[1]SONG Wei-feng,CHEN Li-hua,LIU Xiu-ping.Experiment on Forest Roots Reinforcement Mechanism[J].Research of Soil and Water Conservation,2008,15(02):99-102,106.
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Experiment on Forest Roots Reinforcement Mechanism
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 02
Page number:
99-102,106
Column:
Public date:
2008-04-20
- Title:
- Experiment on Forest Roots Reinforcement Mechanism
- Keywords:
- forest; roots; reinforcement; soil and water conservation
- CLC:
- S157.43
- DOI:
- -
- Abstract:
- With reinforcement theory,an experiment of different confining pressures on root-soil composite and plain soil roots under the same conditions of soil water content and density was carried out by using triaxial test.Four confining pressures of 25,50,75 and 100 kPa were tested.Based on the experiment results,a relationship of stress and strain between root-soil composite and plain soil as well as stress difference Mohrc’s envelope is established.Further,pseudo cohesion of root-soil composite is deduced after analysis of stress difference Mohrc’s envelope of root-soil composite and plain soil.The experiment shows the result that root-soil composite always have greater principal stress than plain soil by a value of when strain reaching a certain extent under various confining pressures,which means roots at various soil depth can increase shearstrength of soils.
- References:
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1900-01-01