Groundwater impact of open cut coal mine and an assessment methodology: A case study in NSW
Liang Zhao,Ting Ren,Ningbo Wang +2 more
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In this article, a methodology of groundwater impact assessment for an open cut mine in NSW with a three-dimensional groundwater flow model Modflow Surfact demonstrated its functions in simulating the project's impacts on the groundwater regime.Abstract:
Large scale open cut coal mining operations have significant impacts to groundwater in surrounding areas in both active and post-mining phases. The prediction of water inflows into a surface mine excavation is one of the many components involved in mine design phase. Groundwater performance also reacts to mining activities from the operational, economic and safety implications perspective. Under NSW planning legislation, as part of the comprehensive risk assessment, a groundwater impact assessment has to be conducted for a coal project to predict and mitigate the impacts in consideration of the government requirements. In this paper, the groundwater assessment modelling of mine pits was discussed in predicting of groundwater inflows and reviewing analytical and numerical approaches. A methodology of groundwater impact assessment for an open cut mine in NSW with a three-dimensional groundwater flow model Modflow Surfact demonstrated its functions in simulating the project’s impacts on the groundwater regime. The key findings with mitigations are discussed and recommended in the paper to reduce impacts on groundwater and fulfil regulation requirements in NSW.read more
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Definition of candidate Essential Variables for the monitoring of mineral resource exploitation
Mariapaola Ambrosone,Gregory Giuliani,Bruno Chatenoux,Diana-Denisa Rodila,Pierre Marcel Anselme Lacroix +4 more
TL;DR: This work is a first attempt to propose a framework of EEVs, derived data workflows, while the underlying methodology still needs to be tested and, improved based on expertise in the sector.
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Analytical solution for estimating groundwater inflow into lined tunnels considering waterproofing and drainage systems
Jinghui Liu,Xiaojun Li +1 more
TL;DR: In this paper, a water drainage seepage model considering drainage pipes, waterproof membranes, and geotextiles was developed, and an analytical solution was then derived to predict groundwater inflow into composite-lined tunnels.
Journal ArticleDOI
Impact of Coal Mining on the Moisture Movement in a Vadose Zone in Open-Pit Mine Areas
TL;DR: In this paper, the authors present a quantitative methodology and take the Baorixile open-pit coal mine as a study example to analyze the mechanisms and relationship among the dropping groundwater level, the vadose-zone moisture, and the ecological responses in the grassland area.
Journal ArticleDOI
Hydrogeochemical Processes and Connection of Multi-Layer Groundwater System in Sunan Mining Area, Eastern China
TL;DR: Using the APFS-MLR model, a geographic information system (GIS) spatial analysis, and a hydrochemical correlation analysis method, this paper identified the potential mineral phases in groundwater, the spatial distribution of mineral reactions, and the contribution rate of these reactions to hydrochemical variables.
Geochemistry, Evolution, and Mixing Estimation of Groundwater for Identifying Zones Affecting the Stability of Rock Slopes [an abstract of dissertation and a summary of dissertation review]
TL;DR: In this paper, the authors investigated groundwater characteristics, evolution and their connections to rock slopes and classified groundwater samples and their sources to estimate possible mixing of groundwaters within the rock layers and groundwater ages and finally identify sensitive zones affecting rock slopes.
References
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TL;DR: In this paper, the authors present a survey of the problems associated with mining and related industries, including deformation, contamination, and mine effluents and acid mine drainage, as well as other related problems.
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Numerical modelling of the groundwater inflow to an advancing open pit mine: Kolahdarvazeh pit, Central Iran
TL;DR: A hydrogeological assessment of the Irankuh Zn-Pb mine at 20 km south of Esfahan and 1 km northeast of Abnil in west-Central Iran and a comparison between numerical modelling using a finite element software called SEEP/W and actual data related to inflow are made to extend the applicability of the numerical model.
Journal ArticleDOI
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R N Singh,S M Reed +1 more
TL;DR: In this article, the hydrological cycle of a mining catchment together with the technique of estimating inflow from a surface source is described, together with a detailed description of the mining catchments.