Advanced Technology

Overview of civil engineering technologies

Soil improvement to raise levees in New Orleans

Japanese soil improvement technology was highly appreciated during the raising of levees to create hard soil against hurricanes.

Soil improvement to raise levees in New Orleans Image1

New Orleans was hit by Hurricane Katrina in 2005. Japanese construction companies improved the soil to raise levee heights in the affected area, adopting a highly efficient large-diameter deep mixing soil improvement method.
The method adopted in the United States involves the mixing of local soil with cement and hardening the mixture. The method was developed in Japan in the 1970s. A total of 600,000m3 of soil was improved along an 8-km long levee section. The construction was highly esteemed for being completed within three short months while ensuring quality.

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