Assessment of Open Pit Dewatering Requirements and Pit Lake Formation for the KA +/- AYladag Gold Mine, UAYak, Turkey

Date

2016-06-01

Author

UNSAL, Burcu
Yazıcıgil, Hasan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

122
views

0
downloads

The KA +/- AYladag gold mine (UAYak, Turkey) has operated since 2006 and is projected to close by 2030, leaving a large open pit. We quantified dewatering requirements during the operational period, predicted pit lake formation during the post-closure period, and assessed the likely impacts on groundwater resources. Groundwater inflow into the pit during 17 years of mining was calculated using analytical and numerical models. The analytical model yielded lower inflow rates because it does not account for groundwater that will be released from storage. Post-closure, pit lake water balance calculations show that the system will reach equilibrium 585 years after dewatering ceases and that lake levels will stabilize at 816 m above sea level (masl). Further analysis indicated that 830 masl is a critical level, below which the pit will behave as a sink; above that, it will be a flowthrough system that could possibly affect downgradient groundwater quality.

Subject Keywords

Groundwater, Numerical modeling, Lake-budget

URI

https://hdl.handle.net/11511/31610

Journal

MINE WATER AND THE ENVIRONMENT

DOI

https://doi.org/10.1007/s10230-015-0345-5

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

Assessment of artificial aquifer recharge potential in the Kucuk Menderes River Basin, Turkey Sayit, Ayse Peksezer; Yazıcıgil, Hasan (2012-06-01) The Kucuk Menderes River Basin in western Turkey has been facing continuous groundwater-level decline for decades. Previous studies have suggested that, to avoid aquifer depletion in the basin, artificial recharge structures should be constructed. To assess artificial aquifer recharge potential in one of the subbasins, a two-dimensional (2-D) groundwater model was set up using SEEP/W software. The material functions and parameters used in the model for both saturated and unsaturated conditions were taken fr...
Assessment of Dewatering Requirements and Dewatering Well Design for an Open Pit Coal Mine in Central Anatolia Peksezer Sayıt, Ayşe; Yazıcıgil, Hasan (2022-09-01) The celtikci Coal Basin is a newly discovered coal basin in Central Anatolia where 11 years of open-cut mining has been planned. The bulk of the mining will be conducted below the regional water table; hence, determination of the dewatering requirements and proper design of the dewatering wells plays a critical role. This study (i) defined the dewatering requirements of the open-pit mine, (ii) established a dewatering well design for the area, and (iii) assessed the anticipated impacts of the dewatering act...
Sustainable development and management of an aquifer system in western Turkey SAKIYAN, J; Yazıcıgil, Hasan (2004-02-01) This study presents the establishment of sustainable development and management policies for the Kucuk Menderes River Basin aquifer system in western Turkey. Geological, hydrogeological, and geophysical data are used conjunctively to define various hydrogeological units and their geometry. Distributions of hydraulic-parameter values and recharge are estimated by geostatistical methods and hydrologic simulations, respectively. A finite-difference groundwater flow model is used to represent the unconfined flo...
Assessment of dewatering requirements for Çaldağ nickel mine in Western Turkey Cankara, Çiğdem; Yazıcıgil, Hasan; Department of Geological Engineering (2011) The purpose of this study is to assess the dewatering requirements of planned open pit nickel mining at Çaldağ Site in Western Turkey. Dewatering is required for safe and efficient working conditions and pit wall stability. With this scope, a groundwater model of the study area is developed and used to predict the dewatering rate. The methodology mainly involves data collection, site hydrogeologic characterization and development of conceptual model, followed by construction and use of a groundwater model t...
Assessment of Water Supply Impacts for a Mine Site in Western Turkey AGARTAN, Elif; Yazıcıgil, Hasan (2012-06-01) A nickel mine site located in western Turkey requires approximately 135 L/s of water for 15 years. To assess the potential impacts associated with meeting this water supply requirement, we determined alternative water resources, assessed the potential impacts associated with each resource, and selected the most feasible alternative, given the environmental and technical impacts. Three options were considered: surface water, groundwater, and treated wastewater. A low-flow analysis of Gediz River was conducte...

Citation Formats

B. UNSAL and H. Yazıcıgil, “Assessment of Open Pit Dewatering Requirements and Pit Lake Formation for the KA +/- AYladag Gold Mine, UAYak, Turkey,” MINE WATER AND THE ENVIRONMENT, pp. 180–198, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31610.