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Volume 35 Issue zk2
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TONG Li-yuan, TU Qi-zhu, DU Guang-yin, CAI Guo-jun. Determination of confined compression modulus of soft clay using piezocone penetration tests[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 569-572.
Citation: TONG Li-yuan, TU Qi-zhu, DU Guang-yin, CAI Guo-jun. Determination of confined compression modulus of soft clay using piezocone penetration tests[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 569-572.
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Determination of confined compression modulus of soft clay using piezocone penetration tests

  • 1. Institution of Geotechnical Engineering, Southeast University, Nanjing 210008, China, 2. China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China

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  • Received Date: July 16, 2013
  • Published Date: November 24, 2013
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  • The existing interpretation methods for piezocone penetration tests (CPTU) are reviewed for prediction of the constrained compression modulus (Es). Three expressway sites in Jiangsu Province are selected for this study. In each site, CPTU tests are performed supplemented by consolidation tests using high-quality undisturbed soft soil samples. Then, Es-predicted methods based on the CPTU tests are compared and evaluated. The new correlations are also developed to predict the values of Es from the cone tip resistance (qc), corrected cone tip resistance (qt) and net cone tip resistance (qn) for soft clay in Jiangsu Province. Furthermore, the correlations are verified by comparing the total settlements predicted from CPTU and the measured settlements for one selected expressway site. The results show that the Senneset et al（1989）method based on the net cone resistance is able to predict Es better than the other methods. The predicted total settlements based on CPTU parameters show a better agreement with the measured ones. Accordingly, the reliability of the application of CPTU for Es and settlement prediction is verified.
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    • References (6)
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    刘松玉, 吴燕开. 论我国静力触探技术（CPT）现状与发展[J]. 岩土工程学报, 2004, 26(4): 553-556. (LIU Song-yu, WU Yan-kai. On the state-of-art and development of CPT in China[J]. Chinese Jounal of Geotechnical Engineering, 2004, 26(4): 553-556. (in Chinese)).
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