| 千将坪滑坡非饱和土的土-水特征曲线试验研究 |
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| 引用本文： | 李孝平,王世梅,王卓娟,胡海浪.千将坪滑坡非饱和土的土-水特征曲线试验研究[J].三峡大学学报(自然科学版),2007,29(1):40-42. |
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| 作者姓名： | 李孝平 王世梅 王卓娟 胡海浪 |
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| 作者单位： | 三峡大学,土木水电学院,湖北,宜昌,443002 |
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| 摘 要： | 利用能控制吸力的四联非饱和土直剪仪,进行三峡库区千将坪滑坡非饱和土的试验,得到在不同正应力和不同基质吸力条件下土的质量含水量,并根据试验结果,绘制非饱和土的土-水特征曲线,对相应的土-水特征曲线模型进行了拟合,得出其拟合函数.分析得到了应力状态影响了土的进气值,土-水特征曲线随应力的增大而变得平缓.
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| 关 键 词： | 非饱和土 基质吸力 含水量 拟合 |
| 文章编号： | 1672-948X(2007)01-0040-03 |
| 修稿时间： | 2006年11月28 |
Experimental Research on Soil-Water Curve of Unsaturated Soil of Qianjiangping Landslide |
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| Li Xiaoping,Wang Shimei,Wang Zhuojuan,Hu Hailang.Experimental Research on Soil-Water Curve of Unsaturated Soil of Qianjiangping Landslide[J].Journal of China Three Gorges University(Natural Sciences),2007,29(1):40-42. |
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| Authors: | Li Xiaoping Wang Shimei Wang Zhuojuan Hu Hailang |
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| Abstract: | By using an advanced shear instrument which can control suction,the soil water characteristics of Qianjiangping landslide unsaturated soil in theThree Gorges Reservoir area under different vertical pressures,are studied experimentally.Based on the experimental results,the curves of soil-water characteristics of unsaturated soil are obtained.At the same time,the function of fitted curves and fitted parameters are obtained.The curves show that the state of stress affects the suction and the soil-water curve becomes horizontal with the increase of the stress. |
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| Keywords: | unsaturated soil matric suction water content fitting |
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