JP6709084B2 - Method of repairing canal structure and canal structure - Google Patents

Method of repairing canal structure and canal structure Download PDF

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JP6709084B2
JP6709084B2 JP2016049179A JP2016049179A JP6709084B2 JP 6709084 B2 JP6709084 B2 JP 6709084B2 JP 2016049179 A JP2016049179 A JP 2016049179A JP 2016049179 A JP2016049179 A JP 2016049179A JP 6709084 B2 JP6709084 B2 JP 6709084B2
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waterway
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pipe
opening
rehabilitation
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JP2017166120A (en
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直人 浪花
直人 浪花
忠臣 栗栖
忠臣 栗栖
弘和 長橋
弘和 長橋
智巳 加藤
智巳 加藤
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Sekisui Chemical Co Ltd
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本発明は、道路の側溝等における老朽化した水路構造物を補修する方法、及び老朽化した水路構造物を補修してなる補修水路構造物に関し、特に高速道路の側溝に好適な補修方法及び補修水路構造物に関する。 The present invention relates to a method for repairing an aged waterway structure in a gutter of a road, etc., and a repairing canal structure obtained by repairing an aged waterway structure, and a repairing method and a repair particularly suitable for a highway ditch. Concerning canal structures.

一般に、道路の側溝は、上面開口のＵ字型のコンクリートブロックにて構成され、かつ、上面が蓋で閉じられている。一方、高速道路等の側溝は、蓋の飛散の問題が生じない蓋無し構造にするために、例えば円形断面の主水路とスリット状の開口路を有する円形水路付きのコンクリートブロックが広く使用されている。スリット状の開口路は、コンクリートブロックの上面（外面）から主水路の頂部に達している（下記特許文献等参照）。 Generally, the gutter of a road is constituted by a U-shaped concrete block having an upper surface opening, and the upper surface is closed by a lid. On the other hand, for gutters on highways and the like, concrete blocks with circular water channels having a main water channel with a circular cross section and a slit-shaped opening channel are widely used in order to create a structure without a lid that does not cause the problem of scattering of the lid. There is. The slit-shaped opening passage reaches the top of the main water passage from the upper surface (outer surface) of the concrete block (see Patent Documents below).

特開平０３−０４２８８６号公報（第９図）JP-A-03-042886 (FIG. 9) 特開２００４−２３２２６０号公報JP, 2004-232260, A 特開２０１３−０９１９７６号公報JP, 2013-091976, A 特開２０００−０３４７６９号公報JP, 2000-034769, A

近年、高速道路の側溝の老朽化が進み、その対策が求められている。例えば、冬季、凍結融解剤を散布すると、塩化物を含む路面水が側溝へ流れる。そして、コンクリート内壁で乾湿が繰り返されることにより、躯体内部への塩化物浸透が進んで、鉄筋が腐食して膨張し、被り部分のコンクリートの剥落が起きやすくなる。特に、円形水路等の、蓋が不要な側溝構造では、円形断面の主水路の上側のスリット状開口路の周辺部分で腐食や剥落が起きやすい。そこで、主水路の上側のコンクリート部分をカットし、コンクリート蓋を被せる等の対策が採られている。しかし、そうすると、車の乗上げによる蓋の飛散の問題が生じ、更には通水断面を阻害してしまう。
本発明は、かかる事情に鑑みてなされたものであり、高速道路その他の道路における円形水路等の主水路とスリット状開口路とを有する老朽化した水路構造物を、蓋が不要な構造を保ちながら補修することを目的とする。 In recent years, gutters on expressways have deteriorated, and countermeasures against them have been demanded. For example, in winter, when a freeze-thaw agent is sprayed, chloride-containing road surface water flows into the gutter. Then, by repeating the dry and wet conditions on the inner wall of the concrete, chloride permeation into the inside of the skeleton progresses, the reinforcing bars corrode and expand, and the concrete in the covered portion is easily peeled off. In particular, in a gutter structure such as a circular water channel that does not require a lid, corrosion or peeling is likely to occur in the peripheral portion of the slit-shaped open channel above the main water channel having a circular cross section. Therefore, measures such as cutting the concrete part above the main waterway and covering it with a concrete lid are taken. However, in that case, a problem of scattering of the lid due to the riding of the car will occur, and further, the water cross section will be obstructed.
The present invention has been made in view of the above circumstances, and maintains an aged waterway structure having a main waterway such as a circular waterway in a highway and other roads and a slit-shaped opening, without a lid. While aiming to repair.

上記課題を解決するために、本発明方法は、主水路と、前記主水路の上部から外面に達するスリット状の開口路とを有し、道路の側部に沿って延びるようにして地中に敷設された水路構造物を補修する方法であって、
前記道路に前記主水路と一直線に連なる管発進溝を開削し、
複数の更生管を１つずつ前記管発進溝から前記主水路に挿入することによって、前記複数の更生管を一列に連ねて前記主水路に収容し、
前記主水路の内周面と前記更生管との間の環状部に被覆層を充填し、
前記充填後、前記更生管の上側部に前記開口路と連なるスリットを形成することを特徴とする。
管発進溝を設けることで、更生管を水路構造物の主水路内に確実に挿し入れることができる。被覆層によって主水路の内周面を防食できる。更に被覆層を更生管によって覆うことで一層確実に防食できる。環状の更生管によって、蓋が不要な水路構造を保つことができる。更生管にスリットを形成することで、路面水を開口路からスリットを通して、更生管内に導くことができる。更生管の内部が、補修後の新たな主水路となる。 In order to solve the above problems, the method of the present invention has a main waterway and a slit-shaped opening that reaches the outer surface from the upper part of the main waterway, and extends along the side of the road to the ground. A method for repairing a laid waterway structure,
Opening and cutting a pipe starting groove in line with the main waterway on the road,
By inserting a plurality of rehabilitating pipes one by one into the main water channel from the pipe starting groove, the plurality of rehabilitating pipes are stored in the main water channel in a row.
Filling an annular portion between the inner peripheral surface of the main water channel and the rehabilitation pipe with a coating layer,
After the filling, a slit is formed on the upper side of the rehabilitation pipe, the slit being continuous with the opening.
By providing the pipe starting groove, the rehabilitation pipe can be reliably inserted into the main waterway of the waterway structure. The coating layer can protect the inner surface of the main waterway from corrosion. Further, by covering the coating layer with the rehabilitation pipe, the corrosion can be more surely prevented. The annular rehabilitation pipe can maintain a waterway structure that does not require a lid. By forming a slit in the rehabilitation pipe, it is possible to guide road surface water from the open passage through the slit into the rehabilitation pipe. The inside of the rehabilitation pipe will be the new main canal after repair.

前記水路構造物が、前記道路の本線に沿う本線水路部と、前記本線の側方に設けられた非常駐車帯の縁部に沿う駐車帯水路部とを有しており、
前記管発進溝を、前記非常駐車帯の前記本線からの出入り部における前記本線水路部の延長線上に開削し、
かつ、前記本線水路部と前記駐車帯水路部との角部の壁を貫通させて、前記管発進溝を前記本線水路部と連通させることが好ましい。
これによって、非常駐車帯を更生管の挿入作業スペースとして利用できる。管発進溝を本線水路部と一直線に連ねることで、更生管を管発進溝から本線水路部の主水路へ容易に挿入できる。 The waterway structure has a mainline waterway part along the mainline of the road, and a parking zone waterway part along the edge of an emergency parking zone provided on the side of the mainline,
The pipe starting groove is excavated on an extension line of the main waterway portion in the entrance/exit portion from the main line of the emergency parking zone,
In addition, it is preferable that a wall of a corner portion between the main waterway portion and the parking zone waterway portion is penetrated to communicate the pipe starting groove with the main waterway portion.
As a result, the emergency parking zone can be used as a work space for inserting the rehabilitation pipe. By connecting the pipe starting groove with the main waterway part in a straight line, the rehabilitation pipe can be easily inserted from the pipe starting groove into the main waterway of the main waterway part.

