|本期目录/Table of Contents|

[1]赵法锁,戚炜,王艳婷.三向应力及湿度状态改变对 非饱和黄土力学特征的影响[J].地球科学与环境学报,2007,29(01):80-84.
　ZHAO Fa-suo,QI Wei,WA NG Yan-ting.Influence of Spherical Stress and Humidity State on Mechanical Property of Unsaturated Loess[J].Journal of Earth Sciences and Environment,2007,29(01):80-84.
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三向应力及湿度状态改变对 非饱和黄土力学特征的影响(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第29卷
期数:
2007年第01期
页码:
80-84
栏目:
出版日期:
2007-03-15

文章信息/Info

Title:
Influence of Spherical Stress and Humidity State on Mechanical Property of Unsaturated Loess
作者:
赵法锁; 戚炜; 王艳婷
长安大学地质工程与测绘工程学院,陕西西安710054
Author(s):
ZHAO Fa-suo; QI Wei; WA NG Yan-ting
School of Geological Engineering and Surveying Engineering, Chang’ an University, Xi’an 710054, Shaanxi, China
关键词:
黄土; 强度参数; 本构模型; 三向应力; 含水量
Keywords:
loess;  strength parameters;  constitutive model;  spherical stress;  water content
分类号:
TU455
DOI:
-
文献标志码:
A
摘要:
通过对黄土常规三轴试验结果分析,给出了非饱和黄土的强度参数随含水量的指数型变化关系式,并验 证了D-P屈服准则对不同湿度状态下黄土发生塑性屈服的适用性。不同三向应力条件和温度状态下的压缩试 验表明,Q3黄土的应力应变关系随着三向应力和含水量而变化,这种本构关系可以用一个简单的指数函数来描 述。与已有的模型相比,基于室内试验提出的半经验型黄土本构关系具有模型简单、参数少、易确定的优点。
Abstract:
The exponential functions of unsaturation loess strength parameters changing with water content are given after analyzing the results of convention tri-axle test, and the suitability of D-P criterion to decide plastic yield of loess in different humidity states is also verified. The loess compress test result shows that the stress- strain relationship of loess varies with spherical stress and humidity condition. The constitutive relation of Q3 loess can be described by a simple exponential function. A constitutive model is advanced based on testing in laboratory and comparing with the constitutive model offered in other documents, the model not only has less parameters and is easy to be determined, but also is simple.

参考文献/References:

[1] 刘祖典. 黄土 力学 与工 程[M] . 西安 :陕西科 学技 术出 版社, 1996.
[2] 谢定义. 试论我国黄 土力学研 究中的若 干新趋向[J] . 岩 土工 程学报,2001,23(1):3-13.
[3] 沈珠江. 理论土力学[M] . 北京 :中国水利水电出版社,2000.
[4] 华南 理工 大学,湖 南大 学,东 南 大学,等. 地基 及 基础[M] . 第 2 版. 北京 :中国建筑工业出版社,1991.
[5] 邢义川,罗亚生,李 振. 黄土的 断裂破坏 强度[J] . 水利 发电 学报,1999(4):36-44.
[6] 郑颖人,沈珠江,龚晓 南. 岩土塑 性力学原 理[M] . 北京 :中国 建筑工业出版社,2002.

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备注/Memo

备注/Memo:
收稿日期:2006-04-08 基金项目:科技部预研项目(2002CCC00200) 作者简介:赵法锁(1954-),男,河南渑池人,教授,博士生导师,从事动力滑坡学、地质灾害评价与防治教学研究。E-mail:dcdgx01@chd.edu.Cn
更新日期/Last Update: 1900-01-01