Verification of cptu soil types by USCS
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Date
2017-06
Authors
Nor Azlin Binti Ali @ Ibrahim
Journal Title
Journal ISSN
Volume Title
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Abstract
Soil classification is very important in geotechnical engineering. Soil
classification enables worldwide geotechnical engineer to convey the general
characteristics of soil effectively. The soil classification at site is given by CPTU method
without having to bring the sample to the laboratory. The result obtained from CPTU
method is then correlated with the existing texture based classification that is Unified
Soil Classification System (USCS). However, CPT-based SBT may not always agree
with conventional USCS-based soil types and the biggest difference is likely to occur in
the mixed soil region such as sand mixtures and silt mixtures. The study reported in this
thesis examine the correlation between USCS method and CPTU method in order to
compare the names given by these two method. The study involved several tests such as
Standard Proctor, Specific Gravity and CPTU test. It was found out that The CPTU
names and USCS names would never be the similar since they have come from two
distinct systems. Nevertheless, both systems appeared to illustrate name change in their
system due to simple alteration on the mix content.