Tunnels
CESAR is a calculation software enabling modelling and analysis of geotechnical problems. Proven, powerful and user-friendly, it covers a wide scope of soil and rock mechanics applications (deformation, stability...). It is a valuable tool for geotechnical engineers for embankment, excavation, foundation or tunnel studies, and more.
Conventional method
The user will easily produce tunnel design projects by the Conventional Method (or New Austrian Tunneling Method, NATM, or Sequential Excavation Method, SEM). The complete set of CAD tools in CESAR 2D and CESAR 3D allows unlimited types of sketches of the tunnel. The detailed sequence of ground excavation and the activation of the structural components of the final project (shotcrete, final lining and station infrastructure) can be modelled using specific and intuitive tools (excavation forces, long-term effects on the concrete…).
Design of a tunnel section with NATM
Vertical displacements induced by 3D tunnelling in urban area
