A PRACTICAL METHOD FOR SLIDING DISPLACEMENT EVALUATION OF RAILWAY EMBANKMENT CONSIDERING DYNAMIC RESPONSE CHARACTERISTICS OF EMBANKMENT AND ITS SLIDING BLOCK

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  • 盛土本体と滑動部の振動特性を考慮した鉄道盛土の実用的な滑動変位量の算定手法

Abstract

<p> In this paper, evaluation method for sliding displacements of embankment is proposed considering its dynamic response characteristics. First, the method to identify response characteristics of both embankment and its sliding block was proposed. Second, evaluation method of sliding displacements was proposed by employing nonlinear dynamic response analysis with equivalent single degree of freedom model. Finally, accuracy of the proposed method was confirmed by numerical simulations. The proposed method makes it possible to easily estimating the seismic response of the embankment considering its vibration characteristics. This method is applicable for seismic design of railway system having numerous amount of embankment. In addition, the proposed method complies with that for bridges and viaduct, enabling to compare obtained results with those of other structures.</p>

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