| 摘要 |
The prefabricated cassetted element made of reinforced concrete, used for the protection or support of slopes of ways of communication, is characterised in that it has two ribs [1] shaped as the letter U, one superior and another inferior with opposite directions, separated by a median horizontal wall [2], with a parallelepipedal void [a] located at the centre of the prefabricated element, mounted in check, so that the interior lateral faces [4] of the lower rib [1] of the prefabricated element which is dismantled, to superpose on the interior lateral faces [4] of the superior rib [1] of the adjacent supporting prefabricated elements, resulting a double blockage of these, both toward the exterior of the supporting work and also perpendicular on this.
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