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Applied Mathematics and Mechanics (English Edition) ›› 2010, Vol. 31 ›› Issue (5): 617-622.doi: https://doi.org/10.1007/s10483-010-0509-9

• Articles • 上一篇    下一篇

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

言志信1,2 宋云3 江平1,2 王后裕4   

  1. 1. Key Laboratory of Mechanics on Disaster and Environment in Western China(Lanzhou University), Ministry of Education, Lanzhou 730000, P. R. China;
    2. School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, P. R. China;
    3. College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, P. R. China;
    4. Air Force Engineering Design & Research Bureau, Beijing 100077, P. R. China
  • 收稿日期:2009-10-07 修回日期:2010-03-26 出版日期:2010-05-20 发布日期:2010-05-01

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

YAN Zhi-Xin1,2, SONG Yun3, JIANG Ping1,2, WANG Hou-Yu4   

  1. 1. Key Laboratory of Mechanics on Disaster and Environment in Western China(Lanzhou University), Ministry of Education, Lanzhou 730000, P. R. China;
    2. School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, P. R. China;
    3. College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, P. R. China;
    4. Air Force Engineering Design & Research Bureau, Beijing 100077, P. R. China
  • Received:2009-10-07 Revised:2010-03-26 Online:2010-05-20 Published:2010-05-01

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摘要： 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.

关键词: slope vegetation, vegetation for slope protection, mechanical model, frictional root, anchorage root

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.

Key words: slope vegetation, vegetation for slope protection, mechanical model, frictional root, anchorage root

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