THE INFLUENCE OF THE REINFORCING PROCESS ON THE DISCRETE BASIS OF PAVEMENT DEFLECTION

Вестник СибАДИ

S. A. Matveev¹  E. A. Martynov¹  N. N. Litvinov² 

[1] Siberian state automobile-highway University (SibADI);Siberian state automobilehighway University (SibADI);

关键词: discrete pavement basis;    reinforcement;    geogrid;    reinforcing effect;    elastic basis plate;    deflection;   

DOI  :  10.26518/2071-7296-2017-6(58)-98-106

来源: DOAJ

【 摘 要 】

The active introduction of geosynthetic materials into road construction as the reinforcing structural elements of pavements, restrains by the absence of the evidently-based and experimentally confirmed theory of calculation of  pavements with reinforcing layers. The results of the two-layered base made of crushed stone and sand, which are reinforced by geogrid with steel  fibers in a polyethylene sheath are presented in the article. The deformation  of the reinforced structure regularities are revealed and the deformation  characteristics are obtained. The calculations model of reinforced layer made  of the crushed stone is considered as the multilayered plate on the elastic  basis, which consists of any layers number, which are rigidly linked among  themselves. The lower layer with reinforcement has the physicomechanical  characteristics which are determined by Foygt’s averaging method and which is significantly different from characteristics of overlying layers. The  sand layer performs the role of the elastic basis. This calculations model may be used for the «without reinforcement construction». Thus the lower  reinforcing layer and the layers, which are located in tensile zone are  excluded from the calculation scheme. The Bubnov-Galerkina’s method is  used for the calculation of the multilayered plate on the elastic basis. The  proved coincidence of theoretical and experimental results is received. The reinforcing effect on deflections is established in the research.

【 授权许可】

Unknown