Presents 133 papers divided into 20 technical sessions and includes contributions from all divisions of the tunneling industry plus risk management and best contract practices. The selected papers provide a source of reference for contractors and engineers in the future.

Every two years, industry leaders and practitioners from around the world gather at the Rapid Excavation and Tunneling Conference (RETC) to learn about the most recent advances and breakthroughs in this unique field. This book includes the full text of 133 papers presented at the 2023 conference.