Shearing rate effects on research centre for soft soils (RECESS) clay using cone penetration test (CPT)
A wide range of industrial applications, on land and offshore, require the solution of time domain problems and an associated understanding of rate effects in clay soils. In recent decades many researchers have examined the correlation between shear strength of soils and variation of shear strain ra...
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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/6581/ http://eprints.uthm.edu.my/6581/1/313_Azranasmarazizi.pdf |
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| Summary: | A wide range of industrial applications, on land and offshore, require the solution of time
domain problems and an associated understanding of rate effects in clay soils. In recent decades
many researchers have examined the correlation between shear strength of soils and variation of
shear strain rate and it is generally accepted that the strength increases by 1-5% for each order of
magnitude increase in shear strain rate. This paper discusses the effects of penetration rate on the
penetration resistance (qc) by using cone penetration test (CPT) test setup. The research had been
conducted at RECESS and cone penetration test were used in three selected range of rate which
were 0.5 cm/s, 1cm/s and 5cm/s. In addition, Mackintosh probe test had been considered as
comparison with CPT test for the unconfined compressive strength. The result shows different
penetration rate influenced the soil shear strength. For the slowest rate (0.5 cm/s), the shear strength
was approximately 0.15% less compared to the standard rate (2 cm/s). However, for the highest rate
(5 cm/s), the shear strength was 0.22% more than the reference rate (0.5 cm/s). In conclusion, it is
suggested that the RECESS clay soil influenced by the rate effect and in agreement with previous
research findings |
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