JP3093937B2 - Pipe laying method - Google Patents
Pipe laying methodInfo
- Publication number
- JP3093937B2 JP3093937B2 JP06264138A JP26413894A JP3093937B2 JP 3093937 B2 JP3093937 B2 JP 3093937B2 JP 06264138 A JP06264138 A JP 06264138A JP 26413894 A JP26413894 A JP 26413894A JP 3093937 B2 JP3093937 B2 JP 3093937B2
- Authority
- JP
- Japan
- Prior art keywords
- trench
- buried
- pipe
- laying
- shoring
- 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.)
- Expired - Fee Related
Links
Landscapes
- Sewage (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
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 underground.
【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 conduit for sending high-pressure gas in the ground, a trench (buried groove) is excavated along a laying route so that the ground on both sides of the trench is not collapsed. A method is adopted in which a pile is erected, a sheet pile, an upright, and a cutting beam are used in many cases, and the pipes are laid one after another in the trench, and the end faces of the pipes are welded to each other. After the pipes are laid in the trenches, the sheet piles, bulges, cut beams, etc. used for the mountain retaining are removed, and the trenches are 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 method, a so-called propulsion method is employed in which a predetermined shaft is excavated instead of excavating a torrent along a laying route, and a pipe is propelled from a lateral wall of the 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 a trench along a laying route, it takes time to take measures to prevent collapse of the ground, and even after the treatment, it is necessary to hang the pipe in the trench. There is a problem that the progress of the plumbing work is obstructed and a long construction period is required, for example, the cut beam becomes an obstacle and the cut beam needs to be once removed.
【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 underground from the side wall of a shaft, and has the advantage of laying a pipeline without obstructing the traffic on the ground and the flow of the river, but has the advantages of the construction period and cost. Therefore, compared with the method of excavating a trench, there is a problem that an extremely long construction period is required and a huge cost is required. In view of the above circumstances, an object of the present invention is to provide a pipe laying method capable of laying a pipe in a short period of time and at low cost.
【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。In order to achieve the above object, a pipe laying method according to the present invention comprises the steps of: excavating a buried trench, standing up at a distance corresponding to the width of the buried trench; A support consisting of a beam connecting two pillars at the top is inserted into the buried trench at predetermined intervals in the longitudinal direction of the buried trench, and a plurality of supports installed in the buried trench are inserted. Straddling, the traveling beam for the hoist crane is bridged over these multiple beams of the shoring,
The buried pipes are transported into the buried trenches using a hoist crane to connect the buried 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, the pipe laying method of the present invention preferably includes a step of bridging an earth retaining sheet pile between the support works inserted adjacent to the buried trench. As the shoring, an inverted U-shaped shoring in which the shoring beams are convexly curved upward may be used, or as the shoring, a portal type shoring in which the shoring beams are horizontal. May be used.
【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 preferable that the method further includes a step of laying a work floor plate 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 the trench is excavated, a retaining structure such as an inverted U-shape or a portal type for earth retaining is sequentially inserted at an appropriate pitch, so that it is easily broken such as sand. When excavating soil or excavating deep trenches of 2m or more, it is sufficient to bridge a sheet pile for retaining between adjacent supports as necessary, making construction for retaining the soil extremely simple. It can be carried out. In addition, when hanging down the pipe, the traveling beam for the hoist crane should be passed to the support beam for retaining the earth, and the pipe can be loaded into the trench from the end of the trench by the hoist claim, and the pipes should be centered. Can also be easily done. After the pipes are laid, the shoring is removed 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 plumbing is being performed by employing one embodiment of the pipeline laying method of the present invention, and FIG. 2 is a perspective view of a shoring. The trench 20 for burying pipes is excavated using the backhoe 10, and an inverted U-shaped support 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 support 30 has an H-shaped cross section, and has a size of 150 mm × 150 mm.
mm to 2000 mm. A horizontal sheet pile 34 for earth retaining is laid between the adjacent supports. In FIG. 2, the horizontal sheet pile 34 is stretched only on one side, but this horizontal sheet pile 34 is
Is generally stretched along both side walls of the trench 20. Conditions for bridging the horizontal sheet pile 34 are, for example, in the case of soil having a large collapsibility such as sand, or in the case where the excavation depth is as deep as 2 m or more. When it is necessary to hang the horizontal sheet pile 34 around the support 30, it is natural to use the support 30 having an insertion hole 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 in which the burial pipe is hung by a hoist crane. After the shoring 30 is inserted into the trench 20 at a predetermined pitch, a traveling beam 42 for a hoist crane is stretched over the beam 32 of the shoring 30 along the longitudinal direction of the trench 20, and the buried pipe 50 is inserted into the hoist crane 40. Is suspended and transported in the trench 20 to a position where the tip of the burying pipe 50 abuts on the rear end of the pipe 50A (see FIG. 1) connected to the rearmost of the pipes already connected. Then, these pipe ends are aligned with each other. Since the tube 50 is hung by the hoist crane, the position thereof can be easily adjusted. After that, welding of those pipe ends, welding inspection,
Perform coating of the weld. By repeating this, the trench 20
We install pipe connected inside.
