Journal of Korean Society of Agricultural Engineers ISSN:1738-3692(Print) 2093-7709(Online) 한국농공학회논문집

In-situ soil remediation mechanism through the vertical drains (VDs) is analyzed with numerical model as the error and complementary error function. Results from in-situ test and analysis indicate that the contaminant concentration ratio as initial one ( C/C₀) increases as the radius ratio ( r/R) increases from the injection well, and also increases as the depth ratio ( z/H) increases from the top of contaminated area. The elapse time needed to attain 50% and 90% clean up level (t₅₀, t₉₀) increases as the radius ratio (r/R) and the depth ratio (z/H) increase. As above results, the procedure of soil flushing in contaminated area using vertical drains makes progress from the top of injection well to the bottom of extraction well.