JPS61192983A - Method of removing existing piping - Google Patents

Method of removing existing piping

Info

Publication number
JPS61192983A
JPS61192983A JP60031573A JP3157385A JPS61192983A JP S61192983 A JPS61192983 A JP S61192983A JP 60031573 A JP60031573 A JP 60031573A JP 3157385 A JP3157385 A JP 3157385A JP S61192983 A JPS61192983 A JP S61192983A
Authority
JP
Japan
Prior art keywords
upper half
pipe
block
blocks
piping
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.)
Pending
Application number
JP60031573A
Other languages
Japanese (ja)
Inventor
重人 渡辺
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP60031573A priority Critical patent/JPS61192983A/en
Publication of JPS61192983A publication Critical patent/JPS61192983A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、水力発電所において傾斜面に配設されている
水圧鉄管等の傾斜配置の既設配管を撤去する方法に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for removing existing piping arranged at an angle, such as a penstock, installed on an inclined surface in a hydroelectric power plant.

(従来の技術) 水力発電所における水圧鉄管について従来例を説明する
と、第2図に示すように落差を利用して発電するために
傾斜面上に長尺の水圧配管(α)が配設されているが、
該水圧配管(α)は老朽化に伴って撤去され、新たな配
管を配設することが必要となシ、前記水圧配管(α)の
撤去に際しては、第2図に示すように水圧配管(α)が
配設されている傾斜地の上部側と下部側に鉄塔(A)(
C)を設け、鉄塔(A)(C)間に張設されているケー
ブル(d)にクレーン(g) ヲ配置シて、地上の巻取
機(イ)でクレーン(−)を操作し分断された水圧鉄管
(αつを吊持して運搬、撤去する揚重設備が設けられて
いる。
(Prior Art) To explain a conventional example of a penstock in a hydroelectric power plant, as shown in Figure 2, a long hydraulic pipe (α) is arranged on a slope to generate electricity using the head. Although,
The hydraulic piping (α) has been removed due to aging, and it is necessary to install a new piping. When the hydraulic piping (α) is removed, the hydraulic piping ( The steel tower (A) (
C), place a crane (g) on the cable (d) stretched between the steel towers (A) and (C), and operate the crane (-) with a winder (a) on the ground to separate it. Lifting equipment is installed to lift, transport, and remove penstocks.

(従来技術の問題点) 従来の前記水圧鉄管(即ち傾斜配置の既設配管)の撤去
に際しては、第2図に示すように大規模な揚重設備を設
けることが必要となり、該揚重設備の設置、撤去に多く
の日数を要し費用が著しく増大するとともK、水圧配管
(1)をクレーン(りで吊持し空中運搬するため危険な
撤去作業になるなどの問題点がある。
(Problems with the prior art) When removing the conventional penstock (i.e., the existing piping arranged at an angle), it is necessary to install large-scale lifting equipment as shown in Fig. There are other problems, such as the installation and removal taking many days and significantly increasing costs, and the removal work being dangerous as the hydraulic piping (1) is lifted by a crane and transported in the air.

