JPS6331069B2 - - Google Patents
Info
- Publication number
- JPS6331069B2 JPS6331069B2 JP55138687A JP13868780A JPS6331069B2 JP S6331069 B2 JPS6331069 B2 JP S6331069B2 JP 55138687 A JP55138687 A JP 55138687A JP 13868780 A JP13868780 A JP 13868780A JP S6331069 B2 JPS6331069 B2 JP S6331069B2
- Authority
- JP
- Japan
- Prior art keywords
- containment vessel
- concrete
- pedestal
- diaphragm floor
- cylindrical
- 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
Links
- 238000010276 construction Methods 0.000 claims description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000001629 suppression Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Description
【発明の詳細な説明】
本発明は原子力発電所の格納容器建設工法に係
り、特にコンクリート製の格納容器におけるダイ
ヤフラムフロアの搭載据付工法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for constructing a containment vessel for a nuclear power plant, and more particularly to a method for mounting and installing a diaphragm floor in a concrete containment vessel.
原子力発電所としては電子炉圧力容器をコンク
リート製の格納容器内に収納した構造のものが多
用されている。 Nuclear power plants often use a structure in which an electronic reactor pressure vessel is housed within a concrete containment vessel.
このコンクリート製の格納容器の構築は、従来
から次の方法により行なわれていた。即ち、これ
を第１図の一部を参照して説明すると、先ず、格
納容器底部１の配筋、型枠、コンクリート打設を
行なう。格納容器底部１が完成したならば格納容
器の円筒部内側ライニング２の組立てに入り、次
に格納容器の円錐一段部ライニング３の組立てを
行なう。ダイヤフラムフロア４の高さまで円錐一
段部ライニング３が完成したならば、格納容器の
円筒部コンクリート部２−１、円錐部コンクリー
ト部３−１の配筋、型枠、コンクリート工事を行
なう。これらの作業と並行して圧力容器ペデスタ
ル５の組立てを行なう。このペデスタルは通常、
鉄骨構造となつており、大ブロツクに地組みして
から格納容器底部１上に搭載するので、格納容器
の円筒部コンクリート部２−１、円錐部コンクリ
ート部３−１が完成するまでに、ダイヤフラムフ
ロア４の高さまで組立てればよく、従つて円筒部
コンクリート部２−１、円錐部コンクリート部３
−１の工事がクリテイカルパスとなつている。 Conventionally, this concrete containment vessel has been constructed using the following method. That is, to explain this with reference to a part of FIG. 1, first, reinforcement for the bottom part 1 of the containment vessel, formwork, and concrete pouring are performed. Once the bottom 1 of the containment vessel is completed, the inner lining 2 of the cylindrical part of the containment vessel is assembled, and then the lining 3 of the conical single-stage part of the containment vessel is assembled. Once the conical one-stage lining 3 has been completed to the height of the diaphragm floor 4, reinforcing, formwork, and concrete work for the cylindrical concrete portion 2-1 and the conical concrete portion 3-1 of the containment vessel are performed. In parallel with these operations, the pressure vessel pedestal 5 is assembled. This pedestal is usually
It has a steel frame structure and is assembled into large blocks before being mounted on the bottom 1 of the containment vessel, so by the time the cylindrical concrete part 2-1 and conical concrete part 3-1 of the containment vessel are completed, the diaphragm It is only necessary to assemble it up to the height of the floor 4, therefore, the cylindrical concrete part 2-1 and the conical concrete part 3
-1 construction has become a critical path.
上述した従来の施工方法には次のような不具合
点があつた。即ち、格納容器の円筒部内側ライニ
ング２、円錐一段部ライニング３をダイヤフラム
フロア４のレベルまで完成させた後、さらに格納
容器コンクリート駆体部を施工し、これが完成さ
れてからでないとダイヤフラムフロア４を搭載出
来ないため工期が長くなり、また圧力容器ペデス
タル側は鉄骨構造の大ブロツク搭載として短工期
を可能としているので、大幅な手待ち時間が生
じ、工期や工数に無駄を生じる。しかもダイヤフ
ラムフロア４を搭載した後でないと格納容器の上
部円錐部ライニング６とコンクリート駆体部６−
１の工事に進めないので全体工程に大きく影響
し、格納容器の完全が大幅に遅れる。またダイヤ
フラムフロア４が搭載されないうちは圧力抑制プ
ール７内の工事はいわゆる青空工事となり、作業
能率及び安全上からはなはだ不都合であつた。 The conventional construction method described above has the following drawbacks. That is, after the cylindrical inner lining 2 and the conical one-stage lining 3 of the containment vessel are completed to the level of the diaphragm floor 4, the containment vessel concrete body is further constructed, and the diaphragm floor 4 must be constructed after this is completed. Since it cannot be mounted, the construction period will be longer, and since the pressure vessel pedestal side is equipped with a large steel block, which enables a short construction period, there will be a significant waiting time, resulting in wasted construction period and man-hours. Moreover, only after the diaphragm floor 4 is installed, the upper cone lining 6 of the containment vessel and the concrete body 6-
Since construction cannot proceed to step 1, the overall process will be greatly affected and the completion of the containment vessel will be significantly delayed. Furthermore, before the diaphragm floor 4 was installed, the work inside the pressure suppression pool 7 was so-called open-air work, which was extremely inconvenient from the standpoint of work efficiency and safety.
