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0 HitsProducts 25 HitsCOMSOL Blog 4 HitsApplication Gallery 10 HitsUser Story Gallery 4 HitsVideo Gallery 0 HitsKnowledge Base 147 HitsTechnical Papers and Presentations 3 HitsCertified Consultants 0 HitsMultiphysics Cyclopedia 0 HitsEvent Calendar 0 HitsCareers 0 HitsLearning Center
The mining industry pre-dates sophisticated simulation software and the computers it runs on by thousands of years. As an essential modern industry, however, the technical and analytical capabilities offered by AMPHOS 21, a COMSOL Certified Consultant, are critical for both understanding and optimizing mine operations. Recently, we sponsored a webinar together with NASA Tech Briefs on “Mining and Hydrogeology: Porous Media Flow Simulations with COMSOL”, featuring environmental consultants Jorge Molinero and Elena Abarca from AMPHOS 21.
COMSOL Blog -
www.comsol.com/blogs/porous-media-flow-simulations-mining-industry-amphos ...
The block caving mine is considered by the mining industry as one of the natural replacements of the current open cut mines in the near future. Mudrush is a sudden inflow of a sort mud ore into underground mining facilities. It may cause harm to people and equipment, production delays, dilution and mine closure.
The purpose of this numerical investigation is to obtain a more complete understanding about the permeability in fragmented materials and its applications to underground mining using COMSOL Multiphysics® software.
Technical Papers and Presentations -
www.comsol.com/paper/27232
The finite element mesh was generated for the whole hydrological basin, highly refined in the mine vicinities, in order to properly adapt the open pit geometry (Figure 2). Hydrogeological modeling with COMSOL Multiphysics is a powerful tool for mine dewatering optimization and prediction of possible environmental impacts. The methodology presented here allows integrating geomorphological, geological, hydrogeological and mine engineering information in an optimal way.
Technical Papers and Presentations -
www.comsol.com/paper/13230
Some of the present metallic ores mines are located in areas formed by a heterogeneous fractured massif where groundwater flows preferentially through fractures.
Underground mining in these zones can cause impacts in streams, lakes and change the natural water balance of the watersheds, leading to conflicts between traditional uses of water and the mining activity.
Technical Papers and Presentations -
www.comsol.com/paper/15482
Most of mining works, either on the surface or in the underground, demand continuous groundwater pumping in order to operate under dry conditions. When the mining activity stops, dewatering also stops and mining facilities begin to flood, quite quickly at the beginning but becoming slower as the water level in the pit lake rises.
Technical Papers and Presentations -
www.comsol.com/paper/13234
The hills of South-Limburg, the Netherlands, are crisscrossed with underground limestone mines. These "caves" are not equally stable, and can be dangerous. With COMSOL Multiphysics® a stability assessment has been made. The first study examines the full stress and displacement profile without excavation.
Technical Papers and Presentations -
www.comsol.com/paper/16125
Landmines are an open problem in many countries of the world. They cause injuriesand death and no technique proposed to date guarantees fast and 100% reliable detection alone. To this purpose, at the Humanitarian
Demining Laboratory of “La Sapienza” University of Rome, several solutions are being studied. In this paper, numerical simulations of a prototype thermal detection system are reported, and results compared to experimental results.
Technical Papers and Presentations -
www.comsol.com/paper/8206
With this method, an area with known landmines is bombed or plowed using sturdy, mine-resilient tanks to detonate them safely. The relation between how deep the mine was buried and the scattering showed a clear connection to the soil's interference with the wave.
For instance, the more shallow the mine was buried, the more easily it was detected.
COMSOL Blog -
www.comsol.com/blogs/simulation-improves-electromagnetic-ied-detection ...
The detection, characterization, and classification of underground environmental hazardous objects [mines, IEDs, and other unexploded military hardware] is a worldwide problem that needs urgent attention and solution. While electromagnetic sensor technologies have been applied to identify these hazards, increasingly low dielectric contrast between newer, sophisticated landmines, and complex surrounding soil geometric in-homogeneities acts as an increasingly major impediment to successful detection. The present study investigates the use of the Finite Element Method in the COMSOL Multiphysics® software to model the propagation of electromagnetic waves introduced into the computational domain non-invasively.
