JPS62280695A - Structure of weir for preventing increase of leakage of liquid - Google Patents
Structure of weir for preventing increase of leakage of liquidInfo
- Publication number
- JPS62280695A JPS62280695A JP61123358A JP12335886A JPS62280695A JP S62280695 A JPS62280695 A JP S62280695A JP 61123358 A JP61123358 A JP 61123358A JP 12335886 A JP12335886 A JP 12335886A JP S62280695 A JPS62280695 A JP S62280695A
- Authority
- JP
- Japan
- Prior art keywords
- floor
- weir
- concrete
- water stop
- stop plate
- 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
- 239000007788 liquid Substances 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 13
- 239000010959 steel Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 12
- 238000007689 inspection Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 102000008133 Iron-Binding Proteins Human genes 0.000 description 2
- 108010035210 Iron-Binding Proteins Proteins 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 101100388071 Thermococcus sp. (strain GE8) pol gene Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading 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
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (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】
３、発明の詳細な説明
〔産業上の利用分野〕
本発明は、原子力発電所内において床上漏えい水の拡大
防止用層の構造に関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to the structure of a layer for preventing the spread of water leaking above the floor in a nuclear power plant.
原子力発電所においては、万一の漏えいが生じたとして
も漏えい水が漏えい源よりみやみに拡大しないよう床上
に堰を設けている。堰の高さは通常１５０〜２００ａ−
で床上にコンクリートで設置されている。At nuclear power plants, weirs are installed on the floor to prevent leaked water from spreading beyond the source in the unlikely event of a leak. The height of the weir is usually 150-200a-
It is set in concrete on the floor.
堰の設置位置は、ポンプ等の機器室出入口、床間は部廻
り、建屋出入口周辺が一般的である。Weirs are generally installed at the entrances and exits of equipment rooms such as pumps, around floor spaces, and around building entrances and exits.
これらのうち開口部廻りの堰は、床上の漏えい水が開口
部から下の階に落ち、階下の機器を損傷させないために
重要である。Among these, weirs around the openings are important to prevent leakage water on the floor from falling through the openings to the floor below and damaging the equipment below.
開口部は建設中、定検中において機材搬出入のためのも
のであり、設置場所は通路又は機器分解スペースの床面
の広い場所に設けら・れている。The opening is for carrying in and out of equipment during construction and regular inspections, and is installed in a wide area on the floor of the aisle or equipment disassembly space.
漏えい水の拡散防止には、堰が高い方が好しいのである
が床上１通路上に突起物があることになり建設中、定検
中この堰により作業性が悪くなっている０例えば機器室
に入るのに堰があるため作業中につまずいたり１機材搬
出人のため台車を利用し運搬しようとしても、コンクリ
ート製で床面、渋り２００ｍｍ高くなっているので１乗
り越しかで・；′き豐機器室入口で人力により運び変え
ている。ま＼、−
た、開口部においても通路となる部分に設置されている
ため上記の様な問題がある。また機器分解のスペースに
設置されていると床面との段差があり、機器分解スペー
スが有効に利用できず作業効率を悪くしている。In order to prevent the spread of leakage water, it is better to have a high weir, but since there is a protrusion on one passage above the floor, this weir makes it difficult to work during construction and regular inspections.For example, in the equipment room. Because there is a weir to enter, people tripping during work and trying to use a trolley to transport equipment, but the floor is made of concrete and is 200mm higher, so they have to step over it. It is being transferred manually at the equipment room entrance. Also, since the opening is installed in a passageway, there are problems such as those mentioned above. Furthermore, if it is installed in a space for disassembling equipment, there is a difference in level from the floor, making it difficult to use the space for disassembling equipment effectively and reducing work efficiency.
