JP2007032762A - Underground pipe and its laying method - Google Patents

Underground pipe and its laying method Download PDF

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JP2007032762A
JP2007032762A JP2005219397A JP2005219397A JP2007032762A JP 2007032762 A JP2007032762 A JP 2007032762A JP 2005219397 A JP2005219397 A JP 2005219397A JP 2005219397 A JP2005219397 A JP 2005219397A JP 2007032762 A JP2007032762 A JP 2007032762A
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tube axis
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male
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JP3828564B1 (en
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Mitsugi Bando
貢 坂東
Nobunori Nukada
宣准 額田
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Daito Eisei Kk
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Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively and easily connect segments in the pipe axial direction. <P>SOLUTION: Lower segments 2 are arranged in the pipe axial direction, their adjacent end portions are connected with each other, then upper segments 3 are arranged on the lower segments 2 in the pipe axial direction, their adjacent end portions are connected with each other, and the upper segments are fixed to the lower segments 2 at cleavage planes. The upper and lower segments 3, 2 are connected in the pipe axial direction by male-female joining. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、排水管や電設管として用いられる埋設管及びその敷設方法に関するものである。   The present invention relates to a buried pipe used as a drain pipe or an electric pipe and a method for laying the buried pipe.

特許文献1には、下セグメントを管軸方向に配列して隣接端部同士を接続し、この下セグメントの上に上セグメントを管軸方向に配列して隣接端部同士を接続しており、前記上下各セグメントの管軸方向の接続がフランジ接続によるものが開示されている。
実開昭５７−２２５８２号公報 In Patent Document 1, the lower segments are arranged in the tube axis direction and the adjacent ends are connected to each other, and the upper segments are arranged in the tube axis direction on the lower segments and the adjacent ends are connected to each other. The connection of the upper and lower segments in the tube axis direction is disclosed by flange connection.
Japanese Utility Model Publication No. 57-22582

セグメントの隣接端部を管軸方向にフランジ接続すると、フランジ間のシールとボルト締結とを必要としコスト高になると共に接続作業が面倒である。
本発明は、このような問題点を解決し得る埋設管及びその敷設方法を提供することを目的とする。
本発明は、セグメントをその隣接端部同士を雌雄結合することにより、安価にかつ容易に管軸方向の接続ができるようにした埋設管を提供すること目的とする。 If the adjacent ends of the segments are flange-connected in the tube axis direction, sealing between the flanges and bolt fastening are required, resulting in high costs and troublesome connection work.
It is an object of the present invention to provide a buried pipe and a method for laying it that can solve such problems.
It is an object of the present invention to provide a buried pipe in which segments can be connected in the pipe axis direction easily and inexpensively by connecting their adjacent ends to each other.

また、本発明は、セグメントをその隣接端部同士を雌雄結合することにより、安価にかつ容易に管軸方向の接続ができる埋設管の敷設方法を提供すること目的とする。   It is another object of the present invention to provide a method for laying a buried pipe that can be connected in the pipe axis direction at low cost by connecting male and female adjacent ends of the segment.

前記目的を達成するため、本発明は、埋設管に次の手段を講じた。
即ち、下セグメント２を管軸方向に配列して隣接端部同士を接続し、この下セグメント２の上に上セグメント３を管軸方向に配列して隣接端部同士を接続するとともに前記下セグメント２と割面で固定した埋設管において、
前記下セグメント２は隣接端部の一方に下外周突条部５Ｄを有する下雄部６Ｄを形成し、隣接端部の他方に他の下セグメント２の下雄部６Ｄの下外周突条部５Ｄに嵌合する溝８Ｄを有する下雌部９Ｄを形成しており、
前記上セグメント３は、隣接両端部に上外周突条部５Ｕを有する上雄部６Ｕを形成した上雄セグメント７と、隣接両端部に前記上外周突条部５Ｕに嵌合する溝８Ｕを有する上雌部９Ｕを形成した上雌セグメント１０とを備えており、前記上雄セグメント７と上雌セグメント１０とを交互に接続している。 In order to achieve the above object, the present invention takes the following means for the buried pipe.
That is, the lower segment 2 is arranged in the tube axis direction to connect the adjacent end portions, and the upper segment 3 is arranged on the lower segment 2 in the tube axis direction to connect the adjacent end portions to each other. In the buried pipe fixed at 2 and the split surface,
The lower segment 2 forms a lower male portion 6D having a lower outer peripheral ridge portion 5D at one of the adjacent end portions, and the lower outer peripheral ridge portion 5D of the lower male portion 6D of the other lower segment 2 at the other of the adjacent end portions. Forming a lower female portion 9D having a groove 8D fitted to
The upper segment 3 has an upper male segment 7 in which an upper male portion 6U having an upper outer peripheral ridge portion 5U is formed at both adjacent end portions, and a groove 8U that fits into the upper outer peripheral ridge portion 5U at adjacent both end portions. An upper female segment 10 having an upper female portion 9U is provided, and the upper male segment 7 and the upper female segment 10 are alternately connected .

これによって、上セグメント３は上雄セグメント７と上雌セグメント１０との雌雄結合により、また下セグメント２も雌雄結合により、安価にかつ容易に管軸方向に接続することができる。しかも、上雄セグメント７を動かすことなく上雌セグメント１０を着脱でき、詰まり補修等のメンテナンス作業が容易となる。
前記上セグメント３の接続位置が下セグメント２の接続位置と管軸方向にずらしている。 As a result, the upper segment 3 can be connected in the tube axis direction at low cost and easily by the male-female connection between the upper male segment 7 and the upper female segment 10, and the lower segment 2 can also be connected by the male-female connection. In addition, the upper female segment 10 can be attached and detached without moving the upper male segment 7, and maintenance work such as clogging repair becomes easy.
The connection position of the upper segment 3 is shifted from the connection position of the lower segment 2 in the tube axis direction.

