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| NUMERICAL AND EXPERIMENTAL STUDY ON AMPLIFICATION COEFFICIENT OF ACCELERATION OF RETAINING STRUCTURES OF BEDROCK AND OVERBURDEN LAYER SLOPES |
| YANG Guolin1，SHEN Quan1，YANG Xiao1，2，YI Yuelin1 |
| (1. School of Civil Engineering，Central South University，Changsha，Hunan 410075，China；2. Department of Civil Engineering，Monash University，Melbourne 3800，Australia) |
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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.
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Received: 17 February 2014
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2015, Vol. 34 
