Effects of root spatial distribution on the elastic-plastic properties of soil-root blocks.

ABSTRACT: Plant roots significantly influence soil properties, especially in soil beyond the limited area surrounding the main root stem. Some bias results may be generated if plastic properties of soil are merely used in evaluating slope stability without considering the effects of plant roots. In this research, effects of root spatial distribution on the elastic-plastic characteristics of soil-root blocks were examined. Triaxial tests and the Duncan-Chang model were used to analyze the correlation between root spatial characteristics and soil elastic-plastic properties. Safety factors of vegetated slopes were calculated to investigate the effect of roots on slope stability. The limit stress of remoulded soil was 103.52% to 231.61% greater than undisturbed soil in shallow soil layers. Increased roo

SUBMITTER: Li Y 

PROVIDER: S-EPMC5429779 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature