JP2914162B2 - How to dismantle a water gas tank - Google Patents

How to dismantle a water gas tank

Info

Publication number
JP2914162B2
JP2914162B2 JP3143294A JP3143294A JP2914162B2 JP 2914162 B2 JP2914162 B2 JP 2914162B2 JP 3143294 A JP3143294 A JP 3143294A JP 3143294 A JP3143294 A JP 3143294A JP 2914162 B2 JP2914162 B2 JP 2914162B2
Authority
JP
Japan
Prior art keywords
jack
columns
side wall
frame
tank body
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 - Lifetime
Application number
JP3143294A
Other languages
Japanese (ja)
Other versions
JPH07238691A (en
Inventor
恭司 吉野
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.)
OOBAYASHIGUMI KK
Original Assignee
OOBAYASHIGUMI KK
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 OOBAYASHIGUMI KK filed Critical OOBAYASHIGUMI KK
Priority to JP3143294A priority Critical patent/JP2914162B2/en
Publication of JPH07238691A publication Critical patent/JPH07238691A/en
Application granted granted Critical
Publication of JP2914162B2 publication Critical patent/JP2914162B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

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

【0001】[0001]

【産業上の利用分野】この発明は、有水ガスタンクの解
体方法に関し、特にタンク本体の周囲を包囲する架構を
安全に解体する方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for disassembling a water gas tank, and more particularly to a method for safely disassembling a frame surrounding a tank body.

【0002】[0002]

【従来の技術】有水ガスタンクは、下部側壁の内側に昇
降自在に配置されたテレスコピック状の複数の側壁と、
該側壁の最上部に設けた屋根を備えたタンク本体と、前
記下部側壁の外側に複数の支柱を一体に接続し、該タン
ク本体の周囲を囲う架構とからなるもので、前記テレス
コピック状側壁の下部を水に浸漬して気密性を保持し、
上部にガスを充填したもので最充填された状態でタンク
本体は最も伸長するため、前記架構の高さはその最伸長
時の高さに応じた高さに構築されている。
2. Description of the Related Art A water-containing gas tank has a plurality of telescopic side walls arranged inside a lower side wall so as to be movable up and down.
A tank body having a roof provided at the uppermost portion of the side wall, and a frame that integrally connects a plurality of columns outside the lower side wall and surrounds the periphery of the tank body. Immerse the lower part in water to maintain airtightness,
Since the tank body extends most when the upper part is filled with gas and is most filled, the height of the frame is constructed to a height corresponding to the height at the time of the most elongation.

【0003】[0003]

【発明が解決しようとする課題】この有水ガスタンクの
解体時においては、ガスを抜くことによって側壁を収縮
させることでタンク本体の高さを低くした状態で解体で
きるが、架構の解体には高所での切断作業と、大形クレ
ーンによる吊下ろし作業が伴うため、溶断時における火
花の飛散や切断片の風による落下等の危険性が伴い、高
所作業であるため作業能率が悪い欠点があった。また、
近隣に対しては頭上で火花が見えたり、大形クレーンに
よる解体物の振り回しなどにより不安感をもたらす惧れ
があった。なお、タンクの解体方法として、一般にタン
クの下縁を複数のジャッキで支持しながら切断し、ジャ
ッキダウンすることを繰返すことにより解体する方法が
知られているが、高さが高く、複数の支柱によって支持
されている架構に適用した場合には、解体中の地震,風
などの横力に対して十分な安全性が確保できない欠点が
あった。
At the time of disassembly of the water-containing gas tank, the tank body can be disassembled while the height of the tank body is reduced by contracting the side wall by removing gas. This involves cutting work in a place and hanging work with a large crane, which creates the risk of sparks scattering at the time of fusing and falling of cut pieces due to wind, etc. there were. Also,
There was a fear that sparks could be seen overhead, or a large crane swirling dismantled objects would cause anxiety to the neighborhood. In addition, as a method of dismantling a tank, a method is generally known in which the lower edge of the tank is cut while being supported by a plurality of jacks, and the tank is dismantled by repeating jack-down. However, when applied to a frame supported by the company, there is a disadvantage that sufficient safety cannot be secured against lateral forces such as earthquakes and winds during dismantling.

【0004】この発明は以上の問題を解決するものであ
って、その目的は、この種の有水ガスタンクにおける架
構を横力に対して十分な安全性を確保しつつ、ジャッキ
ダウン方式によって順次高さを減じつつ解体できるよう
にした有水ガスタンクの解体方法を提供するものであ
る。
The present invention has been made to solve the above problems, and an object of the present invention is to gradually increase the height of a frame in a water gas tank of this type by a jack-down system while ensuring sufficient safety against lateral force. It is an object of the present invention to provide a method for dismantling a water gas tank which can be dismantled while reducing its size.

