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T-bar Penetration Tests in Fujian Cohesive Soil

  • P. Peng
  • G. J. Cai
  • S. Y. Liu
Conference paper

Abstract

The effect of cyclic loading on the strength of the soft soils is considerable in in-situ tests of offshore engineering. Parameters obtained by T-bar cyclic penetration test are crucial to evaluate the undrained shear strength of original and disturbed soil, due to solving the error caused by the very low resistance and the correction of overburden pressure in piezocone test (CPTU). Results of a series of tests which consist of T-bar penetration tests, vane shear tests and CPTU at Fujian hydraulic reclamation sites are presented in this research. The determination of the undrained shear strength (su) based on T-bar penetration tests is validated by the data from vane shear tests. It is shown that the bearing capacity factor (NT-bar) is limited from of 9 to 10, which is identical with the theoretical value. The T-bar penetration test is shown to be effective comparing with CPTU.

Keywords

T-bar penetration test CPTU Hydraulic reclamation Undrained shear strength 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Institute of Geotechnical EngineeringSoutheast UniversityNanjingChina

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