JP3000704B2 - How to build a fully buried underground tank - Google Patents
How to build a fully buried underground tankInfo
- Publication number
- JP3000704B2 JP3000704B2 JP3077713A JP7771391A JP3000704B2 JP 3000704 B2 JP3000704 B2 JP 3000704B2 JP 3077713 A JP3077713 A JP 3077713A JP 7771391 A JP7771391 A JP 7771391A JP 3000704 B2 JP3000704 B2 JP 3000704B2
- Authority
- JP
- Japan
- Prior art keywords
- roof
- tank
- concrete
- steel
- buried underground
- 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
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は完全埋設式地下タンクの
建造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a completely buried underground tank.
【0002】[0002]
【従来の技術】近年、低温液化ガス貯蔵施設の建設用地
の地上スペ−スを公園等に有効利用する計画が持ち上が
っており、低温タンク全体を地中に埋設したいわゆる完
全埋設式地下タンクが注目されるようになった。完全埋
設式地下タンクは外槽屋根に覆土が施される構造上、従
来の地上タンクや地下タンク(従来の地下タンクは屋根
部が地上に露出した構造になっている)に比して格段に
強い屋根強度が要求される。この種のタンクの外槽屋根
にはコンクリ−ト製の屋根が適している。2. Description of the Related Art In recent years, there has been a plan to make effective use of the above-ground space of a construction site of a low-temperature liquefied gas storage facility for a park or the like, and a so-called completely buried underground tank in which the entire low-temperature tank is buried underground has attracted attention. It was started. The completely buried underground tank has a structure in which soil is applied to the outer tank roof, making it much more remarkable than conventional ground tanks and underground tanks (conventional underground tanks have a structure in which the roof is exposed above the ground). Strong roof strength is required. A concrete roof is suitable for the outer roof of this type of tank.
【0003】[0003]
【発明が解決しようとする課題】コンクリ−ト製の外槽
屋根を有する地下タンクを形成する際には、地下に有底
筒体状のコンクリ−ト製槽体を形成した後、その上部開
口部を覆って鋼製屋根が形成され、さらにその屋根の上
にコンクリ−トが打設されてコンクリ−ト製外槽屋根が
形成される。したがって、鋼製屋根にはコンクリ−ト打
設時の荷重に耐え得るだけの充分な構造強度が要求さ
れ、鋼製屋根は屋根骨等の強度部材を多数組み合わせた
複雑な構造とならざるを得ない。この鋼製屋根を上記槽
体の上部に形成する作業は、槽体底部より構築した高所
足場上における繁雑な作業となるため能率が悪く、タン
ク建設工期を短縮する上で障害となる。When an underground tank having a concrete outer tank roof is formed, a concrete tank having a bottomed cylindrical shape is formed in the basement, and an upper opening is formed. A steel roof is formed so as to cover the portion, and a concrete is cast on the roof to form a concrete outer tank roof. Therefore, a steel roof is required to have a sufficient structural strength to withstand the load at the time of concrete casting, and the steel roof must have a complicated structure in which a number of strength members such as roof bones are combined. Absent. The work of forming the steel roof on the upper part of the tank body is a complicated work on a high altitude scaffold constructed from the bottom part of the tank body, which is inefficient, and is an obstacle in shortening the tank construction period.
【0004】本発明は、上記課題を解消すべく創案され
たものであり、その目的は外槽上部対する鋼製屋根の形
成が容易に成し得、タンク建設工期を短縮化し得る完全
埋設式地下タンクの建造方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to completely form a steel roof for an upper portion of an outer tank and to shorten a tank construction period. An object of the present invention is to provide a method for building a tank.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明は、地下に埋設され且つエアレイジングの圧力
に耐え得る有底筒体状のコンクリ−ト製外槽を一体的に
建造し、該外槽内底部にて複数の屋根骨を組み合わせて
構造体としその下側に鋼板を取り付けさらにその下側に
保冷材及びメンブレンを付設して上部開口部を覆う鋼製
の屋根を組み立て、組み立てられた屋根をエアレイジン
グにより上記開口部に移送させて外槽に組み付け、該屋
根の外側部に上記鋼板を型枠の一部としてコンクリ−ト
を打設してコンクリ−ト製外槽屋根を形成し、該外槽屋
根に覆土を施すようにしたものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method for burying underground and controlling the pressure of air lasing.