コンクリート製の堰は、床面に設置されるため床と同時
に施工される。建設中においては堰の周辺に木ワク及び
鋼板等により養生しておく事により、ある程度、作業性
の阻害については対策可能であるが、定検中においては
、建設中と同じく木ワク及び鋼板等で養生を行うことが
考えられるが。The concrete weir will be installed on the floor, so it will be constructed at the same time as the floor. During construction, it is possible to prevent workability to some extent by curing the area around the weir with wooden walls, steel plates, etc.; however, during regular inspections, wooden walls, steel plates, etc. It may be possible to carry out curing.
広範囲であり、養生に使う物品が放射性物質により汚染
物品となり、木ワクの処分により汚染物を入れるドラム
缶の増加及び鋼板の除染作業が必要となり、定検中の被
ばく線量が増加する。The area is wide, and the items used for curing become contaminated with radioactive materials, and the disposal of the wood scum necessitates an increase in the number of drums to hold contaminated items and decontamination work on steel plates, which increases the exposure dose during regular inspections.
以上の事により現状では定検中に養生をする事はできる
だけ行わないようにしている。Due to the above reasons, we are currently trying to avoid curing during periodic inspections as much as possible.
定検中における作業効率の悪さ、養生による物品の除染
作業等により作業員の被ばく線量に影響し、また定検日
数の短縮効果にも悪い影響を与えている。Poor work efficiency during regular inspections and decontamination work of items through curing, etc., affect the radiation doses of workers, and also have a negative impact on the effect of shortening the number of days for regular inspections.
現在、〃ππ方力発電所おいては定検時の被ばく線量率
の低減及び定検日数の短縮に最大限の努力をし、種々の
改善策を効じている。本発明もこの趣旨に添ったもので
ある。Currently, at the ππ Square Power Plant, we are making maximum efforts to reduce the exposure dose rate during regular inspections and shorten the number of days required for regular inspections, and are implementing various improvement measures. The present invention is also based on this idea.
液体の漏えい拡大防止の堰の！Ｑ置場所及びコンクリー
ト環の堰の施工技術を第６図、第２図、第３図、第４図
、第５図に示す。Weir to prevent liquid leakage and expansion! The location of Q and construction techniques for the concrete ring weir are shown in Figures 6, 2, 3, 4, and 5.
１、第６図、第２図、第３図は、機器室からの漏えいし
た液体が通路側に拡大するのを防ぐため設けられたコン
クリ−１〜製の堰１の構造を示すものである。原子力発
電所ではこの堰が約５００箇所ある。1. Figures 6, 2, and 3 show the structure of weir 1 made of concrete 1 to 1, which was installed to prevent liquid leaking from the equipment room from expanding toward the passage. . There are approximately 500 such weirs at nuclear power plants.
コンクリート環の堰の施工法を以下に説明する。The construction method of the concrete ring weir is explained below.
■ 床のコンクリート打設前に床補強のため鉄筋２を組
み込む。■ Incorporate reinforcing bars 2 to reinforce the floor before pouring concrete on the floor.
■ 堰１のための補強鉄筋３を床の鉄筋２より立上げて
設定する６
■ 床基準面９までコンクリートを打設する。床面４付
近のコンクリートと堰部分のコンクリート面の接合を良
くするためこの面をチッピング面５まで電動ハンマーを
用いてチッピングする。■ Set the reinforcing bars 3 for weir 1 by raising them above the floor reinforcing bars 2 6 ■ Pour concrete up to the floor reference level 9. In order to improve the bond between the concrete near the floor surface 4 and the concrete surface of the weir section, this surface is chipped using an electric hammer up to the chipping surface 5.
チッピング化は約２５膿程度である。Chipping is about 25 pus.
■ 堰１のための補強鉄筋６を横方行に組み、これを床
より立上げた鉄筋３より鉄製の結束線他等を用い設定す
る。- Reinforcement reinforcing bars 6 for the weir 1 are assembled horizontally, and set using iron binding wires, etc., from the reinforcing bars 3 raised from the floor.
