Speaking at the 14th Iran International Tunnel Conference in Tehran on Tuesday, Ali Akbar Mehrabian said digging tunnels has been important for humanity since a long ago but, today, its significance has doubled for the Ministry of Energy, reported Tasnim news agency.
The minister noted that Iranians have more than 3,000 years of fruitful experience in designing and constructing tunnels.
Mehrabian pointed to the considerable progress of tunnel engineering sciences in the country, and added that various projects have been put into operation in this field in various countries by expert Iranian engineers.
Iran has exported many techno-engineering services to Iraq, Sri Lanka and Tajikistan, the energy minister continued.
Mehrabian pointed to the significance of taking advantage of the technical know-how of knowledge-based and technological companies for advancing the tunnel drilling projects and stated that it could reduce the cost of advancing the projects and increase the speed of activities.