An Analytical Study of Flexible Pavement With or Without Geo-textile
The study presents an analytical study of flexible pavement with or without geo-textile and to analyze or determine the increase in the performance of pavement using geo-textile. It has been hypothesized that in the absence of a geo-textile, intermixing between base course and sub-grade may oc...
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| Main Author: | |
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| Format: | Final Year Project Report / IMRAD |
| Language: | en |
| Published: |
Universiti Malaysia Sarawak, (UNIMAS)
2004
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/48033/1/Francis%20Lau%20ft.pdf http://ir.unimas.my/id/eprint/48033/ |
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| Summary: | The study presents an analytical study of flexible pavement with or without geo-textile and
to analyze or determine the increase in the performance of pavement using geo-textile. It
has been hypothesized that in the absence of a geo-textile, intermixing between base course
and sub-grade may occur. By providing geo-textile, sub-base and sub-grade can be
prevented from intermixing. Consequently, it will increase structural capacity of flexible
pavement. To evaluate the increased performance of flexible pavement with geo-textile, a
finite element (FE) response model has been developed to describe stress and displacement
response parameters for geo-textile-reinforced flexible pavement systems, where the geo�textile is placed between sub-base and sub-grade layer. Two-dimensional isoparametric
elements, which are consisting of eight-node quardrilateral, have been developed and
applied to stress and deflection analysis. A Fortran program is developed in the study to
overcome the computational burden imposed by the requirement of a deep bottom
boundary in the finite element analysis of pavements. Stress and displacement have been
calculated for both flexible pavements with and without geo-textile. The results calculated
for both type of pavements are compared in order to determine for an increasing in the
performance of pavement using geo-textile. Based on the results obtained, it showed that
there is a small reduction in stress and displacement generated in the flexible pavement
using geo-textile. |
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