JP2000212978A - Underground tank and construction method of underground tank - Google Patents

Underground tank and construction method of underground tank

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Publication number
JP2000212978A
JP2000212978A JP11017255A JP1725599A JP2000212978A JP 2000212978 A JP2000212978 A JP 2000212978A JP 11017255 A JP11017255 A JP 11017255A JP 1725599 A JP1725599 A JP 1725599A JP 2000212978 A JP2000212978 A JP 2000212978A
Authority
JP
Japan
Prior art keywords
roof
underground tank
side wall
underground
wall
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
JP11017255A
Other languages
Japanese (ja)
Inventor
Atsuhiro Fukada
敦宏 深田
Masatsugu Yamamoto
正嗣 山本
Hitoshi Takeuchi
等 武内
Tomoyuki Ogawa
知之 小河
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
Original Assignee
Kajima 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 Kajima Corp filed Critical Kajima Corp
Priority to JP11017255A priority Critical patent/JP2000212978A/en
Publication of JP2000212978A publication Critical patent/JP2000212978A/en
Pending legal-status Critical Current

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  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

PROBLEM TO BE SOLVED: To cancel thrust force, prevent the occurrence of cracks, deformation or the like, and hence facilitate the execution of an underground tank by pin- combining the side wall and roof of an underground tank having a bottom plate, side walls, and a roof. SOLUTION: An underground tank 1 is formed by providing a bottom plate 7, a side wall 9, and a roof in the interior of a continuous underground wall 5, and LNG or the like is stored herein. The reinforced concrete roof is pin- combined with a side wall by a shift prevention 23 having steel materials such as reinforcing bars or steel plates arranged therein. By pin-combining the side wall 9 and roof 11, the structure of an underground tank 1 per se is made simple, thus performing execution readily, and shortening the construction period of time.

Description

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

【０００１】[0001]

【発明の属する技術分野】本発明は、地下タンク及び地
下タンクの構築方法に関する。The present invention relates to an underground tank and a method for constructing an underground tank.

【０００２】[0002]

【従来の技術】従来、ＬＮＧ等の貯蔵には、図５に示す
ような地下タンクが一般的に使用されてきた。図５の地
下タンク１０１は、連続地中壁１０７の内部に底版１０
９及び側壁１１１が設けられ、側壁１１１の上部に屋根
１１３が設けられ、屋根１１３の上部を覆土１０５で覆
う。屋根１１３は、アーチ状であるので、水平スラスト
力１２１が生じる。2. Description of the Related Art Conventionally, an underground tank as shown in FIG. 5 has been generally used for storing LNG and the like. The underground tank 101 shown in FIG.
9 and a side wall 111 are provided, a roof 113 is provided on an upper portion of the side wall 111, and an upper portion of the roof 113 is covered with a cover soil 105. Since the roof 113 has an arch shape, a horizontal thrust force 121 is generated.

【０００３】図６に屋根のアーチ１３１を示すが、景観
やコンクリートの打設性からライズスパン比（Ｈ／Ｌ）
を小さくすることがしばしば求められ、水平スラスト力
１２１はより大きくなる。水平スラスト力１２１は、屋
根自重、覆土重量等１１９により生じ、この水平スラス
ト力１２１により側壁１１１や連続地中壁１０７の円周
方向に引張力が生じたり、変形等が生ずる等の悪影響を
及ぼす。そこで、側壁１１１頂部にＰＣ鋼材１１５を設
置し、水平スラスト力を打ち消している。尚、図５にお
いて、１１７はＬＮＧ、１０３は元地表面である。この
時、覆土は景観や断熱性向上に行われるものであり、無
くても良い。FIG. 6 shows an arch 131 of a roof.
Is often required, and the horizontal thrust force 121 becomes larger. The horizontal thrust force 121 is generated due to the roof's own weight, soil covering weight, etc. 119, and the horizontal thrust force 121 has an adverse effect such as a tensile force or deformation in the circumferential direction of the side wall 111 or the continuous underground wall 107. . Therefore, a PC steel material 115 is provided on the top of the side wall 111 to cancel the horizontal thrust force. In FIG. 5, 117 is LNG, and 103 is the original ground surface. At this time, the covering is performed for the purpose of improving the landscape and the heat insulating property, and may be omitted.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うな構造では側壁１１１頂部のプレストレスを屋根１１
３に伝達させるため、剛結構造とする金物や施工の手間
が必要であった。また、側壁１１１に力がかかるため、
薄肉の側壁１１１では対応できなかった。However, in such a structure, the prestress at the top of the side wall 111 is reduced.
In order to transmit the data to No.3, it was necessary to use a hardware having a rigid structure and labor for construction. Also, since a force is applied to the side wall 111,
The thin side wall 111 could not cope.

