JP2787840B2 - Underground integrated low temperature liquefied gas tank and its construction method - Google Patents

Underground integrated low temperature liquefied gas tank and its construction method

Info

Publication number
JP2787840B2
JP2787840B2 JP6065635A JP6563594A JP2787840B2 JP 2787840 B2 JP2787840 B2 JP 2787840B2 JP 6065635 A JP6065635 A JP 6065635A JP 6563594 A JP6563594 A JP 6563594A JP 2787840 B2 JP2787840 B2 JP 2787840B2
Authority
JP
Japan
Prior art keywords
wall
underground
metal
liquefied gas
temperature liquefied
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
JP6065635A
Other languages
Japanese (ja)
Other versions
JPH07247726A (en
Inventor
久夫 藤村
正道 安永
静男 内藤
慎治 中川
浩一郎 金井
秀利 鹿島
保孝 大沢
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.)
Kajima Corp
Mitsubishi Heavy Industries Ltd
Original Assignee
Kajima Corp
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 Kajima Corp, Mitsubishi Heavy Industries Ltd filed Critical Kajima Corp
Priority to JP6065635A priority Critical patent/JP2787840B2/en
Publication of JPH07247726A publication Critical patent/JPH07247726A/en
Application granted granted Critical
Publication of JP2787840B2 publication Critical patent/JP2787840B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

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

【0001】[0001]

【産業上の利用分野】本発明は、地下地上一体型低温液
化ガスタンクおよびその施工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 low-temperature liquefied gas tank integrated underground and above, and a method for constructing the tank.

【0002】[0002]

【従来の技術】従来、LNG等の低温液化ガスを貯蔵す
るタンクとして地下式および地上式のものがある。これ
らのタンクの屋根構造について言えば、地上式の場合は
鋼製、地下式の場合は鋼製またはコンクリート製となっ
ており、構造上ならびに経済性の観点からその直径は最
大でも70〜80m 程度が限度となっている。
2. Description of the Related Art Conventionally, tanks for storing low-temperature liquefied gas such as LNG are available underground and above ground. Speaking of the roof structure of these tanks, they are made of steel for the above-ground type and made of steel or concrete for the underground type, and their diameters are at most 70 to 80 m from the viewpoint of structure and economy. Is the limit.

【0003】[0003]

【発明が解決しようとする課題】ところで昨今、さらに
大容量の低温液化ガスを貯蔵できるタンクが要望されて
いる。しかしながら前述したようにタンクの屋根の直径
には限界があるので、タンクの容量を増大するためには
地上式の場合は高さを高く、地下式の場合は大深度にす
る必要があるが、施工の複雑化とコストの増大を招く。
In recent years, there has been a demand for a tank capable of storing a larger volume of low-temperature liquefied gas. However, as mentioned above, the diameter of the tank roof is limited, so in order to increase the capacity of the tank, it is necessary to increase the height in the case of the above-ground type, and to increase the depth in the case of the underground type, This leads to complicated construction and increased costs.

【0004】また、地上式の場合は敷地環境等の条件か
ら高さが制限される場合があり、また、地下式の場合は
止水のための止水壁あるいは土留のための土留壁の大深
度化による限界が生じ、現状では地上式タンクについて
は、液深が約33m で容量が14万KL、地下式タンクに
ついては、液深が約50m で容量が20万KLまでのもの
が最大となっている。
In the case of the above-ground type, the height may be limited due to the conditions of the site environment and the like, and in the case of the underground type, the size of a water stop wall for retaining water or a retaining wall for retaining soil is large. There is a limit due to the increase in depth. At present, the maximum for tanks with a liquid depth of about 33 m and a capacity of 140,000 KL, and those for underground tanks with a liquid depth of about 50 m and a capacity of 200,000 KL is currently the largest. Has become.

【0005】本発明は、このような問題に鑑みてなされ
たもので、その目的とするところは、大容量の低温液化
ガスの貯蔵を行うことができる地下地上一体型低温液化
ガスタンクおよびその施工方法を提供することにある。
The present invention has been made in view of the above problems, and an object of the present invention is to provide an underground integrated low-temperature liquefied gas tank capable of storing a large volume of low-temperature liquefied gas and a method of constructing the tank. Is to provide.

