JPH08121650A - Pipeline laying construction method - Google Patents
Pipeline laying construction methodInfo
- Publication number
- JPH08121650A JPH08121650A JP6264138A JP26413894A JPH08121650A JP H08121650 A JPH08121650 A JP H08121650A JP 6264138 A JP6264138 A JP 6264138A JP 26413894 A JP26413894 A JP 26413894A JP H08121650 A JPH08121650 A JP H08121650A
- Authority
- JP
- Japan
- Prior art keywords
- trench
- pipe
- burying
- hoist crane
- work
- 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
Links
Landscapes
- Sewage (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、地中に管路を布設する
管路布設工法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipeline laying method for laying a pipeline in the ground.
【0002】[0002]
【従来の技術】例えば高圧ガスを送るために密閉した管
路を地中に布設するにあたっては、布設経路に沿ってト
レンチ(埋設用溝)を掘削し、そのトレンチ両側の地山
が崩れないよう、矢板、腹起し、切梁を多用して山留め
を施し、その後そのトレンチ内に布設用管を順次配置し
ては管の端面どうしを溶接するという工法が採用されて
いる。トレンチ内に管を布設した後は、山留めに用いた
矢板、腹起し、切梁等が取り外され、そのトレンチが埋
め戻される。2. Description of the Related Art For example, when laying a closed pipeline for sending high-pressure gas in the ground, a trench (buried groove) is excavated along the laying route so that the ground on both sides of the trench is not collapsed. In this method, piles are piled up by using piles, sheet piles, upsets, and beams, and then pipes for installation are sequentially arranged in the trenches, and end faces of the pipes are welded to each other. After the pipe is laid in the trench, the sheet pile used for the mountain retaining, the uprising, the cutting beam, etc. are removed, and the trench is backfilled.
【0003】また他の工法として、布設経路に沿ってト
レンスを掘削するのではなく、所定の立坑を掘っておい
て、この立坑の横壁から管をその長手方向に推進するい
わゆる推進工法が採用されることがある。As another construction method, a so-called propulsion construction method is adopted in which, instead of excavating the Torens along the laying route, a predetermined vertical shaft is excavated and the pipe is propelled from the lateral wall of the vertical shaft in the longitudinal direction thereof. Sometimes.
【0004】[0004]
【発明が解決しようとする課題】ところが布設経路に沿
ってトレンチを掘削する工法は、地山が崩れないよう処
置するのに手間がかかり、処置後も、管をそのトレンチ
内に吊り下ろすのに切梁りが邪魔になり、その切梁りを
一旦取り外す必要を生じる等、配管工事の円滑な進捗を
阻外し、長い工期を要するという問題がある。However, in the method of excavating the trench along the laying route, it takes time and effort to prevent the ground from collapsing, and even after the procedure, the pipe is suspended in the trench. There is a problem that the cutting beam is an obstacle, and it is necessary to remove the cutting beam once, which hinders the smooth progress of the piping work and requires a long construction period.
【0005】また推進工法は、立坑の横壁から地中を掘
り進む工法であり、地上の交通や川の流れを妨げること
なく管路を布設することができるという長所はあるもの
の、工期や費用の点からは、トレンチを掘削する工法と
比べ、極めて長い工期がかかり膨大な費用がかかるとい
う問題がある。本発明は、上記事情に鑑み、短い工期で
安価に管路を布設することのできる管路布設工法を提供
することを目的とする。The propulsion method is a method of digging into the ground from the side wall of a vertical shaft, and although it has the advantage of being able to lay a pipeline without hindering traffic on the ground or the flow of a river, the construction period and cost are low. Therefore, compared with the method of excavating the trench, there is a problem that the construction period is extremely long and the cost is huge. In view of the above circumstances, an object of the present invention is to provide a pipeline laying method capable of laying a pipeline at a low cost in a short construction period.
