Dynamic load testing on the bearing capacity of prestressed tubular concrete piles in soft ground

Chuang Yu; Songyu Liu

doi:10.1117/12.839266

25 August 2009 Dynamic load testing on the bearing capacity of prestressed tubular concrete piles in soft ground

Chuang Yu, Songyu Liu

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 73753R (2009) https://doi.org/10.1117/12.839266
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

Dynamic load testing (DLT) is a high strain test method for assessing pile performance. The shaft capacity of a driven PTC (prestressed tubular concrete) pile in marine soft ground will vary with time after installation. The DLT method has been successfully transferred to the testing of prestressed pipe piles in marine soft clay of Lianyungang area in China. DLT is investigated to determine the ultimate bearing capacity of single pile at different period after pile installation. The ultimate bearing capacity of single pile was founded to increase more than 70% during the inventing 3 months, which demonstrate the time effect of rigid pile bearing capacity in marine soft ground. Furthermore, the skin friction and axial force along the pile shaft are presented as well, which present the load transfer mechanism of pipe pile in soft clay. It shows the economy and efficiency of DLT method compared to static load testing method.

Citation Download Citation

Chuang Yu and Songyu Liu "Dynamic load testing on the bearing capacity of prestressed tubular concrete piles in soft ground", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 73753R (25 August 2009); https://doi.org/10.1117/12.839266

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