JP2020180529A - Culvert pipe supply box and culvert formation device - Google Patents

Culvert pipe supply box and culvert formation device Download PDF

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JP2020180529A
JP2020180529A JP2019086126A JP2019086126A JP2020180529A JP 2020180529 A JP2020180529 A JP 2020180529A JP 2019086126 A JP2019086126 A JP 2019086126A JP 2019086126 A JP2019086126 A JP 2019086126A JP 2020180529 A JP2020180529 A JP 2020180529A
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underdrain
pipe
underdrain pipe
culvert
insertion port
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孝平 井上
Kohei Inoue
孝平 井上
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Takeuchigumi Co Ltd
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Takeuchigumi Co Ltd
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Abstract

To provide a culvert pipe supply box and a culvert formation device which enable a culvert pile to be laid down without damaging.SOLUTION: A culvert pipe supply box 22 is a box continuously provided on the rear part of an excavation part 20 of a culvert formation device, and includes a culvert pipe insertion port 32, a culvert pipe outlet 34 and a pipe curved part 36. The pipe curved part 36 curves a culvert pipe 14 in the culvert pipe supply box 22 that is inserted from the culvert pipe insertion port 32 and is drawn from the culvert pipe outlet 34, and eliminates a bent state of the culvert pipe 14 in the culvert pipe insertion port 32 and the culvert pipe outlet 34. When being brought into contact with the pipe curved part 36, the culvert pipe 14 inserted from the culvert pipe insertion port 32 is curved. Simultaneously, the bent state of the culvert pipe 14 in the culvert pipe insertion port 32 and the culvert pipe outlet 34 is eliminated. Thereby, the culvert pipe can be laid down without damaging.SELECTED DRAWING: Figure 2

Description

本発明は、圃場に暗渠パイプ（吸水管）を埋設する暗渠形成装置に装着する暗渠パイプ供給ボックス及び暗渠形成装置に関するものである。 The present invention relates to an underdrain pipe supply box and an underdrain forming device to be attached to an underdrain forming device for burying an underdrain pipe (water absorption pipe) in a field.

水田を乾田化するために暗渠排水が行われている。暗渠の設置には、現在、圃場に暗渠パイプ（吸水管）を埋設する暗渠排水敷設装置が用いられている（例えば、特許文献１）。 Underdrain drainage is being carried out to convert paddy fields into dry fields. Currently, an underdrain drainage laying device for burying an underdrain pipe (water absorption pipe) in a field is used for installing an underdrain (for example, Patent Document 1).

特開２００４−３２６８号公報Japanese Unexamined Patent Publication No. 2004-3268

特許文献１の暗渠排水敷設装置は、圃場における地中に暗渠パイプ（吸水管）と暗渠パイプの上部へ疎水材を連続的に埋設する暗渠排水敷設手段を備えるものである。暗渠排水敷設手段は、疎水材の収容ホッパーと、この収容ホッパーの底部へ接続させた土切り部材を備える破砕体と、暗渠パイプの供給手段とを備える。破砕体内には挿嵌路を設けられている。挿嵌路の上部から暗渠パイプを挿入し、挿嵌路の下部の送り出し口から暗渠パイプの先端部を取り出す。暗渠排水敷設装置の走行により、暗渠パイプと疎水材とを埋設するための掘削溝が形成される。また、圃場中に暗渠パイプと疎水材が埋設され、暗渠が形成される。 The underdrain drainage laying device of Patent Document 1 includes an underdrain pipe (water absorption pipe) and an underdrain drainage laying means for continuously burying a hydrophobic material in the upper part of the underdrain pipe in the ground in a field. The underdrain drainage laying means includes an accommodating hopper of a hydrophobic material, a crushed body provided with a soil cutting member connected to the bottom of the accommodating hopper, and a means for supplying an underdrain pipe. An insertion path is provided in the crushed body. The underdrain pipe is inserted from the upper part of the insertion path, and the tip of the underdrain pipe is taken out from the outlet at the lower part of the insertion path. By running the underdrain drainage laying device, an excavation ditch for burying the underdrain pipe and the hydrophobic material is formed. In addition, an underdrain pipe and a hydrophobic material are buried in the field to form an underdrain.

