Building block for underwater structure is made from four circular solid e.g. reinforced concrete panels with central apertures to allow water to flow through

摘要

#CMT# #/CMT# The building block (1) is made from four solid circular panels, made e.g. from concrete and optionally reinforced, having slightly conical surfaces and joined together so they leave a central inner cavity. At least two of the panels in each block have circular central apertures (6) that allow water to flow through the central cavity, each aperture having an area equivalent to about a third of the area of the panel. #CMT#USE : #/CMT# Building underwater structures such as barriers protecting banks and jetties, or to act as breakwaters. #CMT#ADVANTAGE : #/CMT# The structure has apertures and inner cavities that provide a habitat for plants and creatures. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of the building block. 1 : Building block 2, 3, 4, 5 : Circular panels 6 : Central aperture 7 : Outer surface.