【0005】[0005]

【課題を解決するための手段】前記目的を達成するた
め、この発明は、下部側壁の内側に昇降自在に配置され
たテレスコピック状の複数の側壁と、該側壁の最上部に
設けた屋根を備えたタンク本体と、前記下部側壁の外側
に複数の支柱を一体に接続し、前記タンク本体の最伸長
時の高さに設定されて該タンク本体の周囲を囲う架構と
からなる有水ガスタンクの解体方法であって、前記下部
側壁に、前記各支柱の両側面に摺接して転動するガイド
ローラを設けたガイド治具を固定し、前記各支柱の下端
にジャッキを当接した後、前記各支柱と前記下部側壁と
の接続部を取り外して、前記架構全体の荷重を前記ジャ
ッキに預け、この後前記各支柱の下部を順次切断してそ
の切断長さ分前記ジャッキを伸長させて前記架構全体の
水平を保持し、全ての前記支柱が切断されたら前記ジャ
ッキを収縮させて前記架構全体をジャッキダウンする作
業を繰返すことを特徴とする。
In order to achieve the above object, the present invention comprises a plurality of telescopic side walls arranged inside a lower side wall so as to be able to move up and down, and a roof provided at the top of the side walls. Disassembly of a water gas tank comprising a tank body and a plurality of columns integrally connected to the outside of the lower side wall, and a frame surrounding the periphery of the tank body set to the height of the tank body at the maximum extension. The method, wherein a guide jig provided with a guide roller that rolls by sliding on both side surfaces of each of the columns is fixed to the lower side wall, and a jack is abutted on a lower end of each of the columns. The connecting portion between the column and the lower side wall is removed, the load of the entire frame is deposited in the jack, and then the lower portions of the columns are sequentially cut, and the jack is extended by the cut length to extend the entire frame. Keep the horizontal of everything And wherein the repeating the work of the strut jacking down the rack 構全 body to contract the jack if it is cut.

【0006】[0006]

【作用】以上の構成によれば、各支柱はガイドローラに
より横方向の移動が拘束され、水平外力に十分な抵抗を
もたらした状態で地上部で切断及びジャッキダウン操作
を交互に行うことにより順次解体することができる。
According to the above construction, the lateral movement of each column is restrained by the guide rollers, and the cutting and jacking down operations are alternately performed on the ground portion in a state where sufficient resistance to the horizontal external force is brought about. Can be dismantled.

【0007】[0007]

【実施例】以下、この発明の一実施例を図面を用いて詳
細に説明する。図1(a),(b)はこの発明の解体方
法が適用される有水タンクの側面図および断面図であ
り、タンク本体1は、下部側壁2の内側に昇降自在に配
置されたテレスコピック状の複数の側壁3と、該側壁の
最上部に設けた屋根4を備え、また最下部の側壁3の内
側には水Wがはられ、内部の気密性を確保している。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 (a) and 1 (b) are a side view and a sectional view of a water tank to which the disassembly method of the present invention is applied. A tank body 1 is telescopically arranged inside a lower side wall 2 so as to be able to move up and down. Are provided with a plurality of side walls 3 and a roof 4 provided at the uppermost portion of the side walls. Water W is spread inside the lowermost side wall 3 to ensure airtightness inside.

【0008】架構5は、前記下部側壁2の外側に上下二
ケ所設けられた接続部6を介して複数の支柱7を一体に
接続するとともに、支柱の周囲に複数段の作業足場8を
一体化したもので、前記タンク本体1の最伸長時の高さ
に応じた高さに設定されている。
The frame 5 integrally connects a plurality of columns 7 via two connecting portions 6 provided at upper and lower portions outside the lower side wall 2 and integrates a plurality of steps of work scaffolds 8 around the columns. The height is set in accordance with the height of the tank body 1 at the time of maximum extension.

【0009】以上の構造の有水タンクを解体するに当た
り、準備作業として図2に示すように、前記各支柱7の
左右および前面に摺接して転動するガイドローラ10を
軸受したコ字形のガイド治具11を下部側壁2の外側部
に溶接などにより固定する。この固定箇所は一本の支柱
7に対し、上下二ケ所とすることが望ましい。次いで、
各支柱7の下部にジャッキ12のプランジャ12aを押
当てる。
In disassembling the water tank having the above-described structure, as a preparatory operation, as shown in FIG. 2, a U-shaped guide bearing a guide roller 10 that slides on the left and right and the front of each of the columns 7 and rolls. The jig 11 is fixed to the outside of the lower side wall 2 by welding or the like. It is desirable that the fixing portion be two upper and lower portions with respect to one pillar 7. Then
The plunger 12 a of the jack 12 is pressed against the lower part of each support 7.

