Essays about: "Measurement While Drilling"

Found 5 essays containing the words Measurement While Drilling.

  1. 1. Identification and strength classification of weakness zones in the Garpenberg mine based on measurement while drilling (MWD)

    University essay from Luleå tekniska universitet/Geoteknologi

    Author : Ioannis Peroulakis; [2022]
    Keywords : Drilling; MWD; Garpenberg; Mining; Geotechnics;

    Abstract : Boliden’s Garpenberg mine produces Zn-Pb-Ag(Cu-Au) using a sublevel stoping with pastefill mining method. The orebody is strongly affected by the existence of weakness zones mainly consisting of Talc Schist and Phlogopite Schist which affect the design, planning and production of the stope. READ MORE

  3. 2. 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

  4. 3. The influence of weakness zones on the tunnel stability based on investigations in Bodøtunnelen

    University essay from Luleå tekniska universitet/Geoteknologi

    Author : Viktor Renström; [2016]
    Keywords : Rock mechanics; Numerical modeling;

    Abstract : When planning for a tunnel, the ground conditions in which the tunnel is going to be excavated through will be investigated to different extent. Lack of relevant pre-investigation data or misinterpretations of the available data can cause both economical and/or unexpected stability problems. READ MORE

  5. 4. Water Well Investigations in the Nampula Province, Mozambique - A Minor Field Study

    University essay from Lunds universitet/Teknisk geologi; Lunds universitet/Ekosystemteknik (CI)

    Author : Elin Olsson; [2016]
    Keywords : Geophysical borehole logging; resistivity; natural gamma radiation; Nampula; Mozambique; Technology and Engineering;

    Abstract : Access to clean water for drinking and sanitation is a human right. Today water scarcity is a large problem and inequality in access to safe water is a striking truth. READ MORE

  6. 5. Investigation of residual stresses generation in aluminum flywheel

    University essay from JTH. Forskningsområde Datorstödd konstruktion; JTH, Maskinteknik

    Author : Kimon Afsaridis; [2009]
    Keywords : High Pressure Die Casting; Residual Stresses; Hole Drilling Method; Aluminium flywheel; Compressive stresses; Tensile stresses; Distortion; Convergence; Feeding;

    Abstract : Quality of the castings is affected by several factors which the designer should take into consideration during the product development process. Although residual stress is one of those, it is often not considered in practical computations. Hence residual stresses are one of the forgotten areas in designing of machine parts. READ MORE