Groundwater Level Estimation for Slope Stability Analysis of a Coal Open Pit Mine


Yüksek S. , Şenol A.

Civil Engineering Research Journal, vol.12, no.1, pp.1-8, 2021 (Refereed Journals of Other Institutions)

  • Publication Type: Article / Article
  • Volume: 12 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.19080/cerj.2021.12.555827
  • Title of Journal : Civil Engineering Research Journal
  • Page Numbers: pp.1-8

Abstract

Abstract Stability and dewatering are important and priority in mining works, and hydraulic and hydrogeological studies are inevitable in mining sites. Especially in open pit mining, the presence of surface and groundwater in landslide and slope drift triggers stability problems. In this study, it was aimed to estimate the groundwater situation and level in the region for an open coal mine slope analysis in Amasya-Merzifon location. For this purpose, general hydraulic-hydrogeological data such as climate, vegetation, streams, water points, permeability of the soils have been compiled, precipitation basin, borders of the sub-basin where the mining area, drainage networks have been determined, and feedingdischarging has been estimated. Groundwater map was created, and water flow directions were drawn using 70 water wells that were drilled in the region and their flow rates ranged from 2 L/s. to 64 L/s. The condition of the groundwater table was determined from the prepared map, cross-section, and conceptual models, and it was seen that it is below the current operating levels and the results were used in slope stability analysis. Keywords: Open pit mine; Slope stability; Underground water level; Conceptual model