■ 木ワク７を利用して堰の巾に合わせ（一般には１５
０■）設定する。木ワタは一般に釘を用いることにより
組立てられ″ます状の箱が用いられている。■Use woodwork 7 to match the width of the weir (generally 15
0■) Set. Wooden cotton is generally assembled using nails, and a square-shaped box is used.
■ 木ワク７内にコンクリートを打設し、木ワク７を解
体、撤去する。■ Concrete is poured inside the wooden wall 7, and the wooden wall 7 is dismantled and removed.
■ モルタル９を用いて基面の面取りを行う。一般には
約１０＋＋ｎ程度のモルタルを用いる。■ Chamfer the base using mortar 9. Generally, mortar of about 10++n is used.
■ 堰１の面には水密性のエポキシ樹脂を床面と同じく
塗る。堰の高さＬｌは一般的に２００ｍである。■ Apply watertight epoxy resin to the surface of weir 1 in the same way as the floor surface. The height Ll of the weir is generally 200 m.
２、第１図、第４図、第５図は開口部の廻りに設けられ
たコンクリート環の堰１０の構造を示すものである。開
口部の廻りには、安全保護上は手すり１１が設にされる
ため、堰１０の上部に手すり１１の主柱を設定するため
のパイプ１２が埋込まれている。2. Figures 1, 4, and 5 show the structure of a concrete ring weir 10 provided around an opening. A handrail 11 is provided around the opening for safety reasons, so a pipe 12 for setting the main pillar of the handrail 11 is embedded in the upper part of the weir 10.
開口部の大きさは一般的に２ｍ〜３ｍ角がほとんどであ
る。原子力発電所ではこの開口部が約１５０箇所ある。The size of the opening is generally 2 m to 3 m square. There are approximately 150 such openings in nuclear power plants.
開口部廻りのコンクリート環の堰１０の施工法を以下に
説明する。A method of constructing the concrete ring weir 10 around the opening will be described below.
■ 床のコンクリート打設前に床補強のため鉄筋２を組
み込む。■ Incorporate reinforcing bars 2 to reinforce the floor before pouring concrete on the floor.
■ 堰１ｏのための補強鉄筋３を床の鉄筋２より立上げ
て設定する。■ Set up the reinforcement reinforcing bars 3 for weir 1o above the floor reinforcing bars 2.
■ Ｌ、型金物１３をサポー１−材１４を介して床補強
鉄筋２に溶接により設定する。このＬ型金物１３はコン
クリートハツチのフタ１５との接触によりコンクリート
角の保護のため開口部全周に設置する。(L) Weld the metal mold 13 to the floor reinforcement reinforcing bars 2 via the supports 1 and 14. This L-shaped metal fitting 13 is installed all around the opening in order to protect the concrete corner by contacting with the lid 15 of the concrete hatch.
■ 開口部の形状は階段上に３階段にステップを切る。■ The shape of the opening is to cut three steps above the stairs.
これはコンクリートハツチをささえるためのものである
。この型ワクは床面の堰と同様木ワク７により設定する
。This is to support the concrete hatch. This mold work is set by a wooden work 7 similar to the weir on the floor surface.
■ 床基準面９までコンクリートを打設する。床面４付
近のコンクリートと堰部分のコンクリート面の接合を良
くするためこの面をチッピング面５まで電動ハンマーを
用いてチッピングする。■ Pour concrete up to floor reference level 9. In order to improve the bond between the concrete near the floor surface 4 and the concrete surface of the weir section, this surface is chipped using an electric hammer up to the chipping surface 5.
チッピング化は約２５＋＋ｎ程度である。The chipping is on the order of about 25++n.
■ 堰１０のための補強鉄筋６を横カ行に組み。■ Assemble the reinforcing bars 6 for the weir 10 horizontally.
これを床より立上げた鉄筋３より鉄製の結束線他等を用
い設定する。This is set using iron binding wires, etc. from the reinforcing bars 3 raised from the floor.
