Abstract
Visual inspection methods are currently used on existing retaining structures. Consequently it is difficult to evaluate a structural health of the retaining walls quantitatively. In this study, a series of model tests on retaining walls were carried out to develop an inspection method for quantitatively evaluating existing railway retaining walls. It has been found from the series of model tests that vibration tests are an effective means to determine the vibration characteristics of retaining walls, which reflect their structural health. Test results indicated that small scale vibration tests could be applied to evaluation the structural health of existing retaining structures.
