DESTRUCTION MODE OF DRY STONE RETAINING WALLS AND REVETMENTS

Abstract

 Dry stone walling, a traditional technique that is valued from environmental perspective, may have diverse strengths that cannot be measured only by the strength of the structure such as “toughness” that does not make the function as a structure zero after the disaster.

 In this study, a total of 452 cases of damage to retaining walls and revetments were collected from Shikoku and Kyushu, and photographs were classified according to the part of destruction of the structure, and the behavior during destruction was observed. As a result of observation, dry stone walling is a structure that can be effective after it is broken, (1) it breaks small, (2) it is hard to lose its function when it breaks, (3) it is easy to recover, (4) there is a possibility that the risk of secondary damage is low.