The purpose of this undertaking is to carry out a geotechnical campaign as part of the construction of the Tubize road bypass.

The geotechnical campaign to be carried out is detailed below for the investigation site:

• 21 destructive boreholes with pressiometric tests rated P1 to P21;

• 3 reconnaissance boreholes with unworked samples noted FA1 to FA3;

• 16 reconnaissance boreholes with reworked sampling rated FB1 to FB16;

• Oedometry tests;

• 12 piezometric equipment from the aforementioned boreholes;

• 6 permeability measurement tests rated I1 to I6.