Switzerland – Construction work – Ausbau Lötschberg-Basistunnel - VL14 Vorbereitung IP Mitholz

As part of the expansion of the Lötschberg Base Tunnel, a contractor is sought for the execution of further preparatory works at the installation site (IP) Mitholz. The IP Mitholz will serve as the main installation site for the contractor of the main lot 01 (LBT main structure). To create the necessary conditions, the contractor sought in the present contract must, in particular, carry out the following works: * Creation of a base seal area (large-area base seal with asphalt pavement and sealing of slopes with an inclination of up to 2:3) * Construction of the plant pipe systems for the drainage of the area and the discharge of the resulting meteorological and seepage water * Planning and setup of a retention system * Creation of further plant pipes and cable duct blocks