In this study on consolidation of domestic stacked waste landfi ll, the lower landfi ll was 18 years old and the upper landfi ll was new. The experimental and analytical research was performed to examine the settlement behavior of the waste landfi ll. Settlement behavior was monitored for about 20 years and the collected data were analysed. In addition, investigation of the leachate water quality and landfi ll gas were performed. Also, the applicability of the one dimensional Elasto-Viscous (E-V) model was verifi ed through the comparison with the fi eld monitoring data. The infl uence of consolidation parameters on the landfi ll settlement was studied by using numerical analysis. The study revealed that mechanical compression settlement of about 72% was generated in 1-2 years after closing the landfi ll and the settlement due to chemical decomposition is still progressing even after 18 years of closing the landfi ll. From the result of numerical analysis by E-V model, settlement of lower part of upper landfi ll was predicted 2.72m during 20 years and analysis result are corresponding well with the monitored data. According to the results of numerical analysis, the analytical ly derived settlement behavior through the fi nite difference method of E-V model was similar to the observed settlement behavior of the waste landfi ll. Therefore, it is judged that the longterm settlement characteristic can be predicted by using the numerical analysis on the similar waste landfi ll.
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