Search for dissertations about: "OPEN PIT"

Showing result 1 - 5 of 28 swedish dissertations containing the words OPEN PIT.

  2. 1. Pit lake water quality and hydrology : Insights from case studies and modelling of pit lakes in northern Sweden

    Author : Oscar Paulsson; Anders Widerlund; Lars Lövgren; Adam P. Jarvis; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tillämpad geokemi; Applied Geochemistry;

    Abstract : As extraction techniques are improving an increased number of low grade deposits can be economically mined. However, this also means that the number of open pit mines will increase and as a result the number of pit lakes as well. READ MORE

  4. 2. On the Operational Efficiency in Open Pit Mines

    Author : Ali Beyglou; Håkan Schunnesson; Pablo Segarra; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Abstract : Open pit mines constitute more than half of global minerals production. Yet most of the large, high-grade, and close to the surface deposits have been depleted or are currently in production. Besides, volatility in commodity prices and stringent environmental regulations limit the up-scaling expansions in large open pits. READ MORE

  5. 3. Mathematical Optimization Models and Methods for Open-Pit Mining

    Author : Henry Amankwah; Torbjörn Larsson; Björn Textorius; Alexandra Newman; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Abstract : Open-pit mining is an operation in which blocks from the ground are dug to extract the ore contained in them, and in this process a deeper and deeper pit is formed until the mining operation ends. Mining is often a highly complex industrial operation, with respect to both technological and planning aspects. READ MORE

  6. 4. Utilisation of measurement while drilling to optimise blasting in large open pit mining

    Author : Helena Turtola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gruv- och Berganläggningsteknik; Mining and Rock Engineering;

    Abstract : The subject of this thesis is the utilisation of measurement while drilling to optimise blasting in large open pit mines. In Boliden´s open pit mine, Aitik drilling and blasting is a substantial part of the cost. An optimisation of drilling and blasting can therefor give large annual savings. READ MORE

  7. 5. Effectiveness of reclamation by backfilling and sealing at Kimheden open-pit mine, northern Sweden

    Author : Lucile Villain; Erik Carlsson; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Abstract : Reclamation of mine sites is a very recent concept on the scale of mining history. It involves the prevention or mitigation of the environmental impacts from mining, and the establishment of sustainable post-mining uses of the land. READ MORE