破砕体の挿嵌路に挿入され取り出される暗渠パイプは、フレキシブル性を有する合成樹脂等により成形した長尺で口径５０〜６０ｍｍのパイプ状のものである。
しかし、近年、口径７０〜１００ｍｍ又はその口径より大口径の暗渠パイプを用いて暗渠排水を行う場合がある。挿嵌路に口径７０〜１００ｍｍ又はその口径より大口径の暗渠パイプを挿入すると、挿嵌路の挿入口及び引出し口において暗渠パイプが折れ曲がり、折れ曲がった状態で引き出されると、暗渠パイプが裂けることがあった。また、裂けた暗渠パイプが敷設されると、暗渠パイプが上下左右に波打った状態で敷設され、暗渠パイプ内に空気溜まりが形成されることから、暗渠の排水機能が低下するという問題があった。また、漏水の原因となり、暗渠の施工後暗渠パイプの修繕工事が必要となっていた。 The underdrain pipe that is inserted into and taken out from the insertion path of the crushed body is a long pipe-shaped pipe having a diameter of 50 to 60 mm, which is formed of a flexible synthetic resin or the like.
However, in recent years, underdrain drainage may be performed using an underdrain pipe having a diameter of 70 to 100 mm or a diameter larger than that diameter. When an underdrain pipe with a diameter of 70 to 100 mm or a diameter larger than that diameter is inserted into the insertion path, the underdrain pipe may be bent at the insertion port and the outlet of the insertion path, and if it is pulled out in a bent state, the underdrain pipe may be torn. there were. In addition, when a torn underdrain pipe is laid, the underdrain pipe is laid in a wavy state in the vertical and horizontal directions, and an air pool is formed in the underdrain pipe, so that there is a problem that the drainage function of the underdrain deteriorates. It was. In addition, it caused water leakage, and it was necessary to repair the underdrain pipe after the underdrain was constructed.

本発明は、上記問題を解決するものであって、暗渠パイプ（吸水管）を破損させずに敷設できる暗渠パイプ供給ボックス及び暗渠形成装置を提供するものである。 The present invention solves the above-mentioned problems, and provides an underdrain pipe supply box and an underdrain forming device that can be laid without damaging the underdrain pipe (water absorption pipe).

本発明の暗渠パイプ供給ボックスは、暗渠形成装置の掘削部の後部に連続して設けられる暗渠パイプ供給部を形成するボックスであって、ボックス上面の前部に形成する暗渠パイプ挿入口と、ボックス背面の最下部に形成する暗渠パイプ引出口と、暗渠パイプ挿入口から挿入され暗渠パイプ引出口から引き出されるボックス内の暗渠パイプを湾曲させ、暗渠パイプ挿入口や暗渠パイプ引出口における暗渠パイプの折れ曲がり状態を解消するパイプ湾曲部とを備え、暗渠パイプ引出し口から引き出される暗渠パイプに上方から当接するパイプ敷設部を設けるようにしたものである。 The underdrain pipe supply box of the present invention is a box that forms an underdrain pipe supply portion that is continuously provided at the rear portion of the excavated portion of the underdrain forming device, and has an underdrain pipe insertion port formed at the front portion of the upper surface of the box and a box. The underdrain pipe outlet formed at the bottom of the back and the underdrain pipe in the box inserted from the underdrain pipe insertion port and pulled out from the underdrain pipe outlet are curved, and the underdrain pipe is bent at the underdrain pipe insertion port and the underdrain pipe outlet. It is provided with a pipe curved portion that eliminates the state, and a pipe laying portion that abuts from above on the underdrain pipe that is pulled out from the underdrain pipe outlet.

