Essays about: "rock excavation"

Showing result 1 - 5 of 39 essays containing the words rock excavation.

  1. 1. Rock Wedge Stability Assessment : A Comparative Analysis of Limit Equilibrium and Discrete Element Methods

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

    Author : Vilma Nordh; [2024]
    Keywords : Numerical modelling; wedge stability; 3DEC; UnWedge;

    Abstract : Rock wedge stability is a common concern in underground excavations. Since the wedge stability influences the support design, it is important to use a wedge stability analysis method that can capture factors like excavation geometry, joint parameters and properties, rock mass properties, rock cover, and stress field as accurately as possible. READ MORE

  3. 2. Evaluation of structurally controlled rockfall hazard for underground excavations in seismically active areas of the Kiirunavaara mine

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

    Author : Manuel Alberto Fuentes Espinoza; [2023]
    Keywords : Structurally controlled rockfalls; rockfalls due to seismic shaking; sublevel caving; fork layout; Unwedge; wedge analysis; deterministic analysis; probabilistic analysis;

    Abstract : Sublevel caving operations at great depths are subjected both to large stress concentrations that are redistributed as the mining front progresses and to mining-induced seismicity. This is the case for Kiirunavaara mine, Sweden’s largest underground mine. READ MORE

  4. 3. Simulation Methods at Epiroc within Underground Rock Excavation : Simuleringsmetoder vid Epiroc inom underjordsdivisionen.

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Simon Granberg; [2022]
    Keywords : Simulation methods; Simulation tools; Lean; Improvements; Simuleringsmetoder; Simuleringsverktyg; Lean; Förbättringsarbete;

    Abstract : Epiroc Underground Rock Excavation is a manufacturer of machines that operate in underground mines. The machines are complex and advanced with different functions and systems that interact with each other. Simulations provides a picture of machine design, its functions and how the real-world result would be. READ MORE

  5. 4. Modelling of Fluid Flow and Contaminant Transport in Fractured Rock : Case Study

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Ebba Pegestam; [2022]
    Keywords : Contaminant transport; Discrete Fracture Network; Geology; Geohydrology; Groundwater transport; Fracture; Drinking water; Contamination; Föroreningar; flödestransport; spricknätverk; geologi; geohydrologi; grundvattentransport; sprickor; dricksvatten;

    Abstract : Drinking water contamination is a big concern in Sweden and is commonly traced back to being waste from former manufacturing industrial sites. Pollutants in the topsoil can be remediated by several techniques, such as decontamination or excavation but the toxins already enclosed in the bedrock cannot be treated the same and is harder to track possible contaminant pathways. READ MORE

  6. 5. Sensor Simulation for Autonomous Mining Vehicles

    University essay from KTH/Fysik

    Author : Martin Björk; [2022]
    Keywords : sensor simulation; autonomous vehicles; simulation; visualisation; lidar; sensorsimulering; autonoma fordon; simulering; visualisering; lidar;

    Abstract : The mining industry uses vehicles for a wide range of applications, including excavation and transportation of rock and soil. Currently, this requires a lot of human labour, mainly drivers, but efforts are being made to increase automation, e.g. using autonomous vehicles. READ MORE