A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design of Geogrids for Road Base Stabilization
Abstract Geogrids are extensively used for the stabilization of paved and unpaved road bases on soft soils. The design methods presently available for use of geogrids in road base stabilization provide no or insufficient information about the required number of layers and the mechanical characteristics of geogrids. Hence, a new design method has been developed which includes the design of geogrids for road base stabilization, based on a 4 layer model: asphalt (binder and wearing course), base, subbase and subgrade. The base and/or subbase thickness has to be defined with one of the available methods such as AASHTO method, Giroud–Han method, Leng–Gabr method, etc. The proposed design method can be used to calculate the tensile forces in the geogrids generated by: self weight of the different layers; wheel load of heavy vehicles; membrane effect at the base (or subbase)–subgrade interface. It is then possible to set the number and the mechanical characteristics of geogrid layers required for absorbing the horizontal forces generated by these three mechanisms.
Design of Geogrids for Road Base Stabilization
Abstract Geogrids are extensively used for the stabilization of paved and unpaved road bases on soft soils. The design methods presently available for use of geogrids in road base stabilization provide no or insufficient information about the required number of layers and the mechanical characteristics of geogrids. Hence, a new design method has been developed which includes the design of geogrids for road base stabilization, based on a 4 layer model: asphalt (binder and wearing course), base, subbase and subgrade. The base and/or subbase thickness has to be defined with one of the available methods such as AASHTO method, Giroud–Han method, Leng–Gabr method, etc. The proposed design method can be used to calculate the tensile forces in the geogrids generated by: self weight of the different layers; wheel load of heavy vehicles; membrane effect at the base (or subbase)–subgrade interface. It is then possible to set the number and the mechanical characteristics of geogrid layers required for absorbing the horizontal forces generated by these three mechanisms.
Design of Geogrids for Road Base Stabilization
Korulla, Minimol (author) / Gharpure, Ashish (author) / Rimoldi, Pietro (author)
Indian Geotechnical Journal ; 45 ; 458-471
2015-09-04
14 pages
Article (Journal)
Electronic Resource
English
Design of Geogrids for Road Base Stabilization
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