これによって、上セグメント３の着脱時に、下セグメント２の接続位置に与える負荷を小さくできる。
前記上雄セグメント７を下セグメント２の接続位置を管軸方向に跨いで設け、前記上雌セグメント１０が下セグメント２の接続位置を管軸方向に跨いでいるか、又は下セグメント２の接続位置間の中途部上に設けている。 This can reduce the load applied to the connection position of the lower segment 2 when the upper segment 3 is attached or detached.
The upper male segment 7 is provided across the connection position of the lower segment 2 in the tube axis direction, and the upper female segment 10 straddles the connection position of the lower segment 2 in the tube axis direction, or between the connection positions of the lower segment 2 It is provided on the midway part.

これによって、上セグメント３の着脱時に、下セグメント２の接続位置に与える負荷を小さくできる。
前記上下セグメント３，２の少なくとも下セグメント２の外周面に管軸方向に一定の間隔をあけて周方向に長い補強用リブ１５を設けており、下セグメント２の下補強用リブ１５Ｄの底面側にころがり防止部１６を形成している。 This can reduce the load applied to the connection position of the lower segment 2 when the upper segment 3 is attached or detached.
Reinforcing ribs 15 which are long in the circumferential direction are provided on the outer circumferential surface of at least the lower segment 2 of the upper and lower segments 3 and 2 at a certain interval in the tube axis direction, and the bottom side of the lower reinforcing rib 15D of the lower segment 2 The rolling prevention part 16 is formed.

これによって、ころがり防止部１６が下セグメント２の下当接面４Ｄを常時水平位置に保つので、管軸方向の接続時に水平出しの微調整が不要となり、埋設管１の簡便かつ効率的な敷設が可能となる。また、埋設管１を高強度な構造にできる。
前記上セグメント３の上当接面４Ｕ及び下セグメント２の下当接面４Ｄの縁に上下固定用のフランジ部１８を形成し、上下各フランジ部１８Ｕ、１８Ｄに締結具１９を挿通する挿通孔２０を管軸方向に沿って複数形成し、前記上フランジ部１８Ｕの挿通孔２０Ｕを下フランジ部１８Ｄの挿通孔２０Ｄより多く又は長く形成している。 As a result, the rolling prevention portion 16 always keeps the lower contact surface 4D of the lower segment 2 in a horizontal position, so that fine adjustment of leveling is not required when connecting in the tube axis direction, and the embedded tube 1 can be laid easily and efficiently. Is possible. In addition, the buried pipe 1 can have a high strength structure.
An upper fixing flange portion 18 is formed at the edge of the upper contact surface 4U of the upper segment 3 and the lower contact surface 4D of the lower segment 2, and an insertion hole 20 through which the fastener 19 is inserted into the upper and lower flange portions 18U, 18D. Are formed along the tube axis direction, and the insertion hole 20U of the upper flange portion 18U is formed longer or longer than the insertion hole 20D of the lower flange portion 18D.

これによって、上下セグメント３，２の寸法精度を吸収して管軸方向に接続することができ、上下セグメント３，２の確実な接続を可能とする。
前記上雄セグメント７又は上雌セグメント１０のいずれか一方に、地表側に延びる垂直管２１を一体成形している。
これによって、垂直管２１の継合作業が不要となり、敷設作業の効率化が図れる。 Thereby, the dimensional accuracy of the upper and lower segments 3 and 2 can be absorbed and connected in the tube axis direction, and the upper and lower segments 3 and 2 can be reliably connected.
A vertical pipe 21 extending toward the ground surface is integrally formed with either the upper male segment 7 or the upper female segment 10.
Thereby, the joining work of the vertical pipes 21 becomes unnecessary, and the laying work can be made more efficient.

前記目的を達成するため、本発明は、埋設管の敷設方法に次の手段を講じた。即ち、
前記埋設管１を使用して、水平調整された敷設面２２に複数の下セグメント２を載置し、この下セグメントの下雌部９Ｄに隣接する下セグメント２の下雄部６Ｄを雌雄結合して、管軸方向に複数の下セグメント２を接続しながら敷設し、
前記隣接された複数の下セグメント２上に、上雄セグメント７を管軸方向に上雌セグメント１０の管軸方向長さに相当する間隔をあけて、上下当接面４Ｕ、４Ｄを対面しながら載置し、前記上雄セグメント７の間に上雌セグメント１０を、上雄セグメント７の上雄部６Ｕに上雌セグメント１０の溝８Ｕを嵌合させて載置し、管軸方向に複数の上雄セグメント７と上雌セグメント１０とを交互に接続し、
前記上下セグメント３，２の割面を締結具１９で固定する。 In order to achieve the above-mentioned object, the present invention takes the following means as a method for laying a buried pipe. That is,
Using the buried pipe 1, a plurality of lower segments 2 are placed on the leveled laying surface 22, and the lower male portion 6D of the lower segment 2 adjacent to the lower female portion 9D of the lower segment is connected to the male and female. And laying while connecting a plurality of lower segments 2 in the pipe axis direction,
While facing the upper and lower contact surfaces 4U and 4D on the plurality of adjacent lower segments 2, the upper male segment 7 is spaced in the tube axis direction at an interval corresponding to the length of the upper female segment 10 in the tube axis direction. The upper female segment 10 is placed between the upper male segments 7 , and the upper male portion 6U of the upper male segment 7 is fitted with the groove 8U of the upper female segment 10, and a plurality of pieces are placed in the tube axis direction. The upper male segment 7 and the upper female segment 10 are connected alternately ,
The split surfaces of the upper and lower segments 3 and 2 are fixed with a fastener 19.

これによれば、埋設管１の敷設作業が容易になる。   According to this, the laying work of the buried pipe 1 becomes easy.

本発明の埋設管によれば、セグメントをその隣接端部同士を雌雄結合することにより、安価にかつ容易に管軸方向の接続ができる。
本発明の埋設管の敷設方法によれば、セグメントをその隣接端部同士を雌雄結合することにより、安価にかつ容易に管軸方向の接続ができる。 According to the buried pipe of the present invention, it is possible to easily and inexpensively connect the segments in the axial direction by connecting the adjacent ends of the segments to each other.
According to the buried pipe laying method of the present invention, the adjacent end portions of the segments are male-female-coupled so that the pipe axis direction can be easily and inexpensively connected.