前記更生管が、アニーリング処理されていることが好ましい。これによって、スリット形成に伴う更生管の縮径を防止できる。ひいては、更生管が被覆層から剥がれて、更生管と被覆層との間に隙間が形成されるのを防止できる。 The rehabilitation tube is preferably annealed. Thereby, the diameter reduction of the rehabilitation pipe accompanying the slit formation can be prevented. As a result, it is possible to prevent the rehabilitation pipe from peeling off from the coating layer and forming a gap between the rehabilitation pipe and the coating layer.

本発明構造は、主水路と、前記主水路の上部から外面に達するスリット状の開口路とを有し、道路の側部に沿って延びるようにして地中に敷設された水路構造物を含む補修水路構造物であって、
前記主水路の内部に一列に収容された複数の更生管と、
前記主水路の内周面と前記更生管の外周面との間に充填された被覆層と、
を備え、前記更生管の上側部には、前記開口路に連なるスリットが形成されていることを特徴とする。
被覆層によって主水路の内周面を防食できる。更に被覆層を更生管によって覆うことで一層確実に防食できる。環状の更生管によって、蓋が不要な水路構造を保つことができる。路面水は、開口路からスリットを通して、更生管内に導くことができる。更生管の内部が、補修後の新たな主水路となる。 The structure of the present invention includes a main waterway and a waterway structure that is laid in the ground so as to extend along the side of the road, having a slit-shaped opening that reaches the outer surface from the upper part of the main waterway. A repair canal structure,
A plurality of rehabilitation pipes housed in a line inside the main waterway,
A coating layer filled between the inner peripheral surface of the main water channel and the outer peripheral surface of the rehabilitation pipe,
And a slit connected to the opening path is formed in an upper portion of the rehabilitation pipe.
The coating layer can protect the inner surface of the main waterway from corrosion. Further, by covering the coating layer with the rehabilitation pipe, the corrosion can be more surely prevented. The annular rehabilitation pipe can maintain a waterway structure that does not require a lid. Road surface water can be introduced into the rehabilitation pipe from the open passage through the slit. The inside of the rehabilitation pipe will be the new main canal after repair.

前記更生管が、アニーリング管材によって構成されていることが好ましい。これによって、スリット形成による更生管の縮径を防止できる。 It is preferable that the rehabilitation pipe is made of an annealing pipe material. This can prevent the diameter reduction of the rehabilitation pipe due to the slit formation.

本発明によれば、高速道路その他の道路における円形水路等の主水路とスリット状開口路とを有する老朽化した水路構造物を、蓋が不要な構造を保ちながら補修することができる。 According to the present invention, it is possible to repair an aged waterway structure having a main waterway such as a circular waterway and a slit-shaped opening in a highway and other roads while maintaining a structure that does not require a lid.

図１は、本発明の一実施形態に係る高速道路の補修水路構造物を示し、図２（ｂ）のＩ−Ｉ線に沿う正面断面図である。FIG. 1 is a front sectional view taken along the line I-I of FIG. 2B, showing a repair waterway structure for an expressway according to an embodiment of the present invention. 図２（ａ）は、水路構造物の補修後（前記補修水路構造物を構築後）の高速道路の平面図である。図２（ｂ）は、同図（ａ）のＩＩｂ−ＩＩｂ線に沿う、前記高速道路の側面断面図である。FIG. 2A is a plan view of the expressway after repairing the waterway structure (after constructing the repairing waterway structure). FIG. 2B is a side sectional view of the expressway taken along the line IIb-IIb in FIG. 図３は、前記補修水路構造物の枠部材の斜視図である。FIG. 3 is a perspective view of a frame member of the repair waterway structure. 図４（ａ）は、前記水路構造物の補修方法における更生管挿入開始時の状態を示す、前記高速道路の平面図である。図４（ｂ）は、同図（ａ）のＩＶｂ−ＩＶｂ線に沿う、前記高速道路の側面断面図である。FIG. 4A is a plan view of the expressway showing a state at the time of starting the insertion of a rehabilitation pipe in the method for repairing a waterway structure. FIG. 4B is a side sectional view of the expressway taken along the line IVb-IVb in FIG. 図５は、図４（ｂ）のＶ−Ｖ線に沿う、前記水路構造物の正面断面図である。FIG. 5 is a front sectional view of the water channel structure taken along the line VV of FIG. 4( b ). 図６（ａ）は、前記水路構造物の補修方法における更生管の移送工程の初期段階を示す、前記高速道路の平面図である。図６（ｂ）は、同図（ａ）のＶＩｂ−ＶＩｂ線に沿う、前記高速道路の側面断面図である。図６（ｃ）は、前記更生管を目標の桝間区間まで移送させた状態を示す、前記高速道路の側面断面図である。FIG. 6A is a plan view of the expressway showing an initial stage of a transfer process of a rehabilitating pipe in the method for repairing a waterway structure. FIG. 6B is a side sectional view of the expressway taken along the line VIb-VIb in FIG. FIG. 6C is a side sectional view of the expressway showing a state in which the rehabilitation pipe has been transferred to a target section of the span. 図７（ａ）は、前記水路構造物の補修方法における枠部材の収容工程の途中段階を示す、前記高速道路の側面断面図である。図７（ｂ）は、前記枠部材の収容工程の終了段階を示す、前記高速道路の側面断面図である。FIG. 7A is a side cross-sectional view of the highway showing an intermediate stage of a frame member accommodating step in the method for repairing a waterway structure. FIG. 7B is a side cross-sectional view of the highway showing the end stage of the step of accommodating the frame member. 図８は、図７（ｂ）のＶＩＩＩ−ＶＩＩＩ線に沿う、前記水路構造物の正面断面図である。FIG. 8 is a front sectional view of the water channel structure taken along the line VIII-VIII in FIG. 7B. 図９は、図８のＩＸ−ＩＸ線に沿う、前記水路構造物の側面断面図である。FIG. 9 is a side sectional view of the water channel structure taken along the line IX-IX of FIG. 8. 図１０（ａ）は、前記水路構造物の補修方法における端口封止工程を示す、前記高速道路の側面断面図である。図１０（ｂ）は、同図（ａ）の円部Ｘｂを拡大して示す側面断面図である。FIG. 10A is a side cross-sectional view of the expressway showing an end opening sealing step in the method for repairing the water channel structure. FIG. 10B is an enlarged side cross-sectional view showing the circular portion Xb of FIG. 図１１は、図１０（ａ）のＸＩ−ＸＩ線に沿う、前記水路構造物の正面断面図である。FIG. 11 is a front sectional view of the water channel structure taken along the line XI-XI of FIG. 図１２（ａ）は、前記水路構造物の補修方法における無収縮モルタル充填工程を示す、前記高速道路の側面断面図である。図１２（ｂ）は、同図（ａ）の円部ＸＩＩｂを拡大して示す側面断面図である。FIG. 12A is a side sectional view of the expressway showing a non-shrink mortar filling step in the method for repairing a waterway structure. FIG. 12B is a side sectional view showing, in an enlarged manner, the circular portion XIIb in FIG. 図１３は、図１２（ａ）のＸＩＩＩ−ＸＩＩＩ線に沿う、前記水路構造物の正面断面図である。FIG. 13 is a front sectional view of the water channel structure taken along line XIII-XIII in FIG.

以下、本発明の一実施形態を図面にしたがって説明する。
図１及び図２は、高速道路１（道路）を示したものである。図２（ａ）に示すように、高速道路１の本線１ａの側方には、数百メートル（例えば５００メートル）置きに非常駐車帯１ｂが設けられている。本線１ａ及び非常駐車帯１ｂの側部には、縁石１ｅ（図１）に沿って補修対象の既設水路構造物１０（側溝）が設けられている。
なお、図２等においては、縁石１ｅの図示は省略されている。 An embodiment of the present invention will be described below with reference to the drawings.
1 and 2 show a highway 1 (road). As shown in FIG. 2A, emergency parking zones 1b are provided at intervals of several hundred meters (for example, 500 meters) beside the main line 1a of the highway 1. The existing waterway structure 10 (side gutter) to be repaired is provided along the curb 1e (FIG. 1) on the sides of the main line 1a and the emergency parking zone 1b.
Note that the curb 1e is not shown in FIG. 2 and the like.