【0006】[0006]
【課題を解決するための手段】上記目的を達成する本発
明の管路布設工法は、埋設用トレンチを掘削し、埋設用
トレンチの横幅に対応した間隔を隔てて立ち上がる2本
の柱と、これら2本の柱どうしを上部でつなぐ梁とから
なる支保工を、埋設用トレンチ内に、埋設用トレンチの
長手方向に所定間隔ずつ隔てて差し込み、埋設用トレン
チ内に設置された複数の支保工に跨って、これら複数の
支保工の梁にホイストクレーン用の走行梁を掛け渡し、
埋設用管をホイストクレーンを用いて埋設用トレンチ内
に運搬して埋設用管どうしを連結することを特徴とす
る。The pipe laying method of the present invention which achieves the above object is to excavate a burying trench and to raise two pillars which rise at intervals corresponding to the lateral width of the burying trench. Supports consisting of beams connecting two pillars at the top are inserted into the trench for burying at predetermined intervals in the longitudinal direction of the trench for burying, and a plurality of supports installed in the trench for burying Across the beams of the multiple support works, cross the traveling beams for the hoist crane,
It is characterized in that the burying pipe is transported to the burying trench by using a hoist crane to connect the burying pipes.
【0007】ここで、上記本発明の管路布設工法におい
て、上記埋設用トレンチ内に隣接して差し込まれた前記
支保工間に土留め用矢板を架け渡す工程を有することが
好ましい。上記支保工としては、その支保工の梁が上方
に凸に湾曲した逆U字型支保工を用いてもよく、あるい
は、上記支保工として、その支保工の梁が水平な門型支
保工を用いてもよい。Here, it is preferable that the pipeline laying method of the present invention has a step of bridging the earth retaining sheet pile between the support works inserted adjacently in the burying trench. As the above-mentioned support work, an inverted U-shaped support work in which the beam of the support work is convexly curved upward may be used, or as the above-mentioned support work, a gate-type support work in which the beam of the support work is horizontal is used. You may use.
【0008】さらに、本発明の管路布設工法において、
上記トレンチ上に作業床板を敷く工程を有することも好
ましい。Further, in the pipe laying method of the present invention,
It is also preferable to have a step of laying a work floor board on the trench.
【0009】[0009]
【作用】本発明の管路布設工法によれば、トレンチ掘削
後、土留め用の、例えば逆U字型、門型等の支保工を適
当なピッチで順次差し込み、例えば砂地のような崩れ易
い土質の土盤を掘削したり2m以上の深いトレンチを掘
削する場合等、必要に応じて隣接する支保工間に土留め
用の矢板を架け渡すだけで事足り、土留め用の工事を極
めて簡便に行うことができる。また、管吊り降ろし時に
は、土留め用の支保工の梁にホイストクレーン用の走行
梁を渡して、ホイストクレームにてトレンチ端部よりト
レンチ内に管体を搬入すればよく、管どうしの芯出しも
容易にできる。管布設後は、支保工は抜き取られて回収
され、次の現場に転用される。According to the pipe laying method of the present invention, after excavating a trench, shovels for retaining soil, for example, inverted U-shape, gate-type, etc., are sequentially inserted at an appropriate pitch, so that it is easy to collapse like sand. When excavating earthy soil or excavating deep trenches of 2 m or more, it is sufficient to bridge the sheet piles for earth retaining between adjacent support works as necessary, and the work for retaining earth is extremely simple. It can be carried out. In addition, when hoisting down the pipe, the traveling beam for the hoist crane may be passed over the beam for supporting the earth and the pipe body may be brought into the trench from the trench end using the hoist claim. Can be done easily. After laying the pipe, the supporting work is extracted and collected, and is diverted to the next site.
【0010】[0010]
【実施例】以下、本発明の実施例について説明する。図
1は、本発明の管路布設工法の一実施例を採用して配管
工事を行っている様子を示す模式図、図2は支保工の斜
視図である。バックホウ10を用いて管埋設用トレンチ
20を掘削し、そのトレンチ20内の土中に、所定ピッ
チ(この実施例では50cmピッチ)で逆U字型の支保
工30を差し込む。Embodiments of the present invention will be described below. FIG. 1 is a schematic view showing a state in which piping work is carried out by adopting an embodiment of the pipeline laying method according to the present invention, and FIG. 2 is a perspective view of the support work. The pipe burying trench 20 is excavated using the backhoe 10, and the inverted U-shaped support structure 30 is inserted into the soil in the trench 20 at a predetermined pitch (50 cm pitch in this embodiment).
