CALCULATION METHOD OF FLEXIBLE ROAD PAVEMENT REINFORCED WITH POLYMERIC RIGID MULTIAXIAL POLYMER GEOGRIDS

Summary. T Due to the significant increase in traffic loads and increased requirements for the transport and operational condition of highways, strengthening road pavement structures with geogrids is a pressing issue. To date, the issue of creating theoretical foundations for the design, construction and operation of road structures using geosynthetic materials remains open. In this article, the authors propose an improved method for designing and calculating road pavement reinforced with a polymer rigid multiaxially oriented geogrid. To take into account the reinforcement effect due to the use of a polymer rigid multiaxially oriented geogrid TM Tensar, it is proposed to introduce a reinforcement coefficient obtained in the course of experimental studies to the traditional calculation method (GBN B.2.3-37641918-559). The choice of reinforcement material and the effect achieved as a result of its use depend on the type of geogrid, foundation characteristics, strength and deformation properties of underlying soils, as well as on the location of the geogrid in the structure. The resulting reinforcement effect is manifested in an increase in the service life of road structures, an increase in their operational reliability, an improvement in the transport and operational performance of highways, as well as the possibility of reducing the thickness of the road surface layers. Keywords: road blanket, geogrid, strength coefficient, intensity, tension, modulus of elasticity, highway