JPS6225672A - Disassembling of chimney - Google Patents

Disassembling of chimney

Info

Publication number
JPS6225672A
JPS6225672A JP16359685A JP16359685A JPS6225672A JP S6225672 A JPS6225672 A JP S6225672A JP 16359685 A JP16359685 A JP 16359685A JP 16359685 A JP16359685 A JP 16359685A JP S6225672 A JPS6225672 A JP S6225672A
Authority
JP
Japan
Prior art keywords
chimney
concrete
blade
destroyed
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.)
Pending
Application number
JP16359685A
Other languages
Japanese (ja)
Inventor
岸田 達夫
松田 輝之
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen Corp
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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP16359685A priority Critical patent/JPS6225672A/en
Publication of JPS6225672A publication Critical patent/JPS6225672A/en
Pending legal-status Critical Current

Links

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、鉄筋コンクリートT!J煙突の解体工法に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to reinforced concrete T! This is related to the demolition method for J chimney.

従来の技術 従来より鉄筋コンクリート製煙突を解体する場合には、
第7図に示すように、煙突1の外周壁に而して足場2を
組み上げ、足場2から作業者3がブレーカやコールピッ
クハンマ等のはつり工具4を使用して煙突1のコンクリ
ートを破壊し、煙突1を解体していた。
Conventional technology When dismantling a reinforced concrete chimney,
As shown in Fig. 7, a scaffold 2 is erected around the outer peripheral wall of the chimney 1, and a worker 3 from the scaffold 2 destroys the concrete of the chimney 1 using a chisel tool 4 such as a breaker or a coal pick hammer. , Chimney 1 was being dismantled.

発明が解決しようとする問題点 しかし、上記従来の工法によれば、■騒音が発生するた
め、騒音公害防止の面から作業に時間的及び場所的制約
を受けるという問題があり、また、■はつり工具4の振
動により作業者3の身体に障害が発生したり、人力を要
する高所作業であるため安定を失なったり、コンクリー
トの粉末が飛散するなど作業者3の安全衛生上に問題が
あり、さらに、■作業の時間的制約、非能率などにより
多くの作業日数と人手を要し、工事コス1−が上昇する
という問題があった。
Problems to be Solved by the Invention However, according to the above-mentioned conventional construction methods, there are two problems: (1) Noise is generated, and work is subject to time and location restrictions from the perspective of noise pollution prevention; There are health and safety problems for the worker 3, such as the vibration of the tool 4 causing injury to the worker's body, the work being performed at heights requiring human power, resulting in loss of stability, and the scattering of concrete powder. Furthermore, there is the problem that (1) more work days and manpower are required due to work time constraints and inefficiency, resulting in an increase in construction costs.

本発明は、上記問題点を解消した煙突の解体工法を提供
することを目的とする。
An object of the present invention is to provide a chimney dismantling method that eliminates the above-mentioned problems.

問題点を解決するための手段 上記問題を解決するため、本発明の煙突の解体工法は、
少なくとも略水平の2方向シリンダ装置により出退自在
に移動させられる杆を具備し、この杆のうち少なくとも
一つの杆の先端部に刃部が装着されてなるコンクリート
破壊装置を鉄筋コンクリート製煙突の内部に昇降かつ旋
回自在に水平に吊設し、前記シリンダ装置を作動して前
記刃部を前記煙突の内周壁に押し込むことにより前記煙
突のコンクリートを破壊し、次に、前記刃部を引込めて
前記コンクリート破壊装置を4降又は旋回させ、前記方
法と同様の方法で新たな個所のコンクリートを破壊し、
以後、前記方法を繰り返えずことにより前記煙突のコン
クリートを破壊することを特徴とするものである。
Means for Solving the Problems In order to solve the above problems, the chimney demolition method of the present invention is as follows:
A concrete breaking device is installed inside a reinforced concrete chimney, and is equipped with a rod that can be moved in and out using at least a substantially horizontal two-way cylinder device, and a blade is attached to the tip of at least one of the rods. It is suspended horizontally so that it can be raised and lowered and rotated freely, and the concrete of the chimney is destroyed by activating the cylinder device to push the blade into the inner circumferential wall of the chimney, and then the blade is retracted to The concrete breaking device is lowered or rotated four times, and the concrete in a new location is destroyed in the same manner as the above method,
Thereafter, the method is characterized in that the concrete of the chimney is destroyed by not repeating the method.

