ABSTRACT
In a rapid developing economies like India, various underground metro tunnels are constructed in a fast pace to meet the commuting needs of huge Indian population. The recent terrorist strikes in the subways of various countries like Moscow (2010 & 2004); London (2005) and Madrid (2004) questioned the safety of the tunnels under internal blast loading. An explosion in these tunnels will result in a huge loss of lives and properties, and also cause huge traffic disruptions. Considering these intense threats, there is a need to address this problem, and overcome the complications involved in the analysis of the tunnels subjected to internal blast loading.
