| 一种适合于岩石材料的双剪模型 |
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| 引用本文： | 昝月稳,俞茂宏,吉嶺充俊.一种适合于岩石材料的双剪模型[J].工程地质学报(英文版),2004,12(3):274-279. |
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| 作者姓名： | 昝月稳 俞茂宏 吉嶺充俊 |
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| 作者单位： | 西安交通大学,西安,710049;西安交通大学,西安,710049;西安交通大学,西安,710049 |
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| 摘 要： | 岩土类材料强度理论分为单剪强度理论、三剪强度理论和双剪强度理论。三类强度理论的典型代表是Mohr -Coulomb强度理论、Drucker-Prager准则和双剪强度理论。单剪强度理论、三剪强度理论和双剪强度理论都有其相应的单元模型 ,分析单元体上对单元体破坏起主要作用的应力 ,建立各应力分量之间的数学关系 ,形成岩土类材料的强度理论。本文分析岩石围压试验和真三轴试验下的破坏及强度特征 ,提出一种适合于岩石材料的双剪模型 ,与三类强度理论建模方法相同 ,可以得出一系列新的强度理论
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| 关 键 词： | 岩石强度理论 双剪模型 统一强度理论 岩石非线性统一强度理论 |
| 文章编号： | 1004-9665/2004/12(03)-0274-06 |
| 收稿时间： | 2003-11-24 |
| 修稿时间： | 2003年11月24 |
A TWIN-SHEAR MODEL FOR ROCK MATERIALS |
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| ZAN YuewenYU MaohongMitsutoshi YOSHIMINE.A TWIN-SHEAR MODEL FOR ROCK MATERIALS[J].Journal of Engineering Geology,2004,12(3):274-279. |
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| Authors: | ZAN YuewenYU MaohongMitsutoshi YOSHIMINE |
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| Institution: | Xi’an Jiaotong University, Xi’an 710049 |
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| Abstract: | The strength theories of geotechnical materials can be classified as single shear strength theory, tri-shear strength theory and twin-shear strength theory. They are represented by the Mohr-Coulomb theory, Drucker-Prager criterion and the twin-shear theory respectively. Each strength theory has its own representative element model. The strength theory is established by analyzing the stresses that cause the model element to fail and by developing the mathematical relationship among the stresses on the model. Based on the characteristics of failure and strength of rocks under symmetry compression tests and true tri-axial compression tests, the authors introduce a new twin-shear model and associated strength theories for rock materials. |
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| Keywords: | Strength theory of rocks Twin-shear model Unified strength theory Nonlinear unified strength theory of rock |
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