| 摘要 |
<p>1496830 Walls C CHIAVES 27 June 1975 [1 July 1974] 27401/75 Heading E1H A panel unit for an embankment structure comprises a reinforced concrete panel 6, and a reinforced concrete brace 3 hinged to the panel at 10 so that it can lie flat against the panel for transportion, and having a concave side facing away from the panel. In use, a foundation 5 is cast, the units are erected on the foundation, and then a reinforced base is cast to form a unitary structure.</p> |