また、暗渠パイプ挿入口の上方に、暗渠パイプ挿入口に連通する筒状の土除け部を設けるようにしたものである。 Further, above the underdrain pipe insertion port, a tubular soil shield that communicates with the underdrain pipe insertion port is provided.

本発明の暗渠形成装置は、圃場に暗渠パイプを埋設して暗渠を形成するものであり、暗渠パイプと暗渠パイプを圃場中に敷設し埋設する暗渠形成手段を装備し圃場を走行する車輌であって、暗渠形成手段が、圃場を掘削する掘削部と、上記暗渠パイプ供給ボックスと、暗渠パイプ供給ボックスから引き出される暗渠パイプが敷設された掘削溝に疎水材を充填する疎水材供給部から構成するようにしたものである。 The underdrain forming device of the present invention is for forming an underdrain by burying an underdrain pipe in a field, and is a vehicle equipped with an underdrain forming means for laying and burying an underdrain pipe and an underdrain pipe in the field and traveling in the field. The underdrain forming means is composed of an excavation part for excavating a field, the above-mentioned underdrain pipe supply box, and a hydrophobic material supply part for filling an excavation ditch in which an underdrain pipe drawn from the underdrain pipe supply box is laid. It was made like this.

本発明によると、暗渠パイプ供給ボックスに挿入される暗渠パイプは、ボックス内にて暗渠パイプ挿入口や暗渠パイプ引出し口において折れ曲がることがないため、暗渠パイプが裂けることを防止できる。これにより、暗渠パイプを波打つことなく敷設・埋設させることができるから、排水機能の低下を防止することができる。また、大きい口径の暗渠パイプを用いた排水用暗渠を形成することができる。 According to the present invention, the underdrain pipe inserted into the underdrain pipe supply box does not bend at the underdrain pipe insertion port or the underdrain pipe outlet in the box, so that the underdrain pipe can be prevented from being torn. As a result, the underdrain pipe can be laid and buried without waviness, so that deterioration of the drainage function can be prevented. Further, it is possible to form a drainage culvert using a culvert pipe having a large diameter.

また、暗渠パイプ挿入口の上方に暗渠パイプ挿入口に連通する筒状の土除け部を設けることにより、掘削部の進行により地表に盛り上がる土が暗渠パイプ挿入口から入り込むことを防止できることから、暗渠パイプを波打つことなく敷設・埋設させることができ、排水機能の低下を確実に防止することができる。 In addition, by providing a tubular soil shield that communicates with the underdrain pipe insertion port above the underdrain pipe insertion port, it is possible to prevent soil that rises to the ground surface from entering through the underdrain pipe insertion port due to the progress of the excavation part. The pipe can be laid and buried without waviness, and the deterioration of the drainage function can be reliably prevented.

本発明の暗渠形成装置の概略図である。It is the schematic of the underdrain formation apparatus of this invention. 本発明の暗渠パイプ供給ボックスの構造を表わす図である。It is a figure which shows the structure of the underdrain pipe supply box of this invention. 図２の暗渠パイプ供給ボックスの比較例を表わす図である。It is a figure which shows the comparative example of the underdrain pipe supply box of FIG. 図２の暗渠パイプ供給ボックスの平面図とＡ−Ａ断面図である。2 is a plan view and a sectional view taken along the line AA of the underdrain pipe supply box of FIG.

本発明は、大口径の暗渠パイプを用いた暗渠排水を実現するものである。 The present invention realizes underdrain drainage using a large-diameter underdrain pipe.

