JP2000054789A - Laying method of pipe - Google Patents

Laying method of pipe

Info

Publication number
JP2000054789A
JP2000054789A JP10221991A JP22199198A JP2000054789A JP 2000054789 A JP2000054789 A JP 2000054789A JP 10221991 A JP10221991 A JP 10221991A JP 22199198 A JP22199198 A JP 22199198A JP 2000054789 A JP2000054789 A JP 2000054789A
Authority
JP
Japan
Prior art keywords
pipe
supply pipe
excavation
cylinder
laying method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10221991A
Other languages
Japanese (ja)
Other versions
JP3819600B2 (en
Inventor
Yukinobu Satake
志伸 佐竹
Masumi Kobayashi
真澄 小林
Wataru Inomata
渉 猪股
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Gas Co Ltd
Original Assignee
Tokyo Gas Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Gas Co Ltd filed Critical Tokyo Gas Co Ltd
Priority to JP22199198A priority Critical patent/JP3819600B2/en
Publication of JP2000054789A publication Critical patent/JP2000054789A/en
Application granted granted Critical
Publication of JP3819600B2 publication Critical patent/JP3819600B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a laying method for pipes through which excavation and drawing of supply pies are continuously carried out to reduce the working man-days and the construction time. SOLUTION: An excavating means 2 is thrusted from the ground to the underground and a PE pipe corresponding to a new pipe is inserted in a propulsion hole formed by the excavating means 2, in this laying method for pipes. One end of the supply pipe 5 as a newly laying object is unified with an excavating and propelling device 1 integrally formed with an extensible cylinder 3 equipped with the excavating means 3 at the front end and formed of a self- mobile traveling body 4. The ground is excavated by the excavating means 2 when stretching a cylinder 3 and the traveling body 4 is advanced toward the excavating means 2 when contracting the cylinder 3 to pull the supply pipe 5 integrally connected thereto.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、新たに敷設される
供給管等を対象とした配管敷設工法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe laying method for a newly laid supply pipe or the like.

【0002】[0002]

【従来の技術】従来、道路下に埋設されている本支管か
ら民地内の需要家に向けガスを供給する管路として供給
管が敷設されている。
2. Description of the Related Art Conventionally, a supply pipe has been laid as a conduit for supplying gas from a main pipe buried under a road to a customer in a private area.

【0003】供給管は、本支管に形成された分岐開口に
取り付けられているサービスチーを介して敷設方向の一
端が連結され、敷設方向の他端が需要家先のメータ立管
に連結されるようになっている。供給管の新設に際して
は、本支管が埋設されている箇所および民地内でメータ
立管との連結が行える箇所にそれぞれ地表面に開口する
発進用および到達用の立抗を掘削したうえで、それら立
抗間に供給管を挿通し、供給管の敷設方向一端を本支管
の分岐部に取り付けられているサービスチーに連結する
一方、敷設方向他端をメータ立管に連結する作業が行わ
れている。供給管を新設するためには、供給管を挿通す
るための孔を形成しながら掘進する丸鋼ロッドやスクリ
ューオーガ等の掘進ロッドと、この掘進ロッドを推進お
よび引き戻すための駆動源として油圧機関、内燃機関、
エアモータや電動モータ等のいずれかを備えた推進機本
体等とで構成された掘削推進装置が準備される。
[0003] One end in the laying direction is connected to a supply pipe via a service tee attached to a branch opening formed in the main pipe, and the other end in the laying direction is connected to a meter stand at the customer's destination. It has become. When constructing new supply pipes, excavate starting and reaching stands that open to the ground surface at the place where the main pipe is buried and at the place where connection with the meter stand can be made in private land. The work of inserting the supply pipe between the standing pipes and connecting one end in the laying direction of the supply pipe to the service tee attached to the branch of the main pipe, and connecting the other end in the laying direction to the meter standing pipe is performed. I have. In order to newly install a supply pipe, a drill rod such as a round steel rod or a screw auger that excavates while forming a hole for inserting the supply pipe, and a hydraulic engine as a drive source for propelling and pulling back the excavation rod, Internal combustion engine,
An excavation propulsion device including a propulsion device main body including any of an air motor and an electric motor is prepared.