図２に示すように、既設水路構造物１０は、鉄筋コンクリートにて構成され、高速道路１の側部に沿って延びるようにして地中に敷設されている。水路構造物１０は、本線１ａに沿う本線水路部１０ａと、非常駐車帯１ｂの縁部に沿う駐車帯水路部１０ｂとを有している。 As shown in FIG. 2, the existing waterway structure 10 is made of reinforced concrete and is laid in the ground so as to extend along the side portion of the highway 1. The waterway structure 10 has a mainline waterway portion 10a along the mainline 1a and a parking belt waterway portion 10b along the edge of the emergency parking zone 1b.

図１及び図５に示すように、水路構造物１０の内部には、主水路１１と、開口路１３が形成されている。主水路１１は、断面円形になっており、かつ水路構造物１０の全長にわたって延びている。 As shown in FIGS. 1 and 5, a main water channel 11 and an opening channel 13 are formed inside the water channel structure 10. The main water channel 11 has a circular cross section and extends over the entire length of the water channel structure 10.

開口路１３は、スリット状をなし、主水路１１の上部から水路構造物１０の上面（外面）に達するとともに、水路構造物１０の全長にわたって延びている。開口路１３の幅は、主水路１１の幅（直径）よりも小さい。 The opening channel 13 has a slit shape, reaches the upper surface (outer surface) of the water channel structure 10 from the upper portion of the main water channel 11, and extends over the entire length of the water channel structure 10. The width of the opening channel 13 is smaller than the width (diameter) of the main water channel 11.

なお、開口路１３は、補修によって水路構造物１０の新設時（図５の二点鎖線）よりも拡幅されている。
すなわち、図５の二点鎖線にて示すように、新設時における水路構造物１０の上部には、一対の開口路画成部１２，１２が互いに対峙するように形成されている。各開口路画成部１２は、概略四半円弧状になっている。これら開口路画成部１２，１２の対向面どうし間に幅狭のスリット１２ｓが形成されている。この幅狭スリット１２ｓが新設時の開口路１３である。その後、凍結融解剤等によって水路構造物１０における開口路画成部１２等の鉄筋が腐食して膨張し、コンクリートの剥落等が起き、老朽化が進む。
後述するように、補修に際して、開口路画成部１２における老朽化した部分が切除されることで、開口路１３が拡幅される。
以下、特に断らない限り、水路構造物１０は補修済みであるものとする。 The opening channel 13 is made wider by repairing than when the water channel structure 10 is newly installed (two-dot chain line in FIG. 5).
That is, as shown by the chain double-dashed line in FIG. 5, a pair of open channel defining portions 12, 12 are formed on the upper portion of the water channel structure 10 at the time of new installation so as to face each other. Each open path defining portion 12 has a substantially quarter-arc shape. A narrow slit 12s is formed between the facing surfaces of the opening path defining portions 12, 12. This narrow slit 12s is the opening path 13 when newly installed. After that, the freezing and thawing agent or the like corrodes and expands the reinforcing bars of the open channel defining portion 12 and the like in the water channel structure 10, causing the concrete to peel off and deteriorate.
As will be described later, when repairing, the aged portion of the opening path defining portion 12 is cut off to widen the opening path 13.
Hereinafter, unless otherwise specified, the water channel structure 10 is assumed to have been repaired.

図２に示すように、水路構造物１０には、数十メートル（例えば４０メートル）置きに桝１５が設けられている。桝１５は、平面視で数十ｃｍ（例えば５０ｃｍ）四方の鉄筋コンクリート製の縦穴構造になっている。桝１５の上端開口は、蓋１５ｄによって塞がれている。
本線水路部１０ａと駐車帯水路部１０ｂとの角部１０ｃには、１つの桝１５が配置されている。この角部１０ｃの桝１５を「発進用桝１５Ｃ」と称す。 As shown in FIG. 2, the water channel structure 10 is provided with pits 15 every tens of meters (for example, 40 meters). The basin 15 has a vertical hole structure made of reinforced concrete that is several tens cm (for example, 50 cm) square in plan view. The upper end opening of the grid 15 is closed by a lid 15d.
One basin 15 is arranged at a corner 10c between the main line waterway portion 10a and the parking sluice waterway portion 10b. The stile 15 of the corner portion 10c is referred to as "starting sill 15C".

図２（ａ）及び（ｂ）に示すように、本線１ａにおける隣接する２つの桝１５，１５どうし間の桝間区間Ｒ１５ごとに、補修水路構造物２が構築されている。図１に示すように、補修水路構造物２は、既設水路構造物１０と、更生管２０と、枠部材３０と、被覆層４０とによって構成されている。 As shown in FIG. 2 (a) and (b), each桝間interval R 15 between and if the two basins 15 and 15 adjacent in the main line 1a, repair waterway structure 2 is constructed. As shown in FIG. 1, the repair waterway structure 2 includes an existing waterway structure 10, a rehabilitation pipe 20, a frame member 30, and a coating layer 40.

図１及び図２に示すように、主水路１１の内部には、複数の更生管２０，２０…が一列に収容されている。各更生管２０の長さは、数メートル（例えば４メートル程度）である。数本〜十数本（例えば１０本）の更生管２０が一列に連なることで、１つの桝間区間Ｒ１５に対応する長さになっている。更生管２０の断面形状は、円形になっている。更生管２０の外直径は、主水路１１の内直径よりも少し小さい。更生管２０の頂部（上側部）にはスリット２３が形成されている。スリット２３は、更生管２０の全長にわたって延びている。スリット２３の幅は、前述した新設時の幅狭スリット１２ｓの幅とほぼ等しく、車両（二輪車含む）の車輪の幅以下である。 As shown in FIGS. 1 and 2, a plurality of rehabilitation pipes 20, 20... Are accommodated in a line inside the main waterway 11. The length of each rehabilitation pipe 20 is several meters (for example, about 4 meters). Several to more than ten (for example, 10) rehabilitation pipes 20 are arranged in a line to have a length corresponding to one span section R 15 . The cross-sectional shape of the rehabilitation pipe 20 is circular. The outer diameter of the rehabilitation pipe 20 is slightly smaller than the inner diameter of the main water channel 11. A slit 23 is formed at the top (upper side) of the rehabilitation pipe 20. The slit 23 extends over the entire length of the rehabilitation tube 20. The width of the slit 23 is substantially equal to the width of the narrow slit 12s at the time of new installation described above, and is equal to or less than the width of the wheels of the vehicle (including the two-wheeled vehicle).

更生管２０としては、例えばポリ塩化ビニル管が用いられているが、これに限定されるものではなく、強化プラスチック複合管（ＦＲＰＭ管）、鋼管、波付き管等であってもよい。更生管２０は、直管に限られず、スパイラル管であってもよい。複数の帯状板を環状に並べることで管状にしたものであってもよい。
好ましくは、更生管２０は、アニーリング処理されたアニーリング材によって構成されている。これによって、スリット２３の形成による縮径を防止できる。 As the rehabilitation pipe 20, for example, a polyvinyl chloride pipe is used, but the rehabilitation pipe 20 is not limited to this and may be a reinforced plastic composite pipe (FRPM pipe), a steel pipe, a corrugated pipe, or the like. The rehabilitation pipe 20 is not limited to the straight pipe, and may be a spiral pipe. It may be formed by arranging a plurality of strip-shaped plates annularly to form a tube.
Preferably, the rehabilitation pipe 20 is made of an annealing material that is annealed. This can prevent the diameter reduction due to the formation of the slit 23.