本発明の暗渠パイプ供給ボックス及び暗渠形成装置を図に基づいて説明する。図1は、本発明の暗渠形成装置の概略図である。図２は、本発明の暗渠パイプ供給ボックスの構造を表わす図である。図３は、図２の暗渠パイプ供給ボックスの比較例を表わす図である。図４（ａ）は図２の平面図であり、図４（ｂ）は図２のＡ−Ａ断面図である。
図１の暗渠形成装置１０は、圃場１２に暗渠パイプ１４（吸水管）を埋設して暗渠１６を形成するものであり、暗渠パイプ１４と、暗渠パイプ１４を圃場１２中に敷設し埋設する暗渠形成手段１８を装備し圃場１２を走行する車輌である。暗渠形成手段１８は、圃場１２を掘削する掘削部２０と、掘削部２０の後部に連続して設けられる暗渠パイプ供給部２２と、暗渠パイプ供給部２２から引き出される暗渠パイプ１４が敷設された掘削溝２４（暗渠孔）に疎水材２６を充填する疎水材供給部２８から構成するようにしたものである。
掘削部２０は、掘削部材２０ａと弾丸状の暗渠穿孔体２０ｂとからなる。暗渠形成装置１０が走行すると、掘削部２０により圃場１２に掘削溝２４が形成される。
暗渠パイプ供給部２２は、暗渠形成装置１０に装備されている暗渠パイプ１４を掘削溝２４に敷設するものである。
疎水材供給部２８は、掘削溝２４に疎水材２６を充填するもので、疎水材２６の充填により掘削溝２４に敷設された暗渠パイプ１４は埋設される（図１）。疎水材２６は、掘削溝２４に表土３０直下まで充填されるようになっている（図１）。
暗渠パイプ１４（吸水管）は、多数の通水孔が形成される地中管である。例えば、樹脂製コルゲート管などである。 The underdrain pipe supply box and the underdrain forming device of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of the underdrain forming device of the present invention. FIG. 2 is a diagram showing the structure of the underdrain pipe supply box of the present invention. FIG. 3 is a diagram showing a comparative example of the underdrain pipe supply box of FIG. 4 (a) is a plan view of FIG. 2, and FIG. 4 (b) is a sectional view taken along the line AA of FIG.
The underdrain forming device 10 of FIG. 1 is for forming an underdrain 16 by burying an underdrain pipe 14 (water absorption pipe) in a field 12, and an underdrain pipe 14 and an underdrain pipe 14 are laid and buried in the field 12. It is a vehicle equipped with the forming means 18 and traveling in the field 12. The underdrain forming means 18 is an excavation in which an excavation part 20 for excavating a field 12, an underdrain pipe supply part 22 continuously provided at the rear part of the excavation part 20, and an underdrain pipe 14 drawn out from the underdrain pipe supply part 22 are laid. The groove 24 (underdrain hole) is filled with the hydrophobic material 26 so as to be composed of the hydrophobic material supply unit 28.
The excavation portion 20 includes an excavation member 20a and a bullet-shaped underdrain perforator 20b. When the underdrain forming device 10 travels, the excavation section 20 forms an excavation ditch 24 in the field 12.
The underdrain pipe supply unit 22 lays the underdrain pipe 14 equipped in the underdrain forming device 10 in the excavation ditch 24.
The hydrophobic material supply unit 28 fills the excavation ditch 24 with the hydrophobic material 26, and the underdrain pipe 14 laid in the excavation ditch 24 is buried by filling the hydrophobic material 26 (FIG. 1). The hydrophobic material 26 fills the excavation ditch 24 to just below the topsoil 30 (FIG. 1).
The underdrain pipe 14 (water absorption pipe) is an underground pipe in which a large number of water passage holes are formed. For example, a resin corrugated pipe or the like.

