(11) EP 3 933 114 Al
(43) 05.01.2022 Bulletin 2022/01
(57) A method of constructing an underwater concrete block structure includes assembling a plurality of concrete blocks into a concrete block assembly, forming a drilled borehole in the underwater ground under a concrete hole of the concrete block assembly, and forming a concrete column in the concrete hole and the drilled borehole, thereby greatly increasing the stability of the underwater concrete block structure.
(71) Yujoo Co., Ltd. Gijang-gun, Busan 46073 (KR)
(84) AL AT BE BG CH CY CZ DE DK EE ES Fl FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR, Designated Extension States: BA ME, Designated Validation States: KH MA MD TN