Sökning: "LHD"

Visar resultat 1 - 5 av 13 uppsatser innehållade ordet LHD.

  1. 1. Optimization of Path and Trajectory for Underground Mining Machines

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Farid Marouki; [2023]
    Nyckelord :;

    Sammanfattning : Underground mining machines play a critical role in the mining industry, enablingexcavation of valuable minerals from subterranean deposits. The efficiency of mining op-erations relies heavily on the effectiveness of these machines. LÄS MER

  3. 2. Factors that influence an LHD operation: A Review

    Master-uppsats, Luleå tekniska universitet/Geoteknologi

    Författare :Ivan Ricardo Marin Rodriguez; [2023]
    Nyckelord :LHD; LHD Operation; LHD Design; Bucket Design; Loading Operation; LHD Productivity; Fragmentation; LHD Operator;

    Sammanfattning : As an important sector of the global economy, underground mining serves as the foundation for the economies of many nations. It involves the extraction of precious minerals, ores, and other geological elements. LÄS MER

  4. 3. Load Weighing for Underground Mining Machines

    Master-uppsats, Linköpings universitet/Institutionen för systemteknik

    Författare :Axel Ståhlbom; [2022]
    Nyckelord :Kalman filter; EKF; load weiging; LHD; mining; load estimation; mass estimation;

    Sammanfattning : The goal of this work was to calculate the mass in the bucket of a underground loaderfrom pressure data in the cylinders. Three different approaches to using a Kalman filter toestimate the loaded mass were tried and evaluated in MATLAB simulations. LÄS MER

  5. 4. Rock Strength Testing of Drill Core Samples From Kiirunavaara Below Level 1365

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Giorgios Doulamis; [2022]
    Nyckelord :Kiirunavaara; Point Load test; Leeb hardness test; intact rock strength; correlation factor;

    Sammanfattning : The geotechnical parameters of the different lithologies are of great importance regarding mining, infrastructures development and safety. The main aims of this thesis project are the evaluation of the previously acquired point load tests (PLT) data and the acquisition of a larger set for the various lithologies and alterations. LÄS MER

  7. 5. Classication framework formonitoring calibration ofautonomous waist-actuated minevehicles

    M1-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Per Landström; John Sandström; [2020]
    Nyckelord :SVM; NDT; machine learning; scan matching; hinge angle sensor; calibration detection;

    Sammanfattning : For autonomous mine vehicles that perform the ”load-haul-dump” (LHD) cycle to operate properly, calibration of the sensors they rely on is crucial. The LHD cycle refers to a vehicle that loads material, hauls the material along a route and dumps it in an extraction point. LÄS MER