Bottomed cylindrical body shaped concrete that can withstand - the door made outer tub integrally <br/> construction, by combining a plurality of roof bone at outer tank bottom
A steel plate is attached to the lower side of the structure and
Assembling a steel roof covering the upper opening with a cold insulator and a membrane attached , transferring the assembled roof to the opening by air lasing and assembling it to the outer tank, and molding the steel plate on the outer part of the roof Concrete is cast as a part of the frame to form a concrete outer tank roof, and the outer tank roof is covered with soil.
【0006】[0006]
【作用】鋼製屋根の組み立ては外槽内底部にて行われる
ので、高所足場を用いた外槽上部における場合に比して
作業性良く組み立てられる。そして、組み立てられた屋
根を外槽開口部に移送して組み付けることにより、開口
部を覆う鋼製屋根がたちどころに形成される。Since the steel roof is assembled at the bottom of the outer tub, the workability is higher than that at the top of the outer tub using a scaffold. Then, by transferring the assembled roof to the outer tank opening and assembling it, a steel roof covering the opening is quickly formed.
【0007】[0007]
【実施例】次に、本発明の実施例について説明する。Next, an embodiment of the present invention will be described.
【0008】図1は本発明の一実施例を示す図であり、
ド−ム屋根を有する完全埋設式地下タンクの建造方法を
示している。FIG. 1 shows an embodiment of the present invention.
1 shows a method of building a fully buried underground tank with a dome roof.
【0009】タンク建造の際、先ず地面に穴を掘削し、
その内部に配筋を施すと共に型枠を設置してコンクリー
トを打設して、地下に有底筒体状のコンクリ−ト製外槽
1を一体的に建造する。その後、外槽1の内底部2にて
鋼製屋根4を組み立てる。鋼製屋根4は、複数の屋根骨
5を組み合わせてド−ム状の構造体とした後、その構造
体の下側に所定の大きさに分割された鋼板6を相互に接
合させて取り付けることにより組み立てられる。鋼製屋
根4の下部側壁には、保冷材7を介して、最終的にタン
ク内槽屋根を構成するメンブレン8を付設しておく。When constructing a tank , a hole is first drilled in the ground,
Reinforcement is provided inside and a formwork is installed and concrete
Preparative and Da設the underground bottomed cylindrical body shaped concrete - the door made outer tub 1 to build together. Thereafter, the steel roof 4 is assembled at the inner bottom 2 of the outer tub 1. The steel roof 4 is formed by combining a plurality of roof bones 5 to form a dome-shaped structure, and then joining the steel plates 6 divided into a predetermined size to the lower side of the structure by mutually joining them. Assembled by On the lower side wall of the steel roof 4, a membrane 8 which finally constitutes a tank roof is provided via a cold insulator 7.
【0010】組立てが終了した鋼製屋根4の周縁部にシ
−ル板9を取り付け、エア供給装置(図示せず)によっ
て鋼製屋根4の下側にエアレイジング用のエアを送り込
み、その圧力によって屋根4を押し上げて外槽1の上部
開口部3へ移送する。そして、移送された鋼製屋根4を
外槽1に組み付けて固定する。これにより、外槽1の上
部開口部3を覆って鋼製屋根4がたちどころに形成され
る。A seal plate 9 is attached to the periphery of the assembled steel roof 4 and air for air lasing is sent to the lower side of the steel roof 4 by an air supply device (not shown). Then, the roof 4 is pushed up and transferred to the upper opening 3 of the outer tank 1. Then, the transferred steel roof 4 is assembled and fixed to the outer tub 1. As a result, a steel roof 4 is formed immediately covering the upper opening 3 of the outer tub 1.
