2008 Volume 59 Issue 1-2 Pages 117-122
Basic numerical analysis on interactions between groundwaters and rocks concerned with the geological repository of nuclear waste in Japan were conducted in order to understand the chemical evolution processes of groundwaters. The evolution processes of groundwaters in granite and muddy sediment were examined, and the influence of heat to groundwaters was discussed. And cautions in application of numerical simulation to water-rock interaction modeling were summarized.