以下、本発明の実施の形態を図面に基づき説明する。なお、Ｕを付加した符号で示される部位あるいは構成部材はいずれも上側、Ｄを付加した符号で示される部位あるいは構成部材はいずれも下側を示している。
図１〜３において、本発明の第１実施形態の埋設管１は、管軸方向に配列しそれぞれの隣接端部同士が雌雄結合して接続している上セグメント３と下セグメント２とを上下に組み合わして成っている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that any part or constituent member indicated by a symbol to which U is added indicates an upper side, and any part or constituent member indicated by a symbol to which D is added indicates a lower side.
1 to 3, the buried pipe 1 according to the first embodiment of the present invention has an upper segment 3 and a lower segment 2 which are arranged in the pipe axis direction and are connected by male and female connections. Consists of.

前記下セグメント２は、埋設管１を管軸方向に沿って上下に二分割した下半分側であって、一端側に下外周突条部５Ｄを有する下雄部６Ｄが形成され、他端側に他の下セグメント２の下外周突条部５Ｄに嵌合する溝８Ｄを有する下雌部９Ｄが形成されている。
前記下外周突条部５Ｄは、断面視略コの字状に外周面から径外側に突出しており、周方向に亘って連続して一体形成されている。また、前記溝８Ｄは前記下外周突条部５Ｄより径大な内径を有する下雌部９Ｄ内周面に、前記下外周突条部５Ｄと同様に断面視がコの字状に陥没形成されると共に、周方向に亘って連続して形成されており、下外周突条部５Ｄに他の下セグメント２の溝８Ｄが嵌合して下セグメント２の管軸方向の移動を規制すると共に水密にシールする雌雄結合が構成されている。 The lower segment 2 is a lower half side obtained by dividing the buried pipe 1 into two vertically along the pipe axis direction, and a lower male part 6D having a lower outer peripheral ridge part 5D is formed on one end side, and the other end side A lower female portion 9D having a groove 8D that fits into the lower outer peripheral ridge portion 5D of the other lower segment 2 is formed.
The lower outer peripheral protrusion 5D protrudes radially outward from the outer peripheral surface in a substantially U shape in cross section, and is integrally formed continuously in the circumferential direction. In addition, the groove 8D is formed in the inner peripheral surface of the lower female portion 9D having an inner diameter larger than that of the lower outer peripheral ridge portion 5D, as in the case of the lower outer peripheral ridge portion 5D. The groove 8D of the other lower segment 2 is fitted to the lower outer peripheral ridge 5D to restrict the movement of the lower segment 2 in the tube axis direction and is watertight. A male-to-female seal is formed.

また、前記溝８Ｄに管軸方向に隣接している内周面の内、他端側に形成される内周面は、一端側に形成される内周面より、下セグメント２の管壁厚さの分だけ内径が大きく形成され、下セグメント２の他端側の溝８Ｄに他の下セグメント２の一端側の下外周突条部５Ｄを上方から嵌合させると、隣接する下セグメント２が径方向にずれることなく管軸方向に直線的に接続できるようになっている。   Of the inner peripheral surface adjacent to the groove 8D in the tube axis direction, the inner peripheral surface formed on the other end side has a tube wall thickness of the lower segment 2 from the inner peripheral surface formed on the one end side. If the lower outer peripheral protrusion 5D on one end side of the other lower segment 2 is fitted into the groove 8D on the other end side of the lower segment 2 from above, the adjacent lower segment 2 is formed. It can be connected linearly in the tube axis direction without shifting in the radial direction.

前記下セグメント２の管軸方向中途部の外周面には、下補強用リブ１５Ｄが管軸方向に複数条形成されており、埋設管１の強度を向上させている。前記下外周突条部５Ｄに溝８Ｄが嵌合した下セグメント２の接続部は前記下補強用リブ１５Ｄより周方向に径大で管軸方向に幅広な補強用のリブとしても機能し、埋設管１の強度をさらに向上させることを可能としている。この下補強用リブ１５Ｄは、下セグメント２の外周面の周方向に亘って上端側を当接して一体成形されており、底面側には水平状のころがり防止部１６が設けられ、敷設作業において下セグメント２の敷設面２２でのころがりが防止できるようになっている。   A plurality of lower reinforcing ribs 15D are formed in the tube axis direction on the outer peripheral surface of the lower segment 2 in the tube axis direction, thereby improving the strength of the buried tube 1. The connecting portion of the lower segment 2 in which the groove 8D is fitted to the lower outer peripheral ridge portion 5D also functions as a reinforcing rib having a diameter larger in the circumferential direction than the lower reinforcing rib 15D and wider in the tube axis direction. The strength of the tube 1 can be further improved. The lower reinforcing rib 15D is integrally formed by contacting the upper end side in the circumferential direction of the outer peripheral surface of the lower segment 2, and a horizontal rolling prevention portion 16 is provided on the bottom surface side. Rolling on the laying surface 22 of the lower segment 2 can be prevented.

前記下セグメント２は管壁上端側に管軸方向に亘って径内側が陥没した段付形状の下当接面４Ｄを形成しており、この下当接面４Ｄの径外側に隣接して、下雌部９Ｄを有する他端側及び前記下補強用リブ１５Ｄと管軸方向に対応した位置に、板状の下フランジ部１８Ｄが径外側に庇状に張り出すと共に前記ころがり防止部１６と平行に形成されており、敷設面２２を水平調整すれば下セグメント２を水平調整しなくても敷設できるように構成されている。   The lower segment 2 is formed with a stepped lower contact surface 4D whose inner diameter is recessed in the tube axis direction on the upper end side of the tube wall, adjacent to the outer diameter of the lower contact surface 4D, A plate-like lower flange portion 18D protrudes radially outward at a position corresponding to the other end side having the lower female portion 9D and the lower reinforcing rib 15D in the tube axis direction, and is parallel to the rolling prevention portion 16. If the laying surface 22 is horizontally adjusted, the lower segment 2 can be laid without being horizontally adjusted.

