|
|
RGC: Modeling
Modeling
Consulting and engineering services are provided in numerical modeling for a variety of geoscience disciplines:
hydrogeology/hydrology, geochemistry and slope stability (geotechnics).
Typical modeling in hydrogeologic investigations involve groundwater flow and contaminant transport,
modeling of watershed runoff, cover modeling and seepage modeling in unsaturated zones. Geochemical models also help in
understanding the complex chemical and mineralogical processes effecting the environment. Slope and rock
stability represent another aspect of modeling activity related to tailings dams, pit walls, and other problematics.
Modeling packages licensed to RGC:
Groundwater Modeling System (GMS), MODFLOW (FD), MODPATH, MT3D, FEFLOW, SEEP/W, HYDRUS, SOILCOVER, HELP, MINTEQ, PHREEQE/PHREEQM, SLOPE/W
Typical hydrological modeling projects include:
- assessment of net infiltration into mine waste (tailings, waste rock etc.)
- development of water balance for mine units of entire mine site
- designs of water diversion systems using pumps and/or drains
- assessment of rewetting and evaporation losses during tailings discharge
- watershed runoff analysis
Examples of typical projects include:
Chuquicamata, Chile
Grasberg Mine, Indonesia
Questa Mine Site, USA
Rose Creek Tailings Facility, Yukon
Typical hydrogeological modeling projects include:
- groundwater flow characterization (in porous or fractured rock)
- designs of dewatering systems using pumps and/or drains
- designs of water diversion systems using pumps and/or drains
- characterization of seepage behavior in tailings impoundments and
waste rock piles
- prediction of phreatic surface under various operating
conditions
- designs of seepage control systems with due consideration to dam
stability and water quality
Examples of typical projects include:
Faro Open Pit Mine
Fullerton Site
Lac de Gras Mining Area
Mount Morgan, Australia
Questa Mine Tailings Impoundment
Rose Creek Tailings Facility, Yukon
Warrego Tailings Impoundment, Australia
Woodcutter's Mine, Australia
Typical soil cover modeling projects include:
- assessment of different cover types (e.g. zero water flux, water storage and oxygen limiting)
- evaluation of different cover scenarios (e.g. material type, cover thickness and vegetation)
- cover design for closure for mine rock piles and tailing storage facilities
- calibration of model using in-situ monitoring of saturation and volumetric water content and
use of calibrated model to predict final closure conditions
Examples of typical projects include:
Zortman and Landusky Mines, Montana
Grasberg Mine, Indonesia
Culmitsch Tailings Impoundment
Questa Mine Tailings Impoundment
Chuquicamata Mine
Typical geochemical modeling projects include:
- equilibrium speciation modeling
- transport modeling
- contaminant load prediction to downstream environments
Examples of typical projects include:
Faro, Vangorda, Grum Mine Complex
Questa Mine
Zortman and Landusky Reclamation Project
Tintaya Mine
Arctic Project
Gilt Edge Mine
Grasberg Mine
Typical geotechnical modeling projects include:
- dam slope stability
- rock slope stability
- tailings dam design
- bearing capacity and foundation design
Examples of typical projects include:
Faro, Vangorda, Grum Mines
Island Copper Mine
Sao Bento Mine
Fort Knox, Alaska
Sadiola Slimes Dam, Mali
Antamina Mine, Peru
| |
