The undrained shear strength of soft clay reinforced with group encapsulated lime bottom ash columns
This research was aimed to investigate the role of group encapsulated lime bottom ash columns in improving the shear strength by using laboratory scale model. Kaolin was being used as soil sample and lime bottom ash as the reinforced columns. The reinforc ed kaolin samples were tested by...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
GEOMATE International Society
2018
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/20655/ http://umpir.ump.edu.my/id/eprint/20655/ http://umpir.ump.edu.my/id/eprint/20655/ http://umpir.ump.edu.my/id/eprint/20655/1/The%20undrained%20shear%20strength%20of%20soft%20clay%20reinforced%20with%20group-fkasa-2018.pdf |
| Summary: | This research was aimed to investigate the role of group encapsulated lime bottom ash columns
in improving the shear strength by using laboratory scale model. Kaolin was being used as soil sample and
lime bottom ash as the reinforced columns. The reinforc
ed kaolin samples were tested by using Unconfined
Compression Test (UCT). A total 7 batches of kaolin sample had been tested and each batch consist of 3
specimens represent sample without lime bottom ash column, partially penetration and fully penetration
for
group lime bottom ash
columns. The specimen used was
50 mm i
n diameter and 100 mm in height
. The
height
of the group columns was
60 mm, 80 mm and 100 mm
with 10 mm and 16 mm column diameter
. The group
encapsulated lime bottom ash columns was installed
in
the
triangular pattern, as it was much easier to maintain
the location of installed columns and the spacing in between the columns. The improvement of shear strength
of group encapsulated lime bottom ash columns with area replacement ratio of 12.00 % (1
0 mm column
diameter) and 30.72 % (16 mm column diameter) was 29.00 %, 44.17 %, 29.75 % and 1.00 %, 3.92 %, 7.33 %
at sample penetration ratio,
H
c
/H
s
of 0.6, 0.8 and 1.0 respectively. It can be concluded that the shear strength
of soft clay could be improv
ed by
the
installation of group encapsulated lime bottom ash columns. However,
the improvement of shear strength of 10 mm group encapsulated lime bottom ash columns was increased more
significant compared to 16 mm group encapsulated lime bottom ash columns
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