| 基于单剪试验邓肯E B模型参数的确定 |
| |
| 引用本文： | 孔维耀,陆 扬,刘斯宏,黄明坤,谢 浩.基于单剪试验邓肯E B模型参数的确定[J].水电能源科学,2015,33(2):140-143. |
| |
| 作者姓名： | 孔维耀 陆 扬 刘斯宏 黄明坤 谢 浩 |
| |
| 作者单位： | 1. 上海市政工程设计研究总院（集团）有限公司， 上海 200092； 2. 上海市水利工程设计研究院有限公司， 上海 200061； 3. 河海大学 水利水电学院， 江苏 南京 210098 |
| |
| 基金项目： | 国家自然科学基金项目（51179059） |
| |
| 摘 要： | 土石坝应力应变有限元计算中常采用邓肯E-B模型,模型参数大多通过三轴试验确定,但操作相对比较复杂,为此提出一种通过单剪试验确定邓肯E-B模型参数的方法,即对某一级配粗粒料进行单剪试验,将试验得到的单剪条件下的应力应变关系通过转换公式得到三轴条件下的应力应变关系,据此整理得到的邓肯E-B模型参数与三轴试验结果基本一致,并用该参数对单剪试验进行有限元数值模拟,得到的应力应变关系与试验结果较为吻合。
|
| 关 键 词： | 粗粒料 单剪试验 E-B模型 数值模拟 |
Determination of Ducan E B Model Parameters Based on Simple Shear Tests |
| |
| KONG Wei-yao;LU Yang;LIU Si-hong;HUANG Ming-kun;XIE Hao.Determination of Ducan E B Model Parameters Based on Simple Shear Tests[J].International Journal Hydroelectric Energy,2015,33(2):140-143. |
| |
| Authors: | KONG Wei-yao;LU Yang;LIU Si-hong;HUANG Ming-kun;XIE Hao |
| |
| Affiliation: | KONG Wei-yao;LU Yang;LIU Si-hong;HUANG Ming-kun;XIE Hao;Shanghai Municipal Engineering Design Institute(Group)CO.,LTD.;Shanghai Water Engineering Design & Research Institute CO.,LTD.;College of Water Conservancy and Hydropower Engineering,Hohai University; |
| |
| Abstract: | Duncun E B model is commonly used in finite element analysis of stress and strain fields of embankment dam. The parameters required in this model are typically obtained through triaxial tests. In this study, simple shear test is presented to determine such parameters. Simple shear test is carried out on a coarse grained material with certain particle size distribution and then the obtained stress strain relationship is transferred to that in triaxial test conditions. It is found out that the E B model parameters obtained by this way are basically consistent with those determined by triaxial tests. Finally, those parameters are used to the finite element analysis of simple shear tests and the stress strain behavior is quite similar to test results. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
|
