Numerical modeling of prefabricated vertical drain for soft clay using ABAQUS
Construction, buildings and infrastructure founded on soft clays are often affected by settlement problem. Therefore, Prefabricated Vertical Drain (PVD) is one of the best solutions to accelerate soil consolidation by shortening the drainage path. In this study, numerical investigation was carried o...
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| Main Authors: | , , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6589/ http://eprints.uthm.edu.my/6589/1/321_Saiful.pdf |
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| Summary: | Construction, buildings and infrastructure founded on soft clays are often affected by
settlement problem. Therefore, Prefabricated Vertical Drain (PVD) is one of the best solutions to
accelerate soil consolidation by shortening the drainage path. In this study, numerical investigation
was carried out to pursue a better understanding of the consolidation of soft clay improved with
PVD. The consolidation process accelerated by vertical drains was analysed using the ABAQUS to
create an elastic model with surcharge of 50 kPa. The aim of this study is to compare the settlement
and the time required to consolidate the soft soil at different drain spacings (1.0m, 1.5m and 2.0m)
for two different lengths of PVD. The results showed that the time required to consolidate the soft
soil (100 % consolidation) at 12 m and 20 m length of PVD for different spacings are in the range
of 3 months to 66 months. Rate of settlements are increasing with the decreasing of drain spacing
for both lengths of PVD. For the excess pore water pressure at 12 m and 20 m length of PVD with
different spacings, it can be concluded that the smaller design spacing, the time required for
consolidation is also decreased |
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