Infrastructure branch Making all the difference

The TBM operator carries out underground work such as excavation and support via traditional methods or with a TBM.

S/he builds and renovates underground tunnels (for railways, motorways and sanitation networks) undertaking manual and/or mechanical boring work to enable the construction of adits, wells and tunnels.  S/he carries out underground operations and earthworks on civil engineering projects and takes charge of extraction and support works, ensuring that rubble and debris are correctly evacuated. S/he works in a confined environment as part of a team, assisted by a crane.

The TBM operator carries out underground works according to one of two methods, according to project size and ground characteristics.  

  • Using traditional methods, he sinks the well, constructs and assembles support frames, excavates and digs wells and adits and carries up rubble with the help of cranes and skips, while progressively shielding the tunnel as work progresses.
  • With the help of a TBM he uses an erector, takes part in installing lining segments (supply) carries out annular void filling operations with mortar and takes part in laying rails.

Strict compliance with rules and safety instructions is necessary at all times, given the kind of operations undertaken and the environmental characteristics (dust, temperature, gas).

The TBM operator is methodical and rigorous, carrying out these various works according to the regulations in force. 

  • Salary

    The salary depends on the crane operator's qualifications and professional experience in the job.

  • Schedule

    The hours are usually regular (35 hours a week), but may vary according to project requirements.

  • Place of work

    The operator usually  works on a building or renovation site. These worksites are often remote, involving medium and/or long-term travel