図１及び図２に示すように、開口路１３の内部には、複数の枠部材３０，３０…が収容されている。枠部材３０の材質は、例えばポリ塩化ビニル、ポリエチレン、ポリプロピレン等の樹脂であるが、これに限定されるものではなく、金属や木材等によって構成されていてもよい。 As shown in FIGS. 1 and 2, a plurality of frame members 30, 30... Are housed inside the opening 13. The material of the frame member 30 is, for example, a resin such as polyvinyl chloride, polyethylene, polypropylene, etc., but is not limited to this, and may be made of metal, wood, or the like.

図３に示すように、枠部材３０は、一対の側壁３１，３１と、一対の端壁３２，３２を有し、上下に開口された長方形の枠形状になっている。枠部材３０の長手方向（側壁３１の長手方向）が、更生管２０の管軸と平行に向けられている。各枠部材３０の長さは、各更生管２０の長さの数分の１〜十数分の１（図面では簡略化のために２分の１）である。好ましくは、枠部材３０の幅（側壁３１，３１どうし間の距離）は、前述した新設時の幅狭スリット１２ｓの幅とほぼ等しく、車両（二輪車含む）の車輪の幅以下である。 As shown in FIG. 3, the frame member 30 has a pair of side walls 31 and 31 and a pair of end walls 32 and 32, and has a rectangular frame shape that is opened vertically. The longitudinal direction of the frame member 30 (longitudinal direction of the side wall 31) is oriented parallel to the tube axis of the rehabilitation tube 20. The length of each frame member 30 is a fraction to one tenth of the length of each rehabilitation pipe 20 (one half for simplification in the drawing). Preferably, the width of the frame member 30 (the distance between the side walls 31 and 31) is substantially equal to the width of the narrow slit 12s at the time of the above-described new installation, and is equal to or less than the width of the wheels of the vehicle (including the two-wheeled vehicle).

なお、図８に示すように、初期状態の枠部材３０の底部には、底板３３が設けられている。底板３３によって枠部材３０の底部が塞がれている。施工段階において底板３３が切除（撤去）される。
図３及び図８に示すように、端壁３２の底縁部は、更生管２０の外周に合わせた円弧形状になっている。底板３３は、更生管２０の外周に合わせた円弧断面形状になっている。 As shown in FIG. 8, a bottom plate 33 is provided at the bottom of the frame member 30 in the initial state. The bottom plate 33 closes the bottom of the frame member 30. The bottom plate 33 is cut (removed) in the construction stage.
As shown in FIGS. 3 and 8, the bottom edge portion of the end wall 32 has an arc shape that matches the outer circumference of the rehabilitation pipe 20. The bottom plate 33 has an arc cross-sectional shape that matches the outer circumference of the rehabilitation pipe 20.

図３に示すように、各側壁３１の外側面には、複数のリブ３４，３４…が形成されている。リブ３４は、ウェブ板部３４ｗと、フランジ部３４ｆを有し、断面がＴ字状になっている。ウェブ板部３４ｗが、側壁３１の外面から開口路１３の内側面１３ａへ向けて突出されるとともに、上下に延びている。ウェブ板部３４ｗの突出端にフランジ部３４ｆが設けられている。フランジ部３４ｆは、ウェブ板部３４ｗと直交するとともに、上下に延びている。 As shown in FIG. 3, a plurality of ribs 34, 34... Are formed on the outer surface of each side wall 31. The rib 34 has a web plate portion 34w and a flange portion 34f, and has a T-shaped cross section. The web plate portion 34w protrudes from the outer surface of the side wall 31 toward the inner side surface 13a of the opening passage 13 and extends vertically. A flange portion 34f is provided on the protruding end of the web plate portion 34w. The flange portion 34f is orthogonal to the web plate portion 34w and extends vertically.

図２に示すように、複数の枠部材３０，３０…が、一列に並べられて既設水路構造物１０の開口路１３の内部に収容されている。隣接する枠部材３０の端壁３２，３２どうしが重ね合わされている（図９参照）。図１に示すように、各枠部材３０の側壁３１が、既設水路構造物１０の開口路１３の内面１３ａと対向している。側壁３１の底縁部は、更生管２０のスリット２３の縁部近くの部分に突き当てられている。枠部材３０の内部空間が、スリット２３を通して、更生管２０の内部空間と連なっている。 As shown in FIG. 2, the plurality of frame members 30, 30... Are arranged in a line and housed inside the opening channel 13 of the existing water channel structure 10. The end walls 32, 32 of the adjacent frame members 30 are overlapped with each other (see FIG. 9 ). As shown in FIG. 1, the side wall 31 of each frame member 30 faces the inner surface 13 a of the opening channel 13 of the existing water channel structure 10. The bottom edge of the side wall 31 is abutted against a portion near the edge of the slit 23 of the rehabilitation pipe 20. The internal space of the frame member 30 is connected to the internal space of the rehabilitation pipe 20 through the slit 23.

図１に示すように、補修水路構造物２における被覆層４０は、無収縮モルタルにて構成されている。被覆層４０は、主水路被覆層４１と、開口路被覆層４３を含む。主水路被覆層４１は、既設水路構造物１０の主水路１１の内周面と更生管２０の外周面との間の環状部１４に充填されている。開口路被覆層４３は、開口路１３の内面１３ａと枠部材３０の側壁３１との間に充填されている。枠部材３０のリブ３４が、開口路被覆層４３内に埋まっている。 As shown in FIG. 1, the coating layer 40 in the repair water channel structure 2 is made of non-shrink mortar. The coating layer 40 includes a main waterway coating layer 41 and an open channel coating layer 43. The main waterway covering layer 41 is filled in the annular portion 14 between the inner peripheral surface of the main waterway 11 of the existing waterway structure 10 and the outer peripheral surface of the rehabilitation pipe 20. The opening passage covering layer 43 is filled between the inner surface 13 a of the opening passage 13 and the side wall 31 of the frame member 30. The ribs 34 of the frame member 30 are embedded in the open passage covering layer 43.

図１０及び図１１に示すように、補修水路構造物２の両端部には、端口封止材４２が設けられている。端口封止材４２は、急結モルタルにて構成されており、主水路１１の内周面と更生管２０の外周面との間に充填されるとともに、及び開口路１３の内面１３ａと枠部材３０の側壁３１との間にも充填されている。 As shown in FIGS. 10 and 11, end opening sealing members 42 are provided at both ends of the repair water channel structure 2. The end-port sealing material 42 is made of quick-setting mortar, and is filled between the inner peripheral surface of the main water channel 11 and the outer peripheral surface of the rehabilitation pipe 20, and the inner surface 13a of the opening channel 13 and the frame member. It is also filled between the side wall 31 of 30.

老朽化した既設水路構造物１０を補修して、補修水路構造物２を構築する方法を説明する。
＜開口路処理＞
図５の二点鎖線にて示すように、先ず、開口路画成部１２の腐食部分を切除する。これによって、図５の実線に示すように、新設時よりも幅広の開口路１３が形成される。開口路１３の幅は、枠部材３０の幅ひいてはスリット２３の幅よりも大きくする。 A method of repairing the existing waterway structure 10 that has deteriorated and constructing the repaired waterway structure 2 will be described.
<Opening path treatment>
As indicated by the chain double-dashed line in FIG. 5, first, the corroded portion of the opening path defining portion 12 is cut off. As a result, as shown by the solid line in FIG. 5, the opening path 13 having a wider width than that when newly installed is formed. The width of the opening 13 is made larger than the width of the frame member 30 and thus the width of the slit 23.

