Home News Products Download Price/Order Contact Company


back1.jpg (4230 bytes)

Linear Tunnel Analysis Program

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.

gTNUA1.jpg (26827 bytes)


  • 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

Output Data

gTNUA2.jpg (37147 bytes)

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

back1.jpg (4230 bytes)

ęcopyright Comtec Research 1998, all rights reserved