| 黄土增湿湿陷过程的三维有效应力分析 |
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| 引用本文： | 张爱军,邢义川.黄土增湿湿陷过程的三维有效应力分析[J].水力发电学报,2002,19(1):21-27. |
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| 作者姓名： | 张爱军 邢义川 |
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| 作者单位： | 1. 西北农林科技大学水电科学研究院,陕西,杨凌,712100；西安理工大学,西安,710048
2. 西北农林科技大学水电科学研究院,陕西,杨凌,712100 |
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| 摘 要： | 通过非饱和原状黄土湿陷增湿及孔隙压力特性试验得到的黄土增湿过程中的有效应力－应变关系，采用三维非线数值分析方法，对黄土地基从天然状态到非饱和增湿湿陷，直到饱和湿隐的全过程进行了分析，初步得出了黄土陷全过程的变形、应力转换等规律，是黄土湿陷性研究的一次有益的尝试，对评价地基在不同浸水程度下的湿陷变形有重要的意义。
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| 关 键 词： | 黄土 非饱和土 湿陷性 有效应力 数值分析 |
| 修稿时间： | 2001年3月9日 |
The Three-dimensional Effective Stress Analysis of the Loess Collapsibility in Total Process |
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| Zhang Aijun , Xing Yichuan.The Three-dimensional Effective Stress Analysis of the Loess Collapsibility in Total Process[J].Journal of Hydroelectric Engineering,2002,19(1):21-27. |
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| Authors: | Zhang Aijun Xing Yichuan |
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| Affiliation: | 1 North West Sci Tech University of Agriculture and Forestry Shannxi YangLing 712100; 2 Xi'an University of Technology Xi'an 710048 |
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| Abstract: | Through the three axis compress experiment measured the pore water and pore air pressure, the effective stress strain relationships of unsaturated collapsible loess in different water content are obtained. Based on it, using the method of three dimensional nonlinear numerical analysis, the total collapsing process of the loess groundwork, from original state to unsaturated state, and to saturated state, is analyzed, and some preliminary results about distortion, stress and strain in this process are acquired. It is a helpful try researching on the collapsibility of the unsaturated loess. |
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| Keywords: | Loess Unsaturated soils Collapsibility Unsaturated collapse Effective stress Numerical analysis |
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