＜管発進溝開削＞
図４に示すように、前記開口路画成部１２の処理と前後して、高速道路１の各非常駐車帯１ｂの本線１ａからの出入り部に管発進溝１ｆを開削する。管発進溝１ｆは、本線水路部１０ａの延長線に沿って形成する。管発進溝１ｆの前記延長線に沿う長さは、１本の更生管２０よりも大きくする。管発進溝１ｆの深さは、主水路１１の底部よりも深くする。管発進溝１ｆの端部は、発進用桝１５Ｃに達するようにする。 <Opening of tube starting groove>
As shown in FIG. 4, before and after the processing of the opening road defining portion 12, the tube starting groove 1f is cut into and out of the entrance and exit of the emergency parking zone 1b of the expressway 1 from the main line 1a. The tube starting groove 1f is formed along the extension line of the main waterway portion 10a. The length of the tube starting groove 1f along the extension line is set larger than that of the single rehabilitation tube 20. The depth of the tube starting groove 1f is made deeper than the bottom of the main water channel 11. The end of the tube starting groove 1f reaches the starting rod 15C.

＜本線水路部１０ａとの連通＞
発進用桝１５Ｃにおける管発進溝１ｆを向く壁１５ａ（本線水路部１０ａと駐車帯水路部１０ｂとの角部１０ｃの壁）には、孔１５ｅを貫通形成する。これによって、管発進溝１ｆの端部が、貫通孔１５ｅを介して発進用桝１５Ｃの内部と連通し、更には本線水路部１０ａの主水路１１と一直線に連なる。 <Communication with main line waterway 10a>
A hole 15e is formed through the wall 15a (the wall of the corner 10c between the main waterway portion 10a and the parking sluice channel portion 10b) facing the tube starting groove 1f in the starting rod 15C. As a result, the end of the tube starting groove 1f communicates with the inside of the starting rod 15C through the through hole 15e, and is further in line with the main water passage 11 of the main water passage 10a.

＜ウインチ設置＞
図６（ｂ）に示すように、高速道路１の側部における２つの非常駐車帯１ｂ，１ｂの中間地点には、ウインチ５（更生管移送手段）を設置する。ウインチ５のワイヤロープ５ｗを本線水路部１０ａに挿し入れ、管発進溝１ｆまで伸ばす。 <Winch installation>
As shown in FIG. 6B, a winch 5 (rehabilitation pipe transfer means) is installed at an intermediate point between the two emergency parking zones 1b, 1b on the side of the highway 1. The wire rope 5w of the winch 5 is inserted into the main line water channel portion 10a and extended to the tube starting groove 1f.

＜更生管挿入＞
図６（ａ）に示すように、更生管２０を１本ずつ管発進溝１ｆに挿入する。更に、この更生管２０を、貫通孔１５ｅ及び発進用桝１５Ｃ内を経て、本線水路部１０ａの主水路１１に挿入する。
１つの桝間区間Ｒ１５に対応する本数（例えば１０本）の更生管２０，２０…を、順次主水路１１に挿入して、これら更生管２０，２０…を主水路１１内において一列に並べる。
ワイヤロープ５ｗを各更生管２０の内部に通す。最後尾の更生管２０にワイヤロープ５ｗの先端部を繋着する。 <Insertion of rehabilitation pipe>
As shown in FIG. 6A, the rehabilitation pipes 20 are inserted one by one into the pipe starting groove 1f. Further, the rehabilitation pipe 20 is inserted into the main water passage 11 of the main water passage 10a through the through hole 15e and the starting rod 15C.
The number (for example, 10) of rehabilitation pipes 20, 20,... Corresponding to one span section R 15 is sequentially inserted into the main waterway 11, and these rehabilitation pipes 20, 20,... Are arranged in a line in the main waterway 11. ..
The wire rope 5w is passed through each rehabilitation pipe 20. The tip of the wire rope 5w is attached to the rearmost rehabilitation pipe 20.

＜更生管移送（態様１）＞
そして、図６（ｃ）に示すように、ウインチ５によってワイヤロープ５ｗを巻き取ることで、一列をなす更生管２０，２０…を押し込むようにして、目標の桝間区間Ｒ１５まで移送させる。 <Transfer of rehabilitation pipe (Aspect 1)>
Then, as shown in FIG. 6 (c), the winch 5 by winding the wire rope 5w, so as to push the rehabilitating pipe 20, 20 forming a single row, is transferred to桝間interval R 15 goals.

＜更生管連結＞
隣接する更生管２０，２０どうしは、粘着テープ（図示省略）によって連結する。粘着テープを、これら更生管２０，２０の端部の外周面間に跨るように巻き付ける。
粘着テープによる連結作業は、管発進溝１ｆ内において、後続の更生管２０を差し込む度に行ってもよく、途中の桝１５内又は目標の桝間区間Ｒ１５の桝１５内において、更生管２０，２０どうしの境目がその桝１５内を通過する度に行ってもよい。 <Rehabilitation pipe connection>
Adjacent rehabilitation pipes 20 and 20 are connected by an adhesive tape (not shown). The adhesive tape is wound so as to straddle the outer peripheral surfaces of the end portions of the rehabilitation pipes 20, 20.
The joining operation by pressure-sensitive adhesive tape, in the tube starting groove 1f, may be performed each time inserting the subsequent rehabilitating pipe 20, within Masuichi 15 of桝間interval R 15 in 15 or target Masuichi of course, the rehabilitating pipe 20 , 20 may be performed every time the boundary between the 20 passes through the sill 15.

＜更生管移送（態様２）＞
なお、更生管２０，２０…どうしを粘着テープで連結するとともに、ワイヤロープ５ｗを先頭の更生管２０に繋ぎ、一列をなす更生管２０，２０…を引き込むようにして、目標の桝間区間Ｒ１５まで移送させてもよい。 <Transfer of rehabilitation pipe (Aspect 2)>
The rehabilitation pipes 20, 20,... Are connected to each other with an adhesive tape, the wire rope 5w is connected to the front rehabilitation pipe 20, and the line of rehabilitation pipes 20, 20,... You may transfer up to 15 .

＜更生管移送（態様３）＞
ウインチ５を用いることなく、人力で、後続の更生管２０を先行の更生管２０に突き当てて押し込むことで、更生管２０，２０…を目標の桝間区間Ｒ１５まで移送させてもよい。先頭の更生管２０にはコロを設けることで、押し込み易くしてもよい。 <Transfer of rehabilitation pipe (Aspect 3)>
It is also possible to transfer the rehabilitation pipes 20, 20,... To the target rod section R 15 by manually pushing the subsequent rehabilitation pipe 20 against the preceding rehabilitation pipe 20 without using the winch 5 and pushing it. The leading rehabilitation tube 20 may be provided with a roller to facilitate the pushing.

＜枠部材設置＞
図７（ａ）に示すように、目標の桝間区間Ｒ１５まで更生管２０，２０…を移送させた後、その桝間区間Ｒ１５の開口路１３に複数の枠部材３０，３０…を並べて収容する。隣接する２つの枠部材３０，３０の端壁３２，３２どうしを互いに重ね合わせる。
＜更生管２０と枠部材３０の接合＞
更に、各枠部材３０の底板３３を更生管２０の頂部（上側部）にビスで接合する。ビスに代えて、接着剤等の他の接合手段を用いてもよい。 <Frame member installation>
As shown in FIG. 7 (a), after they were transported rehabilitating pipe 20, 20 ... until桝間interval R 15 targets, a plurality of frame members 30, 30 to the opening slit 13 of the桝間interval R 15 Store side by side. The end walls 32, 32 of two adjacent frame members 30, 30 are overlapped with each other.
<Joining the rehabilitation pipe 20 and the frame member 30>
Further, the bottom plate 33 of each frame member 30 is joined to the top portion (upper portion) of the rehabilitation pipe 20 with a screw. Instead of screws, other joining means such as an adhesive may be used.