(発明の目的、問題点の解決手段) 本発明は、前記のような問題点に対処するために開発さ
れたものであって、傾斜配置の既設配管における上半部
分を、下部側から上部に向って順次に分断して上半ブロ
ックにするとともに、前記各上半ブロックを索条で支持
し既設配管の内面利用により運搬を繰り返して撤去した
のち、上半部分切除配管を、その上部側から下部に向っ
て順次に分断して下半ブロックにするとともに、前記各
下半ブロックを索条で支持し上半部分切除配管の内面利
用により運搬を繰り返して撤去する構成に特徴を有し、
傾斜配置の既設配管の上半部分を、下部側から上部に向
って順次に分断して上半ブロックにするとともに、各上
半ブロックを索条支持と既設配管の内面利用により運搬
、撤去したのち、上半部分切除配管を、上部側から下部
に向って順次に分断して下半ブロックにするとともに、
各下半ブロックを前記上半ブロックと同様な手段によっ
て運搬、撤去することKよ)、格別の揚重設備を要せず
に極めて効率よく安全に撤去でき、撤去能率を著しく向
上させて前記のような問題点を解消した既設配管の撤去
方法を提供するにある。
(Objective of the Invention, Means for Solving the Problems) The present invention was developed to solve the above-mentioned problems. The upper half blocks are sequentially divided into upper half blocks, each of the upper half blocks is supported with cables, and the existing piping is used inside the existing pipes for repeated transportation and removal. It is characterized by a structure in which the lower half blocks are sequentially divided toward the bottom, each of the lower half blocks is supported by cables, and the inner half of the upper half block is repeatedly transported and removed by utilizing the inner surface of the pipe,
The upper half of the existing piping, which is arranged at an angle, will be divided into upper half blocks from the bottom to the top, and each upper half block will be transported and removed using cable support and the inner surface of the existing piping. , the upper half of the pipe is sequentially divided from the upper side to the lower side to form a lower half block,
Each lower half block can be transported and removed by the same means as the upper half block (K), and can be removed extremely efficiently and safely without the need for special lifting equipment. The object of the present invention is to provide a method for removing existing piping that eliminates such problems.

(発明の実施例) 第1図に本発明方法の一実施例を示しておシ、図中(1
)は傾斜地面上等に傾斜配置されている水圧鉄管、即ち
傾斜配置の既設配管であって、実際は図示以上に多数の
水圧鉄管を連結して長尺に配管されている。
(Embodiment of the invention) Fig. 1 shows an embodiment of the method of the invention.
) is a penstock pipe installed on a sloping ground or the like, that is, an existing piping arrangement arranged at a slope.Actually, a larger number of penstock pipes than shown are connected to form a long pipe.

本発明における前記既設配管(1)の撤去方法について
詳述すると、先ず、第1図(A)にノ・ツチで示す既設
配管(1)の下部側の上半174内部分を連結部分の分
離、溶断等の手段により適宜の長さに分断して上半1/
4円ブロック(1つにするととも(、該上半1/4円ブ
ロック(1α)は、第1図(E)K示すようにワイヤロ
ープ等の索条(2)の先端部に連結、支持され、既設配
管(1)の内面上に配置されたのち、図示省略した巻取
機によって索条(2)を繰り出し既設配管(1)をシュ
ータ−として下方へ自走、運搬されて撤去される。
To explain in detail the method for removing the existing pipe (1) according to the present invention, first, the inner part of the upper half 174 on the lower side of the existing pipe (1) shown by the notch in FIG. 1(A) is separated from the connecting part. , cut the upper half into appropriate lengths by cutting or other means.
4 circular blocks (when combined into one), the upper 1/4 circular block (1α) is connected and supported to the tip of a cable (2) such as a wire rope, as shown in Fig. 1 (E) K. After being placed on the inner surface of the existing pipe (1), the cable (2) is let out by a winder (not shown), and the cable (2) is self-propelled downward using the existing pipe (1) as a shooter, and is transported and removed. .

次に、第1図(qに・・ソチで示す上半1/4内部分を
前記と同様な手段によって適宜の長さに分断して上半1
/4円ブロック(1h)にするとともに、該上半1/4
円ブロック(1b)は、第1図(至)に示すように索条
(2)に連結、支持され既設配管(1)の内面上に配置
されたのち、既設配管(1)をシュータ−として前記同
様に下方へ自走、運搬されて撤去される。
Next, in Fig. 1 (q), the inner quarter of the upper half shown by Sochi is divided into appropriate lengths by the same means as described above.
/ 4 circle block (1h) and the upper 1/4
The circular block (1b) is connected to and supported by the cable (2) and placed on the inner surface of the existing pipe (1) as shown in Fig. 1 (to), and then the existing pipe (1) is used as a shooter. As above, it is self-propelled downward, transported, and removed.

