Mine dewatering and impact assessment in an arid area: Case of Gulf region.
作者： Yohannes Yihdego , Len Drury
DOI: 10.1007/S10661-016-5542-6
关键词: Water balance 、 Open-pit mining 、 Mining engineering 、 Geology 、 Groundwater recharge 、 Water table 、 Inflow 、 Dewatering 、 Water level 、 Groundwater 、 Hydrology
摘要: Analytical and empirical solution coupled with water balance method were used to predict the ground inflow a mine pit excavated below table, final lake level/recovery radius of influence, through long-term time variant simulations. The considers effect decreased saturated thickness near walls, distributed recharge table upward flow bottom. approach is flexible accommodate anisotropy/heterogeneity real world. Final void level was assessed scenarios know whether it will be consumed by evaporation shallow form or not. optimised influence estimated which considered as crucial information in relation engineering aspects planning sustainable development area. Time-transient over period using solutions, including analytical element (AEM). Their primary value providing estimates rates dewatering. Inflow estimation recovery helps there supplement demand if any issue dealt surface groundwater quality/eco-system, environmental evaluations mitigation. Therefore, this good at informing decision makers assessing effects mining operations developing an appropriate management strategy.
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