JP2014088753A - Repair method for existing irrigation canal - Google Patents

Repair method for existing irrigation canal Download PDF

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JP2014088753A
JP2014088753A JP2013042799A JP2013042799A JP2014088753A JP 2014088753 A JP2014088753 A JP 2014088753A JP 2013042799 A JP2013042799 A JP 2013042799A JP 2013042799 A JP2013042799 A JP 2013042799A JP 2014088753 A JP2014088753 A JP 2014088753A
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plate
retaining
existing
sheet pile
water channel
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Shigeaki Sekine
繁明 関根
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Meiwa Industries Ltd
明和工業株式会社
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PROBLEM TO BE SOLVED: To improve workability by a repair method for an irrigation canal having a retaining wall formed of a sheet pile steel plate 01.SOLUTION: A panel attachment part 1 is provided in a proper position of a sheet pile steel plate 01. A retaining wall plate 2 formed of an FRP resin plate with a proper width and a thin metal plate such as a thin steel plate is attached to the panel attachment part in such a manner as to cover a surface of the existing sheet pile steel plate in the state of continuing into the adjacent retaining wall plate, at a height reaching a position below a coping part 04 from a bottom surface 02 of an irrigation canal with a proper width. A retaining wall is formed by infilling and placing a cement-based filler 4 between the existing sheet pile steel plate and the retaining wall plate.

Description

本発明は、矢板鋼板で擁壁を形成した既存用水路の補修工法に関するものである。   The present invention relates to a repair method for an existing water channel in which a retaining wall is formed of a sheet pile steel plate.

矢板鋼板を両岸に打ち込んで擁壁とし、矢板鋼板の上端に笠木コンクリートを打設して形成した構造の用水路が知られている。これらの用水路は特に経年変化によって矢板鋼板部分が腐食して補修が必要となる。   There is known a irrigation channel having a structure in which sheet pile steel plates are driven into both banks to form retaining walls, and headboard concrete is cast on the upper ends of the sheet pile steel plates. These irrigation channels need to be repaired because the sheet pile steel plate portion corrodes due to aging.

特許文献1(特開2002−129537号公報)には、笠木部分と共に矢板鋼板の上方部部分を除去し、下方矢板鋼板内側に添って、新たなコンクリート矢板による擁壁を構築する工法が開示されている。   Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-129537) discloses a construction method in which an upper portion of a sheet pile steel plate is removed together with a headboard portion, and a retaining wall is constructed by a new concrete sheet pile along the inside of the lower sheet pile steel plate. ing.

また特許文献2(特開2012−180728号公報)には、ダメージを受けている矢板鋼板の箇所に対応して、予め工場で所定形状の鋼板を形成し、破損個所を当該鋼板で被覆して補修する手法が開示されている。   Patent Document 2 (Japanese Patent Laid-Open No. 2012-180728) discloses that a steel plate having a predetermined shape is formed in advance at a factory in correspondence with the location of the sheet pile steel plate that has been damaged, and the damaged portion is covered with the steel plate. A technique for repairing is disclosed.

更に特許文献3(特開2011−94441号公報)には、コンクリート製の既設水路の補修工法として、レジンコンクリート製パネルを既設コンクリート面の表面に適宜間隔を空けてボルト止めを行い、背面間隙に充填材(コンクリート)を充填してパネルと既設コンクリート面とを一体化しているものである。   Furthermore, in Patent Document 3 (Japanese Patent Application Laid-Open No. 2011-94441), as a method for repairing a concrete existing water channel, a resin concrete panel is bolted at an appropriate interval to the surface of the existing concrete surface, and the back gap is formed. The panel is integrated with the existing concrete surface by filling with a filler (concrete).

特開2002−129537号公報。 JP 2002-129537 A. 特開2012−180728号公報。 JP2012-180728A. 特開2011−94441号公報。 JP 2011-94441 A.

矢板鋼板を擁壁に使用した用水路の老朽化対策とし、特許文献1記載のようなコンクリート矢板に置き換える手段は、新規な用水路の構築作業と同様な作業が要求されるものであり、相応の費用を要するものである。また特許文献2記載のように損傷個所のみの鋼板被覆は、当必要箇所を補修したとしても、残余の未補修箇所の老朽化は直ぐに表れるので、現実的な補修手段とは言えない。   As a countermeasure against the aging of the irrigation channel using sheet pile steel plate as the retaining wall, the means to replace the concrete sheet pile as described in Patent Document 1 requires the same work as the construction work of a new irrigation channel, and the corresponding cost. Is required. Further, as described in Patent Document 2, the steel sheet covering only the damaged portion is not a realistic repair means because even if the necessary portion is repaired, aging of the remaining unrepaired portion appears immediately.

また特許文献3記載のようにレジンコンクリート製パネルで被覆する手法は、前記相当の重量(50kg以下)のパネルを老朽化した矢板鋼鈑に取り付ける場合、矢板鋼板側の負担が大きく、パネル装着作業が煩瑣となる。   In addition, as described in Patent Document 3, the method of covering with a resin concrete panel has a large burden on the sheet pile steel plate when attaching a panel having a considerable weight (50 kg or less) to an aged sheet pile steel plate. Becomes annoying.

そこで本発明は、樹脂板や薄金属板製のパネルを使用した新規な既存用水路の補修工法を提案したものである。   Therefore, the present invention proposes a novel existing water channel repair method using a panel made of a resin plate or a thin metal plate.

本発明(請求項1,2)に係る既存用水路の補修工法は、矢板鋼板で擁壁を形成した既存用水路の補修工法であって、矢板鋼板の適宜位置、又は矢板鋼板に装着した補強材の適宜位置に、パネル取付部を設け、適宜幅で用水路底面から笠木部の下方に達する高さで、適宜幅のFRP樹脂板、薄鋼板等薄金属板で形成した擁壁板を、隣接する擁壁板と連続して既存矢板鋼板の表面を覆うように前記パネル取付部に装着し、既存矢板鋼板と前記擁壁板の間に、セメント系充填材を充填打設して擁壁を形成してなることを特徴とするものである。   The repair method for an existing water channel according to the present invention (Claims 1 and 2) is a repair method for an existing water channel in which a retaining wall is formed of a sheet pile steel plate, and is an appropriate position of the sheet pile steel plate or a reinforcing material attached to the sheet pile steel plate. A panel mounting portion is provided at an appropriate position, and a retaining wall plate formed of a thin metal plate such as an FRP resin plate or a thin steel plate with an appropriate width at an appropriate width from the bottom of the irrigation channel to the lower part of the headboard portion. It is attached to the panel mounting part so as to cover the surface of the existing sheet pile steel plate continuously with the wall plate, and a retaining wall is formed by filling and placing a cement filler between the existing sheet pile steel plate and the retaining wall plate. It is characterized by this.

従って老朽化した矢板鋼板の擁壁の前面に、側縁が連続する(重なって或いは当接して)擁壁板が形成され、擁壁板背面側空間がセメント系充填材で構成される新規な擁壁が構築されるもので、擁壁板がコンクリート型枠として機能するものである。   Therefore, a retaining wall plate with side edges continuous (overlapping or abutting) is formed on the front surface of the retaining wall of the aged sheet pile steel plate, and the space on the back side of the retaining wall plate is composed of a cement-based filler. The retaining wall is constructed, and the retaining wall plate functions as a concrete formwork.

本発明(請求項3)に係る既存用水路の補修工法は、パネル取付部が、水路中央側に突出して上方を開口した嵌合溝部を備え、擁壁板の背面に適宜間隔を空けた掛帯板部を設け、前記掛帯部を嵌合溝部に嵌合係止して擁壁板をパネル取付部に装着してなるものである。   In the repair method for an existing water channel according to the present invention (Claim 3), the panel mounting portion includes a fitting groove portion that protrudes toward the center of the water channel and opens upward, and a hanging band that is appropriately spaced on the back surface of the retaining wall plate A plate part is provided, and the retaining wall part is fitted and locked to the fitting groove part, and the retaining wall board is attached to the panel mounting part.