作用 上記構成において、刃部をシリンダ8置により押し出し
て煙突の内周壁に押し込むと、従来のはつり作業と異な
り、I!I音や振動が発生することなく煙突のコンクリ
ートが破壊される。1g所のコンクリートを破壊づると
、刃部を引込めてコンクリート破iif装置を所望程度
昇降又は旋回させ、新たな個所のコンクリートを破壊す
る。以後、このような方法を繰り返えすことにより煙突
のコンクリートを破壊し、煙突を解体するのである。
Effect In the above configuration, when the blade part is pushed out by the cylinder 8 and pushed into the inner circumferential wall of the chimney, unlike conventional chisel work, I! The concrete of the chimney is destroyed without generating any noise or vibration. Once 1 g of concrete has been destroyed, the blade is retracted and the concrete breaking IIF device is moved up and down or rotated to a desired extent to destroy concrete in a new location. After that, by repeating this method, the concrete of the chimney is destroyed and the chimney is dismantled.

実施例 以下、本発明の一実施例を第1図〜第6図に基づいて説
明する。
EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 6.

本実施例の工法において使用されるコンクリート破#i
装置10は、第6図に示すように、円筒状の中間部材1
1の両端面に2個の油圧(又は空気)シリンダ8置12
a 、 12bが固設されてなる。中間部材11の中央
部には閉り金具13が固着されている。
Concrete fracture #i used in the construction method of this example
As shown in FIG. 6, the device 10 includes a cylindrical intermediate member 1.
Two hydraulic (or air) cylinders 8 and 12 on both end faces of 1
a and 12b are fixedly installed. A closing fitting 13 is fixed to the center of the intermediate member 11.

各シリンダ装置12a 、 12bは、シリンダ14a
Each cylinder device 12a, 12b has a cylinder 14a
.

14bの内部に摺動自在に嵌装されたピストン15a。A piston 15a is slidably fitted inside the piston 14b.

15bに杆16a 、 16bが出退自在に支持されて
なる。
Rods 16a and 16b are supported on 15b so that they can move in and out.

一方の杆16aの先端部には先の尖った刃部17が、他
方の杆16bの先端部には揺動自在に当板18が装着さ
れている。各シリンダ14a 、 14bには、4個の
ホース19のそれぞれの一端が各ピストン15a。
A sharp blade portion 17 is attached to the tip of one of the rods 16a, and a stop plate 18 is swingably attached to the tip of the other rod 16b. Each cylinder 14a, 14b has one end of each of the four hoses 19 connected to each piston 15a.

15bの両側の内部空間に連通ずるように接続され、他
端は駆動ユニット20(第1図参照)に接続されている
It is connected so as to communicate with the internal space on both sides of 15b, and the other end is connected to the drive unit 20 (see FIG. 1).

