Mechanical Analysis of Interaction Between Plant Roots and Soil Mass in Slope Vegetation

YAN Zhi-xin; SONG Yun; JIANG Ping; WANG Hou-yu

doi:10.3879/j.issn.1000-0887.2010.05.009

Volume 31 Issue 5

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YAN Zhi-xin, SONG Yun, JIANG Ping, WANG Hou-yu. Mechanical Analysis of Interaction Between Plant Roots and Soil Mass in Slope Vegetation[J]. Applied Mathematics and Mechanics, 2010, 31(5): 585-590. doi: 10.3879/j.issn.1000-0887.2010.05.009

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Mechanical Analysis of Interaction Between Plant Roots and Soil Mass in Slope Vegetation

doi: 10.3879/j.issn.1000-0887.2010.05.009

1.
Key Laboratory of Mechanics on Disaster and Environment in Western China(Lanzhou University), Ministry of Education, Lanzhou 730000, P. R. China;

Received Date: 2009-10-07
Rev Recd Date: 2010-03-31
Publish Date: 2010-05-15

Abstract

Abstract

With the help of plant roots, slope vegetation renders the slope soilmass a composite material of soil and roots, thereby conspicuously enhances the shears trength of slope soil mass and the stability of slope. Therefore, slope vegetation is always anoptmial choice forengineers. Nevertheless, present correlative studies still rema in at the stage of qualitative analysis. Some explorations in quantitatively analyzing the in teraction between roots and soil mass were achieved. Through analyzing the in teraction between herbaceous plant roots (in cluding lateral roots of woody plants) and rock and soil mass, amechanical model of the in teraction between frictional roots and soil was estab lished, and its correctness was verified. Mean while, amechanical model of the interaction between anchorage root, namely, woody plant taproot, and soilw as also established. The models provide asignificant theoretical guidance for quantitatively analyzing the in teraction between plant roots and soil and are of certain application value.
- slope vegetation,
- vegetation for slope protection,
- mechanical model,
- frictional root,
- anchorage root

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References(18)

References

[1]	Ali Faisal Haji, Osman Normaniza. Shear strength of soil containing vegetation roots[J]. Soils and Foundations, 2008, 48(4): 587-596. doi: 10.3208/sandf.48.587
[2]	Van de Wiel Marco J, Darby Stephen E. A new model to analyse the impact of woody riparian vegetation on the geotechnical stability of riverbanks[J]. Earth Surface Processes and Landforms, 2007, 32(14): 2185-2198. doi: 10.1002/esp.1522
[3]	YANG Pu, XIANG Zhi-hai, HU Xia-song, et al. Soil reinforcement by vegetation roots[J]. Journal of Tsinghua University, 2009, 49(2): 305-308.
[4]	Roering Joshua J, Schmidt Kevin M, Stock Jonathan D, et al. Shallow landsliding, root reinforcement, and the spatial distribution of trees in the Oregon Coast Range[J]. Canadian Geotechnical Journal, 2003, 40(2): 237-253. doi: 10.1139/t02-113
[5]	欧云峰，王洪亮，王宫. 黄土地区公路路堑高边坡植物防护探讨[J]. 武汉理工大学学报, 2007，29(9): 162-166.
[6]	Morgan R P C, Rickson R J. Slope Stabilization and Erosion Control: a Bioengineering Approach[M]. London: E & F N SPON, an imprint of Chapman & Hall, 1995.
[7]	周跃，徐强，络华松. 乔木侧根对土体的斜向牵引效应Ⅱ—野外直测[J]. 山地学报, 1999, 17(1): 10-15.
[8]	张俊云, 周德培. 红层泥岩边坡生态防护机制研究[J]. 岩石力学与工程学报, 2006, 25(2): 250-256.
[9]	江锋，张俊云. 植物根系与边坡土体间的力学特性研究[J]. 地质灾害与环境保护, 2008, 19(1): 57-61.
[10]	Zheng Y R, Xu G C. Further research on plastic yield criterion for rock soil material[J]. Advances in Constitutive Laws for Engineering Materials, 1989.
[11]	Lade P V. Elastic-plastic stress-strain theory for cohesionless soil with curved yield surface[J]. Inter J Solids and Structure, 1977, 13(11): 1019-1035. doi: 10.1016/0020-7683(77)90073-7
[12]	Yan Z X, Duan J, Jiang P, et al. A study on constitutive model and parameters of rock slope stability[C]Physical and Numerical Simulation of Materials Processing. Switzerland: Trans Tech Publications Ltd, 2008: 1210-1216.
[13]	Liu Z Z, Yan Z X, Duan J. Couple analysis on strength reduction theory and rheological mechanism for slope stability[J]. Journal of Central South University of Technology, 2008, 15(2): 351-356. doi: 10.1007/s11771-008-0379-y
[14]	周德培，张俊云. 植被护坡工程技术[M]. 北京：人民交通出版社，2003.
[15]	周云艳, 陈建, 王晓梅. 植被护坡中植物根系的阻裂增强机理研究[J]. 武汉大学学报(理学版), 2009, 55(5): 613-618.
[16]	Wu T H, Beal P E, Lan C. In-situ test of soil-root systems[J]. J Geotech Engry, 1988, 114(12):1376-1394. doi: 10.1061/(ASCE)0733-9410(1988)114:12(1376)
[17]	Wu T H. Soil Stabilization Using Vegetation Proceedings of a Biotechnical Stabilization[M]. Ann Arbor, Michigan: Work-shop University of Michigan, 1991.
[18]	Riestenberg M M, Sovonick-Dunford. The role of woody vegetation in stabilizing slopes in the Cincinnati area, Ohio [J]. Geol Soc Am, 1983, 94(4): 506-518. doi: 10.1130/0016-7606(1983)94<506:TROWVI>2.0.CO;2