基覆边坡支挡结构的加速度放大系数数值与试验研究

doi:10.13722/j.cnki.jrme.2015.02.016

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Abstract Based on the supporting structure of the railway from Dali to Ruili and the Wenchuan earthquake excitation，the dynamic characteristics of 3 kinds of retaining structures against slopes of bedrock and overburden layer were studied with the methods of numerical analysis and shaking table experiment. The responsive acceleration under the action of input XZ-excitation of Wenchuan earthquake is the main focus in the study. The results from two methods are found to be largely similar to each other. The horizontal acceleration of three types of retaining walls increases with the height of retaining wall increasing，and the vertical acceleration on anchor frame beam increased with the height of monitoring point rising. So，as far as the earthquake acceleration is concerned，the shaking table test is reasonable and the numerical modeling is reliable. However，the results of numerical modeling are slightly bigger.

Key words： slope engineering bedrock and overburden layer slopes numerical analysis with FLAC3D shaking table test acceleration amplification coefficient

Received: 17 February 2014

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http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2015.02.016 OR http://www.rockmech.org/EN/Y2015/V34/I02/374

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