【0004】ところで、近年では、地震等の災害時に発
生する外力によって供給管が損傷するのを防止するため
に、従来用いられていた鋼管に比べて可撓性を有するポ
リエチレン管(PE管)等の合成樹脂管が用いられるよ
うになってきている。このようなPE管を敷設する場合
も含めて供給管を新設する場合も上記作業が行われてい
る。
In recent years, in order to prevent the supply pipe from being damaged by an external force generated at the time of a disaster such as an earthquake, a polyethylene pipe (PE pipe) or the like, which is more flexible than a conventionally used steel pipe, has been used. Is being used. The above-mentioned work is performed also when newly installing a supply pipe including the case where such a PE pipe is laid.

【0005】[0005]

【発明が解決しようとする課題】しかし、上述した従来
の敷設工事においては、敷設工事にかかる作業時間が長
大化する虞がある。つまり、掘削推進装置は上述したよ
うな種々の装置を備えている関係上、狭い立坑内での設
置や立坑内への運搬に要する作業が多くなる。また、推
進ロッドは、推進長さに応じて継ぎ足されることになる
ので、推進距離が長くなるに比例して推進時間もさるこ
とながら、その継ぎ足し作業および継ぎ足したものを取
り外して回収するための作業が多くなることによっても
作業時間が長くなる。しかも、推進ロッドの推進動作と
継ぎ足し操作やロッドの回収操作が狭い空間の立抗内で
行われる関係上、作業者への労力負担も大きくなる。つ
まり、立坑は、地面の開削幅をむやみに大きくできない
という制約があるものであり、その開削幅が、継ぎ足し
あるいは回収されるロッドの長さに近いとそれら継ぎ足
しや回収作業のための余裕幅が少なくなり、これによっ
て立坑内での作業性が悪くなる。
However, in the above-mentioned conventional laying work, there is a possibility that the work time required for the laying work is lengthened. In other words, since the excavation propulsion device is provided with the various devices as described above, the work required for installation in a narrow shaft and transportation to the shaft is increased. Also, since the propulsion rod is extended according to the propulsion length, the extension work and the work for removing and recovering the extension are performed while increasing the propulsion time in proportion to the extension of the propulsion distance. Increases the working time. In addition, since the propulsion operation of the propulsion rod, the extension operation, and the rod collection operation are performed within the space of the narrow space, the labor burden on the operator increases. In other words, shafts have the restriction that the ground excavation width cannot be increased unnecessarily.If the excavation width is close to the length of the rod to be added or recovered, the margin for the addition or recovery work will be limited. And the workability in the shaft becomes poor.

【0006】本発明は、上記従来の配管の敷設工法にお
ける問題に鑑み、作業工数を低減することで作業時間を
短縮することが可能な配管の敷設工法を提供することに
ある。特に、掘進と供給管の引き込み動作とを連続して
行える敷設工法を提供することにある。
The present invention has been made in view of the above-mentioned problems in the conventional pipe laying method, and has as its object to provide a pipe laying method capable of shortening the working time by reducing the number of working steps. In particular, it is an object of the present invention to provide a laying method capable of continuously performing excavation and a drawing operation of a supply pipe.

【0007】[0007]

【課題を解決するための手段】この目的を達成するた
め、請求項1記載の発明は、地表から地中に向け掘進手
段を推進させ、該掘進手段により形成された推進孔に新
たな管材に相当するPE管を挿通する配管敷設工法であ
って、先端に掘進手段を装備した伸縮可能なシリンダと
一体とされ、自走可能な走行体からなる掘削推進装置に
対して新設対象の供給管の一端を一体化し、上記シリン
ダの伸長時に上記掘進手段による掘進を行い、上記シリ
ンダの収縮時、上記走行体を上記掘進手段側に走行させ
ることによりこれと一体化されている上記供給管を引き
込むことを特徴としている。
In order to achieve this object, the invention according to claim 1 is to promote a digging means from the surface of the ground to the ground, and to form a new pipe material in a propulsion hole formed by the digging means. A pipe laying method for inserting a corresponding PE pipe, which is integrated with an extensible cylinder equipped with excavation means at the tip, and is used to supply a new target pipe to a drilling propulsion device consisting of a self-propelled traveling body. One end is integrated, the excavation is performed by the excavating means when the cylinder is extended, and when the cylinder is contracted, the traveling body is moved toward the excavating means so that the supply pipe integrated therewith is pulled in. It is characterized by.