而して前記掛帯部を嵌合溝部に嵌合係止して擁壁板をパネル取付部に装着してなるもので、擁壁板を装着した状態で左右に移動できるので、側縁の当接状態や重なり状態による擁壁板の連続性の微調整を簡単にできる。   Thus, the retaining band portion is fitted and locked to the fitting groove portion, and the retaining wall plate is attached to the panel mounting portion, and can be moved to the left and right with the retaining wall plate attached. Fine adjustment of the continuity of the retaining wall plate by the abutting state and the overlapping state can be easily performed.

本発明(請求項4)に係る既存用水路の補修工法は、パネル取付部を、矢板鋼板の上下任意高さに設けられる縦杆装着部と、前記縦杆装着部に装着され、所定位置に擁壁板取付構造を設けた係止縦杆とで構成したもので、既存の矢板鋼板に直接パネル取付部を設ける際に老朽化した矢板鋼板の位置を外して任意高さに縦杆装着部材を付設し、更に係止縦杆を前記縦杆装着部に取り付けることで、一定の高さに擁壁板取付構造を設けることができる。   In the repair method for an existing waterway according to the present invention (Claim 4), the panel attachment portion is attached to a vertical gutter attachment portion provided at an arbitrary vertical height of the sheet pile steel plate, and the vertical gutter attachment portion, and held at a predetermined position. It is composed of a locking vertical gutter provided with a wall plate mounting structure, and when installing the panel mounting part directly on the existing sheet pile steel plate, the position of the aged sheet pile steel plate is removed and the vertical gutter mounting member is set to an arbitrary height A retaining wall plate attachment structure can be provided at a certain height by attaching and further attaching a locking vertical gutter to the vertical gutter mounting portion.

本発明(請求項5)に係る既存用水路の補修工法は、パネル取付部を、擁壁板をネジ止めまた溶着可能とした受け板部で構成してなるもので、擁壁板の背面に何らかの付属部品を設けることなく、擁壁板の装着が可能となる。   In the repair method for an existing waterway according to the present invention (Claim 5), the panel mounting portion is constituted by a receiving plate portion that can be screwed or welded to the retaining wall plate, The retaining wall plate can be mounted without providing any accessory parts.

本発明(請求項6)に係る既存用水路の補修工法は、パネル取付部が、水路中央側に突出した吊下用支持鉤を備え、擁壁板の背面に突設した上下縁板部に形成した係止孔と、前記吊下用支持鉤とを挿着して、擁壁板を吊下装着してなるもので、擁壁板に上下多段構成を採用した場合、上下擁壁板の連結作業が不要となる。   In the repair method for an existing water channel according to the present invention (Claim 6), the panel mounting portion is provided with upper and lower edge plate portions provided with suspension support rods protruding toward the center of the water channel and projecting from the rear surface of the retaining wall plate. The retaining wall plate is suspended and the retaining wall plate is suspended, and when the retaining wall plate has a multi-stage structure, the upper and lower retaining wall plates are connected. Work becomes unnecessary.

本発明(請求項7)に係る既存用水路の補修工法は、パネル取付部が、横架した吊下用支持棒を備え、擁壁板の背面に突設した吊下鉤を前記吊下用支持棒に掛け下げして擁壁板を装着してなるもので、擁壁板を左右に自由に移動させて装着できるので、擁壁板の側縁の当接による擁壁板の連続性の微調整を簡単にできる。   In the repair method for an existing waterway according to the present invention (Claim 7), the panel mounting portion is provided with a horizontal suspension support bar, and the suspension rod projecting on the rear surface of the retaining wall plate is supported for the suspension. The retaining wall plate is hung on a rod and can be mounted by moving the retaining wall plate to the left and right freely. Easy adjustment.

本発明(請求項8)に係る既存用水路の補修工法は、パネル取付部を、擁壁板を上下より抱持する鉤状抱持腕としてなるもので、擁壁板に何らかの付属部品を設けることなく、擁壁板の装着が可能となる。   In the repair method for an existing waterway according to the present invention (Claim 8), the panel mounting portion is formed as a hook-shaped holding arm that holds the retaining wall plate from above and below, and some accessory parts are provided on the retaining wall plate. It is possible to install a retaining wall plate.

本発明(請求項9)に係る既存用水路の補修工法は、擁壁板を、上下方向の全体又は中央部分を湾曲凹状に形成してなるもので、セメント系充填材の充填時に受ける背圧に対しても充分耐久力を備えることができる。   The repair method for an existing waterway according to the present invention (Claim 9) is a method in which the retaining wall plate is formed in a curved concave shape in the whole vertical or central part, and is subjected to the back pressure received when filling with cement filler. Even with respect to this, sufficient durability can be provided.

本発明(請求項10)に係る既存用水路の補修工法は、擁壁板を上下多段構造としてなるもので、深さの異なる既存用水路に対して、同一部材を使用して水路補修ができる。   The repair method of the existing use channel which concerns on this invention (Claim 10) becomes a retaining wall board as an upper and lower multistage structure, and can repair a channel using the same member with respect to the existing use channel from which depth differs.

本発明(請求項14)に係る既存用水路の補修工法は、擁壁板と矢板鋼板の間に形成される空間に、軽量発泡樹脂体を主体とする充填体を内装してなるもので、凹凸面が連続する矢板鋼板と擁壁板との間隙空間において、矢板鋼板の凹部面に充填体を内装することで、充填コンクリート量を少なくすることができる。   The repair method for an existing waterway according to the present invention (Claim 14) is a method in which a filling body mainly composed of a lightweight foamed resin body is provided in a space formed between a retaining wall plate and a sheet pile steel plate. In the gap space between the sheet pile steel plate and the retaining wall plate with continuous surfaces, the amount of filled concrete can be reduced by installing the filler in the concave surface of the sheet pile steel plate.

本発明(請求項15)に係る既存用水路の補修工法は、擁壁板の上縁に連続して既存用水路の笠木部の前面に達する上部擁壁板を設け、上部擁壁板の背後にセメント系充填材を充填打設してなるもので、水路の流水と接触している時間が長く、老朽化(腐食)しやすい部分に新規な擁壁を構築して用水路の補修を行うと共に、更に前記主擁壁の上部に、上部擁壁板を連続させて笠木部の前面まで達する上部擁壁部を形成するものである。   In the repair method for an existing water channel according to the present invention (Claim 15), an upper retaining wall plate that reaches the front of the head portion of the existing water channel is provided continuously on the upper edge of the retaining wall plate, and the cement is placed behind the upper retaining wall plate. In addition to repairing the irrigation channel by constructing a new retaining wall in a part that is prone to aging (corrosion), the contact time with the running water of the channel is long. In the upper part of the main retaining wall, an upper retaining wall part is formed so as to reach the front surface of the headboard part by continuing the upper retaining wall plate.

本発明(請求項16)に係る既存用水路の補修工法は、補修対象の用水路の両岸笠木部間の長さの管体の両端面に、笠木部前面に当接する当接板を設けると共に、当接板の下縁を中央側に折曲し、管体における上部擁壁板の上縁に対応する位置に嵌合溝を下面に形成した梁部材を、上部擁壁板の背後にセメント系充填材を打設する前に対岸の上部擁壁板間に架設してなるもので、上部擁壁の構築と同時に両岸笠木部の間に梁部材が構築されるものである。   The repair method for an existing waterway according to the present invention (Claim 16) is provided with contact plates that come into contact with the front surface of the headboard part at both end surfaces of the pipe body having a length between both bank headboard parts of the waterway to be repaired. The lower edge of the abutment plate is bent toward the center, and a beam member with a fitting groove formed on the lower surface at a position corresponding to the upper edge of the upper retaining wall plate in the pipe is cemented behind the upper retaining wall plate. Before placing the filler, it is constructed between the upper retaining wall plates on the opposite bank, and at the same time the upper retaining wall is constructed, the beam member is constructed between the two banks.

