var fDesc=new Array(); fDesc[0] = "Tunnel Assistant is a unique software built for the empirical design of underground openings.

Get expert advice in three main steps:
-Design
-Consult
-Calculate

Design according to experts recommendations. Define method of design and actions to take place for the stability of the opening. Evaluate the fitness of design method based on underground conditions encountered.
Consult using rock mass classification systems and artificial intelligence (AI). Stability of underground openings is examined with the Q system, RMR system, RMi system and the GSI - Hoek and Brown Criterion. An AI module is used to assess stability using an expert system technique, fuzzy logic, neural networks and statistical multiple regression methods. Results are compared to a database of constructed underground works.
Calculate in situ and tangential stresses around opening, estimate rock mass performance, define support requirements."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }