 71.

第１平板部７１は、貫通孔７２が形成され、ボルト７８が貫通される。第１平板部７１は、側壁部２１の上端部２１ａと、ボルト７８によりボルト接合される。第２平板部７３は、円形状の貫通孔７４が形成され、ボルト８が貫通される。第２平板部７３は、腹起し材３に当接される。第２平板部７３は、腹起し材３と、ボルト８によりボルト接合される。 A through hole 72 is formed in the first flat plate portion 71, and a bolt 78 is passed through the first flat plate portion 71. The first flat plate portion 71 is bolted to the upper end portion 21a of the side wall portion 21 by bolts 78. A circular through hole 74 is formed in the second flat plate portion 73, and the bolt 8 is passed through the second flat plate portion 73. The second flat plate portion 73 is in contact with the abdominal raising material 3. The second flat plate portion 73 is bolted to the raising material 3 by bolts 8.

本実施形態であっても、腹起し材３を更に安定して保持することが可能となり、水路としての機能を発揮させることができる。 Even in this embodiment, the abdominal raising material 3 can be held more stably, and the function as a water channel can be exhibited.

本実施形態によれば、腹起し材３は、水路本体２とボルト接合するためのボルト８が貫通される貫通孔３１（第１貫通孔）が形成され、貫通孔３１は、延伸方向Ｘに沿って延びる長孔形状である。水路本体２が延伸方向Ｘに向けて変形したとき、貫通孔３１が延伸方向Ｘに沿って延びる長孔形状であることにより、支持部材７を腹起し材３に対して延伸方向Ｘに相対移動させることができる。このため、ボルト８やボルト７８に作用するせん断力を低減でき、水路本体２や支持部材７が破断するのを抑制することができる。その結果、腹起し材３を更に安定して保持することが可能となり、水路としての機能を発揮させることができる。 According to the present embodiment, the abdominal raising material 3 is formed with a through hole 31 (first through hole) through which a bolt 8 for bolt-joining with the water channel main body 2 is passed, and the through hole 31 is formed in the stretching direction X. It has an elongated hole shape extending along. When the water channel body 2 is deformed in the stretching direction X, the through hole 31 has an elongated hole shape extending along the stretching direction X, so that the support member 7 is raised relative to the stretching direction X with respect to the raising material 3. Can be moved. Therefore, the shearing force acting on the bolt 8 and the bolt 78 can be reduced, and the breakage of the water channel body 2 and the support member 7 can be suppressed. As a result, the abdominal raising material 3 can be held more stably, and the function as a water channel can be exhibited.

（第４実施形態）
図１０（ａ）は、第５実施形態に係る水路の一例を示す拡大平面図であり、図１０（ｂ）は、図１０（ａ）のＡ−Ａ線断面図である。図１０は、主に腹起し材３近傍を拡大して示す。 (Fourth Embodiment)
10 (a) is an enlarged plan view showing an example of the water channel according to the fifth embodiment, and FIG. 10 (b) is a sectional view taken along line AA of FIG. 10 (a). FIG. 10 mainly shows the vicinity of the abdominal member 3 in an enlarged manner.

第４実施形態に係る水路１は、支持部材７の貫通孔７４が延伸方向Ｘに向けて延びる長孔形状である点で、第３実施形態に係る水路１と相違する。 The water channel 1 according to the fourth embodiment is different from the water channel 1 according to the third embodiment in that the through hole 74 of the support member 7 has an elongated hole shape extending in the extending direction X.

支持部材７は、第２平板部７３に形成される貫通孔７４が、延伸方向Ｘに向けて延びる長孔形状である。第２平板部７３は、長孔形状の貫通孔７４にボルト８が貫通される。第２平板部７３は、腹起し材３と、ボルト８によりボルト接合される。 The support member 7 has an elongated hole shape in which the through hole 74 formed in the second flat plate portion 73 extends in the stretching direction X. In the second flat plate portion 73, the bolt 8 is passed through the elongated through hole 74. The second flat plate portion 73 is bolted to the raising material 3 by bolts 8.

図１０の例では、腹起し材３に形成される貫通孔３１は、円形状に形成される。なお、図示は省略するが、貫通孔３１は、延伸方向Ｘに向けて延びる長孔形状であってもよい。 In the example of FIG. 10, the through hole 31 formed in the abdominal raising member 3 is formed in a circular shape. Although not shown, the through hole 31 may have an elongated hole shape extending in the stretching direction X.