【0008】請求項2記載の発明は、請求項1記載の配
管敷設工法において、上記シリンダに内装されている伸
縮ロッドのピストンを油圧モータで構成し、該伸縮ロッ
ドを伸長させながら回転させて掘進することを特徴とし
ている。
According to a second aspect of the present invention, in the pipe laying method according to the first aspect, the piston of the telescopic rod provided in the cylinder is constituted by a hydraulic motor, and the extensible rod is rotated while being extended while excavating. It is characterized by doing.

【0009】[0009]

【作用】請求項1および2記載の発明では、伸長しなが
ら掘進する掘進手段が伸長し終わると、走行体が自走し
て掘進手段側に向け走行することで掘削推進装置に一体
化されている供給管を引き込むことができるので、掘進
およびこれに引き続いて供給管の引き込み動作を繰り返
すだけで従来の工法のようにロッドの継ぎ足しや回収作
業を不要にすることができる。
According to the first and second aspects of the present invention, when the excavating means that excavates while extending is completed, the traveling body travels toward the excavating means by itself and is integrated with the excavation propulsion device. Since the supply pipe can be pulled in, the excavation and the subsequent pulling-in operation of the supply pipe can be repeated, thereby eliminating the need for adding and collecting rods as in the conventional method.

【0010】[0010]

【実施例】以下、図示実施例により本発明の詳細を説明
する。
BRIEF DESCRIPTION OF THE DRAWINGS FIG.

【0011】図1は、本発明実施例による敷設工法に用
いられる掘削推進装置の構成を説明するための模式図で
あり、同図において、掘削推進装置1は、先端に掘進手
段となる切削ビット2が固定されている伸縮ロッド3A
を備えた油圧シリンダ3と、この油圧シリンダ3の後部
に一体化されて外表面に露出する複数のキャタピラ4A
を備えた走行体4と、この走行体4の後方に一体化され
る供給管5とで構成されている。切削ビット2は、テー
パーコーン形状をなし、その底部が伸縮ロッド3Aに固
定され、テーパ面には、多数の切削部となる凸部ビット
が設けられ、土中を掘削できるようになっている。
FIG. 1 is a schematic diagram for explaining the configuration of an excavation propulsion device used in the laying method according to an embodiment of the present invention. In FIG. Telescopic rod 3A to which 2 is fixed
And a plurality of caterpillars 4A integrated with the rear part of the hydraulic cylinder 3 and exposed on the outer surface
And a supply pipe 5 integrated behind the traveling body 4. The cutting bit 2 has a tapered cone shape, the bottom of which is fixed to the telescopic rod 3A, and the tapered surface is provided with a number of convex bits serving as a large number of cutting portions so that the soil can be excavated.

