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JP2018115424A - Underground drawing-in method of pipe - Google Patents

Underground drawing-in method of pipe Download PDF

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Publication number
JP2018115424A
JP2018115424A JP2017005098A JP2017005098A JP2018115424A JP 2018115424 A JP2018115424 A JP 2018115424A JP 2017005098 A JP2017005098 A JP 2017005098A JP 2017005098 A JP2017005098 A JP 2017005098A JP 2018115424 A JP2018115424 A JP 2018115424A
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Prior art keywords
pipe
attached
blade
soil
underground
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JP2017005098A
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Japanese (ja)
Inventor
佳邦 内田
Yoshikuni Uchida
佳邦 内田
卓雄 佐藤
Takuo Sato
卓雄 佐藤
裕次 小椋
Yuji Ogura
裕次 小椋
邦彦 平川
Kunihiko Hirakawa
邦彦 平川
守 三好
Mamoru Miyoshi
三好  守
隆太郎 上田
Ryutaro Ueda
隆太郎 上田
裕介 鴨下
Yusuke Kamoshita
裕介 鴨下
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Asuka Soken Co Ltd
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Asuka Soken Co Ltd
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Priority to JP2017005098A priority Critical patent/JP2018115424A/en
Publication of JP2018115424A publication Critical patent/JP2018115424A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an underground drawing-in method of a pipe allowing drawing-in of the pipe with a small tractive force and laying the pipe underground.SOLUTION: In an underground drawing-in method of a pipe, a diameter expanding reamer 5 attached with a pipe rearward is attached to a pipe traction blade attached to the rear part of a construction machine via a string body 4, the pipe traction blade is vertically vibrated to disturb earth and water is supplied into the earth from a water supply pipe 6 attached to a rear part of the pipe traction blade to form clayey earth, the diameter expanding reamer 5 is towed in the clayey earth to reduce the friction resistance, and the pipe is towed and laid underground.SELECTED DRAWING: Figure 1

Description

本発明は、配管の地中引き込み工法であって、特に小さな牽引力で管を一定深さで地中に引込む、配管の地中引き込み工法に関する。   The present invention relates to an underground drawing method for piping, and particularly to an underground drawing method for piping in which a pipe is drawn into the ground at a certain depth with a small traction force.

地中に配管を施工する方法として、バックホウ等の建機を用いて管敷設用の溝を掘削し、溝内部に配管する方法が従来行われてきた。
この従来の工法より高速で管敷設を行う工法として専用建機で管を地中に引き込む工法がある。
As a method of constructing piping in the ground, a method of excavating a pipe laying groove using a construction machine such as a backhoe and piping the inside of the groove has been conventionally performed.
As a method of laying pipes at a higher speed than this conventional method, there is a method of drawing pipes into the ground with a dedicated construction machine.

この配管の地中引き込み工法は、図3に示すようなトラクターなどの建機の後部に管牽引用のブレードを装着し、バイブラトリープロー(Vibratory Plow)と呼ばれる偏芯錘を油圧モータで回転させてブレードに縦方向の振動を発生させながら、ブレード後端下部に繋がれたポリエチレンからなる管(PE管)を地中の一定深さに引き込んで管敷設を行うものである。   This pipe pull-in method is to attach a blade for pipe pulling to the rear of a construction machine such as a tractor as shown in Fig. 3, and rotate an eccentric weight called Vibratory Plow with a hydraulic motor. The pipe is laid by drawing a polyethylene pipe (PE pipe) connected to the lower part of the rear end of the blade to a certain depth in the ground while generating longitudinal vibration in the blade.

