Prefabricated panel for use in constructing walls e.g. retaining walls for bridge abutments, has concrete laminate of uneven cross section with shorter upper and longer lower parts and leaning control surfaces

摘要

The prefabricated panel consists of a concrete laminate of consistent width and uneven cross section . The uneven cross section defines a shorter upper part and a longer lower part and control surfaces leaned towards the upper and lower parts.