植被护坡中植物根和岩土相互作用的力学分析

言志信; 宋云; 江平; 王后裕

doi:10.3879/j.issn.1000-0887.2010.05.009

植被护坡中植物根和岩土相互作用的力学分析

doi: 10.3879/j.issn.1000-0887.2010.05.009

言志信^1,2,
宋云³,
江平^1,2,
王后裕⁴

兰州大学西部灾害与环境力学教育部重点实验室,兰州 730000;2.兰州大学土木工程与力学学院,兰州 730000;3.中南林业科技大学建工学院,长沙 410004;4.空军工程设计研究局,北京100077

基金项目: 国家自然科学基金资助项目(10672191);高等学校博士学科点专项科研基金资助项目(20090211110016);甘肃省自然科学基金计划资助项目(096RJZA048)

详细信息

作者简介:
言志信(1961- ),男,湖南人,教授,博士,博士生导师(联系人.E-mail:yzx10@163.com,yanzhx@lzu.edu.cn).

中图分类号: U213.1+58
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出版历程
- 收稿日期: 2009-10-07
- 修回日期: 2010-03-31
- 刊出日期: 2010-05-15

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

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

摘要

摘要: 植被护坡借助植物根系使边坡土体成为土与根的复合材料，从而明显提高边坡土体的抗剪强度，增大边坡的安全稳定性．但是，目前的相关研究仍然停留在定性地分析上．文中试图在定量分析根和岩土相互作用方面进行探索性的工作，通过对草本植物的根系包括木本植物的侧根系与岩土体相互作用的分析，建立摩擦型根-土力学作用模型，并实验验证模型的正确性；对锚固型根亦即木本植物主根-土的作用也建立相互作用的力学模型．两类力学模型的建立为定量地分析植物根系与土体的相互关系提供了重要的理论指导，具有一定应用价值．
- 植被护坡 /
- 植物固坡 /
- 力学模型 /
- 摩擦型根 /
- 锚固型根
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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参考文献(18)

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植被护坡中植物根和岩土相互作用的力学分析

doi: 10.3879/j.issn.1000-0887.2010.05.009

作者简介:
言志信(1961- ),男,湖南人,教授,博士,博士生导师(联系人.E-mail:yzx10@163.com,yanzhx@lzu.edu.cn).

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

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植被护坡中植物根和岩土相互作用的力学分析

doi: 10.3879/j.issn.1000-0887.2010.05.009

作者简介: 言志信(1961- ),男,湖南人,教授,博士,博士生导师(联系人.E-mail:yzx10@163.com,yanzhx@lzu.edu.cn).

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

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出版历程

目录

作者简介:
言志信(1961- ),男,湖南人,教授,博士,博士生导师(联系人.E-mail:yzx10@163.com,yanzhx@lzu.edu.cn).