Geogrid reinforced road subgrade influence on the pavement evenness

Resilient and Safe Road Infrastructure

土木建筑工程

Šiukius, A.^1 ; Vorobjovas, V.^2 ; Vaitkus, A.^2

JSC ViaCon Baltic, Metalo str. 9a, Vilnius

LT-02190, Lithuania^1

Rd. Research Institute, Vilnius Gediminas Technical University, Linkmenu str. 28, Vilnius

LT-08217, Poland^2

关键词: Geogrid reinforcement;    Geogrids;    Geological conditions;    Geosynthetics;    Reinforced soil;    Road pavements;    Soil reinforcement;    subgrade;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/356/1/012020/pdf
DOI  :  10.1088/1757-899X/356/1/012020

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

As a result of increasing geogrid reinforcement applications in the road subgrade, there are number of projects where geogrid reinforcement is used to control road pavement evenness when there are small layers of peat or mud deeper under road construction. For this task geogrid reinforcement application is not documented but widely used in Lithuania for over a decade. This paper evaluates the long term influence of the geogrid reinforced soil influence on the road surface evenness, when the organic soils stratify in the deeper layers of the subgrade. The geological conditions of the investigated sections are reviewed. The experiment methodology and test results are described, which leads to the conclusions and insights how the pavement evenness depend on the geological conditions and its enhancement. The question is raised about the need for including this geogrid application to the normative documentation. Explanation of the problems that are encountered and the need for further research is given.