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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

Slide 13

People inspect the parking lot for Tokyo Disneyland showing soil liquefaction