本発明工法は上記のとおりで、所定の薄板(樹脂板・金属板)による擁壁板を型枠として、擁壁板の背面にコンクリートを充填して新規な擁壁を構築して用水路を補修するもので、作業効率良く連続する擁壁を容易に構築できるものである。   The construction method of the present invention is as described above. The retaining wall plate made of a predetermined thin plate (resin plate / metal plate) is used as a mold, and the back of the retaining wall plate is filled with concrete to construct a new retaining wall to repair the water channel. Therefore, it is possible to easily construct a continuous retaining wall with good work efficiency.

本発明工法の第一実施形態(第一実施例)の作業工程説明図(作業開始前:既存用水路の説明図)。 Work process explanatory drawing of 1st embodiment (1st Example) of this invention construction method (Before work start: explanatory drawing of the existing waterway). 同図(擁壁板装着前)。 The same figure (before mounting the retaining wall plate). 同擁壁形成に使用する部材の説明図で(イ)は擁壁板(ロ)はパネル取付部を示す。 It is explanatory drawing of the member used for the retaining wall formation, (A) is a retaining wall board (B) and shows a panel attachment part. 同作業工程説明図(セメント系充填材の充填時)。 Explanatory drawing of the same work process (when filling cement-based filler). 同作業工程説明図(主擁壁構築後)。 The work process explanatory drawing (after main retaining wall construction). 同主擁壁の横断面図。 The cross-sectional view of the main retaining wall. 同梁部材の説明図で(イ)は分解斜視図(ロ)は一部側面図を示す。 (A) is a disassembled perspective view (b) shows a partial side view. 同梁部材の取付状態の説明図。 Explanatory drawing of the attachment state of the beam member. 同上方擁壁完成後の説明図。 Explanatory drawing after completion of the upper retaining wall. 同第一実施例の擁壁板の別例図。 The another example figure of the retaining wall board of the same 1st Example. 同第一実施形態のパネル取付部の別例図(第二実施例)で、(イ)は分離状態(ロ)は連結状態を示す。 It is another example figure (2nd Example) of the panel attachment part of the same first embodiment, (A) shows a separated state (B) shows a connected state. 同第一実施形態のパネル取付部の別例図(第三実施例)。 Another example of the panel mounting portion of the first embodiment (third embodiment). 同第一実施形態のパネル取付部の別例図(第四実施例)。 The another figure of the panel attachment part of the same 1st embodiment (4th Example). 同上方擁壁完成後の断面図。 Sectional drawing after completion of the upper retaining wall. 同第一実施形態のパネル取付部の別例図(第五実施例)。 The another example figure of the panel attachment part of the same first embodiment (5th Example). 同擁壁板の説明図。 Explanatory drawing of the retaining wall board. 同上方擁壁完成後の断面図。 Sectional drawing after completion of the upper retaining wall. 同第二実施形態(第六実施例)の説明図(一部切断斜視図)。 Explanatory drawing (partially cut perspective view) of the second embodiment (sixth example). 同平面図。 FIG. 同上方擁壁完成後の断面図。 Sectional drawing after completion of the upper retaining wall.

次に本発明工法の実施形態をその工程順に説明する。補修対象の用水路は、矢板鋼鈑01を地盤(用水路底面)02に打ち込んで両岸からの背圧を受け止めて水路03を確保し、前記矢板鋼板01の上縁に笠木部04を設けて用水路を構築している。また笠木部04は、矢板鋼板01に被冠したH型鋼041と、H型鋼041の上部に打設した笠木コンクリート042で構成されているものである。   Next, an embodiment of the method of the present invention will be described in the order of the steps. The irrigation channel to be repaired is driven by placing a sheet pile steel 01 into the ground (bottom of the irrigation channel) 02 to receive back pressure from both banks to secure the channel 03, and a headboard portion 04 is provided on the upper edge of the sheet pile steel plate 01. Is building. Further, the headboard portion 04 is composed of an H-shaped steel 041 covered with a sheet pile steel plate 01 and a headwood concrete 042 placed on the upper portion of the H-shaped steel 041.

用水路によっては、水路底面にコンクリートを打設している場合もあり、そのまま既存コンクリート底面を利用しても良いし、捨コンによってコンクリート底面05を形成して補修を行うようにしたり、或いは既存擁壁(矢板鋼鈑01)の直前部分の用水路底面02を掘削し、底面02より低い掘削底面06の位置から笠木部の下方近傍に達する高さまで補修による新規擁壁を構築するようにしても良い。   Depending on the irrigation channel, concrete may be placed on the bottom of the channel, and the existing bottom of the concrete may be used as is, or the concrete bottom 05 may be repaired by discarding or existing The irrigation channel bottom surface 02 just before the wall (sheet pile steel 01) is excavated, and a new retaining wall may be constructed by repairing from the position of the excavation bottom surface 06, which is lower than the bottom surface 02, to a height that reaches the lower part of the headboard portion. .

図1〜17は、既存の矢板鋼板01にパネル取付部を付設してなる本発明の第一実施形態で、図1〜10は第一実施例を示す。第一実施例のパネル取付部1は、取付軸体部11と擁壁板装着板部12からなり、取付軸体部11は、先端をテーパ状の刺突部111とし、更に連続して矢板鋼板01の厚さに対応した細径部112を設け、細径部112の基部側に擁壁板装着板部12を一体に設けたものである。また擁壁板装着板部12には上方開口の嵌合溝部112を設けたものである。   FIGS. 1-17 is 1st embodiment of this invention formed by attaching a panel attaching part to the existing sheet pile steel plate 01, FIGS. 1-10 shows a 1st Example. The panel mounting portion 1 of the first embodiment is composed of a mounting shaft body portion 11 and a retaining wall plate mounting plate portion 12, and the mounting shaft body portion 11 has a tapered piercing portion 111 at the tip, and a sheet pile continuously. A thin diameter portion 112 corresponding to the thickness of the steel plate 01 is provided, and a retaining wall plate mounting plate portion 12 is integrally provided on the base side of the thin diameter portion 112. The retaining wall plate mounting plate portion 12 is provided with a fitting groove portion 112 having an upper opening.

前記パネル取付部1は、矢板鋼板01の一定の高さに取付孔(放射状切れ目を設けていた方が好ましい)07を穿設し、刺突部111を当該取付孔07に圧入すると、刺突部111で一旦取付孔07を押し拡げられるが、細径部112に至ると弾性で復帰して抜け止め状態となり、パネル取付部1が矢板鋼板01の所定位置に固着される。   When the panel mounting portion 1 has a mounting hole 07 (preferably provided with radial cuts) 07 at a certain height of the sheet pile steel plate 01 and the piercing portion 111 is press-fitted into the mounting hole 07, the piercing portion The attachment hole 07 is once expanded by the portion 111, but when it reaches the small-diameter portion 112, the attachment hole 07 is elastically restored to a retaining state, and the panel attachment portion 1 is fixed to a predetermined position of the sheet pile steel plate 01.

