In the field of geotechnical engineering, the mitigation of geo-hazards induced by heavy rainfall is a common issue in many Asian countries, where the human as well as industrial activities are concentrated over a denselypopulated deltaic plane surrounded by mountains. Geo-hazards encountered in such Asiatic regions are highlighted by large-deformation or often catastrophic failure of natural slopes and the geo-structures located in a valley. In this paper, two case studies dealing with reinforced earth wall are described. It should be mentioned that heavy rainfall was the trigger for the trouble encountered. In these case studies, the causes of the excessive deformation, together with the results of numerical examination into countermeasures are described in detail. First, various site investigations and laboratory tests were carried out in order to manifest the current state of the reinforced soil retaining wall. Second, the deformation behavior of the wall was simulated by performing numerical analysis. Finally, an appropriate countermeasure to prevent further development of the wall deformation was proposed by predicting the stress-strain behavior of the reinforced soil retaining wall with the remedial work.
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