Method for constructing formwork for guide walls

Abstract

The invention relates to a method for constructing formwork for guide walls to create secant piles in the ground and cylindrical cores for their implementation. The method comprises the following steps: excavations are carried out on the ground surface, said excavations having a bottom and two opposing sides; a plurality of cylindrical cores (28) cut from honeycomb cardboard panels and having two opposing cylindrical surfaces (30, 32) are provided, said two cylindrical surfaces being defined by parallel generatrices G; the cylindrical cores (28) are erected on said bottom of said excavations, in line with one another, substantially equidistant from said two opposing sides; concrete is poured into said excavations on either side of the erected cylindrical cores (28); and, said cylindrical cores (28) are extracted after the concrete has hardened to release two opposing guide walls.Figure to be published with the abbreviation: Fig. 3.