The present invention concerns a novel set of versatile construction elements, permitting, according to their various combinations, the production of more varied structures, from vertical or slanting retaining walls to columns with capitals and/or pedestals.
These elements consist essentially of hollow blocks each delimited by four walls in the shape of equal quarters of a circle, so disposed that they are convex, in which case the element is cylindrical, or concave, in which case the element is a curvilinear square, or possibly mixed. Preferably, the external wall of these elements comprises vertical channels, the function of which will be discussed further on. The material from which these elements are made is preferably colored concrete, as will also be discussed further on in connection with aesthetic aspects of the invention.
From a technical point of view, these elements are assembled in a ratio of one to four concave walls about an equal number of convex; thus, linear series formed from an alternating succession of convex and concave elements can be constructed. Such rows can then be superposed, either vertically or offset from one another the length of an embankment, to produce a vertical or slanted wall. In this latter case, the upper surface of each row remaining exposed, the elements may be filled with soil and play the role of flower beds. The rows in question may themselves be rectilinear, angular or arcuate so as to constitute walls having a corresponding configuration.
According to these various possibilities, a wall may also comprise a vertical portion and an upper portion that is offset to form flower bed, or also individual elements may be superposed to form columns, it being understood that in any case the various elements could be manufactured in various dimensions according to the combinations which will be used.
The invention will now be described with reference to the accompanying drawings, in which:
FIG. 1 shows in perspective the two basic elements according to the invention;
FIG. 1' shows in section various assemblies of these basic elements;
FIG. 2 shows the construction of a decorative vertical retaining wall; and
FIG. 3 shows the construction of a slanted retaining wall.
Referring first to FIGS. 1 and 1', it is seen that each element according to the invention is composed of four walls of equal quarter circles, either convex A, B, C, D, or concave A', B', C', D'. In the case of convex walls, the corresponding element 1 is a cylinder. In the case of concave walls, the corresponding element 2 has a curvilinear square section.
The equality of the quarter circles A-A'-B-B'-C-C'-D-D' permits associating them two-by-two, either linearly as shown, or angularly, as in 1-2-1', or in a curve, as in 2-1-2'.
Each element comprises vertical channels 3, which, between their decorative opposite extremities may serve to maintain a stack of identical elements by means of metallic rods housed in these channels. This is thus the case for the wall of FIG. 3 where rectilinear rows of elements 1-2-1-2 . . . are vertically stacked on one another, and rest generally on a foundation of reinforced concrete. These elements are filled with soil or possibly reinforced concrete and their inherent weight generally suffices to insure their steadiness. When needed, metallic rods 4 are placed in certain alignments of channels 3 to consolidate this wall.
Such a wall serves as a conventional retaining wall. If it is desired in addition to impart to it a decorative function, the upper row 5 of elements, filled with soil, can constitute a flower bed; the decorative effect is also enhanced by a supplementary row 6, offset with respect to the preceding row.
This mechanical and decorative dual function is exploited in the steep regions, where, as shown in FIG. 3, all these successive rows 7, 8, 9 . . . are offset and positioned against an embankment 10 so as to constitute a slanting wall serving at the same time as a decoration of the said embankment. Such an application may be exploited for the management of beaches, where imaginative effects may be added by the use of elements having different dimensions.
Generally speaking, these elements may be made from concrete, preferably coloured corresponding to the surrounding area, for example, ocher, reddish or white.
Besides the walls, decorative or purely functional, and the various enclosure means that can be produced with these elements, they may also be applied to the construction of columns with or without pedestals and capitals, or to any constructions such as support poles for basements.
It will be understood, according to the envisioned combinations, that elements having a different shape but corresponding to the same definition, for example comprising three convex faces and one concave, or alternatively one convex and one concave could always be interassembled along a quarter circle.