Mechanical analysis of interaction between plant roots and rock and soil mass in slope vegetation

Abstract：With the help of plant roots, slope vegetation makes the slope soil mass become a composite material of soil and roots, and thus enhances shear strength of the slope soil mass and stability of the slope. However, the related studies at present are still qualitative. In this paper, quantitative analysis of the interaction between roots and soil mass are made. By the analysis of the interaction between herbaceous plant roots including lateral roots of woody plants and rock and soil mass, a mechanical model of the interaction between frictional roots and soil is established, and its correctness is shown.A mechanical model of the interaction between anchorage root, namely, woody plant taproot, and soil is also established. The establishment of the models provides a useful means in quantitative analysis of the interaction between plant roots and soil, and has practical values. 作者： Author： Zhi-xin YAN[1]  Yun SONG[2]  Ping JIANG[1]  Hou-yu WANG[3] 作者單位： Key Laboratory of Mechanics on Disaster and Environment in Western China Lanzhou University,Ministry of Education,Lanzhou 730000,P.R.China;School of Civil Engineering and Mechanics,Lanzhou University,Lanzhou 730000,P.R.ChinaCollege of Civil Engineering and Mechanics,Central South University of Forestry and Technology,Changsha 410004,P.R.ChinaAir Force Engineering Design & Research Bureau,Beijing 100077,P.R.China 期 刊： 應用數學和力學（英文版）   EISCI Journal： APPLIED MATHEMATICS AND MECHANICS 年，卷(期)： 2010, 31(5) 分類號： U213.158 Keywords： slope vegetation    vegetation for slope protection    mechanical model    frictional root    anchorage root    機標分類號： S15 TQ5 機標關鍵詞： vegetation    mass    rock    plant roots    interaction    quantitative analysis    mechanical model    composite material    strength of    practical    studies    related    However    paper    means    help 基金項目： Project supported by the National Natural Science Foundation of China，the Specialized Research Fund for the Doctoral Program of Higher Education，the Natural Science Foundation of Gansu Province of China

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