JPS62218894A - Nuclear reactor container and method of constructing organism shielding wall - Google Patents
Nuclear reactor container and method of constructing organism shielding wallInfo
- Publication number
- JPS62218894A JPS62218894A JP61062682A JP6268286A JPS62218894A JP S62218894 A JPS62218894 A JP S62218894A JP 61062682 A JP61062682 A JP 61062682A JP 6268286 A JP6268286 A JP 6268286A JP S62218894 A JPS62218894 A JP S62218894A
- Authority
- JP
- Japan
- Prior art keywords
- shielding wall
- containment vessel
- reactor containment
- biological shielding
- constructing
- 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
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000010276 construction Methods 0.000 description 20
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003466 welding Methods 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)
- Processing Of Solid Wastes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、原子炉格納容器及び生体遮蔽壁を構築する方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method of constructing a nuclear reactor containment vessel and a biological shielding wall.
「従来の技術」
従来１．原子炉格納容器及び生体遮蔽壁を構築する場合
、第３図に■ないし■で示す工程順で実施Ｊｔ 釦１
／ｉ’Ｔ −＋ −−ｈＮ Ｌ
±１°量ル々間 ＋ −１−−フｉｃ 琳並 りを
形成した後に、■基礎部３の上に原子炉格納容器２を構
築し、該構築工事が終了してから、■原子炉格納容器２
を取りｊ囲む生体遮蔽壁ｌのコンクリート打設作業を行
なうようにしている。該生体遮蔽壁ｌは、原子炉格納容
器２における自由な熱膨張を許容するように、原子炉格
納容器２の側部表面に膨張用空間９を空けて配設される
とともに、原子炉格納容器２の内部圧力が異常に上昇し
て、設計限界を越えて膨張した場合に、原子炉格納容器
２の異常膨張による圧接力を内面で受けて、変形を抑制
する機能を有している。このため、原子炉格納容器２の
側部が完成して形状が決定してから、原子炉格納容器２
の側部表面との間に、例えば５０ｍｍの間隔の膨張用空
間９を設定しながら、原子炉格納容器２の側゛部表面の
形状を倣って、コンクリート打設を行ない、生体遮蔽壁
ｌを構築する必要がある。"Conventional technology" Conventional 1. When constructing the reactor containment vessel and biological shielding wall, carry out the steps in the order of steps shown by ■ to ■ in Figure 3. Button 1
/i'T −+ --hN L
After forming the + -1--fic Rinnami line between ±1°, the reactor containment vessel 2 is constructed on the foundation 3, and after the construction work is completed, the reactor Containment vessel 2
Concrete work is being carried out to construct a bio-shielding wall surrounding the area. The biological shielding wall l is disposed with an expansion space 9 on the side surface of the reactor containment vessel 2 so as to allow free thermal expansion in the reactor containment vessel 2, and When the internal pressure of the reactor containment vessel 2 abnormally increases and the reactor containment vessel 2 expands beyond the design limit, the internal pressure of the reactor containment vessel 2 due to the abnormal expansion is received by the inner surface to suppress deformation. Therefore, after the side part of the reactor containment vessel 2 is completed and the shape is determined, the reactor containment vessel 2
Concrete is poured following the shape of the side surface of the reactor containment vessel 2, while setting an expansion space 9 with an interval of, for example, 50 mm between the side surface of the reactor containment vessel 2 and the biological shielding wall l. Need to build.
「発明が解決しようとする問題点」
したがって、前記■ないし■の工程順には必然性があっ
て、原子炉格納容器２が完成しないと、生体遮蔽壁ｌの
コンクリート打設作業が実施できないために、原子力発
電プラントの構築工事が長期間に及ぶ原因の一つになっ
ている。"Problems to be Solved by the Invention" Therefore, there is a necessity in the order of steps (1) through (2) above, and the concrete placement work for the biological shielding wall l cannot be carried out until the reactor containment vessel 2 is completed. This is one of the reasons why construction work for nuclear power plants takes a long time.
本発明は、このような従来技術の問題点を有効に解決す
ることを目的としている。The present invention aims to effectively solve the problems of the prior art.
「問題点を解決するための達成手段」
コンクリートを打設して形成した基礎部の上に、原子炉
格納容器を構築するとともに、その外側方に作業用空間
を空けて囲む外側生体遮蔽壁を構築し、次いで、原子炉
格納容器の側部と外側生体遮蔽壁との間に、内側生体遮
蔽壁を構築するものであり、外側生体遮蔽壁のコンクリ
ート打設工程と、原子炉格納容器の横筋工事とを並行し
て推進することによって、工期の短縮をするものである
。``Means for solving the problem'' A reactor containment vessel is constructed on the foundation formed by pouring concrete, and an outer bioshielding wall surrounding it with a working space left outside. Then, an inner bioshielding wall is constructed between the side of the reactor containment vessel and the outer bioshielding wall. By proceeding with the construction work in parallel, the construction period will be shortened.
