Determination of undrained strength of fine-grained soils by means of SPIT and its application in Turkey

Sivrikaya O., Togrol E.

ENGINEERING GEOLOGY, cilt.86, sa.1, ss.52-69, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 86 Sayı: 1
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1016/j.enggeo.2006.05.002
  • Dergi Adı: ENGINEERING GEOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.52-69
  • Anahtar Kelimeler: Standard Penetration Test, SPT corrections factors, fine-grained soils, undrained shear strength, correlation, Turkey
  • Karadeniz Teknik Üniversitesi Adresli: Hayır

Özet

The Standard Penetration Test (SPT) is one of the oldest and the most common in situ test used in soil explorations. In the recent years with the advent of new technology and techniques in determining the drawbacks in SPT, several researchers have attempted to correlate corrected field measured values with several soil properties. In this context, corrections applied to field values have become critical. In this study a questionnaire including the performance of the standard penetration test and equipment used in practice in Turkey is circulated in order to determine the relevant correction factors. Thus the appropriate corrections are used in acquiring corrected SPT-N values. The relationships between SPT-N and the undrained shear strength (S-u) are examined from the statistical point of view by taking the test types and SPT corrections into consideration, and comparison is made with previous studies. It is observed that SPT corrections play an important role on the obtained correlation equations. In addition, the importance of the effects of test types on the correlations is also emphasized. The Standard Penetration Test is found to be sufficient for reliable assessment of S-u. (C) 2006 Elsevier B.V. All rights reserved.