【0006】[0006]

【課題を解決するための手段】 前述した目的を達成す
るために第1の発明は、地下部には、底版と側壁とを設
けるとともに、前記底版と前記側壁の内側に断熱材とメ
ンブレンとを設け、地上部には、前記側壁上にコンクリ
ート壁を設け、前記コンクリート壁の内側に、二重の金
属からなる金属壁を設け、前記金属壁に屋根を設置し、
地上部にも地下部と同程度の貯蔵を行えることを特徴と
する地下地上一体型低温液化ガスタンクである。
Means for Solving the Problems In order to achieve the above object, a first invention provides a base plate and a side wall in an underground part, and a heat insulating material and a membrane inside the bottom plate and the side wall. Provided, on the ground portion, a concrete wall is provided on the side wall, a metal wall made of a double metal is provided inside the concrete wall, and a roof is provided on the metal wall,
This is a low-temperature liquefied gas tank integrated underground, characterized in that it can be stored in the same level as the underground part.

【0007】 また第2の発明は、地中に土留壁又は止
水壁を設ける工程と、前記土留壁又は止水壁内部を所定
の深さまで掘削する工程と、前記掘削された部分に底版
および側壁を設ける工程と、前記底版と側壁内に断熱材
とメンブレンとを設ける工程と、前記側壁の上部にコン
クリート壁を設ける工程と、前記側壁の上部で、前記コ
ンクリート壁の内側に二重の金属からなる金属壁を設け
る工程と、前記二重の金属壁に二重の金属からなる屋根
を設置する工程と、を具備し、地上部にも地下部と同程
度の貯蔵を行える地下地上一体型低温液化ガスタンクの
施工方法である。
A second invention provides a step of providing a retaining wall or a water blocking wall in the ground, a step of excavating the inside of the retaining wall or the water blocking wall to a predetermined depth, and providing a bottom plate and a bottom plate in the excavated portion. A step of providing a side wall, a step of providing a heat insulating material and a membrane in the bottom plate and the side wall, a step of providing a concrete wall on top of the side wall, and a double metal inside the concrete wall at the top of the side wall. A step of providing a metal wall consisting of: and a step of installing a roof made of a double metal on the double metal wall, and an underground integrated type capable of storing the same level as the underground part in the above ground part This is a construction method for a low-temperature liquefied gas tank.

【0008】[0008]

【作用】本発明では、地下部と地上部において低温液化
ガスを貯蔵することによって大容量の低温液化ガスを貯
蔵することができる。
According to the present invention, a large volume of low-temperature liquefied gas can be stored by storing the low-temperature liquefied gas in the underground part and the above-ground part.

【0009】[0009]

【実施例】以下、図面に基づいて本発明の実施例を詳細
に説明する。図1は、本発明の1実施例に係る地下地上
一体型低温液化ガスタンクの概要を示す断面図、図2は
図1のA部の拡大図である。図1、図2において1は地
表、3は不透水層である。5は不透水層に到達するよう
に円筒状に設けられた地中連続壁、7は鉄筋コンクリー
ト製の底版、9は鉄筋コンクリート製のほぼ円筒状の側
壁、11は側壁9の上部に設けられた円筒状のプレスト
レストコンクリート壁(PC壁)、13は屋根であり、
この屋根13は内槽金属屋根15と外槽金属屋根17と
の間に断熱材19が設けられたPC外槽金属二重殻構造
となっている。なお断熱材19はPC壁11と内槽金属
15aの間にも設置する。21は底版7および側壁9の
内面に設けられた断熱材、22は断熱材21の内側に設
けられるメンブレン、23は貯蔵されるLNG(液化天
然ガス)である。
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view showing an outline of a low-temperature liquefied gas tank integrated with an underground ground according to one embodiment of the present invention, and FIG. 2 is an enlarged view of a portion A in FIG. 1 and 2, 1 is the ground surface, and 3 is an impermeable layer. 5 is an underground continuous wall provided in a cylindrical shape so as to reach the impermeable layer, 7 is a slab made of reinforced concrete, 9 is a substantially cylindrical side wall made of reinforced concrete, and 11 is a cylinder provided on the upper part of the side wall 9 Shaped prestressed concrete wall (PC wall), 13 is a roof,
The roof 13 has a PC outer tank metal double shell structure in which a heat insulating material 19 is provided between the inner tank metal roof 15 and the outer tank metal roof 17. The heat insulating material 19 is also provided between the PC wall 11 and the inner tank metal 15a. Reference numeral 21 denotes a heat insulating material provided on the inner surface of the bottom plate 7 and the side wall 9, reference numeral 22 denotes a membrane provided inside the heat insulating material 21, and reference numeral 23 denotes LNG (liquefied natural gas) to be stored.

