Short term performance evaluation of a rural road embankment with different reinforcement constructed on soft soil pertaining to vertical settlement
Construction of roads on soft soil is common in Southern part of Peninsular Mal?ysia especially on its coastal area. Many problems were faced during road constructions when done on soft soils. They are subjected to instability and massive primary and long term consolidation settlements when su...
| Main Author: | |
|---|---|
| Format: | Thesis |
| Language: | English English English |
| Published: |
2005
|
| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/8138/1/24p%20MOHAMAD%20NIIZAR%20ABDURAHMAN.pdf http://eprints.uthm.edu.my/8138/2/MOHAMAD%20NIIZAR%20ABDURAHMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/8138/3/MOHAMAD%20NIIZAR%20ABDURAHMAN%20WATERMARK.pdf |
| Summary: | Construction of roads on soft soil is common in Southern part of Peninsular
Mal?ysia especially on its coastal area. Many problems were faced during road
constructions when done on soft soils. They are subjected to instability and massive
primary and long term consolidation settlements when subjected to even moderate
load increases. Most pavements constructed in such a difficult grounds are improved
with the use of geotextiles. This research is carried out to get a correlation between
the frequency of standard truck loading with the settlement for road embankment
constructed on soft soil using different reinforcements.
Two (2) types of geotextiles are used. They are Rawell Geosynthetic Clay
Liner(RGCL) and Woven Geotextiles(WG). Continuous monitoring and evaluation
are conducted on three (3) different full-scale road embankment models at Research
Centre for Soft Soil (RECESS). All sections are loaded using 5 ton truck during Static
and Dynamic loading. The performance of road in every sections are monitored and
evaluated. From findings, it shows that for frequency of 50 passes per day the
settlements for GCL are 0.030 m and 0.063 m, and for WG are 0.168 m and 0.082 m
for both 0 m and 0.5 m excavated sections respectively. For frequency of 100 passes
per day the settlements for GCL are 0.026 m and 0.068 m, and for WG are 0.168 m
and 0.088 m for both 0 m and 0.5 m excavated sections respectively. From the data,
we can see that the performance of GCL is better compared ~o WG for the 0 m and
0.5 m excavated sections. The values of settlement in every sections are also
increased when the frequency of dynamic load is increased. |
|---|