まず、第1図及び第2図に示すように、解体すべき鉄筋
コンクリート製煙突21の外囲壁に而して外足f322
を組み上げ、外足@22の頂部に複数個の梁23を架設
する。煙突21の外囲壁は安全のため飛散防護材24に
より覆われる。梁23から複数個の電動チェンブロック
のごとき揚重装置25を介して円盤状の尾り足場26を
煙突21の内部に?? 11111自在に吊設する。コ
ンクリート破壊gvIioは、中央の梁23から別個の
揚重装置27を介して吊り金具13により吊り足場26
の上方に?降かつ旋回自在に水平に吊設される。吊り足
場26の上面には駆動ユニツ]−20が載設される。各
揚重装置25.27は吊り足gA26上から遠隔操作可
能とされている。
First, as shown in FIGS. 1 and 2, the outer foot f322 is attached to the outer wall of the reinforced concrete chimney 21 to be demolished.
are assembled, and a plurality of beams 23 are constructed on the top of the outer leg @22. The outer wall of the chimney 21 is covered with a scattering protection material 24 for safety. A disc-shaped tail scaffold 26 is placed inside the chimney 21 from the beam 23 via a lifting device 25 such as a plurality of electric chain blocks. ? 11111 Can be hung freely. Concrete destruction gvIio is carried out by lifting the scaffolding 26 from the central beam 23 via a separate lifting device 27 with the hanging fittings 13.
Above? It is suspended horizontally so that it can be lowered and rotated freely. A driving unit]-20 is mounted on the upper surface of the hanging scaffold 26. Each lifting device 25, 27 can be remotely controlled from the suspension leg gA26.

次に、作業者(図示省略)が吊り足@26ヒに乗り、I
型装置fi25.27により吊り足場26及びコンクリ
ート破壊′装置10を煙突21の頂部付近の適当な位置
に停止させる。刃部17を煙突21の内周壁の適当な位
置に向け、駆動ユニット20により両シリンダ装置12
a 、 12bを作動させ、刃部17を押し出して煙突
21の内周壁に押し込むと同時に、当板18を押し出し
て反対側の内周壁に当接させる。これにより、刃部17
は煙突21のコンクリートの1個所を破壊する。
Next, the worker (not shown) gets on the hanging leg @26hi and
The hanging scaffolding 26 and the concrete breaking device 10 are stopped at an appropriate position near the top of the chimney 21 by the molding devices fi25 and 27. The blade part 17 is directed to an appropriate position on the inner circumferential wall of the chimney 21, and both cylinder devices 12 are moved by the drive unit 20.
a and 12b are activated to push out the blade portion 17 and push it into the inner circumferential wall of the chimney 21, and at the same time push out the contact plate 18 and bring it into contact with the inner circumferential wall on the opposite side. As a result, the blade portion 17
destroys one part of the concrete in chimney 21.

次に、駆動ユニット20により刃部17を引込め、コン
クリート破LWi装置10を旋回又は昇降させて刃部1
7を次の破壊位置に向け、上記方法と同様の方法で煙突
21のコンクリートを破壊する。刃部17の移妨は、螺
旋状に行うことが解体吊を安定さ往る点で好ましく、ま
た、予めカッタ等でコンクリート表面に切欠き溝を形成
してお(プば破壊が容易となるので効果的である。なお
、コンクリートを破壊した後に残った鉄筋は、ガス切断
やカッタ等により適宜除去する。
Next, the blade part 17 is retracted by the drive unit 20, and the concrete breaking LWi device 10 is rotated or raised/lowered to remove the blade part 17.
7 to the next destruction position, and destroy the concrete of the chimney 21 in the same manner as above. It is preferable to move the blade part 17 in a spiral shape to ensure stability during dismantling and lifting.Also, it is preferable to form a notch groove in the concrete surface with a cutter or the like in advance (this will make it easier to move the blade part 17). Therefore, it is effective.The reinforcing bars remaining after destroying the concrete are removed as appropriate using gas cutting, cutters, etc.

上記のようにして、煙突21を頂部より逐次解体して行
き、第3図に示すように、適当な高さまで解体づれば、
第4図に示すように、別個の梁23aを外足場22の適
当な高さの位置に架設し、梁23aから別個の楊!I!
装置25a 、 27aにより吊り足場26及びコンク
リート破if?装置10を当初のように吊り換え、余分
となった楊子装置25.27、梁23及び外足場22の
上部22a 、 22b 、 22cを第5図に示すよ
うに順序よく撤去する。しかる後、上記の解体作業を再
開する。
As described above, the chimney 21 is dismantled one by one starting from the top, and as shown in Fig. 3, if it is dismantled to an appropriate height,
As shown in FIG. 4, a separate beam 23a is erected at an appropriate height on the outer scaffolding 22, and a separate beam 23a is installed from the beam 23a. I!
The devices 25a and 27a break the suspended scaffolding 26 and concrete if? The apparatus 10 is resuspended as before, and the excess toothpick apparatuses 25, 27, beams 23, and upper parts 22a, 22b, and 22c of the outer scaffolding 22 are removed in order as shown in FIG. After that, the above demolition work will resume.

