Calculation of the risk of destruction of the pavement by permissible stresses in monolithic layers

Abstract

The article presents a calculation of the strength of the road structure according to the allowable tensile stresses during bending in monolithic layers. The test is carried out according to the criterion of maximum tensile stresses on the sole of the layer along the load axis. The continuity of monolithic layers will not be violated if the tensile stresses during repeated bending do not exceed the permissible stresses (for the material of this layer), established taking into account fatigue phenomena. Therefore, for layers with an organic binder, the test is carried out according to the criterion of maximum tensile stresses on the sole of the layer along the load axis. This work is aimed at establishing the probability of cracks in the monolithic layer during bending, depending on the qualitative condition of the structures and changes in soil moisture of the roadbed in the spring period. It is taken into account that the distribution of tensile stresses in a monolithic layer during bending does not contradict the normal distribution law.

Keywords

• highway
• road surface
• design
• risk
• transport load
• damage
• crack
• bending tension