さらK、第1図(至)にハツチで示す上半1/4内部分
を前記と同様な手段によって分断し上半/4円ブロック
(IC)Kするとともに、前記と同様な手段により運搬
、撤去し、前記既設配管(1)は、その上半部分を下部
側から上部に向って順次に分断して上半1/4円ブロッ
ク(1す、(IA)、(IC)、・・・にするとともに
、各上半1/4円ブロック(1α)、(Ib)、(IC
)、・・・を索条(2)で支持し既設配管(1)の内面
利用により運搬を繰り返して撤去され、第1図■に示す
ように既設配管の上半部分の撤去が終了する。
Furthermore, the inner quarter of the upper half shown by the hatch in FIG. The existing piping (1) was removed, and the upper half of the pipe (1) was sequentially divided from the bottom to the top to form upper quarter circular blocks (1, (IA), (IC),... and each upper quarter circle block (1α), (Ib), (IC
), . . . are supported by cables (2) and transported repeatedly by using the inner surface of the existing piping (1), and removed, and the removal of the upper half of the existing piping is completed as shown in Figure 1 (■).

また、上半部分が撤去された上半部分切除配管(1つの
撤去について詳述すると、先ず、第1図(ト)にハツチ
で示すように上半部分切除配管(1りの上部側の下半1
/4内部分を前記と同様な手段により適宜の長さに分断
して下半1/4円ブロック(1′α)Kするとともに、
該下半1/4円ブロック(1t)は、第1図(ト)に示
すようにワイヤロープ等の索条(2)の先端部に連結、
支持され、上半部分切除配管(1りの内面上に配置され
たのち、索条(2)を繰り出し上半部分切除配管(lり
をシュータ−として下方へ自走、運搬して撤去される。
In addition, the upper half of the upper half of the pipe (1) whose upper half was removed (to explain the removal in detail, first, the lower half of the upper half of the upper half of the pipe (1) is Half 1
/4 inner part is divided into appropriate lengths by the same means as described above to form a lower half 1/4 circle block (1'α),
The lower half quarter circle block (1t) is connected to the tip of a cable (2) such as a wire rope, as shown in FIG.
After being supported and placed on the inner surface of the upper half of the pipe (1), the cable (2) is let out and the upper half of the pipe (1) is used as a shooter to self-propel downward and be transported and removed. .

次に、第1図0にハツチで示す下半1/4内部分を前記
と同様な手段により適宜の長さに分断して下半1/4円
ブロック(1′b)にするとともに、該下半1/4円ブ
ロック(1’A)11、第1図(ト)に示した場合と同
様に索条(2)で支持され上半部分切除配管(1りをシ
ュータ−として下方へ自走、運搬して撤去される。
Next, the inner quarter of the lower half indicated by the hatch in FIG. The lower half quarter circle block (1'A) 11 is supported by cables (2) as in the case shown in Fig. 1 (G), and the upper half of the cut pipe (1 is used as a shooter to automatically move downward). It is run, transported, and removed.

さらに、第1図(G)Kハツチで示す下半1/4内部分
を適宜の長さに分断し、その下半1/4円ブロック(1
′C)についても前記と同様な手段によ)運搬して撤去
され、上半部分切除配管(1りをその上部側から下部に
向って順次に分断して下半174円ブロック(1’a)
、(1’16)、 (1′C)・・・ にするとともに
、前記各下半1/4円ブロック(1’(Z)、 (1’
/))、 (1′C) 、・・・を索条(2)で支持し
上半部分切除配管(1つの内面利用により運搬を繰り返
して撤去を完了する。
Furthermore, the lower 1/4 inner part shown by the K hatch in Figure 1 (G) is divided into appropriate lengths, and the lower 1/4 circular block (1
'C) was also transported and removed by the same means as above), and the upper half of the pipe (1) was cut sequentially from the upper side to the lower part to create a lower half 174-yen block (1'a). )
, (1'16), (1'C)..., and each of the lower quarter circle blocks (1'(Z), (1'
/)), (1'C), ... are supported by cables (2), and the upper half of the pipe is removed (using one inner surface, the pipe is repeatedly transported and the removal is completed.

