JP3760329B2 - Deep water intake equipment and method for forming the same - Google Patents
Deep water intake equipment and method for forming the same Download PDFInfo
- Publication number
- JP3760329B2 JP3760329B2 JP13593298A JP13593298A JP3760329B2 JP 3760329 B2 JP3760329 B2 JP 3760329B2 JP 13593298 A JP13593298 A JP 13593298A JP 13593298 A JP13593298 A JP 13593298A JP 3760329 B2 JP3760329 B2 JP 3760329B2
- Authority
- JP
- Japan
- Prior art keywords
- water intake
- curtain wall
- deep water
- steel truss
- forming
- 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 - Fee Related
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- Underground Or Underwater Handling Of Building Materials (AREA)
- Revetment (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は深層取水設備及びその形成方法、特に、火力発電所や原子力発電所の取水口に設置する深層取水設備及びその形成方法に関するものである。
【0002】
【従来の技術】
従来、発電所設備の復水器に使用する冷却水は、水温の季節変化や日中変化が少なく比較的低温で、安定的に大量に確保することを要求されている。
【0003】
一般に、海水の表面は大気輻射などによって夏季は下層に比べて水温が高くなり、冬季は温度が低い。さらに、海面付近は浮遊ゴミなどが多いため、発電所の冷却水としては下層の清澄な温度の低い海水を取水することが望ましい。このため、火力・原子力発電所では深層取水設備を設置している場合が多い。
【0004】
図5は一般に岸壁や沿岸部に設置するカーテンウォール式取水設備を示し、1は海底地盤、2はこの地盤1内に斜めに打ち込んだ複数本の鋼杭、3はこの鋼杭2の上部を互いに結合するための上部コンクリート、4は上記鋼杭2の1つに沿って取り付けたカーテンウォール付属金物、5はカーテンウォール版、6はこのカーテンウォール版5と地盤1間に形成される取水用開口であり、この取水用開口6から下層水が取水される。
【0005】
【発明が解決しようとする課題】
然しながら、従来の深層取水設備及びその形成方法では、設置位置の条件により、海底地盤1に鋼杭2を打ち込むためにオーガを使用して地盤1に孔を形成し、鋼杭2をこの孔に打ち込み挿入し、セメントミルクを注入する必要があり、削孔に手間がかかり、コスト高あるいは工期増になると共に、削孔時あるいはセメント ミルク注入時に濁りが生じるため濁水対策を実施する必要がある等の点で問題があった。
【0006】
本発明は上記の欠点を除くようにしたものである。
【0007】
【課題を解決するための手段】
本発明の深層取水設備形成方法は、海底地盤上に支承を設置する工程と、支承上にカーテンウォール付属金物を取付けた鋼製トラスを据付ける工程と、鋼製トラス外周に水中型枠を設置し、その型枠内に水中コンクリートを打設し硬化させる工程と、上記カーテンウォール付属金物にカーテンウォール版を取付ける工程とより成ることを特徴とする。
【0008】
また、本発明の深層取水設備形成方法は、海底地盤上にくぼみを形成する工程と、このくぼみに支承を設置する工程と、支承上にカーテンウォール付属金物を取付けた鋼製トラスを据付ける工程と、上記くぼみ内に水中コンクリートを打設し硬化させる工程と、上記カーテンウォール付属金物にカーテンウォール版を取付ける工程とより成ることを特徴とする。
【0009】
上記鋼製トラスは予め陸上で製作されることを特徴とする。
【0010】
また、本発明の深層取水設備は、鋼製トラスと、この鋼製トラスを地盤に固定するための水中コンクリートと、上記鋼製トラスに取り付けたカーテンウォール版とより成ることを特徴とする。
【0011】
【発明の実施の形態】
以下図面によって本発明の実施例を説明する。
【0012】
本発明においては、図1に示すように、地盤1が所定の高さより高い場合は、所望深さまで床堀してくぼみ7を形成し、基礎捨石を投入し、潜水士により均す、あるいは地盤1が岩盤の場合には岩盤面を露出し清掃する。
【0013】
次いで、上記基礎捨石上または岩盤上に支承8を設置し、図2に示すようにこの支承8上に予め陸上で形成したカーテンウォール付属金物4を取付けた鋼製トラス10を起重船舶9によって運搬し、据付ける。次いで図3に示すように据付けた鋼製トラス10の外周に水中型枠11を設置し、上記水中型枠11内に水中コンクリート12を打設して固化せしめ、鋼製トラス10を安定させる。その後、カーテンウォール版5を起重船舶9によって運搬し、安定した鋼製トラス10に据付ける。
【0014】
なお、水中型枠11を用いずに上記くぼみに直接水中コンクリートを打設しても良い。
【0015】
【発明の効果】
本発明の深層取水設備及びその形成方法は、上記のとおりであるから、設備形成地点の海底地盤が硬い岩盤等の場合、オーガ等による鋼杭の打込み作業が必要なくなり、また、鋼製トラスは予め陸上で組み立できるため、海上での作業が軽減し、作業時間とコストを大幅に低減できるようになる大きな利益がある。
【図面の簡単な説明】
【図1】 本発明の深層取水設備及びその形成方法の説明図である。
【図2】本発明の深層取水設備及びその形成方法の説明図である。
【図3】本発明の深層取水設備及びその形成方法の説明図である。
【図4】本発明の深層取水設備及びその形成方法の説明図である。
【図5】従来の深層取水設備及びその形成方法の説明図である。
【符号の説明】
1 地盤
2 鋼杭
3 上部コンクリート
4 カーテンウォール付属金物
5 カーテンウォール版
6 取水用開口
7 くぼみ
8 支承
9 起重船舶
10 鋼製トラス
11 水中型枠
12 水中コンクリート[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a deep water intake facility and a method of forming the same, and more particularly to a deep water intake facility installed at a water intake of a thermal power plant or a nuclear power plant and a method of forming the same.
