Applications of the geosynthetic materials as reinforced elements to strengthen of the embankments slope has a great world practice. The purpose of the numerical analysis was research of the stress-strain conditions of the long-term performance embankment reinforced by geogrid. The comparison of numerical and monitoring results of horizontal and vertical deformation of reinforced and unreinforced section of tested embankment was presented in paper as well as results of stress and strain development, consolidation process of tested embankment after elapse a long term. The obtained results of the researching work corroborated the hypotheses that reinforcement is one of the reliable and effective soil improvement models.
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