El Teniente Division of CODELCO is conducting a pre-feasibility engineering evaluation of Rajo Sur project in Chile. This project involves construction of an open pit to mine a copper deposit near the southern border of the caving subsidence crater high in ...

<p>This paper describes the methods that can be used to optimize the design of tunnels using a combination of reinforcement and support methods. Particular attention is given to tunnels in very weak rock or soil in which large deformations can occur. Two case ...

<p>In this paper in order to overcome the difficulty of finding an acceptable equivalent friction angle and cohesive strength for a rock mass the program called "RocLab" is introduced, as a convenient means of solving and plotting the equations of Hoek - Brown ...