kuraray


News Releases 2005

Emplacement of Retaining Wall as Tidal-Surge Countermeasure

July 21, 2005
Kuraray Co., Ltd.

In April 2005, Kuraray Co., Ltd. decided to build a retaining wall as a tidal-surge countermeasure at its Okayama Plant. After receiving approval from the Ministry of Land, Infrastructure and Transport, construction began in May and will be completed at the end of July.

When a typhoon struck the Inland Sea region last year, the associated tidal surge caused a great deal of sea water to flood the Okayama Plant through a nearby mooring facility, causing major damage.
To prevent a reoccurrence, a retaining wall was built on the plant grounds near the mooring berth.

This retaining wall will minimize flooding damage within the plant from future typhoons, ensuring stability of operation and a stable supply of products to users.

The retaining wall. The retaining wall.

Gaps in the wall, open under normal conditions, can be closed with corrosion-resistant, aluminum alloy shutters. Gaps in the wall, open under normal conditions,
can be closed with corrosion-resistant,
aluminum alloy shutters.

The Retaining Wall

1. Size
Thickness 0.3m (top) 1.2m (bottom)
Height 1.5m
Length 288m
(There are three openings)
2. Location
In the northeastern part of the plant grounds, near the Asahikawa mooring facilities
(in an area controlled by the Ministry of Land, Infrastructure and Transport)
3. Construction costs
Approx. ¥60 million
4. Construction period
May through July, 2005
5. Materials
Concrete (gravity-type retaining wall)
6. Other
Openings are fitted with corrosion-resistant aluminum alloy shutters.