「実施例」
第１図（Ａ）ないしくＣ）及び第２図は、本発明に係る
原子炉格納容器及び生体遮蔽壁の構築方法をＭＡｒ（Ｋ
−Ｉｔ型原子炉に適用した一実施例の構築工程を示すも
のである。図中において、従来例と共通する部分には同
一符号を付して説明を簡略化する。"Example" Figures 1 (A) to C) and 2 illustrate the method for constructing a reactor containment vessel and biological shielding wall according to the present invention.
- This figure shows the construction process of an embodiment applied to an It-type nuclear reactor. In the drawings, parts common to the conventional example are given the same reference numerals to simplify the explanation.
該−実施例では、第１図（Ａ）に示すように、生体遮蔽
壁ｌ及び原子炉格納容器２の建設に際して、まず基礎部
３のコンクリート打設作業を実施し、その後に生体遮蔽
壁ｌと原子炉格納容器２との建設作業が、一部重量状態
で行なわれる。In this embodiment, as shown in FIG. 1(A), when constructing the biological shielding wall l and the reactor containment vessel 2, concrete pouring work for the foundation part 3 is first carried out, and then the biological shielding wall l is constructed. The construction work of the reactor containment vessel 2 and the reactor containment vessel 2 is partially carried out in a heavy state.
前記生体遮蔽壁ｌは、原子炉建屋の一部を構成するとと
もに、原子炉格納容器２の側部を近接状態で囲むように
構築する必要があるため、第１図（Ｂ）に示すように、
外側生体遮蔽壁４を先に構築しておいて、原子炉格納容
器２の側部が完成してから、第１図（Ｃ）に示すように
、内側生体遮蔽壁５を構築して、境界りで両壁を接合し
た構造の生体遮蔽壁ｌを完成させるという分割状態の工
程によって横築される。The biological shielding wall 1 constitutes a part of the reactor building and needs to be constructed so as to closely surround the side of the reactor containment vessel 2, so it is constructed as shown in FIG. 1(B). ,
The outer biological shielding wall 4 is constructed first, and after the side part of the reactor containment vessel 2 is completed, the inner biological shielding wall 5 is constructed as shown in FIG. It is constructed horizontally through a divided process in which the biological shielding wall l is completed by joining both walls together.
即ち、原子炉格納容器２の側部の概略形状は、その構築
作業が完了しなくても、多少の構築誤差を見込んだ状態
で予測できる。したがって、基礎部３の完成後に、原子
炉格納容器２の構築作業開始と前後して、外側生体遮蔽
壁４の構築を開始する。また、この場合において、外側
生体遮蔽壁４は、コンクリート打設や溶接作業等を実施
するための作業用空間６を形成するように、原子炉格納
容器２の側部表面から例えば８００＋ｍａ程度外方に離
間した位置が内面となるように、多数の配筋７を第２図
のように配設して、コンクリート打設することにより構
築するもので、原子炉格納容器２の近接位置を除き、原
子炉建屋の他の部分のコンクリート打設作業と前後して
作業を行ない、原子炉格納容器２と直接的に関係なく、
原子炉建屋の構築を実施する。That is, the general shape of the side portion of the reactor containment vessel 2 can be predicted even if the construction work is not completed, taking into account some construction errors. Therefore, after the foundation part 3 is completed, the construction of the outer biological shielding wall 4 is started around the time when the construction work of the reactor containment vessel 2 is started. Further, in this case, the outer biological shielding wall 4 is arranged outward by about 800+ma from the side surface of the reactor containment vessel 2 so as to form a working space 6 for performing concrete pouring, welding work, etc. It is constructed by arranging a large number of reinforcing bars 7 as shown in Figure 2 and pouring concrete so that the inner surface is located at a distance from the reactor containment vessel 2. The work is carried out before and after the concrete pouring work for other parts of the reactor building, and is not directly related to the reactor containment vessel 2.
Construct the reactor building.
また、原子炉格納容器２は、第１図（Ｂ）に示すように
、外側生体遮蔽壁４が先に構築されても、作業用空間６
を介して外側生体遮蔽壁４と分離された状態にあり、相
互の干渉が生じることがないため、外側生体遮蔽壁４あ
るいは原子炉建屋の構築と関係が少なく、独立した工程
、つまり並列状態の工程で構築可能である。Furthermore, as shown in FIG. 1(B), the reactor containment vessel 2 has a working space 6 even if the outer biological shielding wall 4 is constructed first.
Since it is separated from the outer bioshielding wall 4 through the structure and there is no mutual interference, there is little relationship with the construction of the outer bioshielding wall 4 or the reactor building, and it is an independent process, that is, a parallel process. It can be constructed in a process.
