2019 Volume 56 Issue 1 Pages 1-7
In recent years, water analysis has been proposed as a method to extract the potential slopes of deep-seated landslides. Although this technique can be used to predict the site of groundwater spring by water analysis, it does not take into consideration changes in the characteristics of leaching ions due to bedrock condition. Therefore, in the current study, we conducted a leaching test on boring cores weathered under different conditions for differences in ion concentration. We found that ion concentration changed with sample core depth and fracture opening length. Ion concentrations increased at a fracture opening length of approximately 3 mm. From these results, we conclude that cracks and bedrock weathering can influence the dissolution of ions.
