• Publications
  • Influence
Thermal State and Human Comfort in Underground Mining
The human metabolism is accompanied by heat generation, with the body temperature remaining constant near 36.9°C and in contact with surrounding atmospheric temperature; people have cooler or hotterExpand
  • 6
  • 1
  • PDF
Prediction Of EDZ (Excavation Damaged Zone) From Explosive Detonation In Underground Openings
The prediction of damage to the rock mass is a very important factor to evaluate the quality of the excavation process in tunneling, so that it would allow the optimization of explosive chargesExpand
  • 5
  • 1
MATHEMATICAL MODELLING OF THERMAL STATE IN UNDERGROUND MINING
The effect of temperature in underground mines is related to the geothermal gradients of rocks overlying the mining excavation. This may exceed the standards of comfort for human beings to work in anExpand
  • 4
  • 1
Evaluation of elastic deformation energy in stone cutting of Portuguese marbles with a diamond saw
Synopsis A detailed analysis of the geomechanical behaviour in rock cutting with a diamond saw is provided to obtain a better understanding of the mechanisms involved in the process. The energy ofExpand
  • 7
  • PDF
TECHNOLOGICAL INNOVATIONS ON UNDERGROUND COAL GASIFICATION AND CO2 SEQUESTRATION
A brief description of the underground coal gasification (UCG) process, combined with the possibility of CO2 sequestration, is presented. Although nowadays there are very few active industrial UCGExpand
  • 7
  • PDF
Mine fleet cost evaluation - Dijkstra's optimized path
TLDR
The transport distance in a mining operation strongly influences a mine operation revenue and its operational cycle because it is a fundamental part of the total mining costs. Expand
  • 1
  • PDF
Assessment of natural attenuation of acid mine drainage pollutants in El Bierzo and Odiel basins: A case study
In the past, mining activities have generated major acid drainage sources, which usually carry dissolved metals that flow into the main rivers of the affected basins. The study looks at naturalExpand
  • 5
Optimization of room-and-pillar dimensions using automated numerical models
TLDR
This paper presents an optimization methodology for the geometric configuration of a room–and–pillar mining project, considering safety and operational restrictions while maximizing ore recovery. Expand
  • 3
Environmental Hazards Associated With Mining Activities in the Vicinity of Bolivian Poopó Lake
Hydrographically Bolivian Poopo Lake is located in the basin of Desaguadero River and it has over a dozen main tributary rivers and other smaller rivers with lower flow. The mine water discharge fromExpand
  • 2
Instabilidade geotécnica em aberturas subterrâneas profundas - caso estudo em minas de Portugal e Peru
RESUMO: As aberturas subterrâneas profundas sao realizadas geralmente nas exploracoes de minas, onde as tensoes e deformacoes sao de grande amplitude, provocando riscos de instabilidade e podendoExpand