Significant technology of the No.2 Sea Fort construction.
The technology of constructing a fortress island in the sea at a depth of 8 to 12 meters without using a machine was unique in the world.
Due to large-scale earthquakes such as the Tokyo Metropolitan Earthquake and the Tokai-Tonankai-Nankai Earthquake, it was…
Technology of the No.2 Sea Fort construction
Foot wall and back wall of upper part installation of No.2 Sea Fort were made of…
Technology of the No.2 Sea Fort construction
Revetment work also adopted for construction of the No.3 Sea Fort. No.2 Sea Fort was the artificial…
Bricks construction and bunker
From No.2 Sea Fort they found some other bricks other than Oukashourenga (brick with cherry seal)…
Unknown people leaving no marks on history
Many workers, not just engineers, engaged in the construction of the sea fort. The "Memorial to…
Bricks construction and bunker
Although there are no brick constructions such as barracks, bunkers and concrete constructions such as batteries…
Unknown people leaving no marks on history
Construction of No.2 Sea Fort relied on human power It is said that the construction of…
Those worked for the construction of Tokyo Bay Sea Forts.
Akinori Nishida was born in Iwakuni (Yamaguchi Prefecture). At the end of the Edo period, it…
Technology of the No.2 Sea Fort construction
Akinori Nishida contributed in technical aspect of Tokyo Bay Sea Forts construction plan. He collected documents…