Japan's Hamaoka atomic plant to build huge seawall

Jul 22, 2011
Chubu Electric Power's nuclear power plant stands at the coast of Omaezaki in Shizuoka prefecture, 200km west of Tokyo in May 2011. Chubu Electric said it will build an 18-metre (60 foot) anti-tsunami seawall to protect its ageing Hamaoka nuclear plant located near a faultline in a region seen as vulnerable to earthquakes.

Chubu Electric said Friday it will build an 18-metre (60 foot) anti-tsunami seawall to protect its ageing Hamaoka nuclear plant located near a faultline in a region seen as vulnerable to earthquakes.

The decision came two months after the government asked the plant to shut down and add new disaster-mitigation measures amid deepening public fears about the safety of nuclear power in the wake of the Fukushima Daiichi crisis.

The plant's operator Chubu Electric Power said the and other additional should protect the plant from a tsunami as strong as the one that crippled the Fukushima plant on after the March 11 earthquake.

The Hamaoka plant faces the Pacific Ocean and sits in the Tokai region, southwest of Tokyo, where seismologists have long warned that a major quake is overdue.

Anti-nuclear campaigners argue that the seismically unstable area, where two major meet, makes Hamaoka the most dangerous atomic facility in the quake-prone country.

Chubu Electric will spend about 100 billion yen ($1.3 billion) on the 1.6-kilometre (1 mile) wall, steps to prevent flooding inside the plant, and programmes to safeguard cooling systems that bring reactors to safe shutdown in case of severe accidents.

An earthquake as strong as 9.0 in magnitude, as it was on March 11, could cause a 10-metre tsunami near Hamaoka, Chubu Electric said.

The five-reactor Hamaoka plant accounts for almost 12 percent of the output of Chubu Electric, which serves a large part of Japan's industrial heartland, including many Toyota auto factories.

After the twin earthquake and tsunami disaster, Chubu Electric planned to build a more than 12-metre-high seawall at the Hamaoka plant.

But it revised the that and decided to build an 18-metre-high wall, taking into consideration that 15 metre-high tore into the Fukushima Daiichi plant operated by Power Co.

The crisis has forced the evacuation of tens of thousands of area residents, devastated the local commerce and farming, and caused a nationwide food contamination scare.

Explore further: Old timey car to replace NYC horse carriages shown

add to favorites email to friend print save as pdf

Related Stories

Areva to set up treatment system at Japan plant

Apr 19, 2011

French nuclear group Areva said Tuesday it will set up a system to treat radioactive water from a quake-hit Japanese power plant to allow power supplies and cooling systems to be repaired.

Japan says plant clean-up will take decades

Jul 09, 2011

Japan's prime minister said on Saturday the decommissioning of the crippled Fukushima nuclear plant would take decades, in the first government announcement of a long-term timeframe for the clean-up.

GE defends nuclear plant design

Mar 18, 2011

General Electric defended its 40 year old Mark 1 reactors at the center of Japan's nuclear crisis Friday, saying that early questions about reactor's safety had long been addressed.

Japan nuclear plant firm opens Twitter account

Mar 17, 2011

Tokyo Electric Power Co. (TEPCO), which operates the quake-hit Japanese nuclear reactors, opened an official Twitter account late Thursday, immediately drawing more than 117,000 followers.

Recommended for you

Obama launches measures to support solar energy in US

14 hours ago

The White House Thursday announced a series of measures aimed at increasing solar energy production in the United States, particularly by encouraging the installation of solar panels in public spaces.

Tailored approach key to cookstove uptake

14 hours ago

Worldwide, programs aiming to give safe, efficient cooking stoves to people in developing countries haven't had complete success—and local research has looked into why.

Wireless power transfer achieved at five-meter distance

15 hours ago

The way electronic devices receive their power has changed tremendously over the past few decades, from wired to non-wired. Users today enjoy all kinds of wireless electronic gadgets including cell phones, ...

User comments : 0

More news stories

Hackathon team's GoogolPlex gives Siri extra powers

(Phys.org) —Four freshmen at the University of Pennsylvania have taken Apple's personal assistant Siri to behave as a graduate-level executive assistant which, when asked, is capable of adjusting the temperature ...

Better thermal-imaging lens from waste sulfur

Sulfur left over from refining fossil fuels can be transformed into cheap, lightweight, plastic lenses for infrared devices, including night-vision goggles, a University of Arizona-led international team ...

Cosmologists weigh cosmic filaments and voids

(Phys.org) —Cosmologists have established that much of the stuff of the universe is made of dark matter, a mysterious, invisible substance that can't be directly detected but which exerts a gravitational ...