この配管の地中引き込み工法は、管敷設を1工程で完了させることができ高能率で経済的な工法であるが、ブレードで土を無理やり押しのけながら管を敷設するため大きな牽引力が必要となり、以下のような問題点が有る。
(1)50mm(2インチ)以下の管は通常タイヤ装着の建機で引込むが、75mm(3インチ)以上の管に対してはクローラー装着の建機が必要となるが、サッカー場やゴルフ場などの軟らかい芝地でクローラー装着の建機を用いて施工を行うとクローラーの凸部が地面に食込み芝を傷めることになる。
(2)クローラー装着の建機を用いても125mm(5インチ)以上の管は、過大な牽引力が必要となるので引込み施工することはできない。
This underground pull-in method of piping is a highly efficient and economical method that can complete pipe laying in one step, but it requires a large traction force to lay the pipe while forcibly pushing the soil with a blade. There are the following problems.
(1) Pipes of 50mm (2 inches) or less are usually pulled in with construction equipment with tires attached, but for pipes of 75mm (3 inches) or more, construction equipment with crawlers is required. If you use a construction machine equipped with a crawler on a soft turf, etc., the crawler's convex part will bite into the ground and damage the turf.
(2) Even with a crawler-equipped construction machine, pipes of 125 mm (5 inches) or more cannot be pulled in because excessive traction is required.

本発明は、小さな牽引力で管を引き込んで地中に敷設することができる、配管の地中引き込み工法を提供することを目的とする。   An object of this invention is to provide the underground drawing-in method of piping which can draw in a pipe | tube with small traction force and can be laid in the ground.

上記目的を達成するためになされた本願の第1発明は、建機の後方に取り付けた管牽引用ブレードに紐体を介して、後方に管を取り付けた拡径リーマを取り付け、前記管牽引用ブレードを縦振動させて土を乱すとともに、前記管牽引用ブレードの後部に取り付けた給水管より土中に水を供給して土を粘土状にし、前記拡径リーマを前記粘土状にした土中に牽引し、摩擦抵抗を減じて管を牽引して地中に敷設する、配管の地中引き込み工法を提供する。   The first invention of the present application, which has been made to achieve the above object, includes a pipe traction blade attached to the rear of a construction machine with a diameter reamer with a pipe attached to the rear via a string body, In the soil in which the blade is longitudinally vibrated and the soil is disturbed, water is supplied into the soil from a water supply pipe attached to the rear part of the pipe towing blade, the soil is made into clay, and the expanded reamer is made into the clay To provide a method of pulling pipes into the ground, pulling the pipes and reducing the frictional resistance and laying them in the ground.

本発明は、上記した課題を解決するための手段により、次のような効果の少なくとも一つを得ることができる。
(1)管牽引用ブレードにより土を乱した土に水を供給して粘土状とし、拡径リーマにより拡径しながら管を牽引するため、小さな牽引力で管を引き込んで地中に敷設することができる。
(2)小さな牽引力で管を引き込むことができるため、管の径が75mm(3インチ)以上であっても、通常タイヤより接地力が弱い芝地用のタイヤを装着した建機であっても施工を行うことができる。
(3)芝地用のタイヤを装着した建機で施工を行うことができるため、サッカー場やゴルフ場などの軟らかい芝地の芝も痛めることがない。
(4)小さな牽引力で管を引き込むことができるため、125mm(5インチ)の径の管も施工することができる。
The present invention can obtain at least one of the following effects by means for solving the above-described problems.
(1) Supply water to the soil where the soil has been disturbed by the blade for pipe pulling and make it into clay, and pull the pipe with a small pulling force and lay it in the ground in order to pull the pipe while expanding the diameter with the expanded reamer. Can do.
(2) Since the pipe can be pulled in with a small traction force, even if the diameter of the pipe is 75mm (3 inches) or more, it is a construction machine equipped with a tire for turf where the ground contact force is weaker than a normal tire. Construction can be performed.
(3) Since construction can be performed with a construction machine equipped with tires for turf, soft turf turf such as a soccer field or a golf course is not damaged.
(4) Since the pipe can be pulled in with a small traction force, a pipe with a diameter of 125 mm (5 inches) can also be constructed.

本発明の配管の地中引き込み工法の施工図Construction drawing of underground pull-in method for piping of the present invention 本発明の配管の地中引き込み工法の施工中の説明図Explanatory drawing during construction of underground drawing method of piping of the present invention 従来の配管の地中引き込み工法の説明図Explanatory drawing of underground piping method for conventional piping

以下、図面を参照しながら本発明の実施の形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[1]配管の地中引き込み工法
本発明の配管の地中引き込み工法は、地表面から所定の深さの土中に管1を敷設するためのものである。
[1] Piping underground construction method The piping underground construction method of the present invention is for laying the pipe 1 in the soil at a predetermined depth from the ground surface.

