Triaxial Compression Test and Constitutive Model for Red Mudstone of Badong Formation
详细信息
- 责任者：Zhang Jiaming (Engineering Faculty ; China University of Geosciences ; Wuhan 430074 ; China) ; Liu Yuhang
- 刊名：Journal of Engineering Geology
- 出版年：2013
- 卷期：21(1)
- 关键词：泥岩 ; mudstone ; 三轴试验 ; triaxial tests
- 页码：p.138-142
- 图表：illus., 1 table, 12 refs.
- 分类号：1702
- issnNo：ISSN1004-9665
- isbnNo：CN11-3249/P
摘要
Using MTS testing machine,the triaxial compression test with four different confining pressures and the uniaxial compression test are carried out on the red mudstone of Badong formation.The complete stress-strain curves of five different confining pressures are obtained.According to the results,the complete stress-strain curve is divided into four main phases.The relationships of the yield strength,the peak strength,and the residual strength with confining pressure are analyzed,respectively.The results show that they get a linear increase relationship with the confining pressure.Also,the bilinear elastic-linear strain softening-residual ideal plastic model is found for the mudstone.The constitutive model of each part is discussed.The related parameters are calculated.
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