<p>Current advances in science, followed by development of excavation equipments technology resulted in growth of tunnelling projects for different purposes. In spite of conducting exploratory studies prior to these projects, in some cases due to of impassable ...

<p>In this paper detailed engineering geological characterization and performance observations were carried out at the site of the Kallat tunnel in the north east of Iran. Numerical modeling studies (FEM and DEM) based on mapped field data and laboratory data, ...