本実施形態によれば、水路本体２は、腹起し材３を支持する支持部材７を有し、支持部材７は、腹起し材３とボルト接合するためのボルト７８（第２ボルト）が貫通される貫通孔７４（第２貫通孔）が形成され、貫通孔７４は、延伸方向Ｘに沿って延びる長孔形状である。水路本体２が延伸方向Ｘに向けて変形したとき、貫通孔７４が延伸方向Ｘに沿って延びる長孔形状であることにより、支持部材７を腹起し材３に対して延伸方向Ｘに相対移動させることができる。このため、ボルト８やボルト７８に作用するせん断力を低減でき、水路本体２や支持部材７が破断するのを抑制することができる。その結果、腹起し材３を更に安定して保持することが可能となり、水路としての機能を発揮させることができる。 According to the present embodiment, the water channel main body 2 has a support member 7 for supporting the abdominal raising member 3, and the support member 7 is a bolt 78 (second bolt) for bolt-joining with the abdominal raising member 3. A through hole 74 (second through hole) is formed through which the through hole 74 is penetrated, and the through hole 74 has an elongated hole shape extending along the stretching direction X. When the water channel body 2 is deformed in the stretching direction X, the through hole 74 has an elongated hole shape extending along the stretching direction X, so that the support member 7 is raised relative to the stretching direction X with respect to the raising material 3. Can be moved. Therefore, the shearing force acting on the bolt 8 and the bolt 78 can be reduced, and the breakage of the water channel body 2 and the support member 7 can be suppressed. As a result, the abdominal raising material 3 can be held more stably, and the function as a water channel can be exhibited.

以上、この発明の実施形態のいくつかを説明したが、これらの実施形態は例として提示したものであり、発明の範囲を限定することは意図していない。また、これらの実施形態は、適宜組み合わせて実施することが可能である。さらに、この発明は、上記いくつかの実施形態の他、様々な新規な形態で実施することができる。したがって、上記いくつかの実施形態のそれぞれは、この発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更が可能である。このような新規な形態や変形は、この発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明、及び特許請求の範囲に記載された発明の均等物の範囲に含まれる。 Although some of the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. Moreover, these embodiments can be carried out in combination as appropriate. Furthermore, the present invention can be implemented in various novel embodiments in addition to the above-mentioned some embodiments. Therefore, each of the above-mentioned several embodiments can be omitted, replaced, or changed in various ways without departing from the gist of the present invention. Such novel forms and modifications are included in the scope and gist of the present invention, as well as in the scope of the invention described in the claims and the equivalent of the invention described in the claims.

１：水路
２：水路本体
２１：側壁部
２１ａ：上端部
２２：底部
２３：フランジ部
２３ａ：基端部
２３ｂ：先端部
２４：貫通孔
２５：鋼板継手部
２５８：ボルト
２５９：ナット
２６：重ね合わせ部
２９：貫通孔
３：腹起し材
３１：貫通孔
３２：貫通孔
４：切梁
４１：取付プレート
７：支持部材
７１：第１平板部
７２：貫通孔
７３：第２平板部
７４：貫通孔
７８：ボルト
８：ボルト
９：水路
９２：波形鋼板
９２１：側壁部分
９３：腹起し材
９４：ボルト孔
９６：アングル材
９７：ボルト
９８：ボルト
９９：ボルト孔
Ｘ：延伸方向
Ｙ：幅方向
Ｚ：上下方向 1: Water channel 2: Water channel body 21: Side wall 21a: Upper end 22: Bottom 23: Flange 23a: Base end 23b: Tip 24: Through hole 25: Steel plate joint 258: Bolt 259: Nut 26: Overlapping Part 29: Through hole 3: Raising material 31: Through hole 32: Through hole 4: Cutting beam 41: Mounting plate 7: Support member 71: First flat plate portion 72: Through hole 73: Second flat plate portion 74: Through Hole 78: Bolt 8: Bolt 9: Water channel 92: Corrugated steel plate 921: Side wall portion 93: Raising material 94: Bolt hole 96: Angle material 97: Bolt 98: Bolt 99: Bolt hole X: Stretching direction Y: Width direction Z: Vertical direction

Claims

A water channel body in which a steel plate is used and formed in a U shape by a pair of side wall portions and a bottom portion,
An abdominal raising member provided at the upper ends of the pair of side wall portions at intervals in the width direction orthogonal to the stretching direction.
A girder for connecting the abdominal members separated in the width direction is provided.
The water channel body is joined to the abdominal raising material so as to be relatively movable with respect to the abdominal raising material in the stretching direction.

The abdominal raising material is formed with a first through hole through which a first bolt for bolt-joining with the water channel body is passed.
The water channel according to claim 1, wherein the first through hole has an elongated hole shape extending along the extending direction.

The water channel body has a support member that supports the abdominal raising material, and has a support member.
The support member is formed with a second through hole through which a second bolt for bolt-joining the abdominal raising member is passed.
The water channel according to claim 1 or 2, wherein the second through hole has an elongated hole shape extending along the extending direction.

The water channel body has a steel plate joint portion that connects adjacent steel plates in the stretching direction.
As the steel plate joint portion, a third bolt for bolting adjacent steel plates in the stretching direction and a third nut to which the third bolt is screwed are used.
In the abdominal raising material, a third through hole having a diameter larger than that of the third bolt or the third nut is formed, and the head of the third bolt or the third nut is formed inside the third through hole. The water channel according to any one of claims 1 to 3, wherein the water channel is arranged.