SHAKING TABLE MODEL TESTS ON REINFORCED SOIL RETAINING WALLS BY USING DIFFERENT GEOGRID ARRAGEMENTS AND WALL FACING RIGIDITIES

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  • 補強材の敷設仕様と壁面剛性の異なるジオグリッド補強土擁壁の模型振動台実験

Abstract

A series of shaking table tests were carried out to investigate the effect of reinforcement vertical spacing and size on seismic performance of reinforced soil retaining walls. In addition to consider similarity rule on reinforcement rigidity, modulus of rigidity and friction angle of soil and a reinforcement. A method to measure the tensile force of the selected polyester reinforcement was also examined. As a result, even if reduce the number of laying, seismic performance when extended the length of reinforcement is equal to or greater than conventional arrangement of reinforced soil retaining walls. Because it is related to the rigid facing and connection strength are high. Similarly, segmental wall structure and reduce the number of laying was degrade the performance of seismic and different failure condition.

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