Downloading TUNREN 1.0.5 from our website was free. TunRen.exe or _1aea45b3.exe are the default file names to indicate the TUNREN installer. This free software is a product of TERRASOL. The most popular version among TUNREN users is 1.0. TUNREN lies within Photo & Graphics Tools, more precisely 3D Design. You can run this free PC software on Windows XP/Vista/7/8/10/11 32-bit.
From the developer:
TUNREN is a tool for tunnel design including 2 modules:
- Lateral support: Convergence/Confinement method
- Tunnel face behavior: Extrusion method (developped by Mr Henry WONG, license CNRS-ENTPE)
CONVERGENCE/CONFINEMENT method Classical AFTES methods, taking into account different support types (concrete, arches, bolts).
You may want to check out more software, such as graphite or Drawing Register Professional, which might be similar to TUNREN.