＜吊り金具５０＞
ここで、図８及び図９に示すように、吊り金具５０（吊り手段）を用意する。吊り金具５０は、一対の挟持板５１，５１と、吊り上げ手段５２と、被支持部５３と、押え板５４を有している。 <Hanging bracket 50>
Here, as shown in FIG. 8 and FIG. 9, suspending metal fittings 50 (suspending means) are prepared. The hanging metal fitting 50 has a pair of holding plates 51, 51, a lifting means 52, a supported portion 53, and a holding plate 54.

＜更生管２０及び枠部材３０の吊り上げ＞
吊り金具５０を、所定の２つの隣接する枠部材３０，３０の端壁３２，３２上を跨ぐように設置する。この吊り金具５０の一対の挟持板５１，５１によって、前記隣接する枠部材３０，３０の端壁３２，３２を挟み付けて固定する。また、被支持部５３を縁石１ｅに係止させる。さらに、押え板５４を開口路１３の上端開口に被せる。
そして、吊り上げ手段５２を操作することによって、挟持板５１を上昇させる。これによって、図７（ｂ）及び図８に示すように、枠部材３０及び更生管２０を吊り上げることができる。この結果、更生管２０の底部を浮かせて、更生管２０と主水路１１の底部との間に隙間１４ｂを形成できる。吊り上げ量は、例えば１０ｍｍ程度である。
なお、図７（ｂ）においては、吊り金具５０の図示が省略されている。 <Suspension of rehabilitation pipe 20 and frame member 30>
The hanging metal fitting 50 is installed so as to straddle over the end walls 32, 32 of two predetermined adjacent frame members 30, 30. The end plates 32, 32 of the adjacent frame members 30, 30 are sandwiched and fixed by the pair of sandwiching plates 51, 51 of the hanging fitting 50. Further, the supported portion 53 is locked to the curb 1e. Further, the pressing plate 54 is put on the upper end opening of the opening passage 13.
Then, by operating the lifting means 52, the holding plate 51 is raised. Thereby, as shown in Drawing 7 (b) and Drawing 8, frame member 30 and rehabilitation pipe 20 can be lifted. As a result, the bottom of the rehabilitation pipe 20 can be floated, and the gap 14b can be formed between the rehabilitation pipe 20 and the bottom of the main water channel 11. The lifting amount is, for example, about 10 mm.
In addition, in FIG.7(b), illustration of the suspension metal fitting 50 is abbreviate|omitted.

＜端部封止＞
次に、図１０及び図１１に示すように、桝間区間Ｒ１５の両端部における環状部１４の端部開口を、急速モルタルからなる端口封止材４２によって封止する。この封止作業は、桝間区間Ｒ１５の両端部の桝１５から行なうことができる。
なお、先に端口封止材４２による端部封止を行なった後、前述した枠部材３０の設置・接合、及び吊り上げを行なってもよい。この場合、最先端及び最後尾の更生管２０，２０の端部を少し持ち上げることで、これら更生管２０，２０の端部の底部と主水路１１の底部との間に隙間を形成した状態で、端口封止材４２を詰める。 <End sealing>
Next, as shown in FIGS. 10 and 11, the end openings of the annular portion 14 at both ends of the interstitial section R 15 are sealed with an end opening sealing material 42 made of quick mortar. This sealing work can be performed from the rods 15 at both end portions of the rod section R15.
In addition, after the end portion is sealed with the end sealing material 42, the frame member 30 may be installed/joined and lifted. In this case, by slightly lifting the ends of the most advanced and rearmost rehabilitation pipes 20, 20, with a gap formed between the bottom of the end of these rehabilitation pipes 20, 20 and the bottom of the main waterway 11. Then, the end sealing material 42 is filled.

＜モルタル充填＞
環状部１４（主水路１１の内周面と更生管２０の外周面との間）には、栗石や砕石（図示省略）を投入しておく。投入は、枠部材３０の側壁３１と開口路１３の内面１３ａとの間から行なうことができる。
そして、図１２及び図１３に示すように、桝間区間Ｒ１５の両端の端口封止材４２，４２の硬化後、これら端口封止材４２，４２の間の環状部１４の全域に被覆層４０となるべき無収縮モルタルを注入する。注入は、枠部材３０の側壁３１と開口路１３の内面１３ａとの間から行なうことができる。予め、端口封止材４２によって環状部１４の端部を封止しておくことで、そこから無収縮モルタルが漏れないようにすることができる。更には、側壁３１と内面１３ａとの間にも無収縮モルタルを充填する。このとき、押え板５４（図８参照）によって枠部材３０を上から押さえることで、枠部材３０及び更生管２０の浮き上がりを防止できる。
無収縮モルタルが、枠部材３０の上端部近く、ひいては開口路１３の上端部近くまで達したら充填を終える。 <Mortar filling>
Chest stones and crushed stones (not shown) are put in the annular portion 14 (between the inner peripheral surface of the main waterway 11 and the outer peripheral surface of the rehabilitation pipe 20). The charging can be performed between the side wall 31 of the frame member 30 and the inner surface 13a of the opening passage 13.
Then, as shown in FIG. 12 and FIG. 13, after the end opening sealing materials 42, 42 at both ends of the interstitial section R 15 are cured, the coating layer is formed on the entire annular portion 14 between the end opening sealing materials 42, 42. Inject non-shrink mortar to be 40. The injection can be performed between the side wall 31 of the frame member 30 and the inner surface 13a of the opening passage 13. By sealing the end of the annular portion 14 with the end sealing material 42 in advance, it is possible to prevent the non-shrink mortar from leaking from the end. Furthermore, the non-shrink mortar is also filled between the side wall 31 and the inner surface 13a. At this time, the frame member 30 and the rehabilitation pipe 20 can be prevented from being lifted by pressing the frame member 30 from above by the pressing plate 54 (see FIG. 8).
When the non-shrink mortar reaches near the upper end of the frame member 30 and thus near the upper end of the open passage 13, the filling is finished.

＜モルタル硬化＞
この無収縮モルタルが硬化することで、被覆層４０（４１，４３）となる。
主水路被覆層４１によって主水路１１の内周面が被覆される。これによって、主水路１１の内周面を防食できる。更に、主水路被覆層４１を更生管２０で覆うことによって、主水路１１の内周面を一層確実に防食できる。
開口路被覆層４３によって開口路１３の内面１３ａが被覆される。これによって、内面１３ａを防食できる。更に、開口路被覆層４３を枠部材３０で覆うことによって、内面１３ａを一層確実に防食できる。また、枠部材３０のリブ３４が開口路被覆層４３内に埋まる。これによって、開口路被覆層４３と枠部材３０との密着強度を高めることができる。 <Mortar hardening>
The coating layer 40 (41, 43) is formed by hardening the non-shrink mortar.
The inner circumferential surface of the main water channel 11 is covered with the main water channel covering layer 41. Thereby, the inner peripheral surface of the main waterway 11 can be protected against corrosion. Furthermore, by covering the main waterway covering layer 41 with the rehabilitation pipe 20, the inner peripheral surface of the main waterway 11 can be more surely protected against corrosion.
The inner surface 13a of the opening 13 is covered with the opening covering layer 43. Thereby, the inner surface 13a can be protected from corrosion. Furthermore, by covering the opening passage covering layer 43 with the frame member 30, the inner surface 13a can be more surely protected against corrosion. Further, the ribs 34 of the frame member 30 are embedded in the open passage covering layer 43. As a result, the adhesion strength between the opening cover layer 43 and the frame member 30 can be increased.

