Official

In the river flowing through Chuo-ku, there are seawalls designed for storm surges in the Ise Bay typhoon class. What kind of construction is this seismic reinforcement work? There was a signboard installed along Shin-ohashi-dori St. near Kayaba Bridge on the Nihonbashi River, so I would like to quote the details of the work being carried out very easily. Let's support the efforts to improve safety and everyone in charge.
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Anti-corrosion work: Anti-corrosion coating is applied to prevent rust on existing steel sheet piles.
Riverbed excavation work: Remove the earth and sand at the bottom of the river so that the ship can sail safely.
Ground improvement work (below riverbed): Cement is injected under the riverbed to strengthen the ground.
Bend reinforcement work, shear reinforcement work: Reinforcing seawalls with reinforcing bars and concrete.
Ground improvement work (under seawall): Cement is injected under the seawall to strengthen the ground.