暗渠形成装置１０において、暗渠パイプ供給部２２を形成する暗渠パイプ供給ボックスを備える（図２）。図２の暗渠パイプ供給ボックス２２は、暗渠形成装置１０の掘削部２０の後部に連続して設けられるボックスであって（図４（ａ））、暗渠パイプ１４を掘削溝２４に供給する直方体状の筐体のものである。
また、暗渠パイプ供給ボックス２２は、暗渠パイプ挿入口３２と、暗渠パイプ引出口３４と、パイプ湾曲部３６とを備えるものである。暗渠パイプ挿入口３２は、暗渠パイプ供給ボックス２２上面の前部（掘削部２０に近い位置）に形成されている。暗渠パイプ引出口３４は、暗渠パイプ供給ボックス２２背面の最下部（最下部から引き出された暗渠パイプ１４は掘削溝２４に敷設される。）に形成されている。 The underdrain forming device 10 includes an underdrain pipe supply box that forms the underdrain pipe supply unit 22 (FIG. 2). The underdrain pipe supply box 22 of FIG. 2 is a box continuously provided at the rear of the excavation portion 20 of the underdrain forming device 10 (FIG. 4A), and has a rectangular parallelepiped shape for supplying the underdrain pipe 14 to the excavation groove 24. It belongs to the case of.
Further, the underdrain pipe supply box 22 includes an underdrain pipe insertion port 32, an underdrain pipe outlet 34, and a pipe curved portion 36. The underdrain pipe insertion port 32 is formed at the front portion (position close to the excavation portion 20) on the upper surface of the underdrain pipe supply box 22. The underdrain pipe outlet 34 is formed at the lowermost part of the back surface of the underdrain pipe supply box 22 (the underdrain pipe 14 pulled out from the lowermost part is laid in the excavation ditch 24).

パイプ湾曲部３６は、暗渠パイプ挿入口３２から挿入され暗渠パイプ引出口３４から引き出される暗渠パイプ供給ボックス２２内の暗渠パイプ１４を湾曲させ、暗渠パイプ挿入口３２や暗渠パイプ引出口３４における暗渠パイプ１４の折れ曲がり状態を解消するものである（図２）。
図２のパイプ湾曲部３６は、暗渠パイプ挿入口３２と暗渠パイプ引出口３４を繋ぐように設けられている、暗渠パイプ供給ボックス２２内を２つに仕切る仕切り板である。パイプ湾曲部３６は、暗渠パイプ挿入口３２と暗渠パイプ引出口３４との間に略円弧状に形成されている。暗渠パイプ挿入口３２から挿入された暗渠パイプ１４は、パイプ湾曲部３６に接触すると、湾曲する。同時に、暗渠パイプ挿入口３２や暗渠パイプ引出口３４における暗渠パイプ１４の折れ曲がり状態を解消する。
パイプ湾曲部３６が無い場合、暗渠パイプ１４は、暗渠パイプ挿入口３２から暗渠パイプ引出し口３４まで直線状に伸び、暗渠パイプ挿入口３２や暗渠パイプ引出し口３４において折れ曲がる（図３）。この折れ曲がった状態で暗渠パイプ１４が引き出されると、暗渠パイプ１４が破損する。パイプ湾曲部３６を設けることにより、図３において暗渠パイプ挿入口３２から暗渠パイプ引出し口３４まで直線状に引っ張られる暗渠パイプ１４が、パイプ湾曲部３６に接触して湾曲する。これにより、暗渠パイプ挿入口３２や暗渠パイプ引出口３４における暗渠パイプ１４の折れ曲がり状態は発生しない。すなわち、暗渠パイプ１４の折れ曲がり状態を解消することができる。
なお、パイプ湾曲部３６の形態は、上記形態又は湾曲手段に限定されるものではない。暗渠パイプ挿入口３２から挿入された暗渠パイプ１４が、パイプ湾曲部３６に接触することで湾曲するような形態又は湾曲手段であれば足りる。また、暗渠パイプ供給ボックス２２内において湾曲する暗渠パイプ１４の曲げ半径が、暗渠パイプ１４の許容曲げ半径より小さくならないように設定されているものとする。 The pipe curved portion 36 bends the underdrain pipe 14 in the underdrain pipe supply box 22 inserted from the underdrain pipe insertion port 32 and pulled out from the underdrain pipe outlet 34, and the underdrain pipe at the underdrain pipe insertion port 32 and the underdrain pipe outlet 34. It eliminates the bent state of 14 (Fig. 2).
The pipe curved portion 36 of FIG. 2 is a partition plate that divides the inside of the underdrain pipe supply box 22 into two, which is provided so as to connect the underdrain pipe insertion port 32 and the underdrain pipe outlet 34. The pipe curved portion 36 is formed in a substantially arc shape between the underdrain pipe insertion port 32 and the underdrain pipe outlet 34. The underdrain pipe 14 inserted from the underdrain pipe insertion port 32 bends when it comes into contact with the pipe curved portion 36. At the same time, the bent state of the underdrain pipe 14 at the underdrain pipe insertion port 32 and the underdrain pipe outlet 34 is eliminated.
When there is no pipe curved portion 36, the underdrain pipe 14 extends linearly from the underdrain pipe insertion port 32 to the underdrain pipe outlet 34, and bends at the underdrain pipe insertion port 32 and the underdrain pipe outlet 34 (FIG. 3). If the underdrain pipe 14 is pulled out in this bent state, the underdrain pipe 14 is damaged. By providing the pipe curved portion 36, the underdrain pipe 14 pulled linearly from the underdrain pipe insertion port 32 to the underdrain pipe outlet 34 in FIG. 3 comes into contact with the pipe curved portion 36 and is curved. As a result, the bent state of the underdrain pipe 14 at the underdrain pipe insertion port 32 and the underdrain pipe outlet 34 does not occur. That is, the bent state of the underdrain pipe 14 can be eliminated.
The form of the pipe bending portion 36 is not limited to the above form or the bending means. It suffices if the underdrain pipe 14 inserted from the underdrain pipe insertion port 32 has a form or a bending means that bends when it comes into contact with the pipe bending portion 36. Further, it is assumed that the bending radius of the underdrain pipe 14 curved in the underdrain pipe supply box 22 is set so as not to be smaller than the allowable bending radius of the underdrain pipe 14.

