| 摘要 |
<p>The method comprises the following steps: installing vertically on the bottom (3) a sunk formwork comprised of prefabricated elements and including two parallel walls (5a, 5b) defining between each other a space (6), at least one of the walls being a self-supporting wall comprised of a plate perforated throughout its surface; and filling said space (6) with concrete laden with sand and coarse aggregates, the smallest aggregates having dimensions slightly larger than the openings of the perforated plate (5a, 5b). The concrete density causes the evacuation, through the openings, of excess water and fluid wherein the formwork is immersed, and causes the hardening of the concrete.</p> |
