Physical and Analytical Modeling of Tire Mat Reinforced Vegetated Slope

Waste tire mat-like geo-cells can be used as containers filled with soil and planted with vetiver grass. Waste tire and vetiver grass root reinforced soil are unxial and triaxial compressed to study the strength and deformation behavior. Test results indicate that tires and vetiver grass root can increase shear strength and improve ductility of soils. An in situ demonstration test is also conducted by waste tire mat filled with soil and vetiver grass in bioengineering stabilization of a fully weathered mud rock slope. Nonlinear viscosity of the slope soil is taken account into Bingham model that indicates the composite slope soil is fully or partially saturated. The concept of shear layer can be easily emerged by the formula without any assumption. As a result, the progressive deformation of the waste tire mat and vetiver grass root reinforced slope soil is described.