上記構成により、暗渠パイプ供給ボックス２２内に挿入される暗渠パイプ１４は、暗渠形成装置１０の走行時に、暗渠パイプ供給ボックス２２内で弧を描いて曲がり（図２）、掘削部２０により圃場１２に形成される掘削溝２４に敷設され埋設される（図２、図４）。挿入される暗渠パイプ１４は、挿入口３２及び引出し口３４において折れ曲がることはなく、暗渠パイプ１４が破損する（例えば、裂ける）ことはない。これにより、暗渠パイプ１４を波打つことなく敷設・埋設させることができるから、暗渠１６の排水機能の低下を防止することができる。また、大きい口径の暗渠パイプ１４を用いた暗渠１６を形成することができる。
なお、本実施例の暗渠パイプ供給ボックス２２は、下部を開放しているが（図４（ｂ））、閉じているものであってもよい。 With the above configuration, the underdrain pipe 14 inserted into the underdrain pipe supply box 22 bends in an arc in the underdrain pipe supply box 22 when the underdrain forming device 10 is running (FIG. 2), and the field 12 is formed by the excavation section 20. It is laid and buried in the excavation ditch 24 formed in (FIGS. 2 and 4). The underdrain pipe 14 to be inserted does not bend at the insertion port 32 and the outlet port 34, and the underdrain pipe 14 is not damaged (for example, torn). As a result, the underdrain pipe 14 can be laid and buried without waviness, so that it is possible to prevent deterioration of the drainage function of the underdrain 16. In addition, an underdrain 16 using a large-diameter underdrain pipe 14 can be formed.
Although the lower part of the underdrain pipe supply box 22 of this embodiment is open (FIG. 4B), it may be closed.