【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、スラスト力を打ち
消し、ひび割れ・変形等がおこらず、施工が容易な地下
タンク及び地下タンクの構築方法を提供することにあ
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to construct an underground tank and an underground tank which cancel thrust force, do not crack, deform, etc., and are easy to construct. It is to provide a method.

【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
ために本発明の第１の発明は、底版と側壁と屋根とを有
する地下タンクにおいて、前記側壁と前記屋根とをピン
結合することを特徴とする地下タンクである。According to a first aspect of the present invention, there is provided an underground tank having a bottom plate, a side wall and a roof, wherein the side wall and the roof are pin-connected. It is a characteristic underground tank.

【０００７】また、第２の発明は、連続地中壁の内側に
底版を設け、前記連続地中壁の上部に屋根を設ける地下
タンクにおいて、前記連続地中壁と前記屋根とをピン結
合することを特徴とする地下タンクである。According to a second aspect of the present invention, there is provided an underground tank in which a bottom plate is provided inside a continuous ground wall and a roof is provided above the continuous ground wall, and the continuous ground wall and the roof are pin-connected. An underground tank characterized by the following.

【０００８】また、第３の発明は、地盤内を所定の深さ
まで掘削する工程と、前記掘削された部分に、底版及び
側壁を設ける工程と、前記側壁の上部にピン結合で屋根
を設ける工程と、を具備することを特徴とする地下タン
クの構築方法である。[0008] In a third aspect of the present invention, a step of excavating the ground to a predetermined depth, a step of providing a bottom plate and a side wall in the excavated portion, and a step of providing a roof by pin connection on an upper portion of the side wall. And a method for constructing an underground tank.

【０００９】また、第４の発明は、地盤中に、連続地中
壁を構築する工程と、前記連続地中壁の内部を所定の深
さまで掘削する工程と、前記掘削された部分に、底版を
設ける工程と、前記連続地中壁の上部にピン結合で屋根
を設ける工程と、を具備することを特徴とする地下タン
クの構築方法。A fourth invention provides a step of constructing a continuous underground wall in the ground, a step of excavating the inside of the continuous underground wall to a predetermined depth, and adding a bottom plate to the excavated portion. And a step of providing a roof by pin bonding on the upper part of the continuous underground wall.

【００１０】[0010]

【発明の実施の形態】以下、図面に基づいて本発明の実
施の形態を詳細に説明する。図１は第１の実施の形態に
係る地下タンク１を示す図である。地下タンク１では、
連続地中壁５の内部に底版７及び側壁９を設け、屋根１
１が設けられる。屋根１１は鉄筋コンクリート製であ
り、円周方向にＰＣ鋼材１９が設けられる。地下タンク
１の内面に保冷材１３が設けられ、更に保冷材１３の内
側にメンブレン１５が設けられ、この内部にＬＮＧ等１
７が貯蔵される。屋根１１と側壁９はずれ止め２３でピ
ン結合されている。ずれ止め２３は、鉄筋や鋼板等の鋼
材を並べたものである。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing an underground tank 1 according to the first embodiment. In the underground tank 1,
The bottom plate 7 and the side wall 9 are provided inside the continuous underground wall 5, and the roof 1
1 is provided. The roof 11 is made of reinforced concrete, and a PC steel 19 is provided in the circumferential direction. A cold insulator 13 is provided on the inner surface of the underground tank 1, and a membrane 15 is further provided inside the cold insulator 13.
7 is stored. The roof 11 and the side wall 9 are pin-coupled by a stopper 23. The slip stopper 23 is formed by arranging steel materials such as a reinforcing steel bar and a steel plate.

