Eng. Alexander Kalapsazov is taking over the position of Executive Director of BS Konstructia. He has 20 years of experience within the...

The air pollution is expected to be reduced by over 11 thousand tons per year by the exploitation of Metro Line 3. The third metro line...

In our sequence of articles dedicated to the basic types of tunnel construction methods utilized in the Sofia Metro Lines, we have...

In the series devoted to the most popular technologies for underground construction, we have already wrote about the Milan method and the...

Modern design and construction of tunnels, providing flexibility and safety- these are the main characteristics of the Austrian tunneling...

In a series of upcoming blog posts we are going to tell you more about the most popular technologies used in the underground construction...