Dentellada is the selected company to develop the work of cutting and demolition in the tunnels of Pajares ( located between León and Asturias). This project consist of link the spanish capital with the north of Spain across the plateau using a high speeed railway, called AVE.

The works started with the first stage that consist of cutting pieces of concrete ( 4m x4 m dimensions) The use of wall saw and demolition robot ( brokk 330) are planned for the second stage of the project.