【0011】この支保工30は、図2に示すように、断
面がH型のものであり、150mm×150mmのもの
を使用し、根入れ長は、土質の支持力にもよるが500
mm〜2000mmとする。隣接する支保工間には土留
め用の横矢板34が掛け渡される。図2では、片側にの
み横矢板34が掛け渡されているが、この横矢板34
は、一般には、トレンチ20の両側壁に沿って掛け渡さ
れる。横矢板34を掛け渡す条件は、砂地のような崩壊
性の大きい土質の場合や掘削深さが2m以上と深い場合
等である。尚、支保工30に横矢板34を掛け渡す必要
のある場合は、横矢板34を挿入する挿入口のある支保
工30を用いるのは当然である。As shown in FIG. 2, the supporting structure 30 has an H-shaped cross section and has a size of 150 mm × 150 mm. The rooting length is 500 depending on the bearing capacity of the soil.
mm to 2000 mm. A horizontal sheet pile 34 for earth retaining is hung between adjacent support works. In FIG. 2, the horizontal sheet pile 34 is laid on only one side, but the horizontal sheet pile 34 is
Are generally spanned along both side walls of the trench 20. The conditions for crossing the horizontal sheet pile 34 are, for example, the case of a highly collapsible soil such as sandy ground, and the case of a deep excavation depth of 2 m or more. In addition, when it is necessary to bridge the horizontal sheet pile 34 on the supporting bar 30, it is natural to use the supporting bar 30 having an insertion port for inserting the horizontal sheet pile 34.
【0012】図3は、埋設用管がホイストクレーンに吊
り下げられた状態を示す模式図である。トレンチ20に
所定ピッチで支保工30を差し込んだ後、支保工30の
梁32に、トレンチ20の長手方向に沿ってホイストク
レーン用の走行梁42が掛け渡され、ホイストクレーン
40に埋設用管50が吊り下げられて、トレンチ20内
を、その埋設用管50の先端が既に連結された管の中の
一番後ろに連結された管50A(図1参照)の後端に当
接する位置まで運搬され、それらの管端どうしの位置合
わせが行われる。管50はホイストクレーンに吊り下げ
られているため、容易にその位置合わせを行うことがで
きる。その後、それらの管端どうしの溶接、溶接検査、
溶接部の塗覆装を行う。これを繰り返し、トレンチ20
内に連結された管を設置していく。FIG. 3 is a schematic view showing a state where the burying pipe is suspended by a hoist crane. After inserting the supporting works 30 into the trench 20 at a predetermined pitch, a traveling beam 42 for a hoist crane is stretched over the beam 32 of the supporting work 30 along the longitudinal direction of the trench 20, and the hoist crane 40 is buried with a pipe 50 for embedding. Is suspended, and the inside of the trench 20 is transported to a position where the tip of the embedding pipe 50 comes into contact with the rear end of the pipe 50A (see FIG. 1) connected to the rearmost of the already connected pipes. Then, the tube ends are aligned with each other. Since the pipe 50 is suspended by the hoist crane, the alignment can be easily performed. After that, welding of those pipe ends, welding inspection,
Cover the weld. Repeat this for the trench 20
The pipes connected inside will be installed.
【0013】図4は、トレンチ上に作業床板を敷き、そ
の上で作業を行っている様子を表わした模式図である。
この図4に示すように、トレンチ20上に作業床板70
を敷き、その作業床板70の上で、埋設用管50どうし
を溶接し、溶接検査を行い、さらに溶接部の塗覆装を施
工し、これらの作業が所定長さの管路(例えば50m)
に渡って完了した後、トレンチ20上の作業床板70を
撤去し、所定長(例えば50m)の管路を一挙に掘削ト
レンチ20内に吊り降ろす布設法も可能である。FIG. 4 is a schematic view showing a state in which a work floor board is laid on a trench and work is performed on it.
As shown in FIG. 4, a work floor board 70 is formed on the trench 20.
On the working floor plate 70, the buried pipes 50 are welded to each other, a welding inspection is performed, and coating of the welded portion is further applied, and these works are pipe lines of a predetermined length (for example, 50 m).
