Essays about: "rock mass characterization and classification"

Found 3 essays containing the words rock mass characterization and classification.

  1. 1. Systematic errors in the characterization of rock mass quality for tunnels : a comparative analysis between core and tunnel mapping

    University essay from KTH/Jord- och bergmekanik

    Author : María Domingo Sabugo; [2018]
    Keywords : Rock mass classification; scale effect; RMR; tunnel mapping; borehole mapp ing; systematic error;

    Abstract : This thesis analyzes the potential systematic errorin the characterization of the rock mass quality in borehole and tunnel mapping. The difference when assessing the rock mass quality refers to the fact that the characterization performed on drilled rock cores are commonly done on-meter length, while the tunnel section can be up to 20-25 m wide. READ MORE

  2. 2. Evaluation of the differences in characterization and classification of the rock mass quality : A comparison between pre-investigation, engineering geological forecast and tunnel mapping in the Northern Link project and the Cityline project

    University essay from KTH/Jord- och bergmekanik

    Author : Mehdi Benhalima; [2016]
    Keywords : Characterization; classification; rock mass quality; engineering geological forecast; tunnel mapping; discontinuities; Q-system; Northern Link;

    Abstract : In the construction of a tunnel, the characterization of the rock mass is performed in three different steps, in the pre-investigations, in the engineering geological forecast and in the tunnel mapping during construction. There has in previous work been observed that discrepancies exist between the results from these different steps, with a tendency to assign poorer rock mass quality in the tunnel mapping than in the pre-investigations and in the engineering geological forecast. READ MORE

  3. 3. Evaluation of methods for rock mass characterization and design of rock slopes in crystalline rock

    University essay from KTH/Jord- och bergmekanik

    Author : Johanna Gottlander; []
    Keywords : Geology; rock mechanics; rock slope stability in fractured crystalline rock; rock mass characterization and classification; rock slope design; slope failure;

    Abstract : Construction of rock slopes is needed in many civil work projects. It is for example very common in road and railway cuts, but other applications include excavation for tunneling or building foundations, where perhaps sensitive constructions are present in the immediate vicinity. READ MORE