At first the magnitude of the tsunami
at the site should be estimated by the simulation analysis and the
adequate countermeasure to the tsunami is taken into consideration
of the design of Mega-Float in advance, mainly on the mooring system. It is rather small at the deep water site, inside Tokyo Bay, Seto
Inland Sea etc. and if it is too large from the practical point of
view for the floating structure to be moored, such site should be
avoided for the installation. For example, the design condition of the tsunami at the inlet of
Tokyo Bay is as follows:
Height ---- 2.5 m
Period ---- 70 min