Technical Papers and Presentations -
www.comsol.com/paper/29052
The CBM extraction pipeline system simulation model is based on Dingji coal mine in Huainan Mining group. The paper used pipe flow module in COMSOL Multiphysics.
Technical Papers and Presentations -
www.comsol.com/paper/31163
Acoustic landmine detection is accomplished using a loud speaker as an airborne source to generate low-frequency waves that enter the soil at a certain incident angle. At a specific frequency, the landmine will "vibrate" at resonance, imparting a certain velocity on the soil particles above it that is detected by a scanning Laser Doppler Vibrometer system.
The ability to mathematically predict the soil surface velocity plots created from these experiments would enable the technology to be implemented faster in more challenging environments.
Technical Papers and Presentations -
www.comsol.com/paper/5109
In underground mining operations, the mined-out spaces (called stopes) need to be backfilled to maintain the stability of surrounding rock mass and increase the ore recovery. Cemented paste backfill (CPB), a mixture of water, binder, and tailings, has been intensively utilized in underground mining operations to fill the stopes. After preparation, the fresh CPB is transported into stopes via gravity and/or pipelines.
Technical Papers and Presentations -
www.comsol.com/paper/26102
The performance of the oil reservoir is decisively determined by the hydraulic permeability of the rock and the possible flow paths. During the production phase, the petrophysical properties of the rock may deteriorate due to highly viscous oil deposits, especially in the near of the borehole. Therefore, it is a challenge to restore the permeability in this area.
Technical Papers and Presentations -
www.comsol.com/paper/51251
In 2002 a novel technology was proposed by the Department of Mining Engineering of Chile University which consists in two cylindrical packed bed furnaces in cascade for treating molten blister copper from converting contains around 0.01 and 0.5 mass % of dissolved sulfur and oxygen, respectively.
Technical Papers and Presentations -
www.comsol.com/paper/13065
The study of the magnetic field provide also an overview of mine-clearing tools disturbances on the field generated by DEMETER.
Technical Papers and Presentations -
www.comsol.com/paper/26021
We serve various industries, including surface and geological disposal of radioactive waste, mining, oil & gas, water resources management, circular economy, and industrial processes. Hydro-Chemo-Mechanical Processes in the Mining Industry Heap leaching, a metallurgical process to extract metals from ore recovered from underground mines, was modeled with COMSOL®.
Certified Consultants -
www.comsol.com/certified-consultants/amphos21
This study models the energy harvesting reached from an air flow transportation through the flapping of a cantilever polymer flag. The mechanical resonance of the flag is created by a Venturi channel. The flag is charged by triboelectrification and its flapping between two electrodes induces an electrical current in a load.
Technical Papers and Presentations -
www.comsol.com/paper/94911
Heap leaching in the mining industry had become a sophisticated practice at least 500 years ago. It is a mineral processing technology whereby piles of crushed Run-of–Mine rock are leached with chemical solutions to extract minerals.
Technical Papers and Presentations -
www.comsol.com/paper/15446
Reactive transport modeling is a powerful tool for challenges in the oil, mining, and nuclear industries, mainly related to underground environmental issues, such as the safety assessment of radioactive waste disposal, mine hydrology and waste management, deep injection of fluids, and carbon capture and storage activities, among others.
COMSOL Blog -
www.comsol.com/blogs/amphos-21-modeling-coupled-thermo-hydro-mechanical ...
Since October 2009 the laboratory of ATE has carried out collaborative research with the WTD 71 that aims for prediction, reduction and optimization of so-called underwater electric potential (UEP) signatures. COMSOL is used to simulate potential distributions in the context of impressed current cathodic protection (ICCP) systems. The electrode kinetics is considered by using boundary conditions based on non-linear polarization curves.
Technical Papers and Presentations -
www.comsol.com/paper/11110