PERFORMANCE EVALUATION OF RAILWAY RETAINING WALLS BY USING A SMALL SHAKING DEVISE

Abstract

Performance evaluation of railway retaining walls is conventionally conducted by visual inspection. This is because there is no quantified evaluation of the railway retaining walls in the present. Therefore, to evaluate the performance of the retaining walls, the performance evaluation test by using a small shaking devise was proposed. In this method, the small shaking device was set on the top of the retaining wall and measure a natural frequency of the wall. By using the field test result, a numerical back analysis was conducted to calculate a coefficient of subgrade reaction of sound and unsound walls. The possibility of the quantified evaluation of the reinforced retaining wall was discussed in this paper.