【0011】鋼製屋根4を外槽1に組み付けた後、鋼製
屋根4上に鋼板を型枠の一部としてコンクリ−トを打設
してコンクリ−ト製外槽屋根10を形成する。コンクリ
−トの打設は、エアレイジングの際に使用したエア供給
装置(図示せず)によって外槽1の内圧を高めた状態で
行う。これにより、コンクリ−トの重量による鋼製屋根
4の変形や破損を防止することができる。After assembling the steel roof 4 to the outer tub 1, a concrete is cast on the steel roof 4 with a steel plate as a part of a formwork to form a concrete outer tub roof 10. The concrete is cast in a state where the internal pressure of the outer tub 1 is increased by an air supply device (not shown) used at the time of air lasing. Thereby, deformation and breakage of the steel roof 4 due to the weight of the concrete can be prevented.
【0012】コンクリ−ト外槽屋根10を形成した後、
外槽内底部2および側部内壁13に対する保冷処理や内
槽形成作業を行う。鋼製屋根4の下部側壁には、すでに
保冷処理及び内槽屋根部を形成するメンブレン8の付設
処理を施してあるので、タンク天井部における繁雑な高
所作業を省くことができる。そして、保冷材層及び内槽
を形成した後、外槽屋根10に覆土11を施こして完全
埋設式地下タンクを完成させる。After forming the concrete outer tank roof 10,
A cold insulation process and an inner tank forming operation for the outer tank inner bottom 2 and the side inner wall 13 are performed. Since the lower side wall of the steel roof 4 has already been subjected to the cooling process and the process of attaching the membrane 8 forming the inner tank roof, complicated high-place work on the tank ceiling can be omitted. Then, after the cold insulator layer and the inner tank are formed, the cover 11 is applied to the outer tank roof 10 to complete the completely buried underground tank.
【0013】本発明は上記実施例の他、種々の形状のタ
ンクの建造に適用できる。例えば、図2に示すフラット
屋根構造12の完全埋設式地下タンクの建造も可能であ
る。この場合、鋼製屋根4はトラス構造とし、エアレイ
ジングによる浮上時及びコンクリ−ト打設時の圧力に耐
え得る構造にしておく必要がある。The present invention can be applied to construction of tanks of various shapes other than the above embodiment. For example, a completely buried underground tank having a flat roof structure 12 shown in FIG. 2 can be constructed. In this case, it is necessary that the steel roof 4 has a truss structure and a structure capable of withstanding the pressure at the time of floating by air lasing and at the time of placing concrete.
【0014】本実施例で説明したように、鋼製屋根4の
組み立てを外槽1の内底部2にて行い、その際、鋼製屋
根4の下部側壁に保冷処理及びメンブレン8の付設処理
を施しておくことにより、作業性を著しく向上させるこ
とができる。組み立てられた鋼製屋根4をエアレイジン
グにより外槽1の上部開口部3へ移送して組み付けるよ
うにしたので、タンク建設工期を大幅に短縮化すること
ができる。このとき、エアレイジングによりタンク内の
気圧は上昇するが、コンクリート製外槽1は、その周囲
の土圧によって支持され十分な強度を有している。ま
た、鋼製屋根4によって、エアレイジングによる浮上時
の気密性を保持できる。なお、鋼製屋根4の強度が充分
であれば、コンクリ−ト打設の際に外槽1内に圧力をか
けておく必要はない。エアを導入するための工事口の処
理等が難しいためである。As described in this embodiment, the steel roof 4 is assembled in the inner bottom portion 2 of the outer tub 1, and at this time, the cooling process and the attaching process of the membrane 8 are performed on the lower side wall of the steel roof 4. By doing so, workability can be significantly improved. Since the assembled steel roof 4 is transferred to the upper opening 3 of the outer tub 1 by air lasing and assembled, the tank construction period can be significantly reduced. At this time, air
The atmospheric pressure rises, but the concrete outer tank 1
And has sufficient strength. Ma
In addition, when ascending by air-raising with the steel roof 4
Airtightness can be maintained. If the strength of the steel roof 4 is sufficient, it is not necessary to apply pressure to the outer tub 1 during concrete casting. This is because it is difficult to treat the construction opening for introducing air.
