Study on Different Methods of Computing Consolidation Coefficient by Excess Pore Pressure Dissipation Datum on CPTU

Abstract:

Based on the different methods of computing the soil consolidation coefficient by excess pore pressure dissipation datum on CPTU, through computing the soil consolidation coefficient by different methods on the datum of CPTU model test and CPTU application research on Pearl River Delta, the applicability on different methods of computing consolidation coefficient by CPTU has been studied. The results show that on the computing value of consolidation coefficient, TB10041-2003 is more conservative; because of poor applicability on Strain Path Method and difficulty for obtaining t100 on Zhu-Xiaolin Method and α on Empirical Coefficient Method, some results can not be solved, so Strain Path Method and Zhu-Xiaolin Method and Empirical Coefficient Method are poor in engineering application; the computing way and the computing result on Zhang-Chenghou Method are similar with Torstensson Method with 50% consolidation degree. The achieved result can provide a foundation for further study for CPTU application research.

• Periodical: Applied Mechanics and Materials (Volumes 90-93)
• Pages: 680-683
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.90-93.680
• Online since: September 2011
• Authors: Yan Chun Tang, Gao Tou Meng, Qiu Feng Mao
• Keywords: Consolidation Coefficient, Consolidation Degree, CPTU

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