前記手段の採用よって溶接やネジ止め作業を必要としないが、擁壁板装着板部12を直接矢板鋼板01に溶接やネジ止めしても良い。特に擁壁板装着板部12の後縁と矢板鋼板01の表面が密着することになり、ガタツキ無く確りと矢板鋼板01に固定されるものである。   Although the welding and screwing operations are not required by adopting the above means, the retaining wall plate mounting plate portion 12 may be directly welded or screwed to the sheet pile steel plate 01. In particular, the rear edge of the retaining wall plate mounting plate portion 12 and the surface of the sheet pile steel plate 01 are brought into close contact with each other, and are firmly fixed to the sheet pile steel plate 01 without rattling.

次に擁壁板2及び充填体3を矢板鋼板01の前面に装着するもので、擁壁板2は薄鋼板で形成したもので、その高さを補修すべき擁壁の高さ(コンクリート底面05から笠木部04の下方までの高さ)とし、幅は一人の作業者が簡単に持ち運び移動・操作できる大きさとしてなる。   Next, the retaining wall plate 2 and the filler 3 are attached to the front surface of the sheet pile steel plate 01. The retaining wall plate 2 is formed of a thin steel plate, and the height of the retaining wall to be repaired (concrete bottom surface). The height is from 05 to the lower part of the headboard portion 04), and the width is a size that can be easily carried, moved and operated by one worker.

また必要に応じて表面に耐腐食性処理を施し、上下方向全体で湾曲凹状に形成し、背面適宜位置に掛帯板部21を設けたもので、前記掛帯板部21は、両端を折曲し折曲端部を擁壁板2に溶着して、擁壁板2の背面において相応の幅方向で適宜間隔を空いて位置するように設けたものである。   Further, if necessary, the surface is subjected to a corrosion resistance treatment, is formed in a curved concave shape in the entire vertical direction, and a hanging plate portion 21 is provided at an appropriate position on the back surface. The hanging plate portion 21 is folded at both ends. The bent end portion is welded to the retaining wall plate 2 so as to be positioned at an appropriate interval in the corresponding width direction on the back surface of the retaining wall plate 2.

充填体3は、矢板鋼板01の表面の凹凸形状の凹部に納まる棒状体で、軽量発泡体の周面を細鉄筋(金属網)で包んだ形状に形成したものである。   The filler 3 is a rod-like body that fits in a concave-convex recess on the surface of the sheet pile steel plate 01, and is formed in a shape in which the peripheral surface of the lightweight foam is wrapped with fine reinforcing bars (metal mesh).

而して前記の充填体3を矢板鋼板01の表面凹部内に位置させると共に、掛帯板部21を嵌合溝部121の上方から差し入れ、擁壁板2の底辺をコンクリート底面07に当接するようにし、擁壁板2で矢板鋼板01の表面を覆う。この擁壁板2及び充填体3は、補修すべき水路の全長に渡って装着するもので、隣接する擁壁板2の左右端部は、互いに重合するようにし、必要に応じて重合箇所をスポット溶接して連結固定しても良い。   Thus, the filler 3 is positioned in the concave portion of the surface of the sheet pile steel plate 01, and the hanging plate portion 21 is inserted from above the fitting groove portion 121 so that the bottom side of the retaining wall plate 2 comes into contact with the concrete bottom surface 07. The surface of the sheet pile steel plate 01 is covered with the retaining wall plate 2. The retaining wall plate 2 and the filler 3 are attached over the entire length of the water channel to be repaired, and the left and right end portions of the adjacent retaining wall plates 2 are superposed on each other, and the superposition location is set as necessary. Spot welding may be used for connecting and fixing.

特に擁壁板2は、パネル取付部1に対して左右方向(水路方向)に対して容易に移動調整可能であるので、両端の重なり具合の調節で、擁壁板2を一定の規格で形成していても水路長に対応できるものである。   In particular, the retaining wall plate 2 can be easily moved and adjusted with respect to the panel mounting portion 1 in the left-right direction (water channel direction). Therefore, the retaining wall plate 2 is formed with a certain standard by adjusting the overlapping state of both ends. Even if it does, it can respond to the waterway length.

擁壁板2の装着を終了すると、矢板鋼板01と擁壁板2との間に、上方開口箇所からセメント系充填材4を流し入れ、固化させるものである。   When the mounting of the retaining wall plate 2 is finished, the cement filler 4 is poured between the sheet pile steel plate 01 and the retaining wall plate 2 from the upper opening location and solidified.

セメント系充填材4が固化して固化層(コンクリート層・モルタル層等)4Aが形成されると、これによって補修擁壁が完成するものであり、特に前記の施工に際しては前記擁壁板2が、上下方向の全体で湾曲凹状とし、コンクリート充填時に受ける背圧に対しても充分耐久力を備えるようにして、軽量化を実現して施工効率を高めると共に、新規補修擁壁(主擁壁)の形成後の水路03の流路断面減少を極力少なくしたものである。   When the cement-based filler 4 is solidified to form a solidified layer (concrete layer, mortar layer, etc.) 4A, this completes the repair retaining wall. In particular, during the construction, the retaining wall plate 2 is In addition, it has a curved concave shape in the entire vertical direction, and has sufficient durability against the back pressure received when filling concrete, realizing weight reduction and improving construction efficiency, and a new repair retaining wall (main retaining wall) The reduction in the cross-sectional area of the water channel 03 after the formation of is reduced as much as possible.

また補修前擁壁を構成する矢板鋼板01は、その表面が凹凸形状となっているが、矢板鋼板01の凹部面に充填体3を内装することで、擁壁板2の背後の空間へのセメント系充填材4の投入量が少なくて済み、且つ矢板鋼板01並びに擁壁板2に対する負担も少なくて済む等の利点を有するものである。   In addition, the sheet pile steel plate 01 constituting the retaining wall before repair has an uneven surface, but by placing the filler 3 in the recessed surface of the sheet pile steel plate 01, the space behind the retaining wall plate 2 can be reduced. This is advantageous in that the input amount of the cement filler 4 can be reduced and the burden on the sheet pile steel plate 01 and the retaining wall plate 2 can be reduced.

前記の主擁壁は、水路の流水と接触している時間が長く、老朽化(腐食)しやすい部分の前面に構築されるので、この主擁壁の構築で水路補修は充分であるが、更に主擁壁の上方に上部擁壁を構築するようにしても良い。   The main retaining wall has a long contact time with the running water of the waterway, and is constructed in front of the part that is prone to aging (corrosion). Furthermore, an upper retaining wall may be constructed above the main retaining wall.

上部擁壁を主擁壁工事に連続して行う場合には、擁壁板2の背後空間にセメント系充填材4を充填する前に、擁壁板2の上辺にキャップ様の型部材5を被冠しておく。型部材5は、セメント系充填材4が固化して補修擁壁が形成された後、擁壁板2の上縁の内側に、擁壁板2と連続する上部擁壁板7の位置決め用の溝6を形成する形状であれば良い。   When the upper retaining wall is continuously formed in the main retaining wall construction, a cap-like mold member 5 is placed on the upper side of the retaining wall plate 2 before the cement-based filler 4 is filled in the space behind the retaining wall plate 2. Be crowned. The mold member 5 is used for positioning the upper retaining wall plate 7 continuous with the retaining wall plate 2 inside the upper edge of the retaining wall plate 2 after the cement-based filler 4 is solidified and the repair retaining wall is formed. Any shape that forms the grooves 6 may be used.

そしてセメント系充填材4が固化して固化層4Aが形成されると、構築済みの補修主擁壁の上端から既存の笠木部04の前面に至る上部擁壁板7を部材として用意しておき、前記上部擁壁板7の下縁を前記溝6に差し入れて起立させ、上部擁壁板7の背後にセメント系充填材8を充填打設して上部擁壁を構築してなるものである。   When the cement filler 4 is solidified to form the solidified layer 4A, the upper retaining wall plate 7 from the upper end of the constructed repair main retaining wall to the front surface of the existing headboard portion 04 is prepared as a member. The upper retaining wall plate 7 is constructed by inserting the lower edge of the upper retaining wall plate 7 into the groove 6 and standing, and filling and placing a cement-based filler 8 behind the upper retaining wall plate 7. .