前記撤去の実施例においては、既設配管(1)の上半部
分を適宜長さの上半174円ブロック(1α)、(1b
)。
In the above removal example, the upper half of the existing piping (1) was removed from the upper half of the 174-circle block (1α), (1b
).

(IC)、・・・に分断し、上半部分切除配管(1つを
適宜長さの下半1/4円ブロック(1’lり、 (1’
A)、 (1′C)、・・・に分断しているが、前記各
ブロックは、上半部分が切除されている配管内面で支持
・運搬されるため、上半1/2円ブロック(1α、1り
とし、下半1/2円ブロック(1’4.1’A)K し
て分断して運搬、撤去することもできる。また、傾斜配
置の既設配管(1)が平面視において曲折した配置に逢
っていても、前記各ブロックは上側の索条で支持されて
いるため、配管内面利用による下方への運搬、撤去が可
能であシ、既設配管(1)の傾斜不足による下方への自
走力が不足し、あるいは配管途中に一部の水平配置部分
や逆傾斜部分が存在している場合には、各ブロックの下
側にも索条を連結して牽引するなどの手段によって容易
に運搬、撤去される。さらに、大径配管においては、周
方向の連結部がある場合がちシ、この分断は、連結部の
ボルト等により分離によることができ、短管の場合は継
目ごとの分離によることができる。
(IC), ..., cut the upper half of the piping (one part is cut into the lower half of the quarter circle block of appropriate length (1'l), (1'
It is divided into A), (1'C), etc., but each block is supported and transported by the inner surface of the pipe whose upper half has been cut out, so the upper half of the block is divided into 1/2 circular blocks ( 1α, 1, and the lower half 1/2 circular block (1'4.1'A)K can be separated and transported and removed.Also, the existing piping (1) arranged at an angle can be Even if the blocks are bent, they are supported by the cables on the upper side, so they can be transported and removed downward by using the inner surface of the pipe. If the self-propelling power of the block is insufficient, or if there are some horizontal sections or reverse slope sections in the middle of the piping, take measures such as connecting cables to the bottom of each block for traction. In addition, large-diameter pipes often have circumferential connections, which can be separated by bolts, etc. at the connections, and in the case of short pipes, they can be separated at joints. This can be done by separating each.

(発明の作用効果) 前述のように本発明方法においては、傾斜配置の既設配
管(1)における上半部分を、下部側から上部に向って
順次に分断して上半ブロック(lC)、(1h)。
(Operations and Effects of the Invention) As described above, in the method of the present invention, the upper half of the existing piping (1) arranged at an incline is sequentially divided from the lower side toward the upper side to form the upper half blocks (LC), ( 1h).

(11?)、・・・にするとともに、前記各上半ブロッ
クを索条(2)で支持し既設配管(1)の内面利用によ
り運搬を繰り返して撤去したのち、上半部分切除配管(
1)を、その上部側から下部に向って順次に分断して下
半ブロック(色)、 <1’b)、 <1’e)Kする
とともK、前記各下半ブロック(1′a)、 (1′b
)、 (i′C)* −・・を索条(2)で支持し上半
切除配管(1つの内面利用により運搬を繰り返して撤去
するため、撤去設備は巻取機、索条程度ですみ撤去作業
の準備が極めて簡単であるとともに、既設配管は上半部
分と下半部分とに分けられさらに適宜の長さのブロック
としその運搬、撤去が極めて容易になシ、さらに前記各
ブロックは配管の内面をシュータ−として利用すること
Kよシ運搬されるため、安全、円滑に運搬でき、極めて
能率よく短期間で撤去可能できるなどの効果を有してい
る。
(11?),..., and after supporting each upper half block with cables (2) and repeatedly transporting and removing it by using the inner surface of the existing pipe (1), the upper half of the block was removed (
1) is sequentially divided from the upper side to the lower side to create the lower half blocks (color), <1'b), <1'e) K, and each of the lower half blocks (1'a). , (1'b
), (i'C)* -... are supported by cables (2) and the upper half of the pipe is removed (using one inner surface for repeated transportation and removal, so the only removal equipment is a winder and cables). Preparation for the removal work is extremely simple, and the existing piping is divided into an upper half and a lower half, and furthermore, it is extremely easy to transport and remove the blocks of appropriate length. Since the inner surface of the container is used as a shooter, it can be transported safely and smoothly, and can be removed extremely efficiently and in a short period of time.