【0010】その後、各支柱7の接続部6を切断して下
部側壁2から切離すことにより、架構5の全体の荷重は
各ジャッキ12に預けられ、解体準備作業が完了する。
Thereafter, by cutting the connecting portion 6 of each column 7 and separating it from the lower side wall 2, the entire load of the frame 5 is deposited in each jack 12, and the dismantling preparation work is completed.

【0011】なおこの時点で、各ジャッキ12のプラン
ジャ12aが伸び切っている場合にはジャッキダウンす
ることで、架構5全体はそのストローク分だけ下降し、
最大に没入させた後解体作業を開始する。
At this time, if the plungers 12a of the jacks 12 have been fully extended, the jacks are lowered to lower the entire frame 5 by the stroke.
Start dismantling work after maximum immersion.

【0012】図3(a)〜(f)はその解体手順を示す
もので、先ず(a)に示すように、各支柱7のそれぞれ
下部をプランジャ12aのジャッキストローク分の長さ
切断し、その分プランジャ12aを突出させて各支柱7
の荷重を受けることにより架構5の全体を水平に保つ作
業を繰返す。なお、この切断およびジャッキ伸長作業は
同時複数箇所で行うとジャッキ12の一個当たりの負担
が大きく、また不安定になるので、タンク本体1の対角
線上に位置支柱7を交互に切断し、ジャッキ12の伸長
作業を行えば安定した状態に保持できる。
FIGS. 3 (a) to 3 (f) show the disassembly procedure. First, as shown in FIG. 3 (a), the lower part of each of the columns 7 is cut by the length of the jack stroke of the plunger 12a. Protruding the minute plunger 12a, each column 7
The operation of keeping the whole frame 5 horizontal by receiving the load of the above is repeated. If the cutting and the jack extension work are performed at a plurality of locations at the same time, the load per jack 12 becomes large and the jack 12 becomes unstable. Therefore, the position supporting columns 7 are alternately cut on the diagonal line of the tank body 1 and the jack 12 By performing the elongation work, the stable state can be maintained.

【0013】以上の切断,伸長作業を全ての支柱7につ
いて行った状態を(b)に示す。この状態では全てのジ
ャッキ12は伸長しいるので、各ジャッキ12を一斉に
ジャッキダウンさせれば、(c)に示すように、架構5
全体はジャッキストローク分下降する。
FIG. 2B shows a state in which the above cutting and extending work has been performed on all the columns 7. In this state, since all the jacks 12 are elongated, if the jacks 12 are simultaneously jacked down, as shown in FIG.
The whole descends by the jack stroke.

【0014】この際各支柱7はガイドローラ10にガイ
ドされつつ下降されるため、安定した下降動作を確保で
きる。
At this time, since the columns 7 are lowered while being guided by the guide rollers 10, a stable lowering operation can be ensured.

【0015】以下、次々と前記と同様に地上部でカット
およびジャッキダウン操作を繰返せば、(d)に示すよ
うに架構5の天端が下部側壁2の天端まで下ろされる。
なお、この作業の間は支柱7の切断のみでなく作業足場
8および補強鋼材などの解体も行われる。
Thereafter, if the cutting and jacking-down operations are repeated on the ground portion one after another as described above, the top end of the frame 5 is lowered to the top end of the lower side wall 2 as shown in FIG.
During this operation, not only the cutting of the column 7 but also the dismantling of the work scaffold 8 and the reinforcing steel material are performed.

【0016】この高さまで下ろした場合には周囲の安全
性に対して十分であり、小形クレーン等の重機による解
体作業が可能な範囲となる。したがって、この後は
(e)に示すように、架構5を周方向に個々に切断しな
がらクレーンで吊り、地上部に下ろすことができる。そ
の後は、図4(f)に示すようにタンク本体1も個々の
パネル1aに解体しつつクレーンによって吊り下ろすこ
とができる。
If the height is lowered to this level, the safety of the surroundings is sufficient, and the dismantling operation by a heavy machine such as a small crane is possible. Therefore, thereafter, as shown in (e), the frame 5 can be suspended by a crane while being individually cut in the circumferential direction, and can be lowered to the ground. Thereafter, as shown in FIG. 4 (f), the tank body 1 can be suspended by a crane while being dismantled into individual panels 1a.