また前記の上部擁壁の構築と同時に補強の梁を構築するようにしても良く、その場合は梁部材9を組み込んだ後にセメント系充填材8の充填打設を行うものである。   In addition, a reinforcing beam may be constructed simultaneously with the construction of the upper retaining wall. In this case, the cement-based filler 8 is filled after the beam member 9 is assembled.

そして使用する梁部材9は、補修対象の用水路の両岸笠木部04間の長さに対応した管体91を主体とするもので、前記管体91の両端面に笠木部04の前面に当接する当接板部92を設ける。この当接板部92は所定長さ下方に延出させると共に、下縁を中央側に折曲したアンカー部93とする。更に管体91における上部擁壁板7の上縁に対応する位置に嵌合溝94を下面に形成し、嵌合溝94に差し入れて嵌合溝94の中央寄りに添え板部95を溶接しておく。   The beam member 9 to be used is mainly composed of a pipe body 91 corresponding to the length between the opposite bank headboard parts 04 of the irrigation channel to be repaired. An abutting plate portion 92 that contacts is provided. The abutting plate portion 92 is formed as an anchor portion 93 that extends downward by a predetermined length and has a lower edge bent toward the center. Further, a fitting groove 94 is formed on the lower surface of the tube body 91 at a position corresponding to the upper edge of the upper retaining wall plate 7 and is inserted into the fitting groove 94 and welded with an attachment plate 95 near the center of the fitting groove 94. Keep it.

前記梁部材9は、上部擁壁板7の前面に添え板部95が密着し、上部擁壁板7の上縁が嵌合溝94に差し入れられ、当接板部92が笠木部04の前面に当接して配置されることになる。   In the beam member 9, the attachment plate portion 95 is in close contact with the front surface of the upper retaining wall plate 7, the upper edge of the upper retaining wall plate 7 is inserted into the fitting groove 94, and the contact plate portion 92 is the front surface of the headboard portion 04. It will be arranged in contact with.

従って梁部材9を配置すると、上部擁壁板7が確りと位置決めされることになり、この状態で上部擁壁板7の背後にセメント系充填材8を充填打設する。セメント系充填材8が固化すると、上部擁壁が構築されると同時に梁の構築もなされるもので、構築された梁もアンカー部93によって上部擁壁と堅牢に一体化されるものである。   Therefore, when the beam member 9 is arranged, the upper retaining wall plate 7 is positioned with certainty, and in this state, the cement-based filler 8 is filled and placed behind the upper retaining wall plate 7. When the cement-based filler 8 is solidified, the upper retaining wall is constructed at the same time as the beam is constructed, and the constructed beam is firmly integrated with the upper retaining wall by the anchor portion 93.

尚上記の施工手順は、主擁壁を構築した後、上部擁壁を構築する例を示したが、必ずしも一旦主擁壁を構築せずに、擁壁板2と上部擁壁板7を一体にして、その後にコンクリートの打設を実施して、主擁壁と上部擁壁を一連に構築するようにしても良い。   In addition, although the construction procedure described above shows an example in which the upper retaining wall is constructed after constructing the main retaining wall, the retaining wall plate 2 and the upper retaining wall plate 7 are not necessarily constructed once, but the retaining wall plate 2 and the upper retaining wall plate 7 are integrated. Then, after that, concrete placement may be performed to construct the main retaining wall and the upper retaining wall in series.

また主擁壁の構築に際して、図10に示す擁壁板2A,2Bのように、上下方向全体で湾曲凹状とせずに、中央部分の適宜範囲で凹部を形成するようにしても良い。   Further, when the main retaining wall is constructed, a concave portion may be formed in an appropriate range of the central portion instead of a curved concave shape in the entire vertical direction as in the retaining wall plates 2A and 2B shown in FIG.

また前記した第一実施例のパネル取付部1は、矢板鋼板01の所定の高さに付設するようにしたもので、擁壁板2の掛帯板部21の任意の箇所でパネル取付部1と装着できるので、左右の範囲において矢板鋼板01の老朽化の少ない箇所を選択してパネル取付部1を付設すれば良い。しかし必ずしも一定の高さで矢板鋼板01の老朽化の少ない箇所を選択することが困難な場合もある。その対策としては、図11に示す第二実施例を採用しても良い。   Further, the panel mounting portion 1 of the first embodiment described above is attached to a predetermined height of the sheet pile steel plate 01, and the panel mounting portion 1 at an arbitrary position of the hanging plate portion 21 of the retaining wall plate 2. Therefore, the panel mounting portion 1 may be attached by selecting a place where the sheet pile steel plate 01 is less deteriorated in the left and right range. However, there is a case where it is difficult to select a portion of the sheet pile steel plate 01 which is not necessarily deteriorated at a certain height. As a countermeasure, the second embodiment shown in FIG. 11 may be adopted.

第二実施例のパネル取付部1aは、縦杆装着部材11aと係止縦杆12bで構成される。縦杆装着部材11aは、矢板鋼板01の任意の高さに装着されるもので矢板鋼板01から前面に突出させた平板部111aと、平板部111aに設けた側方狭小開口の支持凹部112aとを備えたものである。   The panel mounting portion 1a of the second embodiment is composed of a vertical hook mounting member 11a and a locking vertical hook 12b. The vertical rod mounting member 11a is mounted at an arbitrary height of the sheet pile steel plate 01, and a flat plate portion 111a protruded from the sheet pile steel plate 01 to the front surface, and a support concave portion 112a having a side narrow opening provided in the flat plate portion 111a. It is equipped with.

係止縦杆12aは、前記の支持凹部112aに嵌合する外径を備え、所定高さに前方突出縦板部121aと上方開口の嵌合溝部122aからなる擁壁板装着構造を備えたものである。   The locking vertical rod 12a has an outer diameter that fits into the support recess 112a, and has a retaining wall plate mounting structure that includes a vertically projecting vertical plate portion 121a and a fitting groove portion 122a having an upper opening at a predetermined height. It is.

而して縦杆装着部材11aを、矢板鋼板01において高さに関係なく任意の位置に装着し、係止縦杆12aを支持凹部112aの狭小開口から圧入して嵌合装着して、コンクリート底面05上に起立状態にすると、擁壁板2の掛帯板部21を嵌合溝部122aに差し入れて擁壁板2の装着が可能となるものである。   Thus, the vertical hook mounting member 11a is mounted at an arbitrary position on the sheet pile steel plate 01 regardless of the height, and the locking vertical hook 12a is press-fitted from the narrow opening of the support recess 112a to be fitted and mounted. When standing up on 05, the hanging plate 2 can be mounted by inserting the hanging plate portion 21 of the retaining wall plate 2 into the fitting groove 122a.

従ってパネル取付部1aは、その高さに関わらず老朽化の少ない箇所を選択して固着することができ、左右位置の選択に対しては、擁壁板2の掛帯板部21の装着位置で調整できるものである。   Therefore, the panel mounting portion 1a can be fixed by selecting a portion with little deterioration regardless of its height. For the selection of the left and right positions, the mounting position of the hanging plate portion 21 of the retaining wall plate 2 It can be adjusted with.

図12は第三実施例を示すもので、第三実施例のパネル取付部1bは、矢板鋼板01表面から前方に適宜間隔を空けて設けた受け板部11bで構成し、擁壁板2bを前記受け板部11bに溶接又はネジ止めで装着する。   FIG. 12 shows a third embodiment. The panel mounting portion 1b of the third embodiment is constituted by a receiving plate portion 11b provided at an appropriate interval forward from the surface of the sheet pile steel plate 01, and the retaining wall plate 2b is formed. It attaches to the said receiving plate part 11b by welding or screwing.

