Transcript of LAND LIQUEFACTION HOW DID EARTHQUAKES AFFECT THE LAND RECLAMATIONS?
- Slide 1
- LAND LIQUEFACTION HOW DID EARTHQUAKES AFFECT THE LAND
RECLAMATIONS?
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- WHAT IS THE RECLAMATION? Land reclamation is the process of
creating new land from ocean, river, and lake.
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- TOKYO BAY Japan is a small island, so land reclamation has been
carried out along the coast of Tokyo Bay since approximately 1910.
Tokyo Bay includes about 96 square miles of reclaimed land area. A
view of northern Tokyo Bay facing Tokyo from Odaiba.
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- RECLAIMED CITY: URAYASU Urayasu city is located 30 min from
Tokyo Station in Chiba prefecture. The city is very well known as a
place where Tokyo Disney Resort consisting of Tokyo Disneyland and
Tokyo DisneySea. Urayasu is newer reclaimed land; therefore, it is
famous for its organized modern residences, hotels, wide streets,
large sidewalks, and beautiful parks.
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- LAND LIQUEFACTION IN URAYASU Massive earthquake on March 11,
2011 led to the phenomenon of liquefaction in Urayasu city because
the city was a place with major areas of reclaimed ground. 85% of
the utility infrastructure, roads, building, and houses were
greatly damaged and affected by liquefaction. The damage cost the
city approximately 73,4 billion to repair.
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- LIQUEFACTION OCCURRED IN TOYKO BAY
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- Construction company employees inspect the manholes pushed out
of the ground
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- Tilted roadside near the Maihama station
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- Cracks in the road surface Uplifted groundwork around the
electric power poles
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- A leaning utility pole
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- Uplifted the road surface in front of the elevator
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- A tilted telephone booth Leaning an apartment and an utility
pole
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- People inspect the parking lot for Tokyo Disneyland showing
soil liquefaction