以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱しない範囲内で種々の設計の改変を施し
うるものである。
Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design modifications can be made without departing from the spirit of the present invention. .

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

第1図(A)〜(G)は、本発明の各撤去行程を示した
側面図、第2図は従来の既設配管の撤去設備を示す側面
図である。 l:既設配管、1′二上半部分切除配管、lz、IA、
lC:上半ブロック、1′a、 1/ 4 、1/ c
 :下半ブロック、2:索条 復代理人 弁理士岡本重文 外2名 第1図
FIGS. 1A to 1G are side views showing each removal process of the present invention, and FIG. 2 is a side view showing conventional equipment for removing existing piping. l: Existing pipe, 1'2 upper half pipe removed, lz, IA,
lC: Upper half block, 1'a, 1/4, 1/c
:Lower half block, 2: Sokujo sub-agent, patent attorney Shigefumi Okamoto and two others Figure 1

Claims (1)

【特許請求の範囲】[Claims] 傾斜配置の既設配管における上半部分を、下部側から上
部に向って順次に分断して上半ブロックにするとともに
、前記各上半ブロックを索条で支持し既設配管の内面利
用により運搬を繰り返して撤去したのち、上半部分切除
配管を、その上部側から下部に向って順次に分断して下
半ブロックにするとともに、前記各下半ブロックを索条
で支持し上半部分切除配管の内面利用により運搬を繰り
返して撤去することを特徴とする既設配管の撤去方法。
The upper half of the existing piping, which is arranged at an angle, is successively divided from the bottom to the top to form upper half blocks, and each of the upper half blocks is supported with cables and transported repeatedly by using the inner surface of the existing piping. After removing the upper half of the pipe, the upper half of the pipe is sequentially divided from the upper side to the lower part to form lower half blocks, and each of the lower half blocks is supported by cables, and the inner surface of the upper half of the pipe is removed. A method for removing existing piping that is characterized by repeated transportation and removal depending on use.
JP60031573A 1985-02-21 1985-02-21 Method of removing existing piping Pending JPS61192983A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60031573A JPS61192983A (en) 1985-02-21 1985-02-21 Method of removing existing piping

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60031573A JPS61192983A (en) 1985-02-21 1985-02-21 Method of removing existing piping

Publications (1)

Publication Number Publication Date
JPS61192983A true JPS61192983A (en) 1986-08-27

Family

ID=12334914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60031573A Pending JPS61192983A (en) 1985-02-21 1985-02-21 Method of removing existing piping

Country Status (1)

Country Link
JP (1) JPS61192983A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6907951B2 (en) 2000-03-07 2005-06-21 Arctic Cat, Inc. Snowmobile planetary drive system
US7063639B2 (en) 2000-03-07 2006-06-20 Arctic Cat Inc. Snowmobile planetary drive system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6907951B2 (en) 2000-03-07 2005-06-21 Arctic Cat, Inc. Snowmobile planetary drive system
US7063639B2 (en) 2000-03-07 2006-06-20 Arctic Cat Inc. Snowmobile planetary drive system

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