Abe Government's Admission of Flaws in Henoko Base Construction Plan ・・・

Abe Government's Admission of Flaws in Henoko Base Construction Plan Challenges the Integrity of U.S. and International Institutions



Abe Government's Reluctant Admission

After a long silence, the Abe government finally admits that the construction of a U.S. military base at Henoko-Oura Bay in Okinawa requires significant changes to the original land reclamation plan (see Asahi Shimbun). Parts of the seafloor of the construction site have proven to be extremely fragile, or mayonnaise-like condition. To solidify the seafloor to support a functional airport, a "sand compaction pile method" needs to be carried out (see this video for sand compaction pile method). That is, casing piles will be driven into the seafloor as deep as 60 meters (or 90 meters below the water surface) and the piles will be filled from the top with sand and other compacting materials. Then, the piles are removed slowly leaving the compacting materials in the form of a pillar thus solidifying the seafloor. With this procedure, 76,000 sand pillars will be placed in the seafloor (see Ryukyu Shimpo).

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