【0012】油圧シリンダ3は、図2に示す内部構造を
備えている。図2において、油圧シリンダ3に内装され
ている伸縮ロッド3Aは、ピストンが油圧モータ(便宜
上、符号3A1で示す)で構成されており、この油圧モ
ータ3A1は、出力軸が伸縮ロッド3Aに相当してい
る。油圧モータ3Aは、油圧シリンダ3における伸長用
油室に連通する吸入口3A1aと、油圧シリンダ3にお
ける収縮用油室に連通する吐出口3A1bとが形成され
ている。本実施例の場合、油圧モータ3A1が内接ある
いは外接形式のギヤモータが用いられている。油圧モー
タ3の出力軸の支持部には一方向クラッチ(図示され
ず)が介在させてあり、この一方向クラッチは、油圧シ
リンダ3の伸長用油室にオイルが導入されたときにのみ
ギヤの回転が伝達され、収縮用油室にオイルが導入され
たときにはギヤのみが空転して伸縮ロッド3Aには回転
を伝達しないようになっている。油圧モータ3A1は、
吸入口3A1aから吐出口3A1bに至る途中の油路が
ギヤを回転させることができる方向に変換されており、
伸長用油室から導入されるオイルが収縮用油室に流れ込
む際のオリフィス作用(伸長用油室と吸入口との面積比
による絞り効果)を設定することにより、伸縮ロッド3
Aが伸長する際に土壌切削に必要な回転トルクが得られ
る圧力のオイルが導入されて回転することができるよう
になっている。
The hydraulic cylinder 3 has an internal structure shown in FIG. In FIG. 2, a telescopic rod 3A provided inside a hydraulic cylinder 3 has a piston constituted by a hydraulic motor (indicated by reference numeral 3A1 for convenience), and the output shaft of the hydraulic motor 3A1 corresponds to the telescopic rod 3A. ing. The hydraulic motor 3 </ b> A has a suction port 3 </ b> A <b> 1 a communicating with the extension oil chamber in the hydraulic cylinder 3 and a discharge port 3 </ b> A1 b communicating with the contraction oil chamber in the hydraulic cylinder 3. In the case of the present embodiment, an internal or external gear motor is used for the hydraulic motor 3A1. A one-way clutch (not shown) is interposed in the support portion of the output shaft of the hydraulic motor 3, and the one-way clutch only operates when the oil is introduced into the extension oil chamber of the hydraulic cylinder 3. When the rotation is transmitted and the oil is introduced into the contraction oil chamber, only the gear idles and the rotation is not transmitted to the telescopic rod 3A. The hydraulic motor 3A1 is
The oil passage on the way from the suction port 3A1a to the discharge port 3A1b is converted to a direction in which the gear can be rotated,
By setting the orifice action (throttle effect based on the area ratio between the expansion oil chamber and the suction port) when the oil introduced from the expansion oil chamber flows into the contraction oil chamber,
When A expands, oil is introduced at a pressure enough to obtain a rotational torque required for soil cutting, and can be rotated.

【0013】一方、図1において走行体4は、油圧シリ
ンダ3の後部が一体化された円筒状部材で構成され、そ
の外周面には、周方向に沿って複数箇所にキャタピラ4
Aが設けられている。キャタピラ4Aは、掘進手段側に
駆動輪を有しており、この駆動輪が油圧モータ(図示さ
れず)により回転駆動されて切削ビット2側に向け走行
することができるようになっている。上記油圧モータ3
A1およびキャタピラ4Aの油圧モータへの送油ホース
(図1中、符号P1、P2で示す部材)は、後述する供
給管5内に挿通されて各モータに接続される。
On the other hand, in FIG. 1, the traveling body 4 is composed of a cylindrical member having a rear portion integrated with the hydraulic cylinder 3, and its outer peripheral surface is provided with a plurality of caterpillars 4 at a plurality of positions along the circumferential direction.
A is provided. The caterpillar 4A has a drive wheel on the side of the excavating means, and the drive wheel is rotatably driven by a hydraulic motor (not shown) and can travel toward the cutting bit 2 side. The above hydraulic motor 3
A1 and oil supply hoses (members indicated by reference numerals P1 and P2 in FIG. 1) to the hydraulic motors of the caterpillar 4A are inserted into a supply pipe 5 described later and connected to each motor.

【0014】走行体4における油圧シリンダ3が一体化
されている側と反対側の端部には供給管5の端部を一体
支持するためのチャック部材6が取り付けられている。
チャック部材6は、図1に示すように、供給管5の内面
に掛け止め可能な鈎部を有しており、この鈎部により供
給管5が走行体4の後端で一体化される。
A chuck member 6 for integrally supporting the end of the supply pipe 5 is attached to the end of the traveling body 4 opposite to the side where the hydraulic cylinder 3 is integrated.
As shown in FIG. 1, the chuck member 6 has a hook that can be hooked on the inner surface of the supply pipe 5, and the supply pipe 5 is integrated at the rear end of the traveling body 4 by the hook.

