Essays about: "rock mass quality"

Showing result 1 - 5 of 17 essays containing the words rock mass quality.

  1. 1. Adapted data collection in field utilizing RMR and the Q-system

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Amanda Olsson; [2024]
    Keywords : Rock mass classification; Q-slope; SMR; Slope stability;

    Abstract : The focus on slope stability has increased rapidly in Norway over the last years due to several unwanted landslides. In Norway, the most used method today to classify the rock mass and to determine the required reinforcement, is the Q-system. In addition to that the RMR method is also a commonly used method. READ MORE

  3. 2. Grouting Design Considering Different Geological Conditions : Grout evaluation for the extension of the Blue Metro Line

    University essay from KTH/Jord- och bergmekanik

    Author : Roaa Al Omari; Yasmeen Alali; [2021]
    Keywords : ;

    Abstract : This thesis forms the basis for a new documented experience of grouting design and work in the extension of the blue metro line in Stockholm. It includes documentation of the grouting design based on theoretical basis, stop criteria and fan geometries for favorable and unfavorable geological conditions. READ MORE

  4. 3. Tunnel Seismic Prediction in Stockholm Bypass

    University essay from KTH/Jord- och bergmekanik

    Author : Matilda Wessén; Janita Österberg; [2021]
    Keywords : Tunnel Seismic Prediction; TSP; Seismic waves; Stockholm Bypass; Geological mapping; Measurement While Drilling; Tunnel Seismic Prediction; TSP; Seismiska vågor; Förbifart Stockholm; Bergkartering; Measurement While Drilling;

    Abstract : Tunnel Seismic Prediction (TSP) is a geophysical investigation method used to predict the rock conditions ahead of the tunnel face. The method has been used in different types of rock and rock conditions. READ MORE

  5. 4. Increased leaching of metals as a result of foundation work

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Emmy Mattisson; [2018]
    Keywords : Principal components analysis; Modified double mass analysis; Geochemistry; Sulphide bedrock; Remediation methods; Surface water pollution;

    Abstract : Heavy metal contamination in the environment is a global issue that is likely to increase in the future. This report investigates a construction area in which increased concentrations of the heavy metals cadmium, cobalt, copper, nickel and zinc and a decreased pH-value has been observed in the surface water recipient. READ MORE

  6. 5. 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