| 非饱和填土(黄土)强度特性的三轴试验研究 |
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| 引用本文： | 关亮,陈正汉,黄雪峰,孙树国,方祥位.非饱和填土(黄土)强度特性的三轴试验研究[J].建筑科学,2011,27(11). |
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| 作者姓名： | 关亮 陈正汉 黄雪峰 孙树国 方祥位 |
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| 作者单位： | 1. 后勤工程学院军事建筑工程系,重庆400041;黑龙江省军区黑河军分区,黑龙江黑河164300
2. 后勤工程学院军事建筑工程系,重庆,400041 |
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| 摘 要： | 采用非饱和土三轴仪,针对甘肃平定高速公路黄土路堤的非饱和填土进行了一系列的控制吸力的剪切试验,研究结果表明:不同吸力和干密度的试样均呈脆性破坏;干密度对凝聚力和有效摩擦角均有显著影响,而吸力仅对凝聚力影响较大,对有效内摩擦角的影响可以忽略不计。根据试验结果确定了该土的强度表达式及其参数,为工程应用提供了依据。
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| 关 键 词： | 非饱和填土 吸力 三轴试验 强度 |
Study on the Strength Character of Unsaturated Loess by Three-Dimensional Tests |
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| GUAN Liang,CHEN Zheng-han,HUANG Xue-feng,SUN Shu-guo,FANG Xiang-wei.Study on the Strength Character of Unsaturated Loess by Three-Dimensional Tests[J].Building Science,2011,27(11). |
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| Authors: | GUAN Liang CHEN Zheng-han HUANG Xue-feng SUN Shu-guo FANG Xiang-wei |
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| Affiliation: | GUAN Liang1,2,CHEN Zheng-han1,HUANG Xue-feng1,SUN Shu-guo1,FANG Xiang-wei1(1.Department of Civil Engineering,Logistical Engineering University,Chongqing 400041,China,2.Heihe Military Sub-command of Heilongjiang Provincial Military Area Command,Heihe 164300,Heilongjiang,China) |
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| Abstract: | The three-dimensional device for testing the behavior of unsaturated soil was used in the shear tests with controlled suction,in which the unsaturated soil was collected from the highway roadbed in Gansu Ping Ding.The test results show that(1) the failures of the specimens with different suctions and dry densities are all brittle pattern,(2) the cohesion and effective inner friction angle are greatly influenced by the dry density,(3) the influence of the suction on the cohesion is apparent,whereas this effe... |
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| Keywords: | unsaturated soil suction three-dimensional test strength |
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