暗渠パイプ供給ボックス２２において、暗渠パイプ引出し口３４から引き出される暗渠パイプ１４に上方から当接するパイプ敷設部３８を設ける。
パイプ敷設部３８は、暗渠パイプ引出し口３４から掘削溝２４に引き出される暗渠パイプ１４を掘削溝２４に確実に敷設するものである。掘削溝２４に敷設される暗渠パイプ１４は、疎水材２６によって掘削溝２４に埋設される（図２及び図４）。
なお、暗渠パイプ供給ボックス２２の下部が閉じている場合は、暗渠パイプ供給ボックス２２の側面とパイプ敷設部３８により形成される筒状の空間（すなわち暗渠パイプ引出し口３４）は、暗渠パイプ１４を引き出すことができる十分な広さを有するものとする。 In the underdrain pipe supply box 22, a pipe laying portion 38 that comes into contact with the underdrain pipe 14 drawn from the underdrain pipe outlet 34 from above is provided.
The pipe laying portion 38 is for surely laying the underdrain pipe 14 drawn out from the underdrain pipe outlet 34 into the excavation ditch 24 in the excavation ditch 24. The underdrain pipe 14 laid in the excavation ditch 24 is buried in the excavation ditch 24 by the hydrophobic material 26 (FIGS. 2 and 4).
When the lower part of the underdrain pipe supply box 22 is closed, the tubular space (that is, the underdrain pipe outlet 34) formed by the side surface of the underdrain pipe supply box 22 and the pipe laying portion 38 is the underdrain pipe 14. It shall be large enough to be pulled out.

暗渠パイプ挿入口３２の上方に、暗渠パイプ挿入口３２に連通する筒状の土除け部４０を設けてもよい。土除け部４０は、暗渠形成装置１０（又は掘削部２０）の進行により圃場１２の地表に盛り上がる土１２ａが暗渠パイプ挿入口３２から暗渠パイプ供給ボックス２２内に入り込ことを防止するものである。これにより、地表に盛り上がる土１２ａが暗渠パイプ供給ボックス２２を通じて掘削溝２４に敷かれることにより生じる暗渠パイプ１４の波打ちを防止することができ、暗渠１６の排水機能の低下を確実に防止することができる。 A tubular soil shield 40 communicating with the underdrain pipe insertion port 32 may be provided above the underdrain pipe insertion port 32. The soil shield 40 prevents the soil 12a that rises on the ground surface of the field 12 from entering the underdrain pipe supply box 22 from the underdrain pipe insertion port 32 due to the progress of the underdrain forming device 10 (or the excavation part 20). .. As a result, it is possible to prevent the undulation of the underdrain pipe 14 caused by the soil 12a rising on the ground surface being laid in the excavation ditch 24 through the underdrain pipe supply box 22, and it is possible to reliably prevent the drainage function of the underdrain 16 from deteriorating. it can.

１０ 暗渠形成装置
１２ 圃場
１４ 暗渠パイプ
１６ 暗渠
２０ 掘削部
２２ 暗渠パイプ供給ボックス
２４ 掘削溝
２６ 疎水材
２８ 疎水材供給部
３２ 暗渠パイプ挿入口
３４ 暗渠パイプ引出口
３６ パイプ湾曲部
３８ パイプ敷設部
４０ 土よけ部

10 Underdrain forming device 12 Field 14 Underdrain pipe 16 Underdrain 20 Excavation part 22 Underdrain pipe supply box 24 Excavation ditch 26 Hydrophobic material 28 Hydrophobic material supply part 32 Underdrain pipe insertion port 34 Underdrain pipe outlet 36 Pipe curved part 38 Pipe laying part 40 Soil Ditch

Claims (3)

