GZ Welcomes Penaud as Senior Tunnel Engineer

By TBM Staff May 27, 2026

Gall Zeidler Consultants announced that Guillaume Penaud is the firm’s new new Senior Tunnel Engineer.

Penaud is a geotechnical and tunneling engineer specializing in urban underground works, with experience spanning geotechnical design, field observations, construction supervision, and oversight for both TBM and conventional tunneling (NATM/SEM). He has also worked extensively with instrumentation and monitoring systems, results analysis, and asset protection planning.

His project experience includes major infrastructure works such as Grand Paris Express, EOLE in Paris, and the Copenhagen Metro.

Tags: Gall Zeidler Consultants

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GZ Welcomes Penaud as Senior Tunnel Engineer

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