Abstract
This study presents centrifuge model test results of the stress and deformation characteristics of earth retaining structures with sloping backfill and local loading. Transducers are used to measure the horizontal force, bending moment and lateral displacement of the wall during the test. Silty sand is selected as backfill soil. Lateral earth pressure distribution along the wall and structure deformation are continuously measured. Test results indicate that the front wall exhibit a rotation about the top movement mode and the lateral earth pressure acting on the front wall cannot be calculated via conventional theoretical methods. In addition, lateral force increases nonlinearly with depth. This effect is more evident at the lower part of the front wall, which causes the point of the application of total thrust to occur at relatively low locations. A simplified calculation method that considers wall displacement is introduced to provide a good description of lateral earth pressure and its distribution along the wall in the height direction.
Published Version
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