| 非饱和填土(黄土)的湿化变形研究 |
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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)的湿化变形研究[J].岩石力学与工程学报,2011,30(8):1698-1704. |
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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；2. 黑龙江省军区 黑河军分区，黑龙江 黑河 164300 ) |
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| 摘 要： | 为探讨非饱和路堤填土湿化变形规律，应用非饱和土三轴仪，对干密度为1.7和1.8 g/cm3的重塑黄土进行24组剪切试验，控制净室压力为50，100和200 kPa，控制吸力为0，50，100和200 kPa。采用2种简化的模型和双线法分析湿化变形，给出应用线性简化模型和双曲线模型计算湿化变形的公式，并确定公式中的参数取值。通过分析2种模型计算的湿化变形发现，干密度对湿化变形影响很大，因此提高路基压实度可以有效地控制湿化变形。
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| 关 键 词： | 土力学非饱和填土控制吸力和净围压的三轴剪切试验湿化变形双线法简化模型 |
| 收稿时间： | 2011-03-17; |
STUDY OF WETTING DEFORMATION OF UNSATURATED REMOLDED LOESS |
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| GUAN Liang,CHEN Zhenghan,HUANG Xuefeng,SUN Shuguo,FANG Xiangwei.STUDY OF WETTING DEFORMATION OF UNSATURATED REMOLDED LOESS[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(8):1698-1704. |
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| Authors: | GUAN Liang CHEN Zhenghan HUANG Xuefeng SUN Shuguo FANG Xiangwei |
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| Affiliation: | (1. Department of Civil Engineering，Logistical Engineering University，Chongqing 400041，China；2. Heihe Military;
Sub-command，Heilongjiang Provincial Military Area Command，Heihe，Heilongjiang 164300，China) |
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| Abstract: | 24 groups of shear tests on remolded loess are conducted by using triaxial apparatus for unsaturated soils to study the wetting deformation laws of unsaturated embankment fill.The dry densities of specimens are 1.7 and 1.8 g/cm3,respectively;the cell pressures are chosen as 50,100 and 200 kPa;and the control suctions are chosen as 0,50,100 and 200 kPa.Based on the above,two simplified models and double-line method are used in the analysis of wetting deformation;and formulae for calculating the wetting defor... |
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| Keywords: | soil mechanics unsaturated fill triaxial shear tests with controlled suction and cell pressure wetting deformation double-line method simplified models |
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