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Position: Home > Articles > A study on the soil mechanical role of tree roots in the stability of slopes Journal of Soil and Water Conservation 1990 (3) 7-14+50

林木根系固坡土力学机制研究

作  者:
解明曙
关键词:
根系土;土一根间静摩擦系数;森林固坡能力
摘  要:
作者在综合国内外现有研究成果基础上,提出用全根系拉拔试验的综合μ_x 法,较好地解决了土质坡上林木根系固结能力的测定计算方法。它是从建立根—土静摩擦阻力极限平衡方程入手,从理论上推导出全根系固坡力学机制的计算模式,即通过计算根—土间静摩擦系数μ值,求解根系对土壤抗剪强度的增量△τ_R 值。为生产上运用林木措施固结土质坡面,正确测算森林固土效益,预报生物措施固坡能力提供了较好的科学依据。
译  名:
A study on the soil mechanical role of tree roots in the stability of slopes
作  者:
Xie Mingshu (Department of Soil and Water Conservation,Beijing Forestry University)
关键词:
roots contained soil;;Xtatic friction factor of soil-roots powers of forestry in fixing slopes
摘  要:
This paper has put forward a new calculation model that can be used to determine powers of tree and bush in fixing slopes.The author has tested pulling roots by what is simply called the complex μ_x method using UILmus pumila which grows widely in the loess area of China.Th- rough setting up the balance equation of the maximum static frictional re- sistance between soil and roots,the solution for equation of the complex static friction factor“μ”has been obtained.At last the“Δτ_R”value which is for tree roots to increase the shear strength of the soil has been deter- mined.The study results provide scientific basis for production and fore- casting powers of forestry in fixing slopes.

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