本発明は以上の事情に鑑みてなされたもので、
その目的とする所は、建設工期の大幅短縮と工数
の低減を図り、しかも作業上の安全性と能率向上
を図つた原子力発電所の格納容器建設工法を得る
ことにある。即ち、本発明は、コンクリート製格
納容器の円筒部内側ライニングと仮設支柱を一体
化構造としたライニングを用いることにより格納
容器円筒部分の完成とは無関係にダイヤフラムフ
ロアの搭載、据付を実施することを特徴とするも
のである。 The present invention was made in view of the above circumstances, and
The purpose of this study is to develop a method for constructing a containment vessel for a nuclear power plant that significantly shortens the construction period, reduces man-hours, and improves operational safety and efficiency. That is, the present invention makes it possible to carry out mounting and installation of the diaphragm floor regardless of the completion of the cylindrical part of the containment vessel by using a lining that has an integrated structure of the inner lining of the cylindrical part of the concrete containment vessel and the temporary support. This is a characteristic feature.
以下、図面を参照して本発明の詳細を説明す
る。 Hereinafter, details of the present invention will be explained with reference to the drawings.
格納容器底部１が完成すると、その上に格納容
器の円筒部内側ライニング２を搭載するが、この
際円筒部内側ライニング２の内面に円周方向に一
定ピツチで仮設のＨ型鋼８を縦方向にあらかじめ
据付ておき、これを大ブロツク一体に地組してお
く。円筒部内側ライニング２とＨ型鋼８の大ブロ
ツクの搭載後、円筒部内側ライニング２相互間の
溶接と検査が完了すればただちにダイヤフラムフ
ロア４を搭載することが出来る。なお、圧力容器
ペデスタル５はこのライニング工事が完了するま
でに、同じく大ブロツクにて組立てておく。 When the containment vessel bottom 1 is completed, the cylindrical inner lining 2 of the containment vessel is mounted on top of it. At this time, temporary H-beams 8 are vertically installed on the inner surface of the cylindrical inner lining 2 at a constant pitch in the circumferential direction. Install it in advance and assemble it into a large block. After mounting the cylindrical inner lining 2 and the large block of H-shaped steel 8, the diaphragm floor 4 can be mounted immediately after welding and inspection between the cylindrical inner linings 2 are completed. Note that the pressure vessel pedestal 5 is also assembled in a large block until this lining work is completed.
ダイヤフラムフロア４の搭載後、更に格納容器
の上部円錐部ライニング６の組立てと、格納容器
の円筒部コンクリート部２−１、円錐部コンクリ
ート部３−１，６−１の工事を並行作業で進めて
行く。 After the diaphragm floor 4 was installed, the assembly of the lining 6 of the upper conical part of the containment vessel and the construction of the cylindrical concrete part 2-1 and the concrete conical parts 3-1 and 6-1 of the containment vessel were carried out in parallel. go.
上述の如く、本発明によると、これまでの経験
から最も工期のかかる格納容器コンクリート駆体
部の完成を待たずにダイヤフラムフロアを搭載出
来ることから手待ちなしに格納容器の工事に進め
ることが出来、短工期で完成できる圧力容器ペデ
スタルの工事完了とほぼ同時に格納容器側も完成
し、ダイヤフラムフロアが搭載出来ることから格
納容器の完成の大幅前倒しが可能となる。従つて
圧力容器ペデスタル工事の手待ちから来る工数の
無駄が省け、また、ダイヤフラムフロアが早期に
搭載出来ることから、搭載後のダイヤフラムフロ
アは圧力抑制プール内工事に対する養生床となり
安全面の向上、作業能率の大幅改善も可能にな
る。 As mentioned above, according to the present invention, the diaphragm floor can be installed without waiting for the completion of the concrete base of the containment vessel, which takes the longest time to construct, based on past experience, so construction of the containment vessel can proceed without waiting. The containment vessel side will be completed almost simultaneously with the completion of the pressure vessel pedestal construction, which can be completed in a short period of time, and the diaphragm floor can be installed, making it possible to significantly advance the completion of the containment vessel. Therefore, wasted man-hours due to waiting for pressure vessel pedestal construction is eliminated, and since the diaphragm floor can be installed early, the diaphragm floor after installation becomes a protective bed for work inside the pressure suppression pool, improving safety and improving work efficiency. It also becomes possible to significantly improve efficiency.
