| 一种改进的粘土亚塑性本构模型 |
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| 引用本文： | 冶小平,孙强,王媛媛,李厚恩,薛雷.一种改进的粘土亚塑性本构模型[J].岩土力学,2010,31(4):1099-1102. |
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| 作者姓名： | 冶小平 孙强 王媛媛 李厚恩 薛雷 |
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| 作者单位： | 1. 中国科学院地质与地球物理研究所,北京,100029
2. 北京市勘察设计研究院有限公司,北京,100038 |
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| 基金项目： | 国家"973"项目内外动力耦合作用下地质灾害的演化及其对工程安全的影响，中科院知识创新工程重要方向项目 |
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| 摘 要： | 简要地介绍了Herle和Kolymbas针对黏土建立的亚塑性本构模型的方法。结合黏土的特性以及对响应包络线的分析，详细地列出了HK模型几个尚未解决的问题，并对该模型3个参数分别进行了改进，建立了改进后的HK亚塑性公式以及参数的确定方法。改进后的模型继承了HK模型参数少、易确定以及公式简洁等特点，使HK模型不仅具有严密的数学和力学基础，而且具有较好的实际意义。
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| 关 键 词： | 亚塑性 本构模型 黏土 响应包络线 |
| 收稿时间： | 2008-10-07 |
A modified hypoplastic constitutive model for clay |
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| YE Xiao-ping,SUN Qiang,WANG Yuan-yuan,LI Hou-en,XUE Lei.A modified hypoplastic constitutive model for clay[J].Rock and Soil Mechanics,2010,31(4):1099-1102. |
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| Authors: | YE Xiao-ping SUN Qiang WANG Yuan-yuan LI Hou-en XUE Lei |
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| Institution: | 1.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2.BGI Engineering Constructions Ltd., Beijing 100038, China |
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| Abstract: | The established method of Herle and Kolymbas’s (HK’s) clay hypoplastic constitutive model is described. Several shortcomings of HK model are listed in detail by analyzing clay behavior and response envelope line; then three parameters in HK equation are modified to develop a modified HK hypoplastic formulation and determine parameters. The modified model has advantage of a few parameters which are easy to determine and a simple formulation. Meanwhile, modified HK model not only are based on rigorous mathematics and mechanics, but can be applied to practice. |
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| Keywords: | hypoplasticity constitutive model clay response envelope line |
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