FILTERING WALL OF A LOST FORMWORK, MEANS FOR MANUFACTURING THE FILTERING WALL, METHOD OF MANUFACTURING THE FILTERING WALL AND FORMWORK EQUIPPED WITH THE FILTERING WALL

摘要

P The invention relates to a filtering wall intended for a lost formwork comprising a trellis (2) formed by assembling flexible warp and weft threads, this trellis being stretched over a so-called non-deformable structure. This wall is characterized by what: - on the one hand, some of the warp threads are more resistant than the other warp threads, the tension of the trellis (2) then being created by pulling only on these more resistant warp threads and - on the other hand , it comprises means (3,4,5) for maintaining the tension associating the son of more resistant chains with the non-deformable structure, these means (3,4,5) for maintaining a tension defining a larger mesh than that resulting from the initial crossing of the warp and weft threads. /P