【００１１】図２は、図１におけるＡ−Ａ矢視図であ
り、図３は図２におけるＢ−Ｂ断面図であり、ＰＣ鋼材
１９の設置の説明図である。屋根１１には突出部２４
が、円周方向に複数設けられ、ＰＣ鋼材１９の端部はア
ンカー２５により、突出部２４に定着される。FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB in FIG. The protruding part 24 is provided on the roof 11.
Are provided in the circumferential direction, and the end of the PC steel material 19 is fixed to the protruding portion 24 by the anchor 25.

【００１２】地下タンク１の構築は、まず、地盤内に円
筒状に連続地中壁５を構築し、連続地中壁５の内部を掘
削機を用いて掘削する。次に、掘削された部分に底版７
及び側壁９を設ける。側壁９に対して屋根１１を設置す
る。この際、屋根１１と側壁９は、ずれ止め２３によっ
てピン結合となるように側壁９に屋根１１を設ける。屋
根１１の円周方向にＰＣ鋼材１９を設け、底版７及び側
壁９の内側に保冷材１３を設け、保冷材１３の内側にメ
ンブレン１５を設け、屋根１１の上は覆土２１で覆う。
地下タンク１完成後、内部にＬＮＧ等１７を貯蔵する。The underground tank 1 is constructed by first constructing a continuous underground wall 5 in a cylindrical shape in the ground, and excavating the interior of the continuous underground wall 5 using an excavator. Next, the bottom plate 7
And a side wall 9. The roof 11 is installed on the side wall 9. At this time, the roof 11 is provided on the side wall 9 so that the roof 11 and the side wall 9 are pin-coupled by the stopper 23. A PC steel material 19 is provided in the circumferential direction of the roof 11, a cooling material 13 is provided inside the bottom plate 7 and the side wall 9, a membrane 15 is provided inside the cooling material 13, and the roof 11 is covered with a cover 21.
After the underground tank 1 is completed, 17 such as LNG is stored inside.

【００１３】このように本実施の形態によれば、側壁９
と屋根１１とがピン結合されるので、地下タンク１自体
が簡易な構造となり、施工も容易であり、工期の短縮、
工費の低減を図ることができる。As described above, according to the present embodiment, the side wall 9 is formed.
The underground tank 1 itself has a simple structure because the roof 11 is connected to the roof 11 with pins.
Work costs can be reduced.

【００１４】図２は第２の実施の形態に係る地下タンク
４１を示す図である。地下タンク４１は、連続地中壁４
５を側壁として利用したものである。連続地中壁４５の
下部内側に底版４７が設けられ、連続地中壁４５の上部
に屋根５１が設けられる。屋根５１は鉄筋コンクリート
製であり、円周方向にＰＣ鋼材１９が設けられる。連続
地中壁４５と屋根５１とはずれ止め６３でピン結合され
ている。ずれ止め６３は、鉄筋や鋼板等の鋼材を並べた
ものである。FIG. 2 is a diagram showing an underground tank 41 according to a second embodiment. The underground tank 41 has a continuous underground wall 4
5 is used as a side wall. A bottom plate 47 is provided inside the lower part of the continuous underground wall 45, and a roof 51 is provided above the continuous underground wall 45. The roof 51 is made of reinforced concrete, and the PC steel 19 is provided in the circumferential direction. The continuous underground wall 45 and the roof 51 are pin-connected by a stopper 63. The slip stopper 63 is formed by arranging steel materials such as a reinforcing steel bar and a steel plate.

【００１５】地下タンク４１の構築は次の通りである。
まず、地盤内に円筒状に連続地中壁４５を構築し、連続
地中壁４５の内部を掘削機を用いて所定の深さまで掘削
する。掘削された部分の底部に底版４７を設ける。連続
地中壁４５に対して屋根５１を設置する。この際、連続
地中壁４５の上部と屋根５１とをずれ止め６３でピン結
合させる。そして屋根５１の円周方向にＰＣ鋼材５９を
設け、底版４７及び連続地中壁４５の内側に保冷材５３
およびメンブレン５５を設ける。The construction of the underground tank 41 is as follows.
First, a continuous underground wall 45 is constructed cylindrically in the ground, and the inside of the continuous underground wall 45 is excavated to a predetermined depth using an excavator. A bottom plate 47 is provided at the bottom of the excavated portion. The roof 51 is installed on the continuous underground wall 45. At this time, the upper part of the continuous underground wall 45 and the roof 51 are pin-coupled by the stopper 63. Then, a PC steel material 59 is provided in the circumferential direction of the roof 51, and a cold insulator 53 is provided inside the bottom plate 47 and the continuous underground wall 45.
And a membrane 55.