It is also possible to dispose the work floor plate 70 on the trench 20 after the completion of the work and to suspend the pipelines of a predetermined length (for example, 50 m) all at once inside the excavation trench 20.
【0014】図5は、トレンチ20内に管50が設置さ
れた状態を示す模式図である。トレンチ20の底には床
砂60が敷き詰められ、その上に管50が配置される。
その後支保工50が撤去され、トレンチ20が埋め戻さ
れる。撤去された支保工50は次の工区に転用される。FIG. 5 is a schematic view showing a state where the tube 50 is installed in the trench 20. Floor sand 60 is spread over the bottom of the trench 20, and the pipe 50 is placed thereon.
After that, the support work 50 is removed, and the trench 20 is backfilled. The removed support work 50 will be diverted to the next work area.
【0015】図6は、トレンチ20の一端部を示す模式
的斜視図である。ここには門型の支保工30Aが用いら
れているが、本発明にいう支保工は、2本の柱と、それ
ら2本の柱どうしを上部でつなぐ梁とからなる支保工で
あればよく、逆U字型であってもよく門型であってもよ
い。この図6では、トレンチ20の後端部の、地上から
トレンチ20内へと徐々に傾斜した場所にも支保工30
Aが設置されている。支保工30Aをこのように設置
し、それらの支保工30Aの梁32Aにホイストクレー
ン用の走行梁(図6には図示せず)を架け渡すと、トレ
ンチ20内に埋設する管をホイストクレーンに吊り下げ
る作業は地上で行うことができ、作業の効率化が図られ
る。FIG. 6 is a schematic perspective view showing one end of the trench 20. Although a gate-shaped support structure 30A is used here, the support structure referred to in the present invention may be any support structure that is composed of two columns and a beam connecting the two columns at the top. The shape may be an inverted U shape or a gate shape. In FIG. 6, the support work 30 is also provided at the rear end of the trench 20 at a position gradually inclined from the ground into the trench 20.
A is installed. When the support beams 30A are installed in this way and the traveling beams (not shown in FIG. 6) for the hoist crane are bridged over the beams 32A of the support beams 30A, the pipes buried in the trench 20 are transferred to the hoist crane. The hanging work can be done on the ground, which improves the efficiency of the work.
【0016】[0016]
【発明の効果】以上説明したように、本発明では、逆U
字型ないし門型の支保工をトレンチに差し込んで土留め
を行うようにしたため、土留めの作業性が向上する。し
かもその支保工の梁を利用してホイストクレーン用の走
行梁を掛け渡すため、ホイストクレーンの設置が容易で
あり、ホイストクレーンを用いて埋設用管を容易に運
搬、位置合わせ、溶接接合することができる。As described above, in the present invention, the inverse U
The work of earth retaining is improved because the earth retaining work is done by inserting the letter-shaped or gate-shaped support work into the trench. Moreover, since the traveling beams for the hoist crane are laid over using the beams of the support work, it is easy to install the hoist crane, and the hoist crane can be used to easily transport, align, and weld the buried pipe. You can
【図1】本発明の管路布設工法の一実施例を採用して配
管工事を行っている様子を示す模式図である。FIG. 1 is a schematic view showing a state in which piping work is carried out by adopting an embodiment of a pipeline laying method of the present invention.
【図2】支保工の斜視図である。FIG. 2 is a perspective view of a support work.
【図3】埋設用管がホイストクレーンに吊り下げられた
状態を示す模式図である。FIG. 3 is a schematic diagram showing a state in which the burying pipe is suspended by a hoist crane.
【図4】トレンチ上に作業床板を敷き、その上で作業を
行っている様子を表わした模式図である。FIG. 4 is a schematic view showing a state in which a work floorboard is laid on a trench and work is performed on it.
【図5】トレンチ内に管が設置された状態を示す模式図
である。FIG. 5 is a schematic view showing a state in which a tube is installed in a trench.
【図6】トレンチの後端部を示す模式的斜視図である。FIG. 6 is a schematic perspective view showing a rear end portion of a trench.
