| 植被混凝土基材2中草本植物根-土复合体抗剪强度与根系分形特征研究 |
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| 引用本文： | 黄晓乐,周正军,许文年. 植被混凝土基材2中草本植物根-土复合体抗剪强度与根系分形特征研究[J]. 三峡大学学报(自然科学版), 2012, 34(2): 59-62 |
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| 作者姓名： | 黄晓乐 周正军 许文年 |
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| 作者单位： | 1. 中国葛洲坝集团股份有限公司勘测设计院,湖北宜昌,443002
2. 三峡大学三峡库区地质灾害教育部重点实验室,湖北宜昌,443002 |
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| 摘 要： | 植物根系的固土效应是目前水土保持领域研究的热点问题.通过种植狗牙根和紫花苜蓿2种草本植物,现场取根样分析了根系的分形特征,并进行了直剪试验.试验结果表明：根系对植被混凝土抗剪强度有增强作用,并且根-土复合体抗剪强度的增幅与根系分形特征存在显著的关系,即根-土复合体抗剪强度增幅随根系分形维数增加呈现出先增加后减少的趋势.
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| 关 键 词： | 根-土复合体 抗剪强度 分形维数 分形特征 |
Research on Shear Strength and Fractal Feature of Root-soil Composite System by Two Herb Plants in Vegetation-growing Concrete Matrix |
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| Huang Xiaole , Zhou Zhengjun , Xu Wennian. Research on Shear Strength and Fractal Feature of Root-soil Composite System by Two Herb Plants in Vegetation-growing Concrete Matrix[J]. Journal of China Three Gorges University(Natural Sciences), 2012, 34(2): 59-62 |
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| Authors: | Huang Xiaole Zhou Zhengjun Xu Wennian |
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| Affiliation: | 1.China Gezhouba Group Stock Co.,Ltd.Survay & Investigaton Institute,Yichang 443002,China; 2.Key Laboratory of Geological Hazards in Three Gorges Reservoir Area of Ministry of Education,China Three Gorges Univ.,Yichang 443002,China) |
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| Abstract: | Reinforcing effect of root-soil composite system is the hot issues in the areas of water and soil conservation.Two herb plants Alfalfa and Cynodon Dactylon were planted in vegetation-growing concrete matrix,and roots fractal feature and shear strength were analysed.It is indicated that the plant roots could improve soil shear strength significantly;and the soil shear strength amplification increases with increase of root fractal dimension first and then decraeses. |
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| Keywords: | root-soil composite shear strength fractal dimension fractal feature |
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