Reinforced earth retaining walls are difficult to recover when problems occur. Therefore, it is necessary to develop and apply the stability evaluation and maintenance and reinforcement techniques to clarify the actual situation. In recent years, there have been increasing problems in reinforced earth re-taining walls located in special situations such as multistage, half-bank half-cut and front embankment depending on the behavior characteristics of foundation ground and adjacent structures. Therefore, it is necessary to develop a stability evaluation and maintenance and repair technique through a clear under-standing of the cause. In order to improve the stability of the reinforced earth retaining wall, increase the life span of the joint, and reduce the maintenance cost, it is necessary to apply the systematic stability evaluation and the repair and reinforcement technique. Therefore, in this study, the damage type of reinforced earth retaining wall was investigated in order to es-tablish mid – and long – term maintenance measures of reinforced earth retaining wall in employment, and the proper repair and reinforcement method according to the structure condition was proposed. The results of the study revealed the present problems of the design / construction / maintenance aspects of the rein-forced earth retaining wall, and suggested some improvements. In addition, data on appropriate repair and reinforcement techniques were collected and analyzed for each type of damage.
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