<1>管
管1はポリエチレンからなるPE管である。
管1は建機2の後方に取り付けた管牽引用ブレード3に紐体4を介して取り付けた拡径リーマ5に取り付ける。
<1> Tube Tube 1 is a PE tube made of polyethylene.
The pipe 1 is attached to a diameter expansion reamer 5 attached to a pipe pulling blade 3 attached to the rear of the construction machine 2 via a string body 4.

<2>管牽引用ブレード
管牽引用ブレード3は、バイブラトリープローにより縦振動させながら土中に貫入可能な建機2用の治具である。
地中で振動することにより、管牽引用ブレード3の周囲の土は乱される。
管牽引用ブレード3の後部には給水管6を沿わせて固定する。
<2> Pipe Pulling Blade The pipe pulling blade 3 is a jig for the construction machine 2 that can penetrate into the soil while being vibrated longitudinally by a vibratory prober.
By vibrating in the ground, the soil around the pipe traction blade 3 is disturbed.
A water supply pipe 6 is fixed along the rear part of the pipe pulling blade 3.

<3>拡径リーマ
拡径リーマ5は、管牽引用ブレード3側から管1を取り付けた後端側にかけて拡径する。
拡径リーマ5の後端側の径は管1と略同径とする。
<3> Diameter Expansion Reamer The diameter expansion reamer 5 expands from the pipe traction blade 3 side to the rear end side where the pipe 1 is attached.
The diameter of the rear end side of the expanded reamer 5 is approximately the same as that of the pipe 1.

[2]施工手順
<1>先行掘削
管1の配管予定箇所の手前で、事前に地面を掘削し、管牽引用ブレード3、拡径リーマ5および管1を地表面から所定の深さに配置する(図2)。
先行掘削せずに、管牽引用ブレード3の貫入に合わせて拡径リーマ5と管1を地中に引き込んでもよい。
[2] Construction procedure <1> Pre-excavation Excavation of the ground in advance of the pipe 1 planned piping location, and placement of the pipe pulling blade 3, the enlarged reamer 5 and the pipe 1 at a predetermined depth from the ground surface (FIG. 2).
The expanded reamer 5 and the pipe 1 may be pulled into the ground in accordance with the penetration of the pipe pulling blade 3 without performing the excavation in advance.

<2>管牽引
管牽引用ブレード3をバイブラトリープローにより縦振動させながら、建機2を進行させて、管1の敷設予定箇所に貫入する。
管牽引用ブレード3に紐体4を介して取り付けた拡径リーマ5および管1は、所定の深さで、管牽引用ブレード3によって乱された地中に引き込まれる。
<2> Pipe pulling While the pipe pulling blade 3 is vibrated longitudinally by a vibratory prober, the construction machine 2 is advanced to penetrate the pipe 1 to be laid.
The enlarged diameter reamer 5 and the pipe 1 attached to the pipe traction blade 3 via the string body 4 are drawn into the ground disturbed by the pipe traction blade 3 at a predetermined depth.

<2.1>給水
管1牽引時には、管牽引用ブレード3の、拡径リーマ5を取り付けた紐体4の位置まで伸びる給水管6により、地中に給水を行う。
給水により、拡径リーマ5の進行方向の、管牽引用ブレード3により乱した土に水を供給して土を軟らかい粘土状とする。
<2.1> Water supply When the pipe 1 is pulled, water is supplied into the ground by the water supply pipe 6 extending to the position of the string body 4 to which the diameter reamer 5 is attached.
By supplying water, water is supplied to the soil disturbed by the pipe pulling blade 3 in the traveling direction of the diameter reamer 5 to make the soil soft clay.