【0010】つぎに、この地下地上一体型低温液化ガス
タンクの施工方法を図3から図8に従って説明する。
Next, a method of constructing the low-temperature liquefied gas tank integrated with the underground ground will be described with reference to FIGS.

【0011】まず、図3に示すように地盤内に円筒状に
地中連続壁5を不透水層3に到達するように設ける。つ
ぎに、地中連続壁5を止水壁及びに土留壁として地中連
続壁5の内部を所定深さまで掘削する(図4)。つぎ
に、掘削された部分に鉄筋コンクリート製の底版7およ
び側壁9を構築する(図5)。つぎに、側壁9の上部に
PC壁11を円筒状に構築するとともに内槽金属15a
を設ける(図6)。
First, as shown in FIG. 3, an underground continuous wall 5 is provided in the ground in a cylindrical shape so as to reach the impermeable layer 3. Next, the inside of the underground continuous wall 5 is excavated to a predetermined depth using the underground continuous wall 5 as a water stop wall and a soil retaining wall (FIG. 4). Next, a slab 7 and a side wall 9 made of reinforced concrete are constructed in the excavated portion (FIG. 5). Next, the PC wall 11 is constructed in a cylindrical shape on the upper part of the side wall 9 and the inner tank metal 15 a
Is provided (FIG. 6).

【0012】 つぎに、側壁9の上部においてPC壁1
1と内槽金属15aの間にシールメタル31を設け、P
C壁11の内側に内槽金属15aとシールメタル31と
からなる二重の金属からなる金属壁を設ける。また、底
版7の上部において屋根13を構築する。屋根13は、
内槽金属屋根15と外槽金属屋根17の間に断熱材19
を設けた構造となっている(図7)。なお断熱材19は
PC壁11と内槽金属15aの間にも設置する。
Next, the PC wall 1 is located above the side wall 9.
1 and the inner metal 15a are provided with a seal metal 31;
A metal wall made of a double metal consisting of the inner tank metal 15 a and the seal metal 31 is provided inside the C wall 11. Further, a roof 13 is constructed above the bottom slab 7. The roof 13
Insulation material 19 between the inner tank metal roof 15 and the outer tank metal roof 17
(FIG. 7). The heat insulating material 19 is also provided between the PC wall 11 and the inner tank metal 15a.

【0013】つぎに、屋根13を吊り上げ、内槽金属1
5aと内槽金属屋根15とを溶接し、シールメタル31
と外槽金属屋根17とを溶接することによって屋根13
をタンクの上部に設ける。また、底版7および側壁9の
内面に断熱材21、更に断熱材21の内側にメンブレン
22を設ける。そして、LNG23を貯蔵する(図
8)。 このように本実施例では、地下部と地上部にL
NG等を貯蔵できるので、従来に比べて倍近い容量の低
温液化ガスを貯蔵することができる。具体的に言えば、
タンクの内径を約72m 、液深を約82m とすることが
でき、この結果約34万m3 の低温液化ガスを貯蔵する
ことができる。
Next, the roof 13 is lifted, and the inner tank metal 1 is lifted.
5a and the inner tank metal roof 15 are welded to form a seal metal 31.
The roof 13 is welded to the outer tank metal roof 17 by welding.
At the top of the tank. Further, a heat insulating material 21 is provided on the inner surfaces of the bottom plate 7 and the side wall 9, and a membrane 22 is provided inside the heat insulating material 21. Then, the LNG 23 is stored (FIG. 8). As described above, in the present embodiment, the L
Since NG or the like can be stored, it is possible to store a low-temperature liquefied gas having a capacity almost twice as large as that of the conventional case. Specifically,
The inside diameter of the tank can be about 72 m and the liquid depth can be about 82 m, so that about 340,000 m 3 of low temperature liquefied gas can be stored.

