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Transportation of a Dry Storage Cask from the Common
Pool Building to the Temporary Dry Cask Storage
Facility in Fukushima Daiichi Nuclear Power Station
April 4, 2013
Tokyo Electric Power Company
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Transportation of a Dry Storage Cask to the Temporary Dry Cask Storage Facility
Today (April 4), a dry storage cask inspected in the Common Pool Building has been
transported to the Temporary Cask Storage Facility in Fukushima Daiichi Nuclear
Power Station.
Temporary Cask Storage Facility
Common Pool
(in the east side of the ground)
Carry in/out of
the pool pit
Carry in/out of the cask
decontamination pit
Transportation dolly
(carry in/out)
N
Monitoring shack
Arch-shaped crane
Overhead traveling
crane on the third
floor (Lift up/down)
Protection fence
Overhead traveling
crane on the first
floor (Reload)
Concrete module
Exhaust
Exhaust
Air supply
Air supply
Cask
Transportation via a special vehicle
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Cask Transportation via a Trailer
Cask being carried out of the Common
Pool Building
Cask being transported
Photos taken on April 4, 2013 by TEPCO
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Dry Storage Cask Installation in the Concrete Module
Concrete module
コンクリートモジュール
Horizontal
水平吊具 hanger
Support
frame
支持架台
Support
支持架台frame
Transportation
vehicle
輸送車両
Fixture
固定具
固定具
Fixture
(Plan view)
（図は平面図を示す）
1. Installation of walls on three sides
(Already completed)
支持架台
Support
frame
支持架台
Support frame fixing bolt
固定ボルト
2. Cask transportation
(Done today)
Concrete module (for the edge)
屋根部コンクリートモジュール（端部用）
3. Cask installation
(Done today)
圧力センサ
Pressure
sensor
Surface
temperature sensor
表面温度センサ
Junction box
ジャンクションボックス
乾式貯蔵
Dry storage
cask
キャスク
外部配線
Wiring
outside
Concrete
module (longitudinal direction)
コンクリートモジュール（長手方向）
(Plan view)
（図は平面図を示す）
4. Wall installation
(Done today)
Air supply給気口
opening
(Plan view)
（図は平面図を示す）
5. Roof installation
(Done today)
外部に引き出した
Sensor
cable drawn outside
センサのケーブル
6. Installation of instruments
(to be done)
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Dry Storage Cask Transported to the Temporary Cask Storage Facility Today
Trunk (γray shield)
Neutron ray shield material (Resin)
External cylinder
Primary lid
Bottom plate
The cask transported today
is a medium-sized cask.
Secondary lid
Support structure
Basket
Medium size casks (4)
Large size casks (5)
Outer diameter
2.2m
2.4m
Total length
5.6m
5.6m
96 tons
115 tons
37
52
Total weight (including fuels)
Number of stored fuels
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Outer Shape of the Concrete Module
Outer shape of the concrete module
Lower side
Upper side
Approx. 4,000
Support frame
Approx. 7,300
Cask installation (Dry storage cask)
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Overview of the Temporary Dry Cask Storage Facility
- Number of casks stored: 50 (Space secured for additional 15 casks)
- Each cask is covered by a concrete module which functions as a storage cover.
- Basic structure: The foundation has been built on an improved ground.
- The support frame is fixed by fixing bolts (similarly to the existing cask storage).
- An arch-shaped crane is installed to allow for handling casks, etc.
Crane
Monitoring shack
Protection fence
N
Gate
Concrete module
Exhaust
Exhaust
Air supply
Air supply
Cask
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Start of Operation of the Temporary Dry Cask Storage Facility
A thermometer (surface temperature sensor) and a pressure sensor will be
installed on the cask to perform calibration.
The operation of the facility will be started once the monitoring of the
pressure between lids and surface temperature utilizing the thermometer
and the pressure sensor is started.
An announcement will be made after the operation starts.
End
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