【0015】供給管5は、地上に設置されたリールに倦
装され、そのリールからの一端が繰り出されてチャック
部材6に取り付けられる。
The supply pipe 5 is fitted on a reel installed on the ground, and one end from the reel is fed out and attached to the chuck member 6.

【0016】本実施例は以上のような構成の掘削推進装
置1を用いて次の手順により供給管5の敷設が行われ
る。 (1)予め供給管5の敷設区間の両端に形成された発進
立抗および到達立抗(図示されず)のうちの発進立抗内
に掘削推進装置1を設置し、かつ、掘進手段2の初期掘
進時の反力を受ける支持部材(図示されず)を不動状態
に設けて敷設用推進孔形成位置に掘進手段2を位置決め
する。
In the present embodiment, the supply pipe 5 is laid by the following procedure using the excavation propulsion apparatus 1 having the above configuration. (1) The excavation propulsion device 1 is installed in the starting stand of the starting stand and the reaching stand (not shown) formed at both ends of the laying section of the supply pipe 5 in advance, and A support member (not shown) for receiving a reaction force at the time of initial excavation is provided in an immovable state, and the excavation means 2 is positioned at a position where the propulsion hole for laying is formed.

【0017】(2)油圧シリンダ3の伸縮ロッド3Aを
伸長させると共に油圧モータ3A1への送油により掘進
手段である切削ビット2を回転させて掘進させる。この
場合には、油圧シリンダ3の伸長用油室に送油されると
ともに収縮用油室から排油されることにより伸縮ロッド
3Aが伸長する一方、伸縮ロッド3Aが出力軸となる油
圧モータ3A1の吸入口が伸長用油室に連通しているこ
とにより伸長用油室に送油されたオイルが吸入口に導入
され、さらに吐出口から排出されるオイルが収縮用油室
に流れることで油圧モータ3A1が駆動され、切削ビッ
ト2が回転する。
(2) The extensible rod 3A of the hydraulic cylinder 3 is extended and the cutting bit 2 serving as the excavating means is rotated by oil supply to the hydraulic motor 3A1 to excavate. In this case, the telescopic rod 3A is expanded by being supplied to the oil chamber for extension of the hydraulic cylinder 3 and discharged from the oil chamber for contraction, while the hydraulic motor 3A1 having the telescopic rod 3A as an output shaft. Since the suction port communicates with the extension oil chamber, the oil sent to the extension oil chamber is introduced into the suction port, and the oil discharged from the discharge port flows into the contraction oil chamber, so that the hydraulic motor is driven. 3A1 is driven, and the cutting bit 2 rotates.

【0018】(3)油圧シリンダ3の伸縮ロッド3Aが
伸長し終わると、伸縮ロッド3Aは伸長したままで油圧
シリンダ3の収縮用油室内に送油され、伸長用油室から
排油されると同時に走行体4がキャタピラ4Aの駆動を
介して切削ビット2側に向け移動する。この場合には、
走行体4が、いわゆる掘進方向前側に移動するのに合わ
せて油圧シリンダ3が収縮するので、走行体4の後端に
位置する供給管5が牽引されて引き込まれる。この状態
は図3に示すとおりであり、油圧シリンダ3が収縮した
距離(図3中、符号Lで示す距離)に相当する供給管5
の引き込み量が得られる。なお、図1および図3におい
て符号S1で示す位置は、油圧シリンダ3の伸長および
走行体4の非走行時における走行体4の後部位置を示し
ており、図3において符号S2で示す位置は、油圧シリ
ンダ3の収縮および走行体4が走行し終わった時点での
走行体4の後部位置であり、これら各位置S1、S2と
の距離差(L)が供給管5の引き込み量となる。
(3) When the telescopic rod 3A of the hydraulic cylinder 3 is extended, the telescopic rod 3A is fed into the contracting oil chamber of the hydraulic cylinder 3 while being extended, and is discharged from the extending oil chamber. At the same time, the traveling body 4 moves toward the cutting bit 2 via the driving of the track 4A. In this case,
The hydraulic cylinder 3 contracts as the traveling body 4 moves forward in the so-called digging direction, so that the supply pipe 5 located at the rear end of the traveling body 4 is pulled and pulled. This state is as shown in FIG. 3, and the supply pipe 5 corresponding to the distance (the distance indicated by the symbol L in FIG. 3) in which the hydraulic cylinder 3 contracts.
Is obtained. In FIGS. 1 and 3, the position indicated by reference numeral S1 indicates the rear position of the traveling body 4 when the hydraulic cylinder 3 is extended and the traveling body 4 is not traveling, and the position indicated by reference numeral S2 in FIG. This is the rear position of the traveling body 4 at the time when the hydraulic cylinder 3 has contracted and the traveling body 4 has finished traveling, and the distance difference (L) between these positions S1 and S2 is the drawing amount of the supply pipe 5.