そして、原子炉格納容器２の側部が形成された後、該側
部と前記外側生体遮蔽壁４との間に、内側生体遮蔽壁５
を構築する。該内側生体遮蔽壁５は、コンクリ−°ト打
設のためのライナプレート８を、原子炉格納容器２の側
部に対して、例えば５０ｍｍ程度の膨張用空間９を空け
て配設し、該膨張用空間９と前記外側生体遮蔽壁４との
間に、コンクリートを打設して構築するものである。After the side portion of the reactor containment vessel 2 is formed, an inner biological shielding wall 5 is placed between the side portion and the outer biological shielding wall 4.
Build. The inner bioshielding wall 5 has a liner plate 8 for concrete pouring arranged with an expansion space 9 of, for example, about 50 mm at the side of the reactor containment vessel 2. It is constructed by pouring concrete between the expansion space 9 and the outer biological shielding wall 4.
このような構築工程であると、生体遮蔽壁ｌにおける外
側生体遮蔽壁４は、原子炉格納容器２の構築工程の進行
具合と関係がなくなり、原子炉建屋とともにコンクリー
ト打設作業を行なって、順次上方へ構築して行けばよい
。この場合、外側生体遮蔽壁４はその厚さ寸法を十分な
ものとすることができるため、生体遮蔽壁１の上部に位
置している原子炉建屋の支持強度が損なわれることがな
い。また、外側生体遮蔽壁４の構築工程において、第１
図（Ｂ）に示すように、内面がオーバーハング状となる
が、この内面は次の内側生体遮蔽５の横築によって埋設
状態になってしまうため、仕上がり状態の良否は問題と
ならず、かつ、必要に応じて、次ぎにコンクリート打設
される内側生体遮蔽５との接着性を向上させるためのア
ンカ筋等を内面に突出させておく等の配慮をしておく。In such a construction process, the outer biological shielding wall 4 of the biological shielding wall l has no relation to the progress of the construction process of the reactor containment vessel 2, and the concrete placement work is performed together with the reactor building, and the outer biological shielding wall 4 of the biological shielding wall l is Just build upwards. In this case, since the outer biological shielding wall 4 can have a sufficient thickness, the supporting strength of the reactor building located above the biological shielding wall 1 is not impaired. In addition, in the construction process of the outer biological shielding wall 4, the first
As shown in Figure (B), the inner surface has an overhang shape, but since this inner surface will be buried by the next horizontal construction of the inner biological shield 5, the quality of the finished state is not a problem. If necessary, consideration should be given to protruding anchor lines or the like from the inner surface in order to improve adhesion to the inner biological shield 5 to be concreted next.
一方、内側生体遮蔽５は、原子炉格納容器２の側部が完
成してから、前記ライナプレート８を膨張用空間９の寸
法（例えば５０ｍｍ ）に合わせて設定するように、原
子炉格納容器２を囲むように積み上げ形成して、該ライ
ナプレート８と前記外側生体遮蔽壁４との間に、コンク
リート打設を行なって構築するもので、ライナプレート
８はコンクリート層に埋設される。この場合、ライナプ
レート８をオーバーハング状に積み上げている部分は、
ライナプレート８自身が円錐形状であるために、自立性
を有しており、外側生体遮蔽壁４の内面に支持させるこ
とを省略あるいは簡略できる。また、内側生体遮蔽５は
、原子炉格納容器２の異常膨張時にその圧接力を受けて
、圧縮されるものであるから、第２図に示すように、コ
ンクリート層の中の配筋を省略あるいは簡略し、生体遮
蔽壁ｌに作用する張力は、外側生体遮蔽壁４で分担する
ものである。On the other hand, the inner bioshield 5 is installed in the reactor containment vessel 2 in such a way that the liner plate 8 is set to match the dimension (for example, 50 mm) of the expansion space 9 after the side part of the reactor containment vessel 2 is completed. The liner plates 8 are stacked to surround the outer biological shielding wall 4, and concrete is poured between the liner plates 8 and the outer biological shielding wall 4, and the liner plates 8 are buried in the concrete layer. In this case, the portion where the liner plates 8 are piled up in an overhanging manner is
Since the liner plate 8 itself has a conical shape, it is self-supporting, and supporting it on the inner surface of the outer biological shielding wall 4 can be omitted or simplified. In addition, since the inner bioshield 5 is compressed by the pressure applied during abnormal expansion of the reactor containment vessel 2, as shown in FIG. 2, reinforcement in the concrete layer may be omitted or For simplicity, the tension acting on the biological shielding wall l is shared by the outer biological shielding wall 4.
なお、本発明は次の実施態様を包含する。Note that the present invention includes the following embodiments.