暗渠形成装置の掘削部の後部に連続して設けられる暗渠パイプ供給部を形成するボックスであって、ボックス上面の前部に形成する暗渠パイプ挿入口と、ボックス背面の最下部に形成する暗渠パイプ引出口と、暗渠パイプ挿入口から挿入され暗渠パイプ引出口から引き出されるボックス内の暗渠パイプを湾曲させ、暗渠パイプ挿入口や暗渠パイプ引出口における暗渠パイプの折れ曲がり状態を解消するパイプ湾曲部とを備え、暗渠パイプ引出し口から引き出される暗渠パイプに上方から当接するパイプ敷設部を設けることを特徴とする暗渠パイプ供給ボックス。 A box that forms a culvert pipe supply section that is continuously provided at the rear of the excavated section of the culvert forming device, and has an culvert pipe insertion port formed at the front of the upper surface of the box and an underdrain pipe formed at the bottom of the back of the box. The outlet and the pipe curved part that bends the underdrain pipe in the box that is inserted from the underdrain pipe insertion port and is drawn out from the underdrain pipe outlet, and eliminates the bent state of the underdrain pipe at the underdrain pipe insertion port and the underdrain pipe outlet. An underdrain pipe supply box characterized by providing a pipe laying portion that comes into contact with the underdrain pipe drawn from the underdrain pipe outlet from above. 暗渠パイプ挿入口の上方に、暗渠パイプ挿入口に連通する筒状の土除け部を設けることを特徴とする請求項１記載の暗渠パイプ供給ボックス。 The underdrain pipe supply box according to claim 1, wherein a tubular soil shield that communicates with the underdrain pipe insertion port is provided above the underdrain pipe insertion port. 圃場に暗渠パイプを埋設して暗渠を形成するものであり、暗渠パイプと暗渠パイプを圃場中に敷設し埋設する暗渠形成手段を装備し圃場を走行する車輌であって、暗渠形成手段が、圃場を掘削する掘削部と、請求項１又は請求項２に記載の暗渠パイプ供給ボックスと、暗渠パイプ供給ボックスから引き出される暗渠パイプが敷設された掘削溝に疎水材を充填する疎水材供給部から構成することを特徴とする暗渠形成装置。


An underdrain pipe is buried in a field to form an underdrain, and a vehicle equipped with an underdrain forming means for laying and burying an underdrain pipe and an underdrain pipe in the field and traveling in the field, and the underdrain forming means is the field. Consists of an excavation section for excavating, the underdrain pipe supply box according to claim 1 or 2, and a hydrophobic material supply section for filling an excavation ditch in which an underdrain pipe drawn from the underdrain pipe supply box is laid. An underdrain forming device characterized by
JP2019086126A 2019-04-26 2019-04-26 Culvert pipe supply box and culvert formation device Pending JP2020180529A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50103116A (en) * 1974-01-21 1975-08-14
JPH1037168A (en) * 1996-07-30 1998-02-10 Yasunori Nara Closed conduit drain pipe burying method and device thereof
JP2000234324A (en) * 1999-02-16 2000-08-29 Noken:Kk Automatic laying device for underdrainage pipe
JP2002167742A (en) * 2000-11-28 2002-06-11 Noken:Kk Automatic laying machine of closed conduit drain pipe
JP2011094448A (en) * 2009-11-02 2011-05-12 Caterpillar Kyushu Kk Culvert drain pipe laying apparatus
JP2011174339A (en) * 2010-02-25 2011-09-08 Caterpillar Kyushu Kk Drain culvert forming apparatus
JP2013144925A (en) * 2013-03-11 2013-07-25 Kubota-C. I Co Ltd Laying device and laying method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50103116A (en) * 1974-01-21 1975-08-14
JPH1037168A (en) * 1996-07-30 1998-02-10 Yasunori Nara Closed conduit drain pipe burying method and device thereof
JP2000234324A (en) * 1999-02-16 2000-08-29 Noken:Kk Automatic laying device for underdrainage pipe
JP2002167742A (en) * 2000-11-28 2002-06-11 Noken:Kk Automatic laying machine of closed conduit drain pipe
JP2011094448A (en) * 2009-11-02 2011-05-12 Caterpillar Kyushu Kk Culvert drain pipe laying apparatus
JP2011174339A (en) * 2010-02-25 2011-09-08 Caterpillar Kyushu Kk Drain culvert forming apparatus
JP2013144925A (en) * 2013-03-11 2013-07-25 Kubota-C. I Co Ltd Laying device and laying method

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