前記上セグメント３は、埋設管１を管軸方向に沿って上下に二分割した上半分側であって、前記下セグメント２はほぼ同じ管軸方向長さを有する１組の上雄セグメント７と上雌セグメント１０とで構成され、各上雄セグメント７及び上雌セグメント１０は下セグメント２の約半分の管軸方向長さを有しており、これらの上雄セグメント７と上雌セグメント１０とが管軸方向に交互に接続されている。   The upper segment 3 is an upper half side obtained by vertically dividing the buried pipe 1 into two along the pipe axis direction, and the lower segment 2 includes a set of upper male segments 7 having substantially the same length in the pipe axis direction. The upper male segment 7 and the upper female segment 10 are approximately half the length of the lower segment 2 in the tube axis direction. Are alternately connected in the tube axis direction.

前記上雄セグメント７は、管軸方向両端側に上雄部６Ｕを形成しており、この上雄部６Ｕにより隣接する前記上雌セグメント１０と嵌合結合するようになっている。前記上雄部６Ｕは、断面視略コの字状に外周面から径外側に突出した上外周突条部５Ｕを有しており、この上外周突条部５Ｕは上雄セグメント７の両端側の外周面に周方向に亘って一体形成されている。   The upper male segment 7 has upper male portions 6U formed at both ends in the tube axis direction, and is fitted and coupled to the adjacent upper female segments 10 by the upper male portion 6U. The upper male portion 6U has an upper outer peripheral ridge portion 5U that protrudes radially outward from the outer peripheral surface in a substantially U shape in cross section, and the upper outer peripheral ridge portion 5U is on both end sides of the upper male segment 7. Are integrally formed on the outer peripheral surface of the outer peripheral surface in the circumferential direction.

前記上雌セグメント１０は管軸方向両端部に上雌部９Ｕを形成しており、この上雌部９Ｕは管軸方向の中途部より径大に形成されると共に、その内周面には断面視略コの字状に内周面から径外側に陥没形成される溝８Ｕが、上雌部９Ｕの内周面に周方向に亘って連続して陥没形成されており、前記上雄セグメント７の上外周突条部５Ｕに径外方向から嵌合して、管軸方向に上雄セグメント７と上雌セグメント１０とが移動するのを規制すると共に、水密に管軸方向にシールできるようになっている。   The upper female segment 10 has upper female portions 9U formed at both ends in the tube axis direction. The upper female portion 9U is formed to have a diameter larger than a midway portion in the tube axis direction, and has a cross section on the inner peripheral surface thereof. A groove 8U that is recessed from the inner peripheral surface to the radially outer side in a substantially U-shape is formed as a continuous recess in the inner peripheral surface of the upper female portion 9U in the circumferential direction, and the upper male segment 7 So that the upper male segment 7 and the upper female segment 10 can be prevented from moving in the tube axis direction and can be sealed in a water tight manner in the tube axis direction. It has become.

前記上雌セグメント１０の内周面の内、前記溝８Ｕより管軸方向の開口端側に形成される内周面は、前記溝８Ｕより管軸方向の中途側に形成される内周面より、上雄セグメント７の管壁厚さの分だけ径大に形成され、上雄セグメント７の端部側の上外周突条部５Ｕに上雌セグメント１０の一端側の溝８Ｕを上方から嵌合させると、上雄セグメント７と上雌セグメント１０とが径方向にずれることなく管軸方向に直線的に接続できるようになっている。   Of the inner peripheral surface of the upper female segment 10, the inner peripheral surface formed on the opening end side in the tube axis direction from the groove 8U is more than the inner peripheral surface formed on the middle side in the tube axis direction from the groove 8U. The upper male segment 7 is formed to have a large diameter corresponding to the thickness of the tube wall, and the groove 8U on one end side of the upper female segment 10 is fitted to the upper outer peripheral protrusion 5U on the end side of the upper male segment 7 from above. Then, the upper male segment 7 and the upper female segment 10 can be linearly connected in the tube axis direction without being displaced in the radial direction.

前記上雄セグメント７及び上雌セグメント１０の管軸方向の中途部には、上補強用リブ１５Ｕが形成されている。前記上補強用リブ１５Ｕは、断面視略コの字状に外周面から径外側に突出して、上雄セグメント７及び上雌セグメント１０の外周面に周方向に亘って一体形成されており、埋設管１の強度を向上させている。また、前記上雄セグメント７の一端側に形成された上外周突条部５Ｕに、管軸方向に隣接する上雌セグメント１０の一端側の溝８Ｕが嵌合している、下セグメント２の接続箇所は、前記下補強用リブ１５Ｄより周方向に径大で管軸方向に幅広な補強用のリブとして機能し、埋設管１の強度をさらに向上させることを可能としている。   An upper reinforcing rib 15U is formed in the middle of the upper male segment 7 and the upper female segment 10 in the tube axis direction. The upper reinforcing rib 15U protrudes radially outward from the outer peripheral surface in a substantially U shape in cross section, and is integrally formed on the outer peripheral surfaces of the upper male segment 7 and the upper female segment 10 in the circumferential direction. The strength of the tube 1 is improved. Further, the connection of the lower segment 2 in which the groove 8U on one end side of the upper female segment 10 adjacent in the tube axis direction is fitted to the upper outer peripheral protrusion 5U formed on one end side of the upper male segment 7 The location functions as a reinforcing rib that is larger in diameter in the circumferential direction than the lower reinforcing rib 15D and wider in the tube axis direction, and can further improve the strength of the buried pipe 1.