[0002]
[Prior art]
Conventionally, cooling water used for a condenser of a power plant facility is required to be stably secured in large quantities at a relatively low temperature with little seasonal change of water temperature and daytime change.
[0003]
In general, the surface of seawater has a higher water temperature than the lower layer in summer due to atmospheric radiation, and the temperature is lower in winter. Furthermore, since there are many floating debris in the vicinity of the sea surface, it is desirable to take in the lower-layer clear sea water as cooling water for the power plant. For this reason, there are many cases where deep water intake facilities are installed in thermal and nuclear power plants.
[0004]
FIG. 5 shows a curtain wall-type water intake facility generally installed on a quay or coastal area, where 1 is a submarine ground, 2 is a plurality of steel piles driven obliquely into the ground 1, and 3 is an upper portion of the
[0005]
[Problems to be solved by the invention]
However, in the conventional deep water intake equipment and the formation method thereof, a hole is formed in the ground 1 using an auger to drive the
[0006]
The present invention eliminates the above-mentioned drawbacks.
[0007]
[Means for Solving the Problems]
The method of forming a deep water intake facility according to the present invention includes a step of installing a support on the seabed ground, a step of installing a steel truss with a curtain wall attachment on the support, and an underwater formwork on the outer periphery of the steel truss. And a step of placing underwater concrete in the mold and hardening it, and a step of attaching the curtain wall plate to the curtain wall attachment.
[0008]
The deep water intake facility forming method of the present invention includes a step of forming a recess on the seabed ground, a step of installing a support in the recess, and a step of installing a steel truss with a curtain wall attachment mounted on the support. And a step of placing and hardening underwater concrete in the recess, and a step of attaching a curtain wall plate to the curtain wall attachment.
[0009]
The steel truss is manufactured in advance on land.
[0010]
The deep water intake facility of the present invention is characterized by comprising a steel truss, underwater concrete for fixing the steel truss to the ground, and a curtain wall plate attached to the steel truss.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
In the present invention, as shown in FIG. 1, when the ground 1 is higher than a predetermined height, the
[0013]
Next, a
[0014]
Note that underwater concrete may be directly placed in the recess without using the underwater mold 11.
[0015]
【The invention's effect】
Since the deep water intake equipment of the present invention and the formation method thereof are as described above, when the seabed ground at the equipment formation point is a hard rock or the like, it is not necessary to drive a steel pile with an auger or the like. Since it can be assembled on land in advance, there is a great advantage that the work at sea is reduced and the working time and cost can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a deep water intake facility and a method for forming the same according to the present invention.
FIG. 2 is an explanatory diagram of a deep water intake facility and a method for forming the same according to the present invention.
FIG. 3 is an explanatory diagram of a deep water intake facility and a method for forming the same according to the present invention.
FIG. 4 is an explanatory diagram of a deep water intake facility and a method for forming the same according to the present invention.
FIG. 5 is an explanatory diagram of a conventional deep water intake facility and a method for forming the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13593298A JP3760329B2 (en) | 1998-05-01 | 1998-05-01 | Deep water intake equipment and method for forming the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13593298A JP3760329B2 (en) | 1998-05-01 | 1998-05-01 | Deep water intake equipment and method for forming the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11315530A JPH11315530A (en) | 1999-11-16 |
JP3760329B2 true JP3760329B2 (en) | 2006-03-29 |
Family
ID=15163225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13593298A Expired - Fee Related JP3760329B2 (en) | 1998-05-01 | 1998-05-01 | Deep water intake equipment and method for forming the same |
Country Status (1)
Country | Link |
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JP (1) | JP3760329B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106948363B (en) * | 2017-03-03 | 2019-04-02 | 中国石油化工股份有限公司江汉油田分公司采气一厂 | A kind of construction method of oil and gas well drilling concrete derrick footing |
-
1998
- 1998-05-01 JP JP13593298A patent/JP3760329B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH11315530A (en) | 1999-11-16 |
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