■ 堰１０の上面に設定するＬ型金物１６をサポート材
１４を介して床より立上げた鉄筋１３に溶接にて設定す
る。このＬ型金物１６には手すりの主柱をささえるパイ
プ１２が設定されている。(2) An L-shaped metal fitting 16 to be set on the upper surface of the weir 10 is welded to a reinforcing bar 13 raised from the floor via a support member 14. A pipe 12 that supports the main pillar of the handrail is installed in this L-shaped metal fitting 16.
■ 堰１０の型ワクを木ワク７で設定する。■ Set the mold work of weir 10 with wood work 7.
■ 木ワク内にコンクリートを打設し、木ワク７を解体
、撤去する。■ Concrete will be placed inside the woodwork, and woodwork 7 will be dismantled and removed.
と同じく塗る。Paint the same way.
本発明の目的は、原子力発電所において床上に漏えいし
た水を限られた区域に限定するための床上の堰に関し、
堰の機能を保持するとともに、床上の通行並びに機器の
搬出入にとって支障とならない構造を提供し、かつ、堰
施工の簡素化を図ることにある。The object of the present invention is to relate to an above-floor weir for confining water leaked above the floor to a limited area in a nuclear power plant,
The objective is to maintain the functionality of the weir, provide a structure that does not impede traffic on the floor and carry in/out equipment, and simplify the construction of the weir.
本発明は堰の機能を維持するため、止水板を採用し、こ
れを取外しできるようにすることで床上への突起を最小
限にできることにある。更に、開口部での落下防止用手
すりと止水板を組合せることにより作業性の良い堰構造
及び施工性の良い構造となる。The present invention employs a water stop plate to maintain the function of the weir, and by making it removable, the protrusion onto the floor can be minimized. Furthermore, by combining a handrail to prevent falls at the opening and a water stop plate, a weir structure with good workability and a structure with good construction properties can be obtained.
以下に本発明の一実施例を第１図及び第２図から第１３
図までの各図に基づいて説明する。An embodiment of the present invention will be described below from FIGS. 1 and 2 to 13.
The explanation will be based on the figures up to the figure.
本発明の一実施例では、床面に埋込まれたナツト付き鋼
製のプレート１７とコンクリートの堰に相当する鋼板の
止水板１８の採用に特徴がある。One embodiment of the present invention is characterized by the use of a steel plate 17 with nuts embedded in the floor surface and a water stop plate 18 made of a steel plate that corresponds to a concrete dam.
■ 鋼製の止水板１８は床面に埋込まれたボルト付き鋼
製のプレート１７によりささえられる。- The steel water stop plate 18 is supported by a steel plate 17 with bolts embedded in the floor surface.
■ 床面との密着性を良くするために止水板１８とプレ
ート１７との間にゴム製のパツキン１゛９を入れる。■ A rubber gasket 19 is inserted between the water stop plate 18 and the plate 17 to improve adhesion to the floor surface.
■ コンクリート堰の場合の鉄筋の組込み、型ワクの製
作、コンクリート打設工事が床面と同じ時期に施工でき
、建設工事が短縮される。■ In the case of concrete weirs, the installation of reinforcing bars, fabrication of molds, and concrete pouring work can be done at the same time as the flooring, which shortens the construction work.
本実施例による施工法の手順を以下に説明する。The procedure of the construction method according to this embodiment will be explained below.
■ 床のコンクリート打設前に床補強のため鉄筋２を組
み込む。■ Incorporate reinforcing bars 2 to reinforce the floor before pouring concrete on the floor.
■ ナツト付きｍ製のプレート１７をサポート材２０を
介して鉄筋２に結束線にて設定する。(2) A plate 17 made of M with a nut is attached to the reinforcing bar 2 via a support member 20 using a binding wire.