前記上雄セグメント７及び上雌セグメント１０は管壁下端側に管軸方向に亘って径内側が下方に突出した段付形状の上当接面４Ｕを形成しており、前記下セグメント２の下当接面４Ｄと上下に嵌合して上セグメント３の水平方向の移動を規制すると共に、上下セグメント３，２を水密にシールできるようになっている。
前記上当接面４Ｕの径外側に隣接して、かつ上補強用リブ１５Ｕ及び前記上雌セグメント１０の上雌部９Ｕと管軸方向に対応する位置に、板状の上フランジ部１８Ｕが外周面から径外側に庇状に張り出して形成されており、前記上下フランジ部１８Ｕ、１８Ｄを締結具１９を介して締結することで上雄セグメント７及び上雌セグメント１０を下セグメント２に接続できるようになっている。 The upper male segment 7 and the upper female segment 10 are formed with a stepped upper contact surface 4U projecting radially inward in the tube axis direction on the lower end side of the tube wall. The upper and lower segments 3 and 2 can be sealed in a watertight manner while fitting to the contact surface 4D vertically to restrict the horizontal movement of the upper segment 3.
A plate-like upper flange portion 18U is provided on the outer peripheral surface at a position adjacent to the outer diameter of the upper contact surface 4U and corresponding to the upper reinforcing rib 15U and the upper female portion 9U of the upper female segment 10 in the tube axis direction. The upper male segment 7 and the upper female segment 10 can be connected to the lower segment 2 by fastening the upper and lower flange portions 18U and 18D via the fasteners 19 so as to project radially outward from the outer diameter. It has become.

図３において、本発明の埋設管１の敷設方法は、以下の（Ａ）から（Ｃ）の順に行われる。
図３（Ａ）において、掘削され、予め水平調整された敷設面２２上に、下セグメント２をころがり防止部１６を面接させて載置しており、前記ころがり防止部１６は下フランジ部１８Ｄと平行に形成されているので、予め水平調整された敷設面２２上に前記下セグメント２を水平調整作業を行わずに敷設することができる。 In FIG. 3, the laying method of the buried pipe 1 of the present invention is performed in the following order (A) to (C).
In FIG. 3 (A), the lower segment 2 is placed on the laying surface 22 which has been excavated and leveled in advance, with the rolling prevention portion 16 being in contact with the lower segment portion 18 and the lower flange portion 18D. Since they are formed in parallel, the lower segment 2 can be laid on the laying surface 22 that has been leveled in advance without performing leveling work.

また、下セグメント２の管軸方向一端側の下雄部６Ｄの下外周突条部５Ｄに、隣接する他の下セグメント２の管軸方向他端側の下雌部９Ｄの溝８Ｄを上方から嵌合して管軸方向に２つの下セグメント２を接続しており、前記下雄部６Ｄと下雌部９Ｄとが嵌合して下セグメント２の管軸方向の移動を規制され、下セグメント２は管軸方向に水密にシールされている。   Further, the groove 8D of the lower female portion 9D on the other end side in the tube axis direction of the other adjacent lower segment 2 is formed on the lower outer circumferential protrusion 5D of the lower male portion 6D on the one end side in the tube axis direction of the lower segment 2 from above. The two lower segments 2 are connected to each other in the pipe axis direction, and the lower male part 6D and the lower female part 9D are fitted to restrict the movement of the lower segment 2 in the pipe axis direction. 2 is watertightly sealed in the tube axis direction.

図３（Ｂ）において、管軸方向に接続された前記下セグメント２の接続位置上方から、即ち下セグメント２の接続位置の上方に上雄セグメント７の管軸方向中途部の上補強用リブ１５Ｕが位置し、かつ前記接続位置を挟んで隣接する２つの下セグメント２のそれぞれの管軸方向中途部上に上雄セグメント７の管軸方向両端部が位置するように、上雄セグメント７を下セグメント２の接続位置を跨いで設けており、上雄セグメント７を固定すれば下セグメント２も管軸方向に固定できる。   In FIG. 3 (B), the upper reinforcing rib 15U in the middle of the upper male segment 7 in the axial direction of the upper male segment 7 from above the connecting position of the lower segment 2 connected in the axial direction, that is, above the connecting position of the lower segment 2. The upper male segment 7 is positioned so that both ends in the tube axis direction of the upper male segment 7 are positioned on the middle portions in the tube axis direction of the two lower segments 2 adjacent to each other with the connection position therebetween. If the upper male segment 7 is fixed, the lower segment 2 can also be fixed in the tube axis direction.

前記上雄セグメント７は、下セグメント２の管軸方向長さの約半分に形成され、下セグメント２の接続位置を跨いで、管軸方向に上雌セグメント１０の管軸方向長さに相当する間隔をあけて設置され、上雄セグメント７の間に前記上雌セグメント１０を嵌め込んでいる。
前記上雄セグメント７は、その上フランジ部１８Ｕが下セグメント２の下フランジ部１８Ｄと管軸方向に対応する位置にあり、上フランジ部１８Ｕの複数の挿通孔２０Ｕのいずれかと、下セグメント２の下フランジ部１８Ｄの挿通孔２０Ｄとを連通して締結具１９で締結しており、前記上雄セグメント７が隣接する下セグメント２の上下方向の移動を規制して、前記上雄セグメント７の固定によって下セグメント２を管軸方向に接続固定する。 The upper male segment 7 is formed in about half the length of the lower segment 2 in the tube axis direction, and corresponds to the tube axis direction length of the upper female segment 10 in the tube axis direction across the connection position of the lower segment 2. The upper female segment 10 is fitted between the upper male segments 7.
The upper male segment 7 has an upper flange portion 18U at a position corresponding to the lower flange portion 18D of the lower segment 2 in the pipe axis direction, and one of the plurality of insertion holes 20U of the upper flange portion 18U and the lower segment 2 The upper male segment 7 is fixed by connecting the insertion hole 20D of the lower flange portion 18D with the fastener 19 and restricting the upper male segment 7 to move in the vertical direction of the adjacent lower segment 2. Thus, the lower segment 2 is connected and fixed in the tube axis direction.

図３（Ｃ）において、前記上雌セグメント１０は、管軸方向に間隔をあけて固定されている２つの上雄セグメント７間に、下当接面４Ｄに上当接面４Ｕが面接するように、上方から載置固定する。
前記上雌セグメント１０は、両端側の上雌部９Ｕの溝８Ｕが、前記上雄セグメント７のそれぞれ相対する上雄部６Ｕの上外周突条部５Ｕに、上方から嵌合しており、前記上雄セグメント７の管軸方向の移動を規制すると共に、上雌セグメント１０と上雄セグメント７とを水密にシールする。 In FIG. 3 (C), the upper female segment 10 is arranged such that the upper contact surface 4U comes into contact with the lower contact surface 4D between two upper male segments 7 fixed at intervals in the tube axis direction. Then, mount and fix from above.
In the upper female segment 10, the grooves 8U of the upper female portions 9U on both end sides are fitted from above to the upper outer peripheral ridges 5U of the upper male portions 6U of the upper male segment 7, respectively, The movement of the upper male segment 7 in the tube axis direction is restricted, and the upper female segment 10 and the upper male segment 7 are sealed in a watertight manner.

