| 超固结粘土的二元介质模型 |
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| 引用本文： | 沈珠江,邓刚.超固结粘土的二元介质模型[J].岩土力学,2003,24(4):495-499. |
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| 作者姓名： | 沈珠江 邓刚 |
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| 作者单位： | 清华大学 水利水电工程系， 北京 100008 |
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| 基金项目： | 国家自然科学基金项目(批准号:59979009) |
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| 摘 要： | 为了分析超固结粘土边坡的变形和稳定的需要，在岩土破损力学的框架内建议了一个适用于这类土的二元介质模型。该模型考虑了土体内在的不均一性，把它看作由结构块和结构带组成的复合体，两者共同分担外荷载，模型包含10参数，并拟定了这些参数的测定方法。通过模拟三轴试验的计算表明，该模型可以反映London粘土的应力-应变特征。
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| 关 键 词： | 超固结粘土 本构模型 二元介质 |
| 文章编号： | 1000-7598-(2003)04-0495-05 |
| 收稿时间： | 2003-01-05 |
| 修稿时间： | 2003年1月5日 |
Binary-medium model for over-consolidated clays |
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| SHEN Zhu-Jiang,DEN Gang.Binary-medium model for over-consolidated clays[J].Rock and Soil Mechanics,2003,24(4):495-499. |
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| Authors: | SHEN Zhu-Jiang DEN Gang |
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| Institution: | Department of Hydraulic Engineering, Tsinghua University, Beijing 100008, China |
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| Abstract: | A binary-medium model is proposed for over-consolidated clays within the framework of breakage mechanics which has been advanced recently by the first author. In this model the heterogeneity inherent in the soils is taken into account; and a soil is regarded as a composite material consisting of structural lumps and structural bands to resist the external loads commonly. The model has 10 paramenters; and a method of their determination is also proposed. The results obtained from simulating triaxial test show that the model can reflect the mian features of the behavior of London clay. |
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| Keywords: | over-consolidated clays constitutive model binary-medium |
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