ボルト付き鋼製のプレート１７は鉄板にボルトの径より
少し大きめに穴をあけ、コンクリート面側よりナツト２
１を設置して溶接にて取付ける。For the steel plate 17 with bolts, drill a hole in the steel plate slightly larger than the diameter of the bolt, and insert the nut 2 from the concrete side.
1 and attach it by welding.
サポート材２０は鉄筋により作られている。The support material 20 is made of reinforcing bars.
；゛ ■ 床面のコンクリ−１・打設を行う。;゛ ■ Concreting the floor surface 1/Pouring.
■ 床面に水密性のエポキシ樹脂を塗る。■ Apply watertight epoxy resin to the floor surface.
■ 止水板１８と床面の密着性を良くするためパツキン
１９を付ける。■ Attach a seal 19 to improve the adhesion between the water stop plate 18 and the floor.
■ 止水板１８をボルト２５により固定する。■ Fix the water stop plate 18 with bolts 25.
止水板の材料は一般市場にある鋼板ＣＴ −２００Ｘ
２００ Ｘ ８ Ｘ １３を使用し、製作面での簡素化
が図られる。The material for the water stop plate is steel plate CT-200X, which is available on the general market.
By using 200 x 8 x 13, manufacturing is simplified.
第１１図、第１２図、第１３図により開口部廻りの施工
法の手順を以下に説明する。The construction procedure around the opening will be explained below with reference to FIGS. 11, 12, and 13.
■ 床のコンクリート打設前に床補強のため鉄筋２を組
み込む。■ Incorporate reinforcing bars 2 to reinforce the floor before pouring concrete on the floor.
■ Ｌ型金物１３をサポート材１４を介して床補強鉄筋
２に結束線にて設定する。(2) Set the L-shaped hardware 13 to the floor reinforcing reinforcing bars 2 via the support material 14 using binding wires.
■ 開口部の形状は階段上に３段階にステップを切る。■ The shape of the opening has three steps cut on top of the stairs.
これはコンクリートハツチをささえるためのものであり
、木ワク７により階段上に型ワクを組み設定する。This is to support the concrete hatch, and the wooden work 7 is used to assemble and set the mold work on the stairs.
■ 床面に接するＬ型金物１６はサポート材１４を介し
て床補強鉄筋２に結束線により設定する。(2) The L-shaped metal fittings 16 that are in contact with the floor are attached to the floor reinforcing reinforcing bars 2 via support members 14 using binding wires.
Ｌ型金物１６には、止水板取付けのためのボルト２５の
径より少し大きめの穴をあけ、コンクリート面側よりナ
ツト２２を設置し溶接にて取付ける。サポート材１４は
鉄筋により作られている。開口部の廻りには安全保護上
手すり１１を設置するために手すりの主柱をささえるパ
イプ２３が設定されている。また、主柱をサポートする
のに鋼製のラグ２４を溶接し、剛性を持たせる。手すり
１１は安全保護上床面より一般的にり、１１００ｎｎの
高さとしており、構造は一般に使用されている製品で本
実施に当たって特に構造を変えなくても対応できる。手
すりをｍ！する場合は止水板とし体となったパイプ２３
に主柱を差し込むだけで良い。A hole slightly larger than the diameter of the bolt 25 for attaching the water stop plate is made in the L-shaped metal fitting 16, and a nut 22 is installed from the concrete side and attached by welding. The support material 14 is made of reinforcing bars. A pipe 23 is provided around the opening to support the main pillar of the handrail in order to install the safety handrail 11. Additionally, steel lugs 24 are welded to support the main pillar to provide rigidity. The handrail 11 is generally higher than the floor for safety reasons, and has a height of 1100 nn, and the structure is a commonly used product and can be adapted to this implementation without changing the structure. m the handrail! If you do so, use the pipe 23 as a water stop plate.
Simply insert the main pillar into the
■ 床面にコンクリートを打設し、木ワクを解体、撤去
する。■ Place concrete on the floor and dismantle and remove the woodwork.