前記上雌セグメント１０の上フランジ部１８Ｕは、前記下フランジ部１８Ｄの上方に面接し、かつ上フランジ部１８Ｕの挿通孔２０Ｕは下フランジ部１８Ｄの挿通孔２０Ｄと連通状態になるように、締結具１９で上下フランジ部１８Ｕ，１８Ｄが固定されており、締結具１９の着脱に応じて係脱自在な上雌セグメント１０が、上雄セグメント７の管軸方向及び上下方向の移動を規制するので、上雌セグメント１０をメンテナンス作業時に係脱可能となっている。   The upper flange portion 18U of the upper female segment 10 is in contact with the lower flange portion 18D, and the insertion hole 20U of the upper flange portion 18U is in communication with the insertion hole 20D of the lower flange portion 18D. The upper and lower flange portions 18U and 18D are fixed by the tool 19, and the upper female segment 10 that can be freely engaged and disengaged according to the attachment and detachment of the fastener 19 regulates the movement of the upper male segment 7 in the tube axis direction and the vertical direction. The upper female segment 10 can be engaged and disengaged during maintenance work.

図４において、本発明の第２実施形態の埋設管１は、上雄セグメント７及び上雌セグメント１０の双方が下セグメント２の接続位置を跨いで設けられており、詰まりの発生しやすい下セグメント２の管軸方向の接続箇所のメンテナンス作業を可能としている。
前記上雄セグメント７及び上雌セグメント１０がいずれも下セグメント２とほぼ同じ管軸方向長さを有しており、セグメントの点数を減らしてコストダウンさせることができるようになっている。特に、下セグメント２を上雄セグメント７と上雌セグメント１０と同様な隣接両端部に雄部６または雌部６のいずれかを有する２種類のセグメントを管軸方向に交互に備える構成とすることで、射出成形の金型を共通化して製造コストを低減することができるようになる。 In FIG. 4, the buried pipe 1 according to the second embodiment of the present invention includes a lower segment in which both the upper male segment 7 and the upper female segment 10 are provided across the connection position of the lower segment 2, and clogging is likely to occur. The maintenance work of the connection part of 2 pipe axis directions is enabled.
Both the upper male segment 7 and the upper female segment 10 have substantially the same length in the tube axis direction as the lower segment 2, and the number of segments can be reduced to reduce the cost. In particular, the lower segment 2 is configured so that two types of segments having either the male part 6 or the female part 6 are alternately provided in the tube axis direction at adjacent both end portions similar to the upper male segment 7 and the upper female segment 10. Thus, it is possible to reduce the manufacturing cost by using a common injection mold.

また、上下フランジ部１８Ｕ，１８Ｄは管軸方向に連続的に設けられ、締結具１９と挿通孔２０とが管軸方向に間隔をあけて設けられていると共に、挿通孔２０Ｕは挿通孔２０Ｄより管軸方向に長い長孔形状に形成されており、上セグメント３の取り付けにおいて管軸方向の位置がずれることがあっても、そのずれを吸収して上セグメント３が確実に固定できようにされている。   The upper and lower flange portions 18U and 18D are continuously provided in the tube axis direction, the fastener 19 and the insertion hole 20 are provided with a space in the tube axis direction, and the insertion hole 20U is formed from the insertion hole 20D. It is formed in a long hole shape that is long in the tube axis direction, and even if the position in the tube axis direction is displaced when the upper segment 3 is attached, the displacement is absorbed and the upper segment 3 can be securely fixed. ing.

図５において、本発明の第３実施形態の埋設管１は、前記上雌セグメント１０の管軸方向中途部に一端を接続して、管軸方向と垂直に延びる垂直管２１を一体形成しており、垂直管２１の継合に別途作業を要することなく、前記上雌セグメント１０を用いるだけで済むので、垂直管２１の敷設が容易となる。
なお、前記垂直管２１を一体に設けるのは、前記上雄セグメント７と上雌セグメント１０とのいずれかでも良いが、本実施形態では上雌セグメント１０に設けたものを示す。 In FIG. 5, the buried pipe 1 according to the third embodiment of the present invention has one end connected to a middle part of the upper female segment 10 in the pipe axis direction, and integrally forms a vertical pipe 21 extending perpendicular to the pipe axis direction. In addition, the vertical pipe 21 can be easily laid because only the upper female segment 10 is used without requiring additional work for joining the vertical pipes 21.
The vertical pipe 21 may be provided integrally with either the upper male segment 7 or the upper female segment 10, but in the present embodiment, the vertical pipe 21 is provided on the upper female segment 10.

本発明は前記実施形態における各部材の形状およびそれぞれの前後・左右・上下の位置関係は、図１〜５に示すように構成することが最良である。しかし、前記実施形態に限定されるものではなく、部材、構成を種々変形したり、組み合わせを変更したりすることもできる。
前記埋設管１の材質は、鋼鉄等の金属製、コンクリートや繊維強化コンクリートなどの無機材料製、またはこれらの混合物を用いて成形されるが、環境負荷軽減と製造コストの低減の観点からフライアッシュと廃プラスチックとの混合物を射出成形しても良い。また、成型方法は射出成形に限定されず、接合、ボルト係止等の既知の成型方法で構成しても良い。 In the present invention, the shape of each member and the positional relationship of front / rear / left / right / upper / lower are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously deformed, and a combination can also be changed.
The material of the buried pipe 1 is made of a metal such as steel, an inorganic material such as concrete or fiber reinforced concrete, or a mixture thereof. Fly ash is used from the viewpoint of reducing environmental burden and manufacturing cost. And a mixture of waste plastics may be injection molded. The molding method is not limited to injection molding, and may be configured by a known molding method such as joining or bolt locking.

