PROPOSE OF STABILITY ANALYSIS BASED ON SEISMIC BEHAVIOR AND FAILURE MODE OF BACK-TO-BACK GEOTEXTILE REINFORCED SOIL WALL

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  • ジオテキスタイル両面補強土壁の地震時挙動と破壊形式に基づいた安定計算の提案

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While a type of back-to-back reinforced soil wall using geotextile is often applied at approach to the abutment, the seismic behavior and failure mode of the wall are not clear. Authors carried out the shaking table model test for the back-to-back wall to investigate the influence of distance of two opposing walls and overlap length of geotextile. The results of the model tests obtain that the walls behave independently and fail similar to circular slip when they do not intercept each other. When the geotextiles from both sides overlap or contact, the wall deforms due to dynamic settlement. This paper reports the seismic behavior of the wall obtained from the model test and proposes the stability analysis based on the failure mode of the back-to-back reinforced soil wall.

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