図13,14は第四実施例を示すもので、この実施例の既存用水路03は、コンクリート底面05を備えていない例で、矢板鋼鈑01の直前部分の用水路底面06を掘削し、底面06より低い位置から笠木部の下方近傍に達する高さまで補修による新規擁壁を構築するものである。   FIGS. 13 and 14 show a fourth embodiment. The existing water channel 03 in this embodiment is an example in which the concrete bottom surface 05 is not provided. The bottom surface 06 of the water channel bottom surface 06 immediately before the sheet pile steel plate 01 is excavated. A new retaining wall is constructed by repairing from a lower position to a height reaching the lower part of the head section.

第四実施例のパネル取付部1cは、基板部11cと、基板部11cの前方に多段に突出して設けた吊下用支持鉤12cを備えたもので、吊下用支持鉤12cが水路中央側に同一高さに横列するように基板部11cを矢板鋼板01に溶接やネジ止めで固定する。   The panel mounting portion 1c of the fourth embodiment is provided with a substrate portion 11c and a suspension support rod 12c provided in a multistage manner in front of the substrate portion 11c, and the suspension support rod 12c is located at the center of the water channel. The substrate portion 11c is fixed to the sheet pile steel plate 01 by welding or screwing so as to line up at the same height.

擁壁板2cは、吊下用支持鉤12cの多段構成に対応して上下幅が設定され、背面に縁板部21cを突設すると共に、前記縁板部21cに矢板鋼鈑01に固定した基板部11cの設置間隔に対応した係止孔22cを設けたものである。   The retaining wall plate 2c has a vertical width corresponding to the multi-stage configuration of the suspension support rod 12c, and has an edge plate portion 21c projecting on the back surface and fixed to the sheet pile steel plate 01 on the edge plate portion 21c. A locking hole 22c corresponding to the installation interval of the substrate portions 11c is provided.

掘削底面06に蛇籠08を敷き、擁壁板2cの下縁が前記蛇籠08に当接され或いは喰い込ませて、吊下用支持鉤12cを係止孔22cに挿通して擁壁板2cを吊下装着する。尚擁壁板2cは、下方の擁壁板2cの上にそのまま連続して上方の擁壁板2cを吊下装着できるもので、補修対象の用水路の深さに対応して、擁壁板2cを上方に積み重ねることができる。   A gabion 08 is laid on the excavation bottom surface 06, and the lower edge of the retaining wall plate 2c is brought into contact with or bites into the gabion 08, and the supporting wall 12c for suspension is inserted into the locking hole 22c. Wear hanging. The retaining wall plate 2c can be continuously mounted on the lower retaining wall plate 2c as it is suspended from the retaining wall plate 2c. The retaining wall plate 2c corresponds to the depth of the water channel to be repaired. Can be stacked upwards.

擁壁板2cをパネル取付部1cに装着すると、擁壁板2cの背面空間にセメント系充填材4を充填打設して、新規擁壁を構築するものである。   When the retaining wall plate 2c is attached to the panel mounting portion 1c, a new retaining wall is constructed by filling and placing the cement-based filler 4 in the back space of the retaining wall plate 2c.

図15乃至16は第五実施例を示すもので、第五実施例は前記第四実施例と同様に用水路底面02を掘削し、掘削底面06に蛇籠08を使用するものである。   FIGS. 15 to 16 show a fifth embodiment. In the fifth embodiment, the bottom surface 02 of the irrigation channel is excavated and a gabion 08 is used for the excavation bottom surface 06 as in the fourth embodiment.

第五実施例のパネル取付部1dは、基板部11dと吊下用支持棒12dで構成され、基盤部11dは、矢板鋼板01に溶接やネジ止めで固定する基板111dに、支持縦板112dを上下多段に突設し、前記支持縦板112dに支持孔113dを穿設したもので、矢板鋼板01に基板部11dを固定し、横列する支持孔113dを貫通するように吊下用支持棒12dを横架したものである。   The panel mounting portion 1d of the fifth embodiment is composed of a substrate portion 11d and a suspension support rod 12d, and the base portion 11d has a support vertical plate 112d attached to a substrate 111d fixed to the sheet pile steel plate 01 by welding or screwing. The support vertical plate 112d is provided with a support hole 113d, and the support vertical plate 112d is fixed to the sheet pile steel plate 01, and the suspension support rod 12d is penetrated through the support holes 113d. Is horizontal.

擁壁板2dは、前記第四実施例と同様に、吊下用支持棒12dの多段構成に対応して上下幅が設定され、背面に縁板部21dを突設すると共に、前記縁板部21dに適宜間隔で連結孔22dを設けたもので、前記連結孔22dに吊下鉤23dをボルト止め等で装着したものである。尚擁壁板2dを多段構成とした場合には、上下の擁壁板2dを吊下鉤23dの装着と一緒にボルト止めを行う。   Similarly to the fourth embodiment, the retaining wall plate 2d has a vertical width corresponding to the multi-stage configuration of the suspension support rod 12d, and has an edge plate portion 21d protruding on the back surface, and the edge plate portion 21d is provided with connecting holes 22d at appropriate intervals, and a suspension rod 23d is attached to the connecting hole 22d by bolting or the like. When the retaining wall plate 2d has a multistage configuration, the upper and lower retaining wall plates 2d are bolted together with the attachment of the suspension rod 23d.

そして擁壁板2dをパネル取付部1dに吊下げ装着すると、擁壁板2dの背面空間にセメント系充填材4を充填打設して、新規擁壁を構築するものである。   When the retaining wall plate 2d is suspended and attached to the panel mounting portion 1d, a new retaining wall is constructed by filling and placing the cement filler 4 in the back space of the retaining wall plate 2d.

図18〜20は本発明の第二実施形態(第六実施例)を示すもので、この実施形態は矢板鋼板01に補強材1Aを装着し、補強材1Aにパネル取付部1eを設けたものである。   18 to 20 show a second embodiment (sixth example) of the present invention. In this embodiment, a reinforcing material 1A is mounted on a sheet pile steel plate 01, and a panel mounting portion 1e is provided on the reinforcing material 1A. It is.

既存用水路の矢板鋼板01の損耗(腐食)が激しいときは、前記した第一実施形態のように矢板鋼板01にパネル取付部を設けて擁壁板を装着すると、矢板鋼板01に負担が加わって構築した補修擁壁が持たない場合がある。そこで補強材1Aを使用するものである。   When the sheet pile steel sheet 01 of the existing water channel is severely worn (corrosion), if the panel mounting portion is provided on the sheet pile steel sheet 01 and the retaining wall plate is attached as in the first embodiment, a load is applied to the sheet pile steel sheet 01. The constructed retaining wall may not have. Therefore, the reinforcing material 1A is used.

補強材1Aは、矢板鋼鈑01を被覆する形状の鋼鈑で形成したもので、矢板鋼板01において腐食の進行が少ない箇所を選択して溶接等で矢板鋼板01と一体化する。   The reinforcing material 1A is formed of a steel plate having a shape covering the sheet pile steel plate 01, and a portion where the progress of corrosion is small in the sheet pile steel plate 01 is selected and integrated with the sheet pile steel plate 01 by welding or the like.

