List of products by author: E. V. Silva Espiña

• Read more

  0,00 €

  Singular portals - Yanango Tunnel

  Abstract: The excavation and reinforcement of the portals is the first phase in the construction of tunnels. Both the topography as well as the geology of the area should be taken into consideration when designing the portals, addressing a series of specific problems different to that of the excavation of the tunnels. The construction of the portals in mountainous environments, with steep slopes and...

  0,00 €

  Add to cart