Analysis of parameter sensitivity and rainfall protection of vegetated concrete slab wall design on ecological slope

Abstract

Realizing coordination and unity between the safety and stability of high and steep slopes and ecological protection is a hot topic in the field of engineering. In this study, the combination of vegetated concrete slab walls and anchor cables is proposed to increase the stability of slopes against a background of engineering activities and natural disasters. Through indoor tests and numerical simulations, the mechanical properties and water permeability characteristics of recycled aggregate concrete produced from waste gravel are evaluated, and the correlation between the sensitivity and deformation laws of the slab wall parameters and slope stability are analyzed, as well as the role of the slab wall in achieving rainfall protection. The results show that the recycled aggregate permeable concrete has excellent water permeability while meeting the strength requirements; the thickness, bulk weight, and modulus of elasticity of the slab wall are positively correlated with slope stability, in which the thickness has the greatest influence; in addition, the vegetated concrete slab wall can effectively inhibit rainwater erosion and the formation of sliding surfaces and improve the safety of slopes. This study provides new ideas for resource recycling and the environmentally friendly ecological protection of slopes.