＜底板３３及び更生管２０頂部の切除＞
図１に示すように、無収縮モルタルの硬化後、枠部材３０の底板３３及び更生管２０の頂部（上側部）をジグソー等で切断して撤去する。これによって、枠部材３０の底部が開放される。かつ、更生管２０の頂部にスリット２３が形成される。この結果、更生管２０の内部空間が、枠部材３０の内部空間と連通され、更には枠部材３０の内部空間を介して外部と連通される。更生管２０をアニーリング処理しておくことで、スリット２３の形成に伴う更生管２０の縮径を防止できる。
なお、各枠部材３０の端壁３２をも切除することで、一列をなす複数の枠部材３０，３０…の内部空間どうしを連通させてもよい。
好ましくは、スリット２３の形成後、枠部材３０の上端部まで無収縮モルタルを擦り付け、開口路被覆層４３が水路構造物１０の上面と面一になるようにする。
これによって、１つの桝間区間Ｒ１５に補修水路構造物２が構築される。 <Removal of bottom plate 33 and top of rehabilitation tube 20>
As shown in FIG. 1, after hardening the non-shrink mortar, the bottom plate 33 of the frame member 30 and the top (upper part) of the rehabilitation pipe 20 are cut and removed with a jigsaw or the like. As a result, the bottom of the frame member 30 is opened. In addition, the slit 23 is formed at the top of the rehabilitation pipe 20. As a result, the internal space of the rehabilitation pipe 20 communicates with the internal space of the frame member 30, and further communicates with the outside through the internal space of the frame member 30. By annealing the rehabilitation pipe 20 in advance, it is possible to prevent the diameter reduction of the rehabilitation pipe 20 due to the formation of the slit 23.
The end walls 32 of each frame member 30 may also be cut off so that the inner spaces of the plurality of frame members 30, 30... Forming a row communicate with each other.
Preferably, after forming the slits 23, non-shrinkage mortar is rubbed to the upper end of the frame member 30 so that the opening channel covering layer 43 is flush with the upper surface of the water channel structure 10.
As a result, the repair waterway structure 2 is constructed in one span section R 15 .

同様にして、他の桝間区間Ｒ１５についても補修水路構造物２を構築する。
なお、補修の順番は、２つの非常駐車帯１ｂ，１ｂ間のちょうど中間部の桝間区間Ｒ１５から開始し、順次、両隣の桝間区間Ｒ１５へ移行することが好ましい。図４に示すように、前記２つの非常駐車帯１ｂ，１ｂにはそれぞれ管発進溝１ｆを設け、到達目標の桝間区間Ｒ１５に近い側の管発進溝１ｆからその桝間区間Ｒ１５へ向けて更生管２０を挿入することが好ましい。
図２に示すように、非常駐車帯１ｂ，１ｂ間のすべての桝間区間Ｒ１５について補修が終了したら、貫通孔１５ｅを塞ぎ、かつ管発進溝１ｆを埋め戻す。
このようにして、高速道路１における老朽化した水路構造物１０を補修することができる。老朽化した既設水路構造物１０を壊して新たに水路を作り直す必要がないため、工事作業の領域は小さくてすみ、道路を封鎖する必要はない。 Similarly, the repair waterway structure 2 is constructed for the other section R 15 between the columns.
In addition, it is preferable that the order of repairs starts from the intermediate section R 15 between the two emergency parking zones 1b and 1b, and sequentially shifts to the adjacent sections R 15 on both sides. As shown in FIG. 4, the two very parking zone 1b, respectively provided tube start groove 1f to 1b, from the side of the tube starting groove 1f near桝間interval R 15 of goals to the桝間interval R 15 It is preferable to insert the rehabilitation pipe 20 toward the end.
As shown in FIG. 2, when the repair is completed for all the section R 15 between the emergency parking zones 1b, 1b, the through hole 15e is closed and the pipe starting groove 1f is backfilled.
In this way, the aged waterway structure 10 on the highway 1 can be repaired. Since it is not necessary to destroy the existing waterway structure 10 that has deteriorated and recreate a new waterway, the area of construction work can be small and it is not necessary to block the road.

補修水路構造物２においては、更生管２０の内部空間が、補修後の主水路となる。枠部材３０の内部空間が、補修後の開口路となる。路面水は、枠部材３０の内部空間からスリット２３を通して、更生管２０の内部空間へ導かれる。環状の更生管２０によって通水断面を確保できる。
枠部材３０の幅及び更生管２０のスリット２３の幅は、新設時の水路構造物１０の幅狭スリット１２ｓの幅と同程度であり、枠部材３０の上端部に蓋をする必要がない。ひいては、更生管２０のスリット２３の上方に蓋をする必要がない。したがって、補修水路構造物２においても、補修前の水路構造物１０と同様に蓋が不要な構造を保つことができる。 In the repair waterway structure 2, the internal space of the rehabilitation pipe 20 serves as the main waterway after repair. The internal space of the frame member 30 serves as an opening path after repair. Road surface water is guided from the internal space of the frame member 30 to the internal space of the rehabilitation pipe 20 through the slit 23. The annular rehabilitation pipe 20 can secure a cross section of water flow.
The width of the frame member 30 and the width of the slit 23 of the rehabilitation pipe 20 are substantially the same as the width of the narrow slit 12s of the water channel structure 10 at the time of new installation, and it is not necessary to cover the upper end of the frame member 30. Consequently, it is not necessary to cover the slit 23 of the rehabilitation tube 20 with a lid. Therefore, also in the repair waterway structure 2, it is possible to maintain the structure in which the lid is unnecessary, as in the waterway structure 10 before repair.

本発明は、上記実施形態に限定されるものではなく、その精神を逸脱しない範囲において種々の改変をなすことができる。
例えば、管発進溝１ｆを、非常駐車帯１ｂの本線１ａからの出入り部に開削するのではなく、本線水路部１０ａ上に直接的に管発進溝１ｆを開削してもよい。
更生管２０が、段ボール紙等の非耐久材料で構成されていてもよい。また、更生管２０が、帯状の樹脂ライニング板をらせん状に巻きつつ接合してできた管であってもよい。
更生管２０が、被覆層４０の充填、硬化後に撤去可能であってもよい。
枠部材３０が、開口路被覆層４３の硬化後に撤去可能であってもよい。枠部材３０が、撤去可能な木製であってもよい。補修水路構造物２が枠部材３０を含んでいなくてもよい。
主水路１１の断面形状は、円形に限られず、楕円形、変形円形、四角形、その他種々の形状であってもよい。
被覆層４０（４１，４３）の材質は、無収縮モルタルに限られず、セメントミルク、樹脂材料等でもよい。
本実施形態では、本線水路部１０ａを補修しているが、駐車帯水路部１０ｂをも同様にして補修してもよい。
本発明の補修方法及び補修構造は、高速道路１に限られず、一般道路や自転車専用道路等の種々の道路の側溝の補修にも適用できる。 The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit thereof.
For example, the pipe starting groove 1f may be directly cut on the main waterway portion 10a, instead of being cut on the entrance/exit portion of the emergency parking zone 1b from the main line 1a.
The rehabilitation pipe 20 may be made of a non-durable material such as corrugated cardboard. The rehabilitation pipe 20 may be a pipe formed by spirally winding and joining a band-shaped resin lining plate.
The rehabilitation pipe 20 may be removable after the covering layer 40 is filled and cured.
The frame member 30 may be removable after the opening passage coating layer 43 is cured. The frame member 30 may be removable wooden. The repair water channel structure 2 may not include the frame member 30.
The cross-sectional shape of the main water channel 11 is not limited to a circular shape, and may be an elliptical shape, a modified circular shape, a quadrangular shape, or various other shapes.
The material of the coating layer 40 (41, 43) is not limited to non-shrink mortar, but may be cement milk, resin material, or the like.
In the present embodiment, the main line water channel portion 10a is repaired, but the parking liquor channel portion 10b may be repaired in the same manner.
The repairing method and the repairing structure of the present invention are not limited to the expressway 1, but can be applied to repairing the gutters of various roads such as general roads and bicycle-only roads.

本発明は、例えば高速道路の老朽化した水路構造物の補修に適用可能である。 INDUSTRIAL APPLICABILITY The present invention is applicable to, for example, repairing aged waterway structures on expressways.

