Bio-engineering erosion control systems on engineered slopes of road embankments

摘要

The article presents verity of engineering activities which are aimed at erosion control and slope stability improvement of road and railway embankments. One of major challenges when constructing such structures is accelerated surface erosion which often, also during the exploitation of embankments, could cause severe local stability failures. The negative influence of run-off waters discharging from road directly on slopes is widely observed during construction of most transport roads. The uncontrolled water run-off could significantly increase economic factor, labour, materials and energy supply. The article focuses on alternative methods that could be applied on embankments surfaces to avoid the erosion effects. It gives information how proper design of bio and synthetic reinforcement could improve the quality of earth works. The main activities presented in the paper are proper compaction of built-in soils influencing vegetation establishment, which helps reinforcing earth structures in some cases. Inappropriate soil preparation could cause intensive accelerated erosion on slopes which in final stage could cause overall loss of stability.