Study of deformation properties of road foundations of the mixed type intended for the movement of mobile complexes for monitoring and transporting raw materials

Analysis of the conditions movement mobile robotic complexes showed that about 70% time is made up sand, gravel and sandy areas. In winter, it covered with snow. An unsolved problem traffic during transition period, namely, on snow-sandy support bases. This paper devoted to study road soil foundations, i.e. mixed surfaces consisting sand A method for obtaining (mixtures) different percentages described. It shown how measurements density fractional composition were carried out. also shows snow was measured. Examples test fragments are given. procedure measurement deformation properties presented. “Load-deformation” curves provided. The reveals percentage affects curve behaviour. Dependencies given describe process “load deformation” dependence mixtures proposed. generalized includes dependences Goryachkin - Letoshnev Malygin. specifies behaviour an undisturbed foundation, a surface exposed operating mover or utility vehicle. various compositions intact under repeated loading, difference in stresses from 1.25 5 times.