沉箱放置作業
caisson dock launching(沉箱渠下水)
caisson launching(沉箱下水)
end process method(端進法安放)
floating dock launching(浮塢下水)
insert process method(嵌入法安放)
jump process method(跳島式安放)
lifting platform launching(升降台下水法)
slip-way launching(滑道下水)