Construction Design of temporary supporting structures and permanent technical areas of “Calmette” work. Construction Design of the permanent tunnel and the BIM modelling (Grasshopper + Tekla Structures) of the temporary supporting structures.

The Design consisted of the execution of a connection tunnel with two rails, of length 245m, with vaults and 

and internal diametral of 8.10m.

The new tunnel links the current tunnel, from the technical room located in the dead-end street of the current station “Mairie des Lilas”, to tue new station “Serge Gainsbourg”.