パネル取付部1eは、前記補強材1Aに固定したもので、鉤状抱持腕11eと受け板部12eで構成され、鉤状抱持腕1は、擁壁板2eの高さに対応する位置に設けたもので、擁壁板2eの上下縁を挟むように設けたものである。受け板部12eは、前記第三実施例と同様の構成である。   The panel mounting portion 1e is fixed to the reinforcing member 1A, and includes a hook-shaped holding arm 11e and a receiving plate portion 12e. The hook-shaped holding arm 1 corresponds to the height of the retaining wall plate 2e. Provided so as to sandwich the upper and lower edges of the retaining wall plate 2e. The receiving plate portion 12e has the same configuration as that of the third embodiment.

而して補強材1Aを矢板鋼鈑01に溶接固定して、矢板鋼板01を被覆すると共に、補強材1Aに設けたパネル取付部1eに擁壁板2eを装着し、擁壁板2eと補強材1Aで囲まれた空間、並びに補強材1Aと矢板鋼板01との隙間にセメント系充填材4を充填打設し、新規擁壁を構築するものである。   Thus, the reinforcing member 1A is welded and fixed to the sheet pile steel plate 01 to cover the sheet pile steel plate 01, and the retaining wall plate 2e is attached to the panel mounting portion 1e provided on the reinforcing member 1A to reinforce the retaining wall plate 2e. A new retaining wall is constructed by filling and placing the cement filler 4 in the space surrounded by the material 1A and the gap between the reinforcing material 1A and the sheet pile steel plate 01.

尚コンクリート底面05の場合には、当該コンクリート底面05の上面に補強材1Aを設け、コンクリート底面05でない場合には、底面02を適宜掘削して補強材1Aを設けるものである。   In the case of the concrete bottom surface 05, the reinforcing material 1A is provided on the top surface of the concrete bottom surface 05, and when it is not the concrete bottom surface 05, the bottom surface 02 is appropriately excavated to provide the reinforcing material 1A.

1,1a,1b,1c,1d,1e パネル取付部
1A 補強材
11 取付軸体部
111 刺突部
112 細径部
12 擁壁板装着板部
121 嵌合溝部
11a 縦杆装着部材
111a 平板部
112a 支持凹部
12a 係止縦杆
121a 前方突出縦板部
122a 嵌合溝部
11b 受け板部
11c 基板部
12c 吊下用支持鉤
11d 基板部
111d 基板
112d 支持縦板
113d 支持孔
12d 吊下用支持棒
11e 鉤状抱持腕
12e 受け板部
2,2A,2B,2b,2c,2d,2e 擁壁板
21 掛帯板部
21c 縁板部
22c 係止孔
3 充填体
4 セメント系充填材
4A 固化層
5 型部材
6 溝
7 上部擁壁板
8 セメント系充填材(上部擁壁用)
9 梁部材91 管体92 当接板部93 アンカー部94 嵌合溝95 添え板部01 矢板鋼鈑01a アンカー02 地盤(水路底面) 9 Beam member 91 Pipe body 92 Contact plate part 93 Anchor part 94 Fitting groove 95 Attached plate part 01 Sheet pile steel plate 01a Anchor 02 Ground (bottom surface of waterway)
03 水路04 笠木部041 H型鋼042 笠木コンクリート05 コンクリート底面06 掘削底面07 取付孔08 蛇籠1, 1a, 1b, 1c, 1d, 1e Panel mounting portion 1A Reinforcing member 11 Mounting shaft body portion 111 Piercing portion 112 Small diameter portion 12 Retaining wall plate mounting plate portion 121 Fitting groove portion 11a Vertical hook mounting member 111a Flat plate portion 112a Support recess 12a Locking vertical rod 121a Front protruding vertical plate portion 122a Fitting groove portion 11b Receiving plate portion 11c Substrate portion 12c Suspension support rod 11d Substrate portion 111d Substrate 112d Support vertical plate 113d Support hole 12d Suspension support rod 11e Holding arm 12e receiving plate part 2, 2A, 2B, 2b, 2c, 2d, 2e Retaining wall plate 21 Hanging plate part 21c Edge plate part 22c Locking hole 3 Filler 4 Cement-based filler 4A Solidified layer 5 type Member 6 Groove 7 Upper retaining wall plate 8 Cement filler (for upper retaining wall) 03 Waterway 04 Kasagi Part 041 H-shaped Steel 042 Kasagi Concrete 05 Concrete Bottom 06 Excavation Bottom 07 Mounting Hole 08 Gabion 1, 1a, 1b, 1c, 1d, 1e Panel mounting portion 1A Reinforcing member 11 Mounting shaft body portion 111 Piercing portion 112 Small diameter portion 12 Retaining wall plate mounting plate portion 121 Fitting groove portion 11a Vertical hook mounting member 111a Flat plate portion 112a Support recess 12a Locking vertical rod 121a Front particularly vertical plate portion 122a Fitting groove portion 11b Receiving plate portion 11c Substrate portion 12c Suspension support rod 11d Substrate portion 111d Substrate 112d Support vertical plate 113d Support hole 12d Suspension support rod 11e Holding arm 12e receiving plate part 2, 2A, 2B, 2b, 2c, 2d, 2e Retaining wall plate 21 Hanging plate part 21c Edge plate part 22c Locking hole 3 Filler 4 Cement-based filler 4A Solidified layer 5 type Member 6 Groove 7 Upper retaining wall plate 8 Cement filler (for upper retaining wall)
9 Beam member 91 Tube body 92 Contact plate portion 93 Anchor portion 94 Fitting groove 95 Attached plate portion 01 Sheet pile steel 01a Anchor 02 Ground (water channel bottom) 9 Beam member 91 Tube body 92 Contact plate portion 93 Anchor portion 94 Fitting groove 95 Attached plate portion 01 Sheet pile steel 01a Anchor 02 Ground (water channel bottom)
03 Waterway 04 Head part 041 H-shaped steel 042 Head part concrete 05 Concrete bottom face 06 Drilling bottom face 07 Mounting hole 08 Gabion 03 Waterway 04 Head part 041 H-shaped steel 042 Head part concrete 05 Concrete bottom face 06 Drilling bottom face 07 Mounting hole 08 Gabion

Claims (16)

