Load Testing of a Closed-Ended Pipe Pile Driven in Multilayered Soil

Piles are often driven in multilayered soil profiles. The accurate prediction of the ultimate bearing capacity of piles driven in mixed soil is more challenging than that of piles driven in either clay or sand because the mechanical behavior of these soils is better known. In order to study the behavior of closed-ended pipe piles driven into multilayered soil profiles, fully instrumented static and dynamic axial load tests were performed on three piles. One of these piles was tested dynamically and statically. A second pile served as reaction pile in the static load test and was tested dynamically. A third pile was tested dynamically. The base of each pile was embedded slightly in a very dense nonplastic silt layer overlying a clay layer. In this paper, results of these pile load tests are presented, and the lessons learned from the interpretation of the test data are discussed. A comparison is made of the ultimate base and limit shaft resistances measured in the pile load tests with corresponding values predicted from in situ test-based and soil property-based design methods.

[1]  Harry G. Poulos,et al.  Pile foundation analysis and design , 1980 .

[2]  K Karlsrud,et al.  Bearing capacity of driven piles in sand, the NGI approach , 2005 .

[3]  M Bustamante,et al.  THE BEARING CAPACITY OF A PILE , 1980 .

[4]  Rodrigo Salgado,et al.  Determination of bearing capacity of open-ended piles in sand , 2003 .

[5]  O. Nusier,et al.  Axial compressive capacity of driven piles in sand: a method including post-driving residual stresses , 2001 .

[6]  Bengt H. Fellenius,et al.  Static loading test on a 45 m long pipe pile in Sandpoint, Idaho , 2004 .

[7]  Xiangtao Xu,et al.  Investigation of the end bearing performance of displacement piles in sand , 2007 .

[8]  James A. Schneider,et al.  The UWA-05 method for prediction of axial capacity of driven