以後、上記の各作業を繰り返えすごとにより、鉄筋コン
クリート製煙突21を頂部から順次解体して行くのであ
る。
Thereafter, by repeating each of the above operations, the reinforced concrete chimney 21 is sequentially dismantled starting from the top.

なお、揚重装置25.27は必ずしも電動式に限定でる
ものではなく、手動式のチェンブロックやチルホール等
でもよい。この場合は、吊り足場26から操作可能な範
囲ごとに帛換えを行えばよい。また、外足場22の外周
に防災シート28を張設することは、安全作業上当然に
必要なことである。
Note that the lifting devices 25 and 27 are not necessarily limited to electric types, and may be manually operated chain blocks, chill holes, or the like. In this case, the folding may be changed for each operable range from the hanging scaffold 26. Moreover, it is naturally necessary to stretch the disaster prevention sheet 28 around the outer periphery of the outer scaffolding 22 for safe work.

発明の効果 以上述べたごとく本発明によれば、油圧等のシリンダH
[Iによる無振動、無衝撃のコンクリート破壊装置を使
用して煙突のコンクリートを破壊するので、衝撃音や振
動音による騒音が発生しない。
Effects of the Invention As described above, according to the present invention, the hydraulic cylinder H
[Since the chimney concrete is destroyed using a non-vibration, non-impact concrete breaking device by I, no noise is generated due to impact or vibration sounds.

従って、解体作業に時間的、場所的制約を受けず、民家
、病院、学校等に近い場所でもいつでも作業が可能とな
る。また、作業者の身体に振動による障害が発生するこ
とがなく、人力を殆んど必要としないので安全かつ能率
的に高所作業が可能であり、安全衛生及び能率の面です
ぐれている。また、コンクリートの破壊に際し、コンク
リートの粉末が発生、飛散しないので、作業環境が衛生
的となる。さらに、作業時間に制約がないので、工期の
短縮、工費の低減が図れるなど多大の効果を奏する。
Therefore, demolition work is not subject to time or place restrictions, and work can be carried out at any time, even in places near private houses, hospitals, schools, etc. In addition, there is no vibration-related damage to the worker's body, and almost no human power is required, so high-place work can be done safely and efficiently, which is excellent in terms of safety, health, and efficiency. Furthermore, since concrete powder is not generated or scattered when concrete is destroyed, the working environment becomes sanitary. Furthermore, since there are no restrictions on work time, it has great effects, such as shortening the construction period and reducing construction costs.

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

第1図及び第3図〜第5図は本発明の一実施例における
各工程を示す断面図、第2図は第1図の平面図、第6図
は本発明のコンクリート破壊装置の一実施例を示す破砕
断面図、第7図は従来の解体工法の一例を示す断面図で
ある。 10・・・コンクリート破壊装置、12a 、 12b
・・・シリンダ装置、16a 、 16b・・・杆、1
7・・・刃部、21・・・煙突代理人   森  本 
 義  弘 第3図 第4図 リ− ml
Figures 1 and 3 to 5 are cross-sectional views showing each process in an embodiment of the present invention, Figure 2 is a plan view of Figure 1, and Figure 6 is an implementation of the concrete breaking device of the present invention. FIG. 7 is a sectional view showing an example of a conventional demolition method. 10... Concrete breaking device, 12a, 12b
... Cylinder device, 16a, 16b... Rod, 1
7... Blade, 21... Chimney agent Morimoto
Yoshihiro Figure 3 Figure 4 Lee ml