【００１６】このように本実施の形態によれば、連続地
中壁４５を側壁として利用し、連続地中壁４５と屋根５
１とがピン結合されるので、地下タンク４１自体が簡易
な構造となり、施工も容易であり、工期の短縮、工費の
低減を図ることができる。尚、図１、図５に示す実施の
形態では、連続地中壁を省略した構造とすることもでき
る。As described above, according to the present embodiment, the continuous underground wall 45 is used as the side wall, and the continuous underground wall 45 and the roof 5 are used.
1 is pin-connected, the underground tank 41 itself has a simple structure, construction is easy, and the construction period can be shortened and the construction cost can be reduced. In the embodiment shown in FIGS. 1 and 5, the continuous underground wall may be omitted.

【００１７】[0017]

【発明の効果】以上、詳細に説明したように本発明によ
れば、屋根と側壁又は連続地中壁との結合が簡易である
ので施工に手間がかからない。また、側壁は薄くてもよ
く、省略も可能である。As described in detail above, according to the present invention, since the connection between the roof and the side wall or the continuous underground wall is simple, there is no trouble in the construction. Further, the side wall may be thin and may be omitted.

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

【図１】第１の実施の形態に係る地下タンクを示す図FIG. 1 is a diagram showing an underground tank according to a first embodiment.

【図２】図１におけるＡ−Ａ矢視図FIG. 2 is a view taken in the direction of arrows AA in FIG. 1;

【図３】図２におけるＢ−Ｂ断面図FIG. 3 is a sectional view taken along line BB in FIG. 2;

【図４】第３の実施の形態に係る地下タンクを示す図FIG. 4 is a diagram showing an underground tank according to a third embodiment.

【図５】従来の地下タンクを示す図FIG. 5 shows a conventional underground tank.

【図６】地下タンクの屋根を示す図FIG. 6 is a view showing a roof of an underground tank;

【符号の説明】[Explanation of symbols]

１、４１………地下タンク ３、４３………元地表面 ５、４５………連続地中壁 ７、４７………底版 ９………側壁 １１、５１………屋根 １３、５３………保冷材 １５、５５………メンブレン １７、５７………ＬＮＧ等 １９、５９………ＰＣ鋼材 ２１、６１………覆土 ２３、６３………ズレ止め ２４………突出部 ２５………アンカー 1, 41 ... Underground tank 3, 43 ... Original ground surface 5, 45 ... Continuous underground wall 7, 47 ... Bottom plate 9 ... Side wall 11, 51 ... Roof 13, 53 ... ... Cooling material 15,55 ... Membrane 17,57 ... LNG etc.19,59 ... PC steel 21,61 ... Soil 23,63 ... Slip prevention 24 ... Protrusion 25 ... ……anchor

───────────────────────────────────────────────────── フロントページの続き (72)発明者 武内 等 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 小河 知之 東京都港区元赤坂一丁目３番８号 鹿島建 設株式会社東京支店内 Ｆターム(参考） 2D047 AB02  ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeuchi, etc. 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Tomoyuki Ogawa 1-3-8 Moto-Akasaka, Minato-ku, Tokyo No. Kashima Construction Co., Ltd. Tokyo branch F term (reference) 2D047 AB02

Claims (6)

