Abstract
Based on lessons learned from tsunami damage and generation of enormous quantity of post-quake waste in the Great East Japan Earthquake, two types of tsunami refuge places which can be diverted to landfill for future massive earthquake with utilizing Geosynthetics were examined. As tsunami refuge site (1), circular tsunami refuge place with soccer coat surrounded by 20m high dam body at perimeter was designed. 5m high linear refuge place with bicycle and pedestrian roads was also designed as tsunami refuge site (2) to use green belt buffer between land use zone of residential site and agricultural field.