■ 床面に水密性のエポキシ樹脂を塗る。■ Apply watertight epoxy resin to the floor surface.
■ 床面との密着性を良くするため止水板１８とＬ型金
物１６との間にゴム製のパツキン１９を入れる。■ A rubber gasket 19 is inserted between the water stop plate 18 and the L-shaped hardware 16 to improve adhesion to the floor surface.
■ 止水板１８をボルト２５により固定する。■ Fix the water stop plate 18 with bolts 25.
以上により床面に設置する止水板と開口部廻りに設置す
る止水板との違いは、手すりの主柱をささえるパイプと
サポートするラグを溶接にて取り付けたものだけである
。Ｌ型金物は従来の方法でも設置されており、本実施例
では、止水板を取付けるナツトを溶接にて付けたのみで
ある。以上により１機能は従来と同じであるが、コンク
リート環の堰に比べて建築上施工法が簡素化されている
。As described above, the only difference between a water stop plate installed on the floor and a water stop plate installed around an opening is that the pipe supporting the main pillar of the handrail and the supporting lug are attached by welding. The L-shaped metal fittings can also be installed by conventional methods, and in this embodiment, only the nuts for attaching the water stop plate were attached by welding. As described above, one function is the same as the conventional one, but the construction method is simplified compared to the concrete ring weir.
更に開口部の廻りには。Also around the opening.
第１４図・・・機器搬出入性を考慮した構造、第１５図
・・・堰として機能を有した構造、第１６図・・・開口
部の廻りの堰、及び安全の機能を有した構造。Figure 14...Structure that takes into consideration the ease of carrying in and out of equipment, Figure 15...Structure that functions as a weir, Figure 16...Structure that has a weir around the opening and a safety function. .
というケース、ケースに即応出来る構造とした事が最大
の利点となっている。The biggest advantage is that it has a structure that can immediately respond to such cases.
止水板の取付は方を工夫することによって堰としての機
能を維持しながら、堰が床上に突起することによって生
じる不利な問題を解決しただけでなく、堰を床上に設け
るときの施工をＭ素化をした。これにより従来避けるこ
とができなかった堰を乗り篇えるための手間を省くこと
ができるとともに１作業がやりやすく、かつ漏えい防止
策の整ったプラントを実現できることになる。すなわち
■ コンクリート環の堰では床面のコンクリ−１〜打設
後に堰のコンクリート打設を行うため、また堰の補強の
ため鉄筋工事を行うため、建設工事が複雑であったが、
プレートの取付のみで。By devising a way to install the water stop plate, we not only solved the disadvantageous problem caused by the weir protruding above the floor while maintaining its function as a weir, but also made it easier to install the weir on the floor. I did the basics. As a result, it is possible to eliminate the trouble of crossing weirs, which could not be avoided in the past, and to realize a plant that is easy to perform one task and has measures in place to prevent leakage. In other words, the construction work for the concrete ring weir was complicated because the weir was poured with concrete after the floor concrete was poured, and reinforcing steel was needed to reinforce the weir.
Just by installing the plate.
床面と一緒にコンクリート打設ができ簡素化が図られる
。Concrete can be poured together with the floor surface, simplifying the process.
■ 通路性、機材搬出入のための重量物を運ぶ台車の運
行が良くなり、また２機器分解スペースの有効利用範囲
が広がり作業効率が大巾に改善される。■ Passageability will be improved, the operation of trolleys that carry heavy objects for loading and unloading equipment will be improved, and the range of effective use of the space for disassembling two devices will be expanded, greatly improving work efficiency.
