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首页> 外文会议>2011 International Conference on Electric Technology and Civil Engineering >Three-dimensional numerical simulation of utility tunnel for large-scale shaking table test
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Three-dimensional numerical simulation of utility tunnel for large-scale shaking table test

机译：大型振动台试验隧道的三维数值模拟

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摘要

Free-Field responses of soil in a large-scale shaking table test is simulated by a three-dimensional numerical model using FEM software ABAQUS as a platform. The Drucker-Prager model is adopted for the soil modeling and the shell elements are used for the box with a mass representing the effect of inertia force caused by the frame of laminar shear box. The feasibility and efficiency of the proposed FEM model is validated by comparing the predicted responses with experimental measurements in terms of time history and soil acceleration amplification factors. The results demonstrate that the proposed analytical model can predict deformational characteristics, within acceptable accuracy, of the test soil, and the response of the utility tunnel was also calculated and compared with the test results. The results agree well.
机译：以三维有限元分析软件ABAQUS为平台，通过三维数值模型模拟了大型振动台试验中土壤的自由场响应。土壤模型采用Drucker-Prager模型，箱体使用壳单元，其质量表示由层状剪切箱框架引起的惯性力的影响。通过在时程和土壤加速度放大因子方面将预测响应与实验测量值进行比较，验证了所提出有限元模型的可行性和有效性。结果表明，所提出的分析模型可以在可接受的精度范围内预测试验土的变形特征，并且还可以计算出实用隧道的响应并将其与试验结果进行比较。结果很好。

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