10 バックホウ 20 トレンチ 30,30A 支保工 32,32A 支保工の梁 34 横矢板 40 ホイストクレーン 42 ホイストクレーン用梁 50 埋設用管 70 作業床板 10 Backhoe 20 Trench 30,30A Support work 32,32A Beam for support 34 Horizontal sheet pile 40 Hoist crane 42 Beam for hoist crane 50 Buried pipe 70 Working floor board
Claims (5)
がる2本の柱と、これら2本の柱どうしを上部でつなぐ
梁とからなる支保工を、該埋設用トレンチ内に、該埋設
用トレンチの長手方向に所定間隔ずつ隔てて差し込み、 前記埋設用トレンチ内に設置された複数の前記支保工に
跨って、これら複数の支保工の梁にホイストクレーン用
の走行梁を掛け渡し、 埋設用管をホイストクレーンを用いて前記埋設用トレン
チ内に運搬して埋設用管どうしを連結することを特徴と
する管路布設工法。1. A support structure comprising two pillars which are excavated from a burial trench and stand up at intervals corresponding to the lateral width of the burial trench, and a beam which connects these two pillars at the top. The hoist crane is inserted into the burying trench at predetermined intervals in the longitudinal direction of the burying trench, straddles the plurality of shorelines installed in the burying trench, and supports the beams of the plurality of shorelines. A pipeline laying method, characterized in that a traveling beam is bridged over, the burying pipe is carried into the burying trench by using a hoist crane, and the burying pipes are connected to each other.
まれた前記支保工間に土留め用矢板を架け渡す工程を有
することを特徴とする請求項1記載の管路布設工法。2. The pipeline laying method according to claim 1, further comprising a step of bridging an earth retaining sheet pile between the support works inserted adjacently into the burying trench.
に凸に湾曲した逆U字型支保工を用いることを特徴とす
る請求項1又は2記載の管路布設工法。3. The pipeline laying method according to claim 1, wherein an inverted U-shaped support structure in which a beam of the support structure is convexly curved upward is used as the support structure.
な門型支保工を用いることを特徴とする請求項1又は2
記載の管路布設工法。4. The gate-type support work in which a beam of the support work is horizontal is used as the support work.
The pipe laying method described.
有することを特徴とする請求項1から4のうちいずれか
1項記載の管路布設工法。5. The pipeline laying method according to claim 1, further comprising the step of laying a work floor board on the trench.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06264138A JP3093937B2 (en) | 1994-10-27 | 1994-10-27 | Pipe laying method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06264138A JP3093937B2 (en) | 1994-10-27 | 1994-10-27 | Pipe laying method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08121650A true JPH08121650A (en) | 1996-05-17 |
JP3093937B2 JP3093937B2 (en) | 2000-10-03 |
Family
ID=17398992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP06264138A Expired - Fee Related JP3093937B2 (en) | 1994-10-27 | 1994-10-27 | Pipe laying method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3093937B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100840223B1 (en) * | 2007-07-05 | 2008-06-23 | 한국가스공사 | Utility pipe lifting apparatus and pipe painting method using thereof |
WO2011106740A3 (en) * | 2010-02-25 | 2011-12-08 | Terra Technologies, LLC | Apparatus, systems and methods for the relocation of subsurface conduit |
JP2020063640A (en) * | 2018-10-19 | 2020-04-23 | 株式会社奥村組 | Spacer and propulsion method for box structure |
-
1994
- 1994-10-27 JP JP06264138A patent/JP3093937B2/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100840223B1 (en) * | 2007-07-05 | 2008-06-23 | 한국가스공사 | Utility pipe lifting apparatus and pipe painting method using thereof |
WO2011106740A3 (en) * | 2010-02-25 | 2011-12-08 | Terra Technologies, LLC | Apparatus, systems and methods for the relocation of subsurface conduit |
US8622656B2 (en) | 2010-02-25 | 2014-01-07 | Terra Technologies, LLC | Apparatus, systems and methods for the relocation of subsurface conduit |
JP2020063640A (en) * | 2018-10-19 | 2020-04-23 | 株式会社奥村組 | Spacer and propulsion method for box structure |
Also Published As
Publication number | Publication date |
---|---|
JP3093937B2 (en) | 2000-10-03 |
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