Claims (1)

【特許請求の範囲】[Claims] 1、少なくとも略水平の2方向シリンダ装置により出退
自在に移動させられる杆を具備し、この杆のうち少なく
とも一つの杆の先端部に刃部が装着されてなるコンクリ
ート破壊装置を鉄筋コンクリート製煙突の内部に昇降か
つ旋回自在に水平に吊設し、前記シリンダ装置を作動し
て前記刃部を前記煙突の内周壁に押し込むことにより前
記煙突のコンクリートを破壊し、次に、前記刃部を引込
めて前記コンクリート破壊装置を昇降又は旋回させ、前
記方法と同様の方法で新たな個所のコンクリートを破壊
し、以後、前記方法を繰り返えすことにより前記煙突の
コンクリートを破壊することを特徴とする煙突の解体工
法。
1. A concrete breaking device, which is equipped with a rod that can be moved in and out by at least a substantially horizontal two-way cylinder device and has a blade attached to the tip of at least one of the rods, is installed in a reinforced concrete chimney. It is suspended horizontally inside so that it can be raised and lowered and rotated freely, and the concrete of the chimney is destroyed by operating the cylinder device to push the blade into the inner circumferential wall of the chimney, and then the blade is retracted. The chimney is characterized in that the concrete in the chimney is destroyed by raising, lowering or rotating the concrete breaking device, destroying concrete in a new location using the same method as the method described above, and repeating the method thereafter. demolition method.
JP16359685A 1985-07-24 1985-07-24 Disassembling of chimney Pending JPS6225672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16359685A JPS6225672A (en) 1985-07-24 1985-07-24 Disassembling of chimney

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16359685A JPS6225672A (en) 1985-07-24 1985-07-24 Disassembling of chimney

Publications (1)

Publication Number Publication Date
JPS6225672A true JPS6225672A (en) 1987-02-03

Family

ID=15776924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16359685A Pending JPS6225672A (en) 1985-07-24 1985-07-24 Disassembling of chimney

Country Status (1)

Country Link
JP (1) JPS6225672A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257709A (en) * 1988-03-29 1993-11-02 Dai Nippon Insatsu Kabushiki Kaisha Container provided with metallic cover and method and apparatus for manufacturing the same
JP2004183450A (en) * 2002-10-10 2004-07-02 Nishimatsu Constr Co Ltd Device and method for demolishing tower-like structure
JP2006132181A (en) * 2004-11-05 2006-05-25 Penta Ocean Constr Co Ltd Scaffold device for construction and demolition of tower-like building and demolition method for tower-like building by use of this device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52144132A (en) * 1976-05-26 1977-12-01 Shimizu Construction Co Ltd Climbing scaffolding device used for disassembling towerrlike highhstorey building
JPS57161271A (en) * 1981-03-30 1982-10-04 Tokyo Shibaura Electric Co Apparatus for cutting and disassembling atomic reactor structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52144132A (en) * 1976-05-26 1977-12-01 Shimizu Construction Co Ltd Climbing scaffolding device used for disassembling towerrlike highhstorey building
JPS57161271A (en) * 1981-03-30 1982-10-04 Tokyo Shibaura Electric Co Apparatus for cutting and disassembling atomic reactor structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5257709A (en) * 1988-03-29 1993-11-02 Dai Nippon Insatsu Kabushiki Kaisha Container provided with metallic cover and method and apparatus for manufacturing the same
US5584634A (en) * 1988-03-29 1996-12-17 Dai Nippon Insatsu Kabushiki Kaisha Container provided with metallic cover and method and apparatus for manufacturing the same
JP2004183450A (en) * 2002-10-10 2004-07-02 Nishimatsu Constr Co Ltd Device and method for demolishing tower-like structure
JP2006132181A (en) * 2004-11-05 2006-05-25 Penta Ocean Constr Co Ltd Scaffold device for construction and demolition of tower-like building and demolition method for tower-like building by use of this device

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