【0015】[0015]
【発明の効果】以上要するに本発明によれば、鋼製屋根
の組み立てを外槽の内底部にて行い、組み立てられた鋼
製屋根をエアレイジングにより外槽の上部開口部へ移送
して組み付けるようにしたので、極めて作業性が良く、
タンク建設工期を大幅に短縮化することができる。In summary, according to the present invention, the steel roof is assembled at the inner bottom of the outer tub, and the assembled steel roof is transferred to the upper opening of the outer tub by air lasing and assembled. The workability is extremely good,
The tank construction period can be significantly reduced.
【図1】本発明の一実施例を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.
【図2】本発明の他の実施例を示す縦断面図である。FIG. 2 is a longitudinal sectional view showing another embodiment of the present invention.
【符号の説明】 1 外槽 2 外槽内底部 3 上部開口部 4 鋼製屋根 10 コンクリ−ト製外槽屋根[Description of Signs] 1 Outer tub 2 Outer tub inner bottom 3 Upper opening 4 Steel roof 10 Concrete outer tub roof
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古見 嘉夫 東京都江東区豊洲三丁目2番16号 石川 島播磨重工業株式会社 豊洲総合事務所 内 (72)発明者 石田 和雄 東京都江東区豊洲三丁目2番16号 石川 島播磨重工業株式会社 豊洲総合事務所 内 (56)参考文献 特開 昭63−92896(JP,A) 特開 平3−55365(JP,A) 特開 昭63−243600(JP,A) 特開 昭56−160492(JP,A) (58)調査した分野(Int.Cl.7,DB名) F17C 3/00 - 3/12 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshio Komi 3-2-16 Toyosu, Koto-ku, Tokyo Ishikawa-Shimaharima Heavy Industries, Ltd. Toyosu General Office (72) Inventor Kazuo Ishida Toyosu-san, Koto-ku, Tokyo No. 2-16 Ishikawa Shima-Harima Heavy Industries, Ltd. Toyosu Sogo Office (56) References JP-A-63-92896 (JP, A) JP-A-3-55365 (JP, A) JP-A 63-243600 ( JP, A) JP-A-56-160492 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F17C 3/00-3/12
Claims (1)
力に耐え得る有底筒体状のコンクリ−ト製外槽を一体的
に建造し、該外槽内底部にて複数の屋根骨を組み合わせ
て構造体としその下側に鋼板を取り付けさらにその下側
に保冷材及びメンブレンを付設して上部開口部を覆う鋼
製の屋根を組み立て、組み立てられた屋根をエアレイジ
ングにより上記開口部に移送させて外槽に組み付け、該
屋根の外側部に上記鋼板を型枠の一部としてコンクリ−
トを打設してコンクリ−ト製外槽屋根を形成し、該外槽
屋根に覆土を施すようにしたことを特徴とする完全埋設
式地下タンクの建造方法。1. The pressure of air-raising buried underground
An integrated outer tank made of concrete with a bottomed cylinder that can withstand force
And combine multiple roof bones at the bottom of the outer tank
And a steel plate is attached to the lower side of the structure.
Assembling a steel roof covering the upper opening by attaching a cold insulator and a membrane to the roof, transferring the assembled roof to the opening by air-raising and assembling the outer roof, and applying the steel sheet to the outer portion of the roof. Concrete as part of the formwork
A method of constructing a completely buried underground tank, wherein a concrete outer shell roof is formed by casting and the outer tank roof is covered with soil.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3077713A JP3000704B2 (en) | 1991-04-10 | 1991-04-10 | How to build a fully buried underground tank |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3077713A JP3000704B2 (en) | 1991-04-10 | 1991-04-10 | How to build a fully buried underground tank |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04312294A JPH04312294A (en) | 1992-11-04 |
JP3000704B2 true JP3000704B2 (en) | 2000-01-17 |
Family
ID=13641533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3077713A Expired - Lifetime JP3000704B2 (en) | 1991-04-10 | 1991-04-10 | How to build a fully buried underground tank |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3000704B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113104414B (en) | 2021-03-16 | 2021-10-01 | 山东京博控股集团有限公司 | Full earthing structure of vertical jar of body |
-
1991
- 1991-04-10 JP JP3077713A patent/JP3000704B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH04312294A (en) | 1992-11-04 |
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