| 非饱和土基质吸力对抗剪强度参数影响的探讨 |
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| 引用本文： | 朱青青,苗强强.非饱和土基质吸力对抗剪强度参数影响的探讨[J].甘肃科学学报,2009,21(3):139-141. |
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| 作者姓名： | 朱青青 苗强强 |
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| 作者单位： | 1. 西北民族大学,化工学院,甘肃,兰州,730000
2. 中国人民解放军后勤工程学院,建筑系,重庆,400041 |
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| 摘 要： | 分析了前人提出非饱和土抗剪强度理论存在的局限性，通过试验研究和理论分析，验证了非饱和挤密黄土吸力对抗剪强度影响的内摩擦角值并非一个常数，而是随吸力的增大而减小，并得出吸力与内摩擦角之间的非线性函数关系，为研究非饱和土强度问题提供了理论依据．
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| 关 键 词： | 基质吸力 抗剪强度 内摩擦角 |
Discussion on the Influence of Matric Suction of Unsaturated Soil on Shear Strength Parameters |
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| ZHU Qing-qing,MIAO Qiang-qiang.Discussion on the Influence of Matric Suction of Unsaturated Soil on Shear Strength Parameters[J].Journal of Gansu Sciences,2009,21(3):139-141. |
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| Authors: | ZHU Qing-qing MIAO Qiang-qiang |
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| Institution: | ZHU Qing-qing1,MIAO Qiang-qiang2(1.College of Chemical Engineering,Northwest University for Nationalities,Lanzhou 730000,China,2.Department of Civil Engineering,Logistical Engineering University,PLA,Chongqing 400041,China) |
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| Abstract: | Shortages of theories of unsaturated soil shear strength were analyzed and some formulas were put forward.After proving the tests and analyzing the theories,we have understood that the internal friction angle related to matric suction is not a constant.It is a variable;with matric suction increasing,it decreases.The nonlinear relationship of matric suction and internal friction angle was obtained.The theoretical basis is provided for the shear strength study of unsaturated soil in the future. |
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| Keywords: | matric suction shear strength internal friction angle |
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