Today I have been in Engineer Legarreta’s speech about an hydroelectric dam in the Lérez River, in the South Galicia. Legarreta is one of the legends of my School (it’s said he made all the problems of two volumes of Beer&Johnston’s Vector Mechanics for Engineers before begin his universitary studies ), he graduated with the first class in 1996, and he’s an expert in geotechnical works.

He remembered us the importance of geotechnical part of civil engineering works. Buildings, roads, dams, ports… they all depend of a perfect execution of the soil.

A doubt about the tunnel execution arouse on me: they could only made 2 of the 5 drills they wanted because there were some archaelogical remains on the surface. I wanted to ask him how they solved this problem. But my school mates didn’t allow: they began to speak high, so nobody could ask anything. They were more worried about the assistance certificate and their stomach. Their knowledgement is trapped in a tunnel too.