【0014】したがって、単独の地上タンクあるいは地
下タンクに比べ、同じ位置において容量の増加を確保で
きるので用地の単位面積あたりの貯蔵容量を格段に増加
させることができる。このため、全体として用地の有効
活用を図ることができ、小敷地で大容量のタンクを構築
することができる。また、同容量を貯蔵する場合、従来
の地下タンクのみ、もしくは地上タンクのみに比べ、コ
スト、工期を短縮することができる。
Therefore, as compared with a single above-ground tank or underground tank, an increase in capacity can be ensured at the same position, so that the storage capacity per unit area of land can be significantly increased. Therefore, the land can be effectively utilized as a whole, and a large-capacity tank can be constructed on a small site. Further, when storing the same capacity, the cost and the construction period can be shortened as compared with the conventional underground tank only or the above-mentioned tank alone.

【0015】[0015]

【発明の効果】以上、詳細に説明したように本発明によ
れば、大容量の低温液化ガスの貯蔵することができる。
As described above, according to the present invention, a large amount of low-temperature liquefied gas can be stored.

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

【図1】 地下地上一体型低温液化ガスタンクの概要を
示す断面図
FIG. 1 is a cross-sectional view showing an outline of a low-temperature liquefied gas tank integrated with an underground surface

【図2】 図1のA部の拡大図FIG. 2 is an enlarged view of a portion A in FIG. 1;

【図3】 地下地上一体型低温液化ガスタンクの施工方
法の説明図
FIG. 3 is an explanatory view of a construction method of an integrated low-temperature liquefied gas tank underground.

【図4】 地下地上一体型低温液化ガスタンクの施工方
法の説明図
FIG. 4 is an explanatory view of a construction method of an underground integrated low-temperature liquefied gas tank

【図5】 地下地上一体型低温液化ガスタンクの施工方
法の説明図
FIG. 5 is an explanatory view of a construction method of an integrated low-temperature liquefied gas tank underground

【図6】 地下地上一体型低温液化ガスタンクの施工方
法の説明図
FIG. 6 is an explanatory view of a construction method of a low-temperature liquefied gas tank integrated with an underground base

【図7】 地下地上一体型低温液化ガスタンクの施工方
法の説明図
FIG. 7 is an explanatory diagram of a construction method of an integrated low-temperature liquefied gas tank underground.

【図8】 地下地上一体型低温液化ガスタンクの施工方
法の説明図
FIG. 8 is an explanatory diagram of a construction method of a low-temperature liquefied gas tank integrated with an underground base.

【符号の説明】[Explanation of symbols]

1………地表 3………不透水層 5………連続地中壁 7………底版コンクリ−ト 9………側壁コンクリ−ト 11………PC壁 13………屋根 15………内槽金属屋根 17………外槽金属屋根 19………地上タンク用断熱材 21………地下タンク用断熱材 22………メンブレン 23………LNG 1 ... ground surface 3 ... impervious layer 5 ... continuous underground wall 7 ... bottom slab concrete 9 ... side wall concrete 11 ... PC wall 13 ... roof 15 ... … Inner tank metal roof 17 …… Outer tank metal roof 19 …… Insulation material for above-ground tanks 21 …… Insulation material for underground tanks 22 …… Membranes 23 …… LNG

