Relation of hydraulic conductivity to depth, alteration, and rock type in the volcanic rocks of Pahute Mesa, Nevada, USA

A finite-element groundwater flow model was developed for the expanding Dareh-Zar open pit mine in southern Iran, to simulate groundwater inflow into the excavation and mine wall pore pressure dynamics. The model was used to test the effectiveness of implementing different drainage management strategies to reduce groundwater inflow rates and mine wall pore pressures, including abstraction wells and horizontal drains. Model predictions suggest the implementation of abstraction wells will reduce groundwater inflow rates by 75% during the first 12 years of mining and 50% during the subsequent 5 years relative to a ‘no drainage’ management scenario, with further reductions in groundwater inflow achieved through horizontal drain installation. Furthermore, the installation of horizontal drains was found to be necessary to reduce mine-wall pore pressures from destabilizing the mine walls. Groundwater management of the decommissioned pit mine was also evaluated, with simulation results suggesting that backfilling the excavation would restore the groundwater level within the open pit mine region to ~2,442 m above sea level, representing a net restoration of ~204 m relative to the water table prior to mine closure.

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Relation of hydraulic conductivity to depth, alteration, and rock type in the volcanic rocks of Pahute Mesa, Nevada, USA

Cited by 6 publications

References 72 publications

Adopter une approche géologique pour améliorer la compréhension des aquifères de socle

Adopter une approche géologique pour améliorer la compréhension des aquifères de socle

Variation in hydraulic structure with respect to depth and age of a large igneous province in Ethiopia

Desenvolvimento de um modelo de fluxo de águas subterrâneas de elementos finitos para testar estratégias de gestão de drenagem para a expansão da mina a céu aberto de Dareh-Zar, Irã

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