a reinforcement 17 embedded in a facing element 4 and the lower segment of the reinforcement 17 embedded in the facing element 4 located just beneath it will be appreciated that within the context of the present invention the possible arrangements of the reinforcing strips in the gap separating the pre existing wall 1 from the facing 3 are very numerous likewise all kinds of facings may be used u2014 prefabricated elements in the form of slabs blocks etc wire mesh window box etc moreover it is perfectly conceivable to construct the facing 3 by casting it in situ from special cements or concrete taking care to connect the stabilizing elements 7 17 thereto the three dimensional configurations adopted by the stabilizing elements within the fill 5 may also be highly varied the patterns may be in a form other than a zigzag or a comb elements 6 16 and 7 17 may lie in the same horizontal plane preferably avoiding mutual contacts in the common part z u2032 the ratio of the density of elements 6 16 and that of the elements 7 17 may vary etc to construct a work according to the invention the procedure may for example be as follows a the anchoring members 8 are installed on the front face of the mass to be covered b some of the facing elements 4 are put into position so that the fill material can.