Stability of embankment slopes in sandy soils reinforced with geosynthetic materials

This article examines the design of earthworks to improve the stability of embankment slopes in sandy soils reinforced with geosynthetic materials. Ensuring the stability and strength of the earth bed in sandy soils is particularly relevant under increasing train speeds and growing linear and axial loads on existing and newly constructed railway lines. A design solution for an embankment in sandy soils reinforced with geosynthetics is proposed based on calculations of the slope stability coefficient. Calculation schemes for determining additional restraining forces and slope stability when using volumetric geogrid and geotextile are presented. The increase in the stability coefficient is achieved through additional restraining forces provided by the geotextile and each i -th cell of the volumetric geogrid. It has been established that reinforcement of sandy embankment slopes with geosynthetic materials increases the retention force T-hold by 18-25 % due to additional design parameters, while the stability coefficient rises by 14-23 %, ensuring the required condition K ≥ 1.2.