１ 高速道路（道路）
１ａ 本線
１ｂ 非常駐車帯
１ｆ 管発進溝
２ 補修水路構造物
１０ 水路構造物
１０ａ 本線水路部
１０ｂ 駐車帯水路部
１０ｃ 角部
１１ 主水路
１３ 開口路
１４ 環状部
１５ａ 壁
１５ｅ 貫通孔
２０ 更生管
２３ スリット
４０ 被覆層
４１ 主水路被覆層 1 highway (road)
1a Main line 1b Emergency parking zone 1f Pipe start groove 2 Repair channel structure 10 Water channel structure 10a Main channel channel 10b Parking channel channel 10c Corner 11 Main channel 13 Open channel 14 Annular part 15a Wall 15e Through hole 20 Rehabilitation pipe 23 Slit 40 coating layer 41 main waterway coating layer

Claims (5)

主水路と、前記主水路の上部から外面に達するスリット状の開口路とを有し、道路の側部に沿って延びるようにして地中に敷設された水路構造物を補修する方法であって、
前記道路に前記主水路と一直線に連なる管発進溝を開削し、
複数の更生管を１つずつ前記管発進溝から前記主水路に挿入することによって、前記複数の更生管を一列に連ねて前記主水路に収容し、前記開口路には、前記開口路の対向する２つの内面とそれぞれ対面されるとともに前記更生管の管軸と平行に延びる一対の側壁を有する枠部材を収容し、
前記主水路の内周面と前記更生管との間の環状部における長手方向の端部開口を端口封止材によって封止し、
前記封止後、前記開口路の上端部から前記開口路の内面と前記側壁との間を介して、前記端部開口を除く前記環状部の全域に被覆層を充填し、
前記充填後、前記更生管の上側部に、前記一対の側壁の間の前記開口路と連なるスリットを形成することを特徴とする水路構造物の補修方法。 A method of repairing a waterway structure laid in the ground so as to have a main waterway and a slit-shaped opening that reaches the outer surface from the upper part of the main waterway, and which extends along the side of the road. ,
Opening and cutting a pipe starting groove in line with the main waterway on the road,
By inserting a plurality of rehabilitating pipes into the main water channel one by one from the pipe starting groove, the plurality of rehabilitating pipes are stored in the main water channel in a row, and the opening channel faces the opening channel. Accommodating a frame member having a pair of side walls facing the two inner surfaces and extending parallel to the tube axis of the rehabilitation tube,
The end opening in the longitudinal direction in the annular portion between the inner peripheral surface of the main water channel and the rehabilitation pipe is sealed with an end-port sealing material,
After the sealing, from the upper end of the opening path through the inner surface of the opening path and the side wall, the entire area of the annular portion except the end opening is filled with a coating layer,
After the filling, a repairing method for the water channel structure, characterized in that a slit that is continuous with the opening path between the pair of side walls is formed in an upper portion of the rehabilitation pipe. 主水路と、前記主水路の上部から外面に達するスリット状の開口路とを有し、道路の側部に沿って延びるようにして地中に敷設された水路構造物を補修する方法であって、
前記水路構造物が、前記道路の本線に沿う本線水路部と、前記本線の側方に間隔を置いて設けられた非常駐車帯の縁部に沿う駐車帯水路部とを有しており、前記本線水路部には複数の桝が間隔を置いて設けられ、隣接する桝どうし間に桝間区間が設定されており、
１の本線水路部を挟んで隣り合う２つの非常駐車帯の前記本線からの出入り部における前記１の本線水路部の延長線上に、前記１の本線水路部の主水路と一直線に連なる管発進溝を開削し、
かつ、前記１の本線水路部と前記２つの非常駐車帯の各々の駐車帯水路部との角部の壁を貫通させて、前記２つの非常駐車帯の各々の管発進溝を前記１の本線水路部と連通させ、
その後、複数の更生管を１つずつ、何れかの管発進溝から前記１の本線水路部の何れか１の桝間区間の主水路まで挿入することによって、前記複数の更生管を一列に連ねて前記１の桝間区間の主水路に収容する工程と、 前記１の桝間区間の主水路の内周面と前記更生管との間の環状部に被覆層を充填する工程と、前記充填後、前記１の桝間区間の更生管の上側部に前記開口路と連なるスリットを形成する工程とを含む補修水路構造物の構築作業を行い、
かつ前記構築作業を、前記２つの非常駐車帯どうし間の中間の桝間区間から開始して、順次両隣の桝間区間へ移行することを特徴とする水路構造物の補修方法。 A method of repairing a waterway structure laid in the ground so as to have a main waterway and a slit-shaped opening that reaches the outer surface from the upper part of the main waterway, and which extends along the side of the road. ,
The water channel structure comprises a main water passage portion along the main line of the road, has a parking zone waterway section along the edge of the emergency parking zone spaced apart laterally of the main line, the A plurality of pits are provided at intervals in the main line waterway section, and pit intervals are set between adjacent pits.
On the extension line of the main line waterway part of the one main line in the entrance and exit from the main line of the two emergency parking zones that are adjacent to each other with the main line waterway part of the one line, a pipe starting groove that is continuous with the main waterway of the one main line waterway part and digging the,
Further, the wall of the corner of the main line waterway part of the one and the parking zone waterway part of each of the two emergency parking zones is penetrated, and the pipe starting groove of each of the two emergency parking zones is inserted into the main line of the one side. Communicate with the waterway ,
After that, by inserting a plurality of rehabilitation pipes one by one from any one of the pipe starting grooves to the main waterway of any one of the slab sections of the one main line waterway section, the plurality of rehabilitation pipes are connected in a line. And storing it in the main water channel of the first interstitial section, filling the annular portion between the inner peripheral surface of the main water channel of the first interstitial section and the rehabilitation pipe with a coating layer, and After that, a construction work of a repair water channel structure including a step of forming a slit connected to the opening channel on the upper side of the rehabilitation pipe in the section 1 of the span,
Further , the method of repairing a waterway structure, characterized in that the construction work is started from an intermediate section between the two emergency parking zones, and sequentially moved to adjacent sections between the sections . 前記更生管が、アニーリング処理されていることを特徴とする請求項１又は２に記載の水路構造物の補修方法。 The method for repairing a waterway structure according to claim 1 or 2, wherein the rehabilitation pipe is annealed. 主水路と、前記主水路の上部から外面に達するスリット状の開口路とを有し、道路の側部に沿って延びるようにして地中に敷設された水路構造物を含む補修水路構造物であって、
前記主水路の内部に一列に収容された複数の更生管と、
前記開口路の対向する２つの内面とそれぞれ対面されるとともに前記更生管の管軸と平行に延びる一対の側壁を有する枠部材と、
前記主水路の内周面と前記更生管の外周面との間の環状部、及び前記開口路の内面と前記側壁との間における、長手方向の端部開口を除く全域に充填された被覆層と、
前記端部開口を封止する端口封止材と、
を備え、前記更生管の上側部には、前記一対の側壁の間の前記開口路に連なるスリットが形成されていることを特徴とする補修水路構造物。 A main canal and a repair canal structure including a canal structure laid in the ground so as to have a slit-shaped opening that reaches the outer surface from the upper part of the main canal and extend along the side of the road. There
A plurality of rehabilitation pipes housed in a line inside the main waterway,
A frame member having a pair of side walls that face two inner surfaces of the opening that face each other and that extend parallel to the tube axis of the rehabilitation pipe;
An annular portion between the inner peripheral surface of the main water channel and the outer peripheral surface of the rehabilitating pipe , and a coating layer filled in the entire area between the inner surface of the opening channel and the side wall except for the end opening in the longitudinal direction. When,
An end opening sealing material that seals the end opening,
A repair waterway structure comprising: a rehabilitating pipe, wherein an upper part of the rehabilitating pipe is formed with a slit connected to the opening path between the pair of side walls . 前記更生管が、アニーリング管材によって構成されていることを特徴とする請求項４に記載の補修水路構造物。 The repair waterway structure according to claim 4, wherein the rehabilitation pipe is made of an annealing pipe material.
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