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A spherical cavity expansion-sliding friction calculation model on penetration of pressed-in piles

ZHANG Ming-yi1, DENG An-fu2 ( 1. Qingdao Institute of Architecture and Engineering, Qingdao 266033, China; 2. Chongqing University, Chongqing 400045, China )  
A new method to calculate penetration resistance of pressed-in piles, namely spherical cavity expansion-sliding friction model, is presented. The tip resistance and the side sliding friction resistance of pile are calculated respectively. A computer program, which can plot the calculating curves, is worked out. The calculating result shows that there is a good agreement between the calculated curves and the measured ones.
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