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[1]
Root architecture and tree stability[J] . M. P. Coutts.Plant and Soil . 1983 (1)
NUMERICAL ANALYSIS OF THE MECHANICS OF SOIL REINFORCEMENT
被引：1
作者：
Weifeng SONG Lihua CHEN and Xiuping LIU PhD candidate senior engineer College of Water and Soil Conservation Beijing Forestry University
[1
,2
,3
,1
]
Key Laboratory of Soil and Water Conservation and Combating Desertification Ministry of Education Beijing China Prof Doctor College of Water and Soil Conservation Beijing Forestry University
[100083
,2
]
Key Laboratory of Soil and Water Conservation and Combating Desertification Ministry of Education Beijing China Master College of Water and Soil Conservation Beijing Forestry University
[100083
,3
]
Key Laboratory of Soil and Water Conservation and Combating Desertification Ministry of Education Beijing China
[100083
]
机构：
关键词：
Pinus tabulaeformis;
Root system;
Root-soil composite;
Stress;
Numerical analysis;
Soil reinforcement;
D O I：
暂无
中图分类号：
TU43 [土力学];
学科分类号：
0801 ;
080104 ;
0815 ;
摘要：
Roots affect the soil stress and strain and contribute to soil reinforcement. An analysis of stress and strain in the root-soil composite is presented which combines roots, soils, and an interface element by using the Duncan-Chang E- model and a nonlinear-interface-element model. In this research, a finite element numerical analysis method was applied to simulate the stress field resulting in a composite of Pinus tabulaeformis roots and soils. Results show that roots can transmit the stress from surface soils to deep soils, and can reduce soil stress within the surface soil layer; results also show that the effect of soil reinforcement by roots is limited to surface soils. The Slope Safety Index of a pine slope becomes 10% higher than that of a natural slope, indicating that roots have a significant effect on soil reinforcement.
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页码：230 / 237
页数：8
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