───────────────────────────────────────────────────── フロントページの続き (72)発明者 内藤 静男 東京都港区元赤坂一丁目2番7号 鹿島 建設株式会社内 (72)発明者 中川 慎治 東京都港区元赤坂一丁目2番7号 鹿島 建設株式会社内 (72)発明者 金井 浩一郎 東京都港区元赤坂一丁目2番7号 鹿島 建設株式会社内 (72)発明者 鹿島 秀利 神奈川県横浜市中区錦町12番地 三菱重 工業株式会社横浜製作所 内 (72)発明者 大沢 保孝 神奈川県横浜市中区錦町12番地 三菱重 工業株式会社横浜製作所 内 (58)調査した分野(Int.Cl.6,DB名) E04H 7/02 - 7/18 E02D 29/045 - 29/05 E21D 13/00 - 13/02 F17C 3/00 - 3/06──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shizuo Naito 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Shinji Nakagawa 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Koichiro Kanai 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Yokohama Works (72) Inventor Yasutaka Osawa 12 Nishiki-cho, Naka-ku, Yokohama-shi, Kanagawa Prefecture Mitsubishi Heavy Industries, Ltd. Yokohama Works (58) Field surveyed (Int.Cl. 6 , DB name) E04H 7/02-7 / 18 E02D 29/045-29/05 E21D 13/00-13/02 F17C 3/00-3/06

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 地下部には、底版と側壁とを設けるとと
もに、前記底版と前記側壁の内側に断熱材とメンブレン
とを設け、 地上部には、前記側壁上にコンクリート壁を設け、前記
コンクリート壁の内側に、二重の金属からなる金属壁を
設け、前記金属壁に屋根を設置し、地上部にも地下部と
同程度の貯蔵を行えることを特徴とする地下地上一体型
低温液化ガスタンク。
A bottom plate and a side wall are provided in an underground portion; a heat insulating material and a membrane are provided inside the bottom plate and the side wall; a concrete wall is provided on the side wall in a ground portion; Inside the wall, a metal wall made of double metal
The roof is installed on the metal wall,
A low-temperature liquefied gas tank integrated underground with the same storage capacity .
【請求項2】 地中に土留壁又は止水壁を設ける工程
と、 前記土留壁又は止水壁内部を所定の深さまで掘削する工
程と、 前記掘削された部分に底版および側壁を設ける工程と、 前記底版と側壁内に断熱材とメンブレンとを設ける工程
と、 前記側壁の上部にコンクリート壁を設ける工程と、 前記側壁の上部で、前記コンクリート壁の内側に二重の
金属からなる金属壁を設ける工程と、 前記二重の金属壁に二重の金属からなる屋根を設置する
工程と、 を具備し、地上部にも地下部と同程度の貯蔵を行える
下地上一体型低温液化ガスタンクの施工方法。
2. A step of providing a retaining wall or a water blocking wall in the ground, a step of excavating the inside of the retaining wall or the water blocking wall to a predetermined depth, and a step of providing a bottom plate and a side wall in the excavated portion. A step of providing a heat insulating material and a membrane in the bottom plate and the side wall; a step of providing a concrete wall on the upper part of the side wall;
Land that allows the step of providing a metal wall made of metal, and a step of installing a roof made of a double metal to said double metal wall, comprising a storage comparable to the underground to aboveground <br Construction method of low temperature liquefied gas tank integrated on substrate.
JP6065635A 1994-03-09 1994-03-09 Underground integrated low temperature liquefied gas tank and its construction method Expired - Lifetime JP2787840B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6065635A JP2787840B2 (en) 1994-03-09 1994-03-09 Underground integrated low temperature liquefied gas tank and its construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6065635A JP2787840B2 (en) 1994-03-09 1994-03-09 Underground integrated low temperature liquefied gas tank and its construction method

Publications (2)

Publication Number Publication Date
JPH07247726A JPH07247726A (en) 1995-09-26
JP2787840B2 true JP2787840B2 (en) 1998-08-20

Family

ID=13292688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6065635A Expired - Lifetime JP2787840B2 (en) 1994-03-09 1994-03-09 Underground integrated low temperature liquefied gas tank and its construction method

Country Status (1)

Country Link
JP (1) JP2787840B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105926675B (en) * 2016-06-21 2018-01-02 柏涛国际工程设计顾问(深圳)有限公司 Closed the lid lower integral mixed structure for metro depot

Also Published As

Publication number Publication date
JPH07247726A (en) 1995-09-26

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