<2.2>拡径リーマによる拡径
拡径リーマ5により、粘土状となった土を押し広げて拡径する。
拡径リーマ5の後端側の径は管1と略同径であるため、拡径リーマ5通過後の粘土状の土は、管1と略同径まで押し広げられる。
縦振動している管牽引用ブレード3によりその周囲の土が乱されているところに管牽引用ブレード3に取付けた給水管6から水を供給することにより、土を軟らかい粘土状にし、拡径リーマ5および管1の摩擦抵抗を減少させる。
さらに管1の前に配置した拡径リーマ5により拡径されているため、管1を引き込む際の土の変形抵抗を減少することにより、小さな牽引力で管1を引き込んで地中に敷設することができる。
<2.2> Diameter Expansion by Diameter Expansion Reamer With the diameter expansion reamer 5, the clay-like soil is pushed and expanded.
Since the diameter of the rear end side of the expanded reamer 5 is substantially the same as that of the tube 1, the clay-like soil after passing through the expanded reamer 5 is expanded to approximately the same diameter as the tube 1.
By supplying water from a water supply pipe 6 attached to the pipe pulling blade 3 to the place where the surrounding soil is disturbed by the pipe pulling blade 3 that vibrates in the longitudinal direction, the soil is made soft clay and expanded in diameter. The frictional resistance of the reamer 5 and the pipe 1 is reduced.
Further, since the diameter of the pipe 1 is increased by a diameter reamer 5 disposed in front of the pipe 1, the pipe 1 is drawn with a small traction force and laid in the ground by reducing the deformation resistance of the soil when the pipe 1 is drawn. Can do.

小さな牽引力で管1を引き込むことができるため、管1の径が75mm(3インチ)以上であっても、通常タイヤより接地力が弱い芝地用のタイヤを装着した建機2であっても施工を行うことができる。
そして、芝地用のタイヤを装着した建機2で施工を行うことができるため、サッカー場やゴルフ場などの軟らかい芝地の芝も痛めることがない。
また、小さな牽引力で管1を引き込むことができるため、125mm(5インチ)の径の管1も引き込み施工することができる。
Since the pipe 1 can be pulled in with a small traction force, even if the diameter of the pipe 1 is 75 mm (3 inches) or more, even in the construction equipment 2 equipped with tires for turf where the ground contact force is weaker than normal tires Construction can be performed.
And since construction can be carried out with the construction machine 2 equipped with tires for turf, soft turf turf such as a soccer field or a golf course is not damaged.
Moreover, since the pipe 1 can be pulled in with a small traction force, the pipe 1 having a diameter of 125 mm (5 inches) can also be pulled in.

1 管
2 建機
3 管牽引用ブレード
4 紐体
5 拡径リーマ
6 給水管
DESCRIPTION OF SYMBOLS 1 Pipe 2 Construction machinery 3 Pipe towing blade 4 String body 5 Expanded reamer 6 Water supply pipe

Claims (1)

建機の後方に取り付けた管牽引用ブレードに紐体を介して、後方に管を取り付けた拡径リーマを取り付け、
前記管牽引用ブレードを縦振動させて土を乱すとともに、前記管牽引用ブレードの後部に取り付けた給水管より土中に水を供給して土を粘土状にし、
前記拡径リーマを前記粘土状にした土中に牽引し、摩擦抵抗を減じて管を牽引して地中に敷設する、
配管の地中引き込み工法。
A diameter reamer with a pipe attached to the rear is attached to the pipe pulling blade attached to the rear of the construction machine via a string.
The pipe traction blade is vibrated longitudinally to disturb the soil, and water is supplied into the soil from a water supply pipe attached to the rear of the pipe traction blade to make the soil clay.
Tow the expanded reamer into the clay-like soil, reduce the frictional resistance and pull the pipe to lay in the ground,
Piping underground drawing method.
JP2017005098A 2017-01-16 2017-01-16 Underground drawing-in method of pipe Pending JP2018115424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017005098A JP2018115424A (en) 2017-01-16 2017-01-16 Underground drawing-in method of pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017005098A JP2018115424A (en) 2017-01-16 2017-01-16 Underground drawing-in method of pipe

Publications (1)

Publication Number Publication Date
JP2018115424A true JP2018115424A (en) 2018-07-26

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ID=62983605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017005098A Pending JP2018115424A (en) 2017-01-16 2017-01-16 Underground drawing-in method of pipe

Country Status (1)

Country Link
JP (1) JP2018115424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019244781A1 (en) 2018-06-18 2019-12-26 Canon Kabushiki Kaisha Image capture apparatus and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019244781A1 (en) 2018-06-18 2019-12-26 Canon Kabushiki Kaisha Image capture apparatus and control method thereof

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