【特許請求の範囲】[Claims] 【請求項１】 底版と側壁と屋根とを有する地下タンク
において、 前記側壁と前記屋根とをピン結合することを特徴とする
地下タンク。1. An underground tank having a bottom plate, a side wall, and a roof, wherein the side wall and the roof are pin-connected. 【請求項２】 前記屋根は鉄筋コンクリート製であり、
円周方向にＰＣ鋼材を設けることを特徴とする請求項１
記載の地下タンク。2. The roof is made of reinforced concrete,
2. A PC steel material is provided in a circumferential direction.
Underground tank as described. 【請求項３】 連続地中壁の内側に底版を設け、前記連
続地中壁の上部に屋根を設ける地下タンクにおいて、 前記連続地中壁と前記屋根とをピン結合することを特徴
とする地下タンク。3. An underground tank in which a bottom plate is provided inside a continuous ground wall and a roof is provided above the continuous ground wall, wherein the continuous ground wall and the roof are pin-connected. tank. 【請求項４】 前記屋根は鉄筋コンクリート製であり、
円周方向にＰＣ鋼材を設けることを特徴とする請求項３
記載の地下タンク。4. The roof is made of reinforced concrete,
4. A PC steel material is provided in a circumferential direction.
Underground tank as described. 【請求項５】 地盤内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、底版及び側壁を設ける工程と、 前記側壁の上部に屋根をピン結合で設ける工程と、 を具備することを特徴とする地下タンクの構築方法。5. A step of excavating the ground to a predetermined depth, a step of providing a bottom slab and a side wall in the excavated portion, and a step of providing a roof on the upper part of the side wall by pin connection. A method for constructing an underground tank. 【請求項６】 地盤中に、連続地中壁を構築する工程
と、 前記連続地中壁の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、底版を設ける工程と、 前記連続地中壁の上部に屋根をピン結合で設ける工程
と、 を具備することを特徴とする地下タンクの構築方法。6. A step of constructing a continuous underground wall in the ground; a step of excavating the inside of the continuous underground wall to a predetermined depth; a step of providing a bottom plate in the excavated portion; Providing a roof on the continuous underground wall with a pin connection; and a method for constructing an underground tank.
JP11017255A 1999-01-26 1999-01-26 Underground tank and construction method of underground tank Pending JP2000212978A (en)

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CN108374435A (en) * 2018-05-08 2018-08-07 杭州伟业建设集团有限公司 Underground pipe gallery construction method with rainwater cabin and combustion gas cabin
CN110629801A (en) * 2019-07-26 2019-12-31 中国一冶集团有限公司 Construction method using vertical mold as base surface of pre-paved anti-sticking self-adhesive waterproof roll
CN112177667A (en) * 2020-09-26 2021-01-05 深圳市隆金达实业有限公司 Underground protection wall for municipal works

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102900100A (en) * 2012-10-26 2013-01-30 杭州岩土工程有限公司 Method for building underground room under old building by using pipe sheds
CN102900100B (en) * 2012-10-26 2014-10-22 岩土科技股份有限公司 Method for building underground room under old building by using pipe sheds
CN106088148A (en) * 2016-08-04 2016-11-09 中国华冶科工集团有限公司 Pipe gallery template and application thereof
CN106522266A (en) * 2016-11-11 2017-03-22 山东省呈祥电工电气有限公司 Light high-strength anti-seepage anti-seismic pipe gallery and construction method
CN107035965A (en) * 2017-03-31 2017-08-11 武汉冶钢结构有限责任公司 Earthing formula storage tank sand bed structure and its construction method
CN107035965B (en) * 2017-03-31 2019-10-25 武汉一冶钢结构有限责任公司 Earthing formula storage tank sand bed structure and its construction method
CN107558494A (en) * 2017-10-16 2018-01-09 西南交通大学 A kind of Underground Station structure and its method of construction
CN108374435A (en) * 2018-05-08 2018-08-07 杭州伟业建设集团有限公司 Underground pipe gallery construction method with rainwater cabin and combustion gas cabin
CN110629801A (en) * 2019-07-26 2019-12-31 中国一冶集团有限公司 Construction method using vertical mold as base surface of pre-paved anti-sticking self-adhesive waterproof roll
CN110629801B (en) * 2019-07-26 2021-05-18 中国一冶集团有限公司 Construction method using vertical mold as base surface of pre-paved anti-sticking self-adhesive waterproof roll
CN112177667A (en) * 2020-09-26 2021-01-05 深圳市隆金达实业有限公司 Underground protection wall for municipal works
CN112177667B (en) * 2020-09-26 2021-10-29 深圳市隆金达实业有限公司 Underground protection wall for municipal works

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