【0019】以下、(2)および(3)の処理が繰り返
されて供給管5が敷設区間全域に亘って引き込まれる。
Thereafter, the processing of (2) and (3) is repeated, and the supply pipe 5 is drawn in over the entire laying section.

【0020】なお、掘削推進装置1の進行方向は、例え
ば走行体4内に発信器を装備し、この発信器からの信号
を地上で受信することにより掘進深さや方向を識別する
ことも可能である。
The traveling direction of the excavation propulsion device 1 can be determined, for example, by installing a transmitter in the traveling body 4 and receiving a signal from the transmitter on the ground to identify the excavation depth and direction. is there.

【0021】以上のような実施例では、切削ビット2に
よって供給管5の推進孔が形成されることになるが、推
進孔は切削ビット2による土中の拡径作業により形成さ
れるので、排土の発生がきわめて少ない。
In the embodiment described above, the propulsion hole of the supply pipe 5 is formed by the cutting bit 2. However, since the propulsion hole is formed by the diameter expanding operation in the soil by the cutting bit 2, the discharge hole is formed. Very little soil is generated.

【0022】また、到達立抗に達した掘削推進装置1
は、油圧シリンダ3および走行体4を供給管5から分離
した後、送油ホースを供給管5内から取り出すだけで敷
設作業を終了することができる。
The excavation propulsion device 1 which has reached the reaching standing
After the hydraulic cylinder 3 and the traveling body 4 are separated from the supply pipe 5, the laying operation can be completed only by removing the oil supply hose from the supply pipe 5.

【0023】なお、本発明は上述した実施例の如く、供
給管の新設等のように発進立抗と到達立抗との間の管路
敷設を対象とすることに限らず、このような立抗を形成
しない場合がある本支管からの分岐管の敷設等にも適用
することもちろん可能である。
It should be noted that the present invention is not limited to the installation of a pipeline between the starting stand and the arrival stand, such as a new supply pipe, as in the above-described embodiment. Of course, the present invention can be applied to the laying of a branch pipe from the main pipe, which may not form a resistance.

【0024】[0024]

【発明の効果】以上の実施例からも明らかなように、請
求項1および2記載の発明によれば、伸長しながら掘進
する掘進手段が伸長し終わると、走行体が自走して掘進
手段側に向け走行することで掘削推進装置に一体化され
ている供給管を引き込むことができるので、掘進および
これに引き続いて供給管の引き込み動作を繰り返すだけ
で従来の工法のようにロッドの継ぎ足しや回収作業を不
要にすることができる。これにより、ロッドの継ぎ足し
や回収に要する時間をなくして敷設作業に必要な時間を
短縮することができる。特に、このような継ぎ足しや回
収作業を不要にすることで、従来の工法に比べて、敷設
作業時間が1/3程度に低減できる。
As is apparent from the above embodiments, according to the first and second aspects of the present invention, when the digging means for digging while extending is completely extended, the traveling body travels by itself and the digging means By running toward the side, the supply pipe integrated with the excavation propulsion device can be pulled in, so simply excavating and subsequently repeating the pulling-in operation of the supply pipe can be performed as in the conventional construction method. Collection work can be made unnecessary. Thus, the time required for the laying work can be reduced by eliminating the time required for adding and collecting the rods. In particular, by eliminating the need for such additional work or collection work, the laying time can be reduced to about 1 / as compared with the conventional construction method.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明実施例による配管敷設工法に用いられる
掘削推進装置の側面図である。
FIG. 1 is a side view of an excavation propulsion device used in a pipe laying method according to an embodiment of the present invention.

