Sökning: "Underground mining"

Visar resultat 1 - 5 av 69 avhandlingar innehållade orden Underground mining.

  1. 1. Short-term Underground Mine Scheduling : Constraint Programming in an Industrial Application

    Författare :Max Åstrand; Mikael Johansson; Christian Schulte; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scheduling; mining; mine; underground; constraint programming; cp; large neighborhood search; lns; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The operational performance of an underground mine depends critically on how the production is scheduled. Increasingly advanced methods are used to create optimized long-term plans, and simultaneously the actual excavation is getting more and more automated. LÄS MER

  2. 2. Short-term Underground Mine Scheduling : An Industrial Application of Constraint Programming

    Författare :Max Åstrand; Mikael Johansson; Mats Carlsson; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scheduling; mining; underground mines; constraint programming; large neighborhood search; korttidsplanering; gruvdrift; underjordsgruvor; villkorsprogrammering; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : The mining industry is facing a surge in automation in the pursuit of safe and profitable operations. As the excavation process is increasingly automated, today's mining companies seek to optimize the coordination of the now automated mining activities. LÄS MER

  3. 3. Saving lives during major underground mining incidents : becoming prepared for a collaborative response

    Författare :Sofia Karlsson; Magnus Hultin; Britt-Inger Saveman; Lina Gyllencreutz; Erna Danielsson; Umeå universitet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Major incidents; preparedness; collaboration; underground mine fires; emergency medical service; rescue service; mining company; full-scale exercises; collaboration project;

    Sammanfattning : Background: Major incidents in underground mines are uncommon, but they can have severe consequences. In Sweden, the municipal rescue service and the regional emergency medical service (EMS) are dispatched to mining incidents, and together with the privately owned/state owned mineral and metalliferous mining company they perform a rescue operation. LÄS MER

  4. 4. Load-Haul-Dump operations in underground mines

    Författare :Bartlomiej Skawina; Jenny Greberg; Abubkary Salama; Oliver Langefeld; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LHD; DES; simulation; underground mine; energy consumption; ventilation requirements; orepass loss; production scheduling; process control; Mining and Rock Engineering; Gruv- och berganläggningsteknik;

    Sammanfattning : The research presented in this thesis addresses several aspects of loading operations inunderground mines, in particular tools and equipment selection. It also addresses the flexibilityof the fleet when subject to substantial disturbances, such as ore pass loss, and proposes integration of the scheduling system with discrete event simulation. LÄS MER

  5. 5. The effect of changing stresses on the stability of underground openings : a study of the behavior of underground tunnels

    Författare :Peter Lundman; Luleå tekniska universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mining and Rock Engineering; Gruv- och Berganläggningsteknik;

    Sammanfattning : .... LÄS MER