top of page


TUNA is a fully automated computer program developed for TUNnel Analysis. The program is written by the professional engineer with more than 30 years of experience in tunnel analysis.

TUNA employs a static, two-dimensional, linear elastic finite element method. Pre- and post-processors are built-in so that only the physical geometries and material properties associated with a proposed tunnel are required as input and graphical otput can be obtained directly.

Software Requirements

  • Windows 64 Bit Operating System

  • Intel Pentinum 4 or AMD Processor

  • 4 GB Ram with 30 GB Free Space in Drive C

  • SVGA Monitor


  • Liner-medium interaction

  • English and Metric units

  • Excavation and live loads

  • Lined and unlined tunnels

  • Shallow and deep buried tunnels

  • Multi-layered geological medium

  • Tunnel Shapes
    Horseshoe Shape

  • Liner Types
    Steel Plate
    Plain Concrete
    Reinforced Concrete
    Composite Integral Liner


Following graphical output can be displayed on screen or printed through hardcopy device:

  • Tunnel deformed shape

  • Principal stress in soil/rock

  • Stresses and strains in the reinforcing bars

  • Bending moment, thrust, extreme fiber stresses and strains in the liner

bottom of page