■原子炉以外の生体遮蔽壁及び原子炉格納容器の構築に
適用すること。■Applicable to the construction of biological shielding walls and reactor containment vessels other than nuclear reactors.
■生体遮蔽壁が直立状となっている等、図示側以外の形
状のものに適用すること。■Applicable to structures other than those shown in the illustration, such as those where the biological shielding wall is upright.
「発明の効果」
本発明における原子炉格納容器及び生体遮蔽壁の構築方
法は、基礎部の上に原子炉格納容器を構築するとともに
、その外側方に作業用空間を空けて囲む外側生体遮蔽壁
を構築し、次いで、原子炉格納容器の側部と外側生体遮
蔽壁との間に、原子炉格納容器における側部の異常膨張
時の圧接力を支持するための内側生体遮蔽壁を構築する
ものでするものであるから、垂直状壁部の内部に作業用
空間が形成されて、原子炉格納容器の建設作業に支障を
与えることがなく、垂直状壁部のコンクリート打設作業
と、原子炉格納容器の建設工事とを並行して推進するこ
とが可能となり、原子力発電プラントにおける工期の短
縮を達成することができる等の効果を奏するものである
。"Effects of the Invention" The method for constructing a reactor containment vessel and a biological shielding wall according to the present invention includes constructing a reactor containment vessel on a foundation, and an outer biological shielding wall that surrounds the reactor containment vessel with a working space left on the outside. and then constructing an inner bioshielding wall between the side of the reactor containment vessel and the outer bioshielding wall to support the pressure force during abnormal expansion of the side of the reactor containment vessel. Because of this, a working space is formed inside the vertical wall, which does not interfere with the construction work of the reactor containment vessel, and allows for the concrete pouring work of the vertical wall and the reactor. This makes it possible to proceed with the construction work of the containment vessel in parallel, and has the effect of shortening the construction period at the nuclear power plant.
第１図（Ａ）ないしくＣ）は本発明に係る原子炉格納容
器及び生体遮蔽壁の構築方法の一実施例を示す構築工程
における半分を省略した正断面図、第２図は第１図（Ｃ
）における鎖線■部分の拡大図、第３図は従来技術にお
ける原子炉格納容器及び生体遮蔽壁の構築方法の例を示
す半分を省略した正断面図である。
ｌ・・・・・・生体遮蔽壁、２・・・・・・原子炉格納
容器、３・・・・・・基礎部、４・・・・・・外側生体
遮蔽壁、５・・・・・・内側生体遮蔽壁、６・・・・・
・作業用空間、７・・・・・・配筋、８・・・・・・ラ
イナプレート、９・・・・・・膨張用空間。
出願人 石川島播磨重工業株式会社
講１図（Ｂ）
第２図Figures 1 (A) to (C) are front sectional views with half omitted in the construction process showing an embodiment of the method for constructing a reactor containment vessel and biological shielding wall according to the present invention, and Figure 2 is the same as Figure 1. (C
), and FIG. 3 is a front sectional view with half omitted, showing an example of a conventional method for constructing a reactor containment vessel and a biological shielding wall. l...Biological shielding wall, 2...Reactor containment vessel, 3...Foundation, 4...Outer biological shielding wall, 5...・・Inner biological shielding wall, 6・・・・
・Working space, 7... Reinforcement arrangement, 8... Liner plate, 9... Space for expansion. Applicant Ishikawajima Harima Heavy Industries Co., Ltd. Figure 1 (B) Figure 2
Claims (1)
礎部の上に原子炉格納容器を構築するとともに、その外
側方に作業用空間を空けて囲む外側生体遮蔽壁を構築す
る工程と、原子炉格納容器の側部と外側生体遮蔽壁との
間に内側生体遮蔽壁を構築する工程とを有することを特
徴とする原子炉格納容器及び生体遮蔽壁の構築方法。a step of pouring concrete to form a foundation; a step of constructing a reactor containment vessel on the foundation, and a step of constructing an outer bioshielding wall surrounding the reactor containment vessel with a working space left outside thereof; A method for constructing a reactor containment vessel and a biological shielding wall, the method comprising the step of constructing an inner biological shielding wall between a side of the reactor containment vessel and an outer biological shielding wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61062682A JPS62218894A (en) | 1986-03-20 | 1986-03-20 | Nuclear reactor container and method of constructing organism shielding wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61062682A JPS62218894A (en) | 1986-03-20 | 1986-03-20 | Nuclear reactor container and method of constructing organism shielding wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62218894A true JPS62218894A (en) | 1987-09-26 |
Family
ID=13207299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61062682A Pending JPS62218894A (en) | 1986-03-20 | 1986-03-20 | Nuclear reactor container and method of constructing organism shielding wall |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62218894A (en) |
-
1986
- 1986-03-20 JP JP61062682A patent/JPS62218894A/en active Pending
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