Pengelasan tanah adalah sangat penting dalam kejuruteraan geoteknik. Pengelasan tanah membolehkan jurutera geoteknikal di seluruh dunia untuk menyampaikan ciri-ciri umum tanah lebih berkesan. Pengelasan tanah di tapak diberikan oleh kaedah CPTU tanpa perlu membawa sampel ke makmal. Keputusan yang diperolehi daripada kaedah CPTU kemudiannya dikaitkan dengan klasifikasi yang sedia ada tekstur berdasarkan yang Sistem Pengelasan Tanah Bersatu (USCS). CPT berasaskan SBT mungkin tidak sentiasa bersetuju dengan jenis tanah berasaskan USCS konvensional dan perbezaan yang paling besar mungkin berlaku di kawasan tanah bercampur seperti campuran pasir dan campuran kelodak. Kajian yang dilaporkan dalam tesis ini mengkaji korelasi antara kaedah USCS dan kaedah CPTU untuk membandingkan nama yang diberi oleh kedua-dua kaedah. Kajian ini melibatkan beberapa ujian seperti “Standard Proctor”, Graviti Tentu dan ujian CPTU. Ia telah mendapati bahawa nama-nama CPTU dan USCS tidak akan menjadi sama kerana mereka datang dari dua sistem yang berbeza. Walau bagaimanapun, kedua-dua sistem hadir menggambarkan perubahan nama dalam sistem mereka kerana pengubahan mudah pada kandungan campuran.
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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.
Verification of CPTU soil types by USCS / Nor Azlin Ali @ Ibrahim