第１図は本発明の一実施例の床面の止水板取付図。
第２図は床面におけるコンクリート堰の断面図。
第３図は床面におけるコンクリート堰の構造図、第４図
は開口部廻りのコンクリート堰の断面図、Ｘｆ第６図は
原子力発電所内における一般的配巴図１、−”、／
第７図はボルト付鋼板プレート構造図、第８図はポル１
〜付鋼板プレートの平面図、第９図は床面に取付けた止
水板構造図！第１０図は床面に取付けた止水板の取付は
平面図、第１１図は本発明による開口部廻りの止水板の
取付図、第１２図は開口部廻りの止水板の構造図、第１
３図は開口部廻りの止水板の取付は平面図、第１４＠は
本発明による開口部廻り手すり、堰板外し後の状態を示
す部分図、第１５は開口部凋り収取付図、第１６図は開
口部廻り堰１手すり取付図である。
２・・床補強のための鉄筋、３・・・堰のための鉄筋、
４・・・床面、５・・・チッピング面、８・・・モルタ
ル、９・・・床基準面、１２・・パイプ、１３・・・Ｌ
型金物、１４・・・サポート材、１５・・・コンクリー
トフタ、躬１ 図
も２図
馬３図
／ｌ−１−”１
も６図
躬９図
娯１０口
冶１１０
躬１３０
２年FIG. 1 is an installation diagram of a water stop plate on a floor according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the concrete weir at the floor level. Figure 3 is a structural diagram of the concrete weir on the floor, Figure 4 is a cross-sectional view of the concrete weir around the opening, and Xf Figure 6 is a general layout diagram within a nuclear power plant. Figure 8 shows the structure of the steel plate with bolts, and Pol 1.
The plan view of the steel plate with ~ and Figure 9 is the structural diagram of the water stop plate installed on the floor! Figure 10 is a plan view of the installation of the water stop plate attached to the floor, Figure 11 is an installation diagram of the water stop plate around the opening according to the present invention, and Figure 12 is a structural diagram of the water stop plate around the opening. , 1st
Figure 3 is a plan view showing the installation of the waterstop plate around the opening, Figure 14 is a partial view showing the handrail around the opening according to the present invention and the state after the weir plate has been removed, Figure 15 is a diagram showing the installation of the water stop plate around the opening, FIG. 16 is an installation diagram of the weir 1 handrail around the opening. 2. Reinforcing bars for floor reinforcement, 3. Reinforcing bars for weirs,
4... Floor surface, 5... Chipping surface, 8... Mortar, 9... Floor reference surface, 12... Pipe, 13... L
Mold hardware, 14...Support material, 15...Concrete lid, 1 fig. 2 fig. 3/l-1-"1 6 fig. 9 fig.
Claims (1)
において、止水板を利用し、堰の機能を維持し、かつ取
外しできるようにしたことを特徴とする液体の漏えい拡
大防止の堰の構造。1. A weir for preventing the spread of liquid leakage, which is characterized by using a water stop plate in the weir installed around the floor and openings inside a nuclear power plant to maintain the function of the weir and to make it removable. structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61123358A JPS62280695A (en) | 1986-05-30 | 1986-05-30 | Structure of weir for preventing increase of leakage of liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61123358A JPS62280695A (en) | 1986-05-30 | 1986-05-30 | Structure of weir for preventing increase of leakage of liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62280695A true JPS62280695A (en) | 1987-12-05 |
Family
ID=14858604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61123358A Pending JPS62280695A (en) | 1986-05-30 | 1986-05-30 | Structure of weir for preventing increase of leakage of liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62280695A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63313095A (en) * | 1987-06-16 | 1988-12-21 | Toshiba Corp | Floor construction of building |
| JP2010168861A (en) * | 2009-01-26 | 2010-08-05 | Chugoku Electric Power Co Inc:The | Leakage liquid diffusion preventing structure and diffusion preventing method |
-
1986
- 1986-05-30 JP JP61123358A patent/JPS62280695A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63313095A (en) * | 1987-06-16 | 1988-12-21 | Toshiba Corp | Floor construction of building |
| JP2010168861A (en) * | 2009-01-26 | 2010-08-05 | Chugoku Electric Power Co Inc:The | Leakage liquid diffusion preventing structure and diffusion preventing method |
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