[Tunnel Analysis Programs] TUNA
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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.
Features
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
Circular
Rectangular
Horseshoe Shape
Liner Types
Steel Plate
Plain Concrete
Reinforced Concrete
Composite Integral Liner
Output Data
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