【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 plate is laid on the trench and work is being performed thereon.
As shown in FIG. 4, the work floor plate 70
Is laid, and the buried pipes 50 are welded to each other on the work floor plate 70, welding inspection is performed, and further, coating and coating of the welded portions are performed, and these operations are performed with a pipe of a predetermined length (for example, 50 m).
After the completion, the work floor plate 70 on the trench 20 is removed, and a pipe of a predetermined length (for example, 50 m) is suspended in the excavation trench 20 at once.
【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 diagram showing a state in which the pipe 50 is installed in the trench 20. Floor sand 60 is spread on the bottom of the trench 20, and the pipe 50 is arranged thereon.
Thereafter, the shoring 50 is removed, and the trench 20 is backfilled. The removed shoring 50 is diverted to the next section.
【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. Here, a gate-type shoring 30A is used, but the shoring according to the present invention may be any shoring comprising two pillars and a beam connecting the two pillars at the top. , May be inverted U-shaped or gate-shaped. In FIG. 6, the support 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 shoring 30A is installed in this manner and a traveling beam (not shown in FIG. 6) for the hoist crane is bridged over the beam 32A of the shoring 30A, the pipe buried in the trench 20 is connected to the hoist crane. The hanging work can be performed on the ground, and the work efficiency can be improved.
【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, according to the present invention, the inverse U
Since the sill-shaped or gate-shaped shoring is inserted into the trench for earth retaining, workability of the earth retaining is improved. Moreover, since the traveling beam for the hoist crane is bridged using the beam of the support, the installation of the hoist crane is easy, and the hoist crane is used to easily transport, position, and weld the buried pipe. Can be.
【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 diagram showing a state in which piping work is performed by employing 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 shoring.
【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 view showing a state in which a burial pipe is hung 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 diagram showing a state in which a work floor plate is laid on a trench and work is being performed thereon.
【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 where a pipe 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 the 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 DESCRIPTION OF SYMBOLS 10 Backhoe 20 Trench 30, 30A Shoring 32, 32A Shoring beam 34 Horizontal sheet pile 40 Hoist crane 42 Hoist crane beam 50 Buried pipe 70 Working floor board
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−83883(JP,A) 特開 平2−24483(JP,A) 特開 昭55−14319(JP,A) (58)調査した分野(Int.Cl.7,DB名) F16L 1/024 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-83883 (JP, A) JP-A-2-24483 (JP, A) JP-A-55-14319 (JP, A) (58) Investigation Field (Int.Cl. 7 , DB name) F16L 1/024
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。An excavating trench for burying, a support comprising two pillars rising up at an interval corresponding to the width of the trench for burying and a beam connecting the two pillars at the top, The hoist crane is inserted into the buried trench at predetermined intervals in the longitudinal direction of the buried trench, and straddles a plurality of the supports installed in the buried trench. A method of laying a pipeline, comprising: bridging a running beam for transportation, transporting the buried pipe into the buried trench by using a hoist crane, and connecting the buried pipes.
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 method of laying a pipeline according to claim 1, further comprising a step of bridging an earth retaining sheet pile between the supports inserted adjacent to the buried 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 pipe laying method according to claim 1 or 2, wherein an inverted U-shaped support in which a beam of the support is curved upward and convex is used as the support.
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 shoring structure according to claim 1 or 2, wherein the shoring structure uses a horizontal gate-type shoring structure.
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 method according to claim 1, further comprising a step of laying a work floor plate 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 JPH08121650A (en) | 1996-05-17 |
JP3093937B2 true 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) |
Families Citing this family (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 |
CA2790828C (en) * | 2010-02-25 | 2018-06-26 | Terra Technologies, LLC | Apparatus, systems and methods for the relocation of subsurface conduit |
JP7160239B2 (en) * | 2018-10-19 | 2022-10-25 | 株式会社奥村組 | Propulsion method of box structure |
-
1994
- 1994-10-27 JP JP06264138A patent/JP3093937B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH08121650A (en) | 1996-05-17 |
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