前記下セグメント２を上セグメント３と同様に、上雄セグメント７及び上雌セグメント１０と同一形状のものとしても良い。これによって、射出成形の金型を上下セグメント３，２で共通化することができ、製造コストの低減が可能となる。
前記上下セグメント３，２の締結具１９に限らず公知の係止手段、例えば溶接や蝋付けなどでも良く、前記上下セグメント３，２の形状は、円筒形状に限定されず、断面視多角形状であっても良い。 Similarly to the upper segment 3, the lower segment 2 may have the same shape as the upper male segment 7 and the upper female segment 10. Thus, the injection mold can be shared by the upper and lower segments 3 and 2, and the manufacturing cost can be reduced.
Not only the fasteners 19 of the upper and lower segments 3 and 2, but also known locking means such as welding or brazing may be used, and the shape of the upper and lower segments 3 and 2 is not limited to a cylindrical shape, but is a polygonal shape in cross section. There may be.

第１実施形態の埋設管の分解斜視図である。It is a disassembled perspective view of the buried pipe of 1st Embodiment. 第１実施形態の埋設管の一部断面正面図である。It is a partial cross section front view of the buried pipe of 1st Embodiment. 第１実施形態の埋設管の敷設方法を示す説明図である。It is explanatory drawing which shows the laying method of the buried pipe of 1st Embodiment. 第２実施形態の埋設管の一部断面正面図である。It is a partial cross section front view of the buried pipe of 2nd Embodiment. 第３実施形態の上雌セグメントの断面図である。It is sectional drawing of the upper female segment of 3rd Embodiment.

符号の説明Explanation of symbols

１ 埋設管
２ 下セグメント
３ 上セグメント
４ 当接面
５ 外周突条部
６ 雄部
７ 上雄セグメント
８ 溝
９ 雌部
１０ 上雌セグメント
１５ 補強用リブ
１６ ころがり防止部
１８ フランジ部
１９ 締結具
２０ 挿通孔
２１ 垂直管
２２ 敷設面 DESCRIPTION OF SYMBOLS 1 Buried pipe 2 Lower segment 3 Upper segment 4 Contact surface 5 Outer peripheral protrusion 6 Male part 7 Upper male segment 8 Groove 9 Female part 10 Upper female segment 15 Reinforcing rib 16 Rolling prevention part 18 Flange part 19 Fastener 20 Insertion Hole 21 Vertical pipe 22 Laying surface

Claims (9)