【0017】[0017]

【発明の効果】以上実施例によって詳細に説明したよう
に、各支柱はガイドローラにより横方向の移動が拘束さ
れ、水平外力に十分な抵抗をもたらした状態で地上部で
切断及びジャッキダウン操作を交互に行うことにより順
次解体することができるため、高所から順に解体作業を
行う場合に比べて全てが地上作業となり、安全性が高
く、作業能率も格段に向上するとともに、近隣から作業
状態が見えず、不安感などを与えない利点がある。
As described in detail in the above embodiments, the lateral movement of each column is restrained by the guide roller, and the cutting and jacking down operations are performed on the ground portion in a state where sufficient resistance to external horizontal force is brought about. Since they can be dismantled sequentially by performing them alternately, everything is ground work compared to the case where dismantling work is performed in order from a high place, safety is high, work efficiency is significantly improved, and work conditions from nearby It has the advantage of not being visible and not giving anxiety.

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

【図1】(a)はこの発明の解体方法が適用される有水
タンクの側面図である。(b)は同断面図である。
FIG. 1A is a side view of a water tank to which a dismantling method of the present invention is applied. (B) is the same sectional view.

【図2】架構の支柱をガイドローラで支持するととも
に、下部をジャッキで支持した状態を示す斜視図であ
る。
FIG. 2 is a perspective view showing a state in which a support of a frame is supported by a guide roller and a lower portion is supported by a jack.

【図3】(a)〜(f)は解体手順を示す側面図であ
る。
FIGS. 3A to 3F are side views showing a disassembly procedure.

【符号の説明】[Explanation of symbols]

1 タンク本体 2 下部側壁 3 側壁 4 屋根 5 架構 6 接続部 7 支柱 10 ガイドローラ 11 ガイド治具 12 ジャッキ 12a プランジャ DESCRIPTION OF SYMBOLS 1 Tank main body 2 Lower side wall 3 Side wall 4 Roof 5 Frame 6 Connection part 7 Prop 10 Guide roller 11 Guide jig 12 Jack 12a Plunger

フロントページの続き (58)調査した分野(Int.Cl.6,DB名) E04G 23/08 F17B 1/00 Continuation of front page (58) Field surveyed (Int.Cl. 6 , DB name) E04G 23/08 F17B 1/00

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 下部側壁の内側に昇降自在に配置された
テレスコピック状の複数の側壁と、該側壁の最上部に設
けた屋根を備えたタンク本体と、前記下部側壁の外側に
複数の支柱を一体に接続し、前記タンク本体の最伸長時
の高さに設定されて該タンク本体の周囲を囲う架構とか
らなる有水ガスタンクの解体方法であって;前記下部側
壁に、前記各支柱の両側面に摺接して転動するガイドロ
ーラを設けたガイド治具を固定し、前記各支柱の下端に
ジャッキを当接した後、前記各支柱と前記下部側壁との
接続部を取り外して、架構全体の荷重を前記ジャッキに
預け、この後前記各支柱の下部を順次切断してその切断
長さ分ジャッキを伸長させて前記架構全体の水平を保持
し、全ての前記支柱が切断されたら前記ジャッキを収縮
させて前記架構全体をジャッキダウンする作業を繰返す
ことを特徴とする有水ガスタンクの解体方法。
1. A plurality of telescopic side walls arranged inside a lower side wall so as to be able to move up and down, a tank body having a roof provided at the top of the side wall, and a plurality of columns outside the lower side wall. A method for dismantling a water gas tank comprising: a frame integrally connected to a frame which is set at a height of the tank body at the maximum extension and surrounds the periphery of the tank body; After fixing a guide jig provided with a guide roller that rolls by sliding on the surface, abuts a jack on a lower end of each of the columns, a connection portion between each of the columns and the lower side wall is removed, and the entire frame is removed. The jack is deposited in the jack, and then the lower portion of each of the columns is sequentially cut to extend the jack by the cut length to keep the entire frame horizontal, and when all the columns are cut, the jack is removed. Shrink the entire frame A method for dismantling a water-containing gas tank, comprising repeating a jack-down operation.
JP3143294A 1994-03-01 1994-03-01 How to dismantle a water gas tank Expired - Lifetime JP2914162B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3143294A JP2914162B2 (en) 1994-03-01 1994-03-01 How to dismantle a water gas tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3143294A JP2914162B2 (en) 1994-03-01 1994-03-01 How to dismantle a water gas tank

Publications (2)

Publication Number Publication Date
JPH07238691A JPH07238691A (en) 1995-09-12
JP2914162B2 true JP2914162B2 (en) 1999-06-28

Family

ID=12331081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3143294A Expired - Lifetime JP2914162B2 (en) 1994-03-01 1994-03-01 How to dismantle a water gas tank

Country Status (1)

Country Link
JP (1) JP2914162B2 (en)

Also Published As

Publication number Publication date
JPH07238691A (en) 1995-09-12

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