Essays about: "caving"

Found 5 essays containing the word caving.

  1. 1. 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

  3. 2. Autonomous Underwater Inspection of Caving Systems

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Filip Persson; [2022]
    Keywords : ;

    Abstract : This thesis aims to create and design a way for a unmanned underwater vehicle to navigateunderwater without the need for human interaction in order to carry out inspections of underwaterstructures or caving systems in a safe and effective manner. The inspection of underwater structuresor underwater caving systems is a difficult and expensive process. READ MORE

  4. 3. Stress dependent flow behavior in sublevel caving mines

    University essay from KTH/Jord- och bergmekanik

    Author : Linde Mattsson; [2022]
    Keywords : level caving; Material Flow; Mining; Discrete element modeling.;

    Abstract : Sublevel caving is an underground mass mining method that utilizes the gravity-induced material flow for ore extraction. The granular flowbehavior is one of the main phenomena describing this mining method’s efficiency; therefore, a good understanding of the flow behavior is essential. READ MORE

  5. 4. Evaluation of the rock support system subjected to dynamic loads in Kiirunavaara

    University essay from Luleå tekniska universitet/Geoteknologi

    Author : Simon Krekula; [2017]
    Keywords : Rock mechanics; Rockburst; Seismicity;

    Abstract : LKAB’s underground mine in Kiirunavaara has experienced an increasing seismic activity the last ten years. This seismic activity is caused by the stress redistribution resulting from the mining method of large-scale sublevel caving. The energy from the seismic events propagate in the rock mass as seismic waves. READ MORE

  6. 5. Borehole Dimension Impact on LHD Operation in Malmberget Mine

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

    Author : Markus Danielsson; [2016]
    Keywords : LHD; sublevel caving; fragmentation;

    Abstract : Sublevel caving is a highly mechanizable mass mining method normally utilized in large, steeply dipping orebodies. The fragmented ore flows freely, aided by gravity, down to the drawpoint while the surrounding waste rock caves in due to induced stresses and gravity. READ MORE