  1. 矢板鋼板で擁壁を形成した既存用水路の補修工法であって、矢板鋼板の適宜位置にパネル取付部を設け、適宜幅で用水路底面から笠木部の下方に達する高さで、適宜幅のFRP樹脂板、薄鋼板等薄金属板で形成した擁壁板を、隣接する擁壁板と連続して既存矢板鋼板の表面を覆うように前記パネル取付部に装着し、既存矢板鋼板と前記擁壁板の間に、セメント系充填材を充填打設して擁壁を形成してなることを特徴とする既存用水路の補修工法。   It is a repair method for an existing water channel with a retaining wall formed of a sheet pile steel plate, a panel mounting part is provided at an appropriate position of the sheet pile steel plate, and an appropriate width FRP resin with a height that reaches from the bottom of the water channel to the bottom of the headboard A retaining wall plate formed of a thin metal plate such as a plate or thin steel plate is attached to the panel mounting portion so as to cover the surface of the existing sheet pile steel plate continuously with the adjacent retaining wall plate, and between the existing sheet pile steel plate and the retaining wall plate. In addition, a method for repairing an existing waterway, characterized in that a retaining wall is formed by filling and placing a cement-based filler.
  2. 矢板鋼板で擁壁を形成した既存用水路の補修工法であって、既存矢板鋼板に補強材を装着すると共に、前記補強材の適宜位置にパネル取付部を設け、適宜幅で用水路底面から笠木部の下方に達する高さで、適宜幅のFRP樹脂板、薄鋼板等薄金属板で形成した擁壁板を、隣接する擁壁板と連続して既存矢板鋼板の表面を覆うように前記パネル取付部に止着し、既存矢板鋼板と前記擁壁板の間に、セメント系充填材を充填打設して擁壁を形成してなることを特徴とする既存用水路の補修工法。   It is a repair method for an existing water channel in which a retaining wall is formed with a sheet pile steel plate, and a reinforcing material is attached to the existing sheet pile steel plate, and a panel mounting portion is provided at an appropriate position of the reinforcing material, and an appropriate width of the headboard portion The panel mounting portion so that the retaining wall plate formed of a thin metal plate such as an FRP resin plate or a thin steel plate having an appropriate width at the height reaching the lower side continuously covers the surface of the existing sheet pile steel plate with the adjacent retaining wall plate. A method for repairing an existing waterway, characterized in that a retaining wall is formed by filling and placing a cement-based filler between an existing sheet pile steel plate and the retaining wall plate.
  3. パネル取付部が、水路中央側に突出して上方を開口した嵌合溝部を備え、擁壁板の背面に適宜間隔を空けた掛帯板部を設け、前記掛帯部を嵌合溝部に嵌合係止して擁壁板をパネル取付部に装着してなる請求項1又は2記載の既存用水路の補修工法。   The panel mounting part is provided with a fitting groove part that protrudes toward the center of the water channel and opens upward, and a hanging plate part that is appropriately spaced is provided on the back surface of the retaining wall plate, and the hanging part is fitted into the fitting groove part The method for repairing an existing water channel according to claim 1 or 2, wherein the retaining wall plate is locked and attached to the panel mounting portion.
  4. パネル取付部を、矢板鋼板の上下任意高さに設けられる縦杆装着部と、前記縦杆装着部に装着され、所定位置に擁壁板取付構造を設けた係止縦杆とで構成した請求項1又は2記載の既存用水路の補修工法。   The panel mounting portion is composed of a vertical rod mounting portion provided at an arbitrary vertical height of a sheet pile steel plate, and a locking vertical rod mounted on the vertical rod mounting portion and provided with a retaining wall plate mounting structure at a predetermined position. Item 1 or 2 repair method for existing waterways.
  5. パネル取付部を、擁壁板をネジ止めまたは溶着可能とした受け板部で構成してなる請求項1又は2記載の既存用水路の補修工法。   The method for repairing an existing water channel according to claim 1 or 2, wherein the panel mounting portion is constituted by a receiving plate portion capable of screwing or welding the retaining wall plate.
  6. パネル取付部が、水路中央側に突出した吊下用支持鉤を備え、擁壁板の背面に突設した上下縁板部に形成した係止孔と、前記吊下用支持鉤とを挿着して、擁壁板を吊下装着してなる請求項1又は2記載の既存用水路の補修工法。   The panel mounting part is provided with a suspension support rod projecting toward the center of the water channel, and the locking hole formed in the upper and lower edge plate portions projecting from the rear surface of the retaining wall plate and the suspension support rod are inserted. And the repair method of the existing waterway of Claim 1 or 2 formed by hanging and attaching a retaining wall board.
  7. パネル取付部が、横架した吊下用支持棒を備え、擁壁板の背面に突設した吊下鉤を前記吊下用支持棒に掛け下げして擁壁板を装着してなる請求項1又は2記載の既存用水路の補修工法。   The panel mounting portion includes a horizontal suspension support bar, and a suspension wall projecting from a rear surface of the retaining wall plate is hung on the suspension support rod and the retaining wall plate is mounted. The repair method of the existing waterway of 1 or 2 description.
  8. パネル取付部を、擁壁板を上下より抱持する鉤状抱持腕としてなる請求項1又は2記載の何れかの既存用水路の補修工法。 The method for repairing an existing waterway according to claim 1 or 2, wherein the panel mounting portion is a hook-shaped holding arm that holds the retaining wall plate from above and below.
  9. 擁壁板を、上下方向の全体又は中央部分を湾曲凹状に形成してなる請求項1乃至8記載の何れかの既存用水路の補修工法。 The method for repairing an existing water channel according to any one of claims 1 to 8, wherein the retaining wall plate is formed in a curved concave shape in the entire vertical or central portion.
  10. 擁壁板を上下多段構造としてなる請求項1乃至8記載の何れかの既存用水路の補修工法。 The method for repairing an existing water channel according to any one of claims 1 to 8, wherein the retaining wall plate has a multistage structure.
  11. 既存水路の底面を、簡易なコンクリート底面とし、擁壁板を前記コンクリート底面に当接させてなる請求項1乃至10記載の何れかの既存用水路の補修工法。 The repair method for an existing water channel according to any one of claims 1 to 10, wherein the bottom surface of the existing water channel is a simple concrete bottom surface, and a retaining wall plate is brought into contact with the concrete bottom surface.
  12. 既存擁壁際の用水路底面を掘削し、掘削底面から笠木部の下方近傍に達する高さまで擁壁板を設けてなる請求項1乃至10記載の何れかの既存用水路の補修工法。 The repair method of the existing water channel in any one of Claims 1 thru | or 10 excavating the bottom surface of the water channel at the time of the existing retaining wall, and providing the retaining wall board to the height which reaches the downward vicinity of a headboard part from an excavation bottom surface.
  13. 掘削底面に蛇籠を敷設してなる請求項12記載の既存用水路の補修工法。 The repair method of the existing waterway of Claim 12 formed by laying a gabion on the bottom of excavation.
  14. 擁壁板と矢板鋼板の間に形成される空間に、軽量発泡樹脂体を主体とする充填体を内装してなる請求項1乃至13記載の何れかの既存用水路の補修工法。   The method for repairing an existing water channel according to any one of claims 1 to 13, wherein a filler formed mainly of a lightweight foamed resin body is internally provided in a space formed between the retaining wall plate and the sheet pile steel plate.
  15. 擁壁板の上縁に連続して既存用水路の笠木部の前面に達する上部擁壁板を設け、上部擁壁板の背後にセメント系充填材を充填打設してなる請求項1乃至14記載の何れかの既存用水路の補修工法。   The upper retaining wall board which reaches the front of the headboard part of the existing water channel continuously from the upper edge of the retaining wall board is provided, and the cement-based filler is filled and placed behind the upper retaining wall board. Repair method for any existing canal.
  16. 補修対象の用水路の両岸笠木部間の長さの管体の両端面に、笠木部前面に当接する当接板を設けると共に、当接板の下縁を中央側に折曲し、管体における上部擁壁板の上縁に対応する位置に嵌合溝を下面に形成した梁部材を、上部擁壁板の背後にセメント系充填材を打設する前に対岸の上部擁壁板間に架設してなる請求項15記載の既存用水路の補修工法。   Attaching plates that contact the front of the headboard are provided on both end faces of the pipe with the length between both sides of the waterway to be repaired, and the lower edge of the contacting plate is bent to the center side. In the position corresponding to the upper edge of the upper retaining wall plate, a beam member with a fitting groove formed on the lower surface is placed between the upper retaining wall plates on the opposite bank before placing cement-based filler behind the upper retaining wall plate. The repair method of the existing waterway of Claim 15 formed by erection.
JP2013042799A 2012-10-04 2013-03-05 Repair method for existing irrigation canal Pending JP2014088753A (en)

Priority Applications (3)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018028254A (en) * 2016-04-05 2018-02-22 明和工業株式会社 Repair method of existing canal
JP2018141300A (en) * 2017-02-28 2018-09-13 明和工業株式会社 Repair method for existing canal
JP2018145780A (en) * 2017-03-07 2018-09-20 明和工業株式会社 Repair method for existing irrigation channel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018028254A (en) * 2016-04-05 2018-02-22 明和工業株式会社 Repair method of existing canal
JP2018141300A (en) * 2017-02-28 2018-09-13 明和工業株式会社 Repair method for existing canal
JP2018145780A (en) * 2017-03-07 2018-09-20 明和工業株式会社 Repair method for existing irrigation channel

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