【図2】図1に示した掘削推進装置の内部構造の一部を
説明するための模式図である。
FIG. 2 is a schematic diagram for explaining a part of the internal structure of the excavation propulsion device shown in FIG.

【図3】図1に示した掘削推進装置を用いた敷設工法の
一態様を説明するための側面図である。
FIG. 3 is a side view for explaining one embodiment of a laying method using the excavation propulsion device shown in FIG.

【符号の説明】[Explanation of symbols]

1 掘削推進装置 2 掘進手段に相当する切削ビット 3 油圧シリンダ 3A 伸縮ロッド 3A1 油圧モータ 4 走行体 4A キャタピラ 5 新たな管材に相当するPE管を用いた供給
管 6 チャック部材 P1、P2 送油ホース
DESCRIPTION OF SYMBOLS 1 Excavation propulsion apparatus 2 Cutting bit equivalent to excavation means 3 Hydraulic cylinder 3A Telescopic rod 3A1 Hydraulic motor 4 Traveling body 4A Caterpillar 5 Supply pipe using PE pipe equivalent to new pipe material 6 Chuck members P1, P2 Oil supply hose

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 地表から地中に向け掘進手段を推進さ
せ、該掘進手段により形成された推進孔に新たな供給管
を挿通する配管敷設工法であって、 先端に掘進手段を装備した伸縮可能なシリンダと一体と
され、自走可能な走行体からなる掘削推進装置に対して
新設対象の供給管の一端を一体化し、 上記シリンダの伸長時に上記掘進手段による掘進を行
い、上記シリンダの収縮時、上記走行体を上記掘進手段
側に走行させることによりこれと一体化されている上記
供給管を牽引して引き込むことを特徴とする配管敷設工
法。
1. A pipe laying method in which a digging means is propelled from the ground surface to the ground, and a new supply pipe is inserted into a propulsion hole formed by the digging means. One end of the supply pipe to be newly installed is integrated with the excavation propulsion device that is a self-propelled traveling body that is integrated with a simple cylinder, and excavation is performed by the excavation means when the cylinder is extended, and when the cylinder is contracted. A pipe laying method, wherein the running body is moved toward the excavation means side to pull and pull in the supply pipe integrated therewith.
【請求項2】 請求項1記載の配管敷設工法において、 上記シリンダに内装されている伸縮ロッドのピストンを
油圧モータで構成し、該伸縮ロッドを伸長させながら回
転させて掘進することを特徴とする配管敷設工法。
2. The pipe laying method according to claim 1, wherein the piston of the telescopic rod provided in the cylinder is constituted by a hydraulic motor, and the telescopic rod is excavated by rotating while extending the telescopic rod. Piping laying method.
JP22199198A 1998-08-05 1998-08-05 Piping laying method Expired - Fee Related JP3819600B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22199198A JP3819600B2 (en) 1998-08-05 1998-08-05 Piping laying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22199198A JP3819600B2 (en) 1998-08-05 1998-08-05 Piping laying method

Publications (2)

Publication Number Publication Date
JP2000054789A true JP2000054789A (en) 2000-02-22
JP3819600B2 JP3819600B2 (en) 2006-09-13

Family

ID=16775380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22199198A Expired - Fee Related JP3819600B2 (en) 1998-08-05 1998-08-05 Piping laying method

Country Status (1)

Country Link
JP (1) JP3819600B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112227514A (en) * 2020-07-15 2021-01-15 杭州市市政工程集团有限公司 Construction method of sewage allocation main pipe network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112227514A (en) * 2020-07-15 2021-01-15 杭州市市政工程集团有限公司 Construction method of sewage allocation main pipe network

Also Published As

Publication number Publication date
JP3819600B2 (en) 2006-09-13

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