これらの種々の効果の総合により原子力発電所
建設工期の大幅な短縮と費用の節約を図ることが
出来る。 By combining these various effects, it is possible to significantly shorten the construction period of a nuclear power plant and save costs.
以上、本発明をその具体例について説明した
が、本発明は上述の特定の実施例に限定されるも
のではなく、その精神を逸脱しないで幾多の変
化、変形をなし得る事は勿論である。 Although the present invention has been described above with reference to specific examples thereof, the present invention is not limited to the specific embodiments described above, and it goes without saying that many changes and modifications can be made without departing from the spirit thereof.
第１図は本発明のコンクリート製一次格納容器
の構築工法を説明する縦断面図、第２図はその
−線に沿う横断面図である。
１……格納容器底部、２……円筒部内側ライニ
ング、２−１……円筒部コンクリート部、３……
円錐一段部ライニング、３−１，６−１……円錐
部コンクリート部、４……ダイヤフラムフロア、
５……圧力容器ペデスタル、６……上部円錐部ラ
イニング、７……圧力抑制プール、８……Ｈ型
鋼。
FIG. 1 is a longitudinal cross-sectional view illustrating the construction method of a concrete primary containment vessel of the present invention, and FIG. 2 is a cross-sectional view taken along the - line. 1...Bottom of the containment vessel, 2...Inner lining of the cylindrical part, 2-1...Concrete part of the cylindrical part, 3...
Conical first stage lining, 3-1, 6-1...conical part concrete part, 4...diaphragm floor,
5... Pressure vessel pedestal, 6... Upper cone lining, 7... Pressure suppression pool, 8... H-shaped steel.
Claims (1)
ぼ円筒形のコンクリート製の格納容器内部に、圧
力容器ペデスタルとこの圧力容器ペデスタルに片
側を支持され他端を格納容器側に支持されてなる
ダイヤフラムフロアとを具備してなる原子力発電
所の格納容器建設工法において、格納容器の円筒
部内側ライニングとこの円筒部内側ライニング及
びダイヤフラムフロアとを支持するＨ型鋼を大ブ
ロツクにあらかじめ組み立てておき、この大ブロ
ツクを格納容器底部に搭載し、上記大ブロツクの
円筒部内側ライニング相互間を溶接し、上記溶接
及びその検査が終了するまでに圧力容器ペデスタ
ルの据付を終了し、この圧力容器ペデスタルと上
記大ブロツクのＨ型鋼間にダイヤフラムフロアを
搭載し、この搭載後に上記格納容器円筒部コンク
リートの工事が終了することを特徴とする原子力
発電所の格納容器建設工法。 ２ Ｈ型鋼は格納容器の円筒部内側ライニングの
内側に一定間隔をおいて溶接されることを特徴と
する特許請求の範囲第１項記載の原子力発電所の
格納容器建設工法。[Scope of Claims] 1. A pressure vessel pedestal and a pressure vessel pedestal, one end supported by the pressure vessel pedestal and the other end supported by the containment vessel side, are provided inside a nearly cylindrical concrete containment vessel lined with concrete. In a construction method for a containment vessel for a nuclear power plant having a diaphragm floor, the cylindrical inner lining of the containment vessel and the H-shaped steel supporting the cylindrical inner lining and the diaphragm floor are assembled in advance into a large block, This large block is mounted on the bottom of the containment vessel, the inner linings of the cylindrical part of the large block are welded together, and the installation of the pressure vessel pedestal is completed by the time the above welding and inspection are completed, and this pressure vessel pedestal and the above A method for constructing a containment vessel for a nuclear power plant, characterized in that a diaphragm floor is installed between the H-shaped steels of a large block, and after the diaphragm floor is installed, work on the concrete of the cylindrical part of the containment vessel is completed. 2. The method for constructing a containment vessel for a nuclear power plant according to claim 1, wherein the H-shaped steels are welded at regular intervals inside the inner lining of the cylindrical part of the containment vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55138687A JPS5763482A (en) | 1980-10-06 | 1980-10-06 | Method of constructing reactor container of atomic power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55138687A JPS5763482A (en) | 1980-10-06 | 1980-10-06 | Method of constructing reactor container of atomic power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5763482A JPS5763482A (en) | 1982-04-16 |
| JPS6331069B2 true JPS6331069B2 (en) | 1988-06-22 |
Family
ID=15227755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55138687A Granted JPS5763482A (en) | 1980-10-06 | 1980-10-06 | Method of constructing reactor container of atomic power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5763482A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032391A (en) * | 1973-07-25 | 1975-03-29 |
-
1980
- 1980-10-06 JP JP55138687A patent/JPS5763482A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5032391A (en) * | 1973-07-25 | 1975-03-29 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5763482A (en) | 1982-04-16 |
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