下セグメント（２）を管軸方向に配列して隣接端部同士を接続し、この下セグメント（２）の上に上セグメント（３）を管軸方向に配列して隣接端部同士を接続するとともに前記下セグメント（２）と割面で固定した埋設管において、
前記上セグメント（３）は、隣接両端部に上外周突条部（５Ｕ）を有する上雄部（６Ｕ）を形成した上雄セグメント（７）と、隣接両端部に前記上外周突条部（５Ｕ）に嵌合する溝（８Ｕ）を有する上雌部（９Ｕ）を形成した上雌セグメント（１０）とを備えていることを特徴とする埋設管。 The lower segment (2) is arranged in the tube axis direction to connect adjacent ends, and the upper segment (3) is arranged in the tube axis direction on this lower segment (2) to connect adjacent ends. And the buried pipe fixed at the split surface with the lower segment (2),
The upper segment (3) includes an upper male segment (7U) having an upper male part (6U) having upper outer peripheral ridges (5U) at adjacent both ends, and the upper outer peripheral ridges ( And an upper female segment (10) having an upper female portion (9U) having a groove (8U) fitted to 5U). 下セグメント（２）を管軸方向に配列して隣接端部同士を接続し、この下セグメント（２）の上に上セグメント（３）を管軸方向に配列して隣接端部同士を接続するとともに前記下セグメント（２）と割面で固定した埋設管において、
前記下セグメント（２）は隣接端部の一方に下外周突条部（５Ｄ）を有する下雄部（６Ｄ）を形成し、隣接端部の他方に他の下セグメント（２）の下雄部（６Ｄ）の下外周突条部（５Ｄ）に嵌合する溝（８Ｄ）を有する下雌部（９Ｄ）を形成していることを特徴とする埋設管。 The lower segment (2) is arranged in the tube axis direction to connect adjacent ends, and the upper segment (3) is arranged in the tube axis direction on this lower segment (2) to connect adjacent ends. And the buried pipe fixed at the split surface with the lower segment (2),
The lower segment (2) forms a lower male part (6D) having a lower outer peripheral ridge (5D) at one of the adjacent ends, and the lower male part of the other lower segment (2) at the other of the adjacent ends. (6D) The embedded pipe characterized by forming the lower female part (9D) which has the groove | channel (8D) fitted to the lower outer periphery protrusion (5D). 下セグメント（２）を管軸方向に配列して隣接端部同士を接続し、この下セグメント（２）の上に上セグメント（３）を管軸方向に配列して隣接端部同士を接続するとともに前記下セグメント（２）と割面で固定した埋設管において、
前記下セグメント（２）は隣接端部の一方に下外周突条部（５Ｄ）を有する下雄部（６Ｄ）を形成し、隣接端部の他方に他の下セグメント（２）の下雄部（６Ｄ）の下外周突条部（５Ｄ）に嵌合する溝（８Ｄ）を有する下雌部（９Ｄ）を形成しており、
前記上セグメント（３）は、隣接両端部に上外周突条部（５Ｕ）を有する上雄部（６Ｕ）を形成した上雄セグメント（７）と、隣接両端部に前記上外周突条部（５Ｕ）に嵌合する溝（８Ｕ）を有する上雌部（９Ｕ）を形成した上雌セグメント（１０）とを備えていることを特徴とする埋設管。 The lower segment (2) is arranged in the tube axis direction to connect adjacent ends, and the upper segment (3) is arranged in the tube axis direction on this lower segment (2) to connect adjacent ends. And the buried pipe fixed at the split surface with the lower segment (2),
The lower segment (2) forms a lower male part (6D) having a lower outer peripheral ridge (5D) at one of the adjacent ends, and the lower male part of the other lower segment (2) at the other of the adjacent ends. (6D) forming a lower female part (9D) having a groove (8D) fitted to the lower outer peripheral ridge (5D);
The upper segment (3) includes an upper male segment (7U) having an upper male part (6U) having upper outer peripheral ridges (5U) at adjacent both ends, and the upper outer peripheral ridges ( And an upper female segment (10) having an upper female portion (9U) having a groove (8U) fitted to 5U). 前記上セグメント（３）の接続位置が下セグメント（２）の接続位置と管軸方向にずらしていることを特徴とする請求項１〜３のいずれかに記載の埋設管。   The buried pipe according to any one of claims 1 to 3, wherein the connection position of the upper segment (3) is shifted in the pipe axis direction from the connection position of the lower segment (2). 前記上雄セグメント（７）を下セグメント（２）の接続位置を管軸方向に跨いで設け、前記上雌セグメント（１０）が下セグメント（２）の接続位置を管軸方向に跨いでいるか、又は下セグメント（２）の接続位置間の中途部上に設けていることを特徴とする請求項１又は３に記載の埋設管。   The upper male segment (7) is provided across the connection position of the lower segment (2) in the tube axis direction, and the upper female segment (10) straddles the connection position of the lower segment (2) in the tube axis direction, Alternatively, the buried pipe according to claim 1 or 3, wherein the buried pipe is provided in a middle portion between connection positions of the lower segment (2). 前記上下セグメント（３，２）の少なくとも下セグメント（２）の外周面に管軸方向に一定の間隔をあけて周方向に長い補強用リブ（１５）を設けており、下セグメント（２）の下補強用リブ（１５Ｄ）の底面側にころがり防止部（１６）を形成していることを特徴とする請求項１〜５のいずれかに記載の埋設管。   Reinforcing ribs (15) which are long in the circumferential direction are provided on the outer peripheral surface of at least the lower segment (2) of the upper and lower segments (3, 2) at a certain interval in the tube axis direction. The buried pipe according to any one of claims 1 to 5, wherein a rolling prevention portion (16) is formed on a bottom side of the lower reinforcing rib (15D). 前記上セグメント（３）の上当接面（４Ｕ）及び下セグメント（２）の下当接面（４Ｄ）の縁に上下固定用のフランジ部（１８）を形成し、上下各フランジ部（１８Ｕ、１８Ｄ）に締結具（１９）を挿通する挿通孔（２０）を管軸方向に沿って複数形成し、前記上フランジ部（１８Ｕ）の挿通孔（２０Ｕ）を下フランジ部（１８Ｄ）の挿通孔（２０Ｄ）より多く又は長く形成していることを特徴とする請求項１〜６のいずれかに記載の埋設管。   Upper and lower fixing flange portions (18) are formed at the edges of the upper contact surface (4U) of the upper segment (3) and the lower contact surface (4D) of the lower segment (2), and the upper and lower flange portions (18U, 18D), a plurality of insertion holes (20) through which the fastener (19) is inserted are formed along the tube axis direction, and the insertion hole (20U) of the upper flange portion (18U) is inserted into the insertion hole of the lower flange portion (18D). The buried pipe according to any one of claims 1 to 6, wherein the buried pipe is formed more or more than (20D). 前記上雄セグメント（７）又は上雌セグメント（１０）のいずれか一方に、地表側に延びる垂直管（２１）を一体成形していることを特徴とする請求項１〜７のいずれかに記載の埋設管。   The vertical pipe (21) extended to the ground surface side is integrally formed in either one of the upper male segment (7) or the upper female segment (10), according to any one of claims 1 to 7. Buried pipe. 前記請求項１〜８のいずれかに記載の埋設管（１）を使用して、水平調整された敷設面（２２）に複数の下セグメント（２）を載置し、この下セグメント（２）の隣接端部に他の下セグメント（２）を雌雄結合して、管軸方向に複数の下セグメント（２）を接続しながら敷設し、
前記複数の下セグメント（２）上に上セグメント（３）を上下当接面（４Ｕ、４Ｄ）を対面しながら載置し、この上セグメント（３）の隣接端部に他の上セグメント（３）を雌雄結合して管軸方向に複数の上セグメント（３）を接続し、
前記上下セグメント（３，２）の割面を締結具（１９）で固定することを特徴とする埋設管の敷設方法。 A plurality of lower segments (2) are placed on the leveled laying surface (22) using the buried pipe (1) according to any one of claims 1 to 8, and the lower segment (2) The other lower segment (2) is connected to the adjacent end of the male and female, and laid while connecting the plurality of lower segments (2) in the tube axis direction,
The upper segment (3) is placed on the plurality of lower segments (2) while facing the upper and lower abutment surfaces (4U, 4D), and another upper segment (3) is placed at the adjacent end of the upper segment (3). ) To connect the upper segments (3) in the tube axis direction,
A method of laying a buried pipe, characterized in that a split surface of the upper and lower segments (3, 2) is fixed with a fastener (19).
JP2005219397A 2005-07-28 2005-07-28 Buried pipe and its laying method Expired - Fee Related JP3828564B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011051221A (en) * 2009-09-01 2011-03-17 Yokohama Rubber Co Ltd:The Hollow molded article
JP2011061997A (en) * 2009-09-11 2011-03-24 Doi Seisakusho:Kk Trough for multipurpose underground conduit
KR102553757B1 (en) * 2023-02-03 2023-07-10 유영주 Turbine structure with increased dissemble and assemble function and increased maintenance function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011051221A (en) * 2009-09-01 2011-03-17 Yokohama Rubber Co Ltd:The Hollow molded article
JP2011061997A (en) * 2009-09-11 2011-03-24 Doi Seisakusho:Kk Trough for multipurpose underground conduit
KR102553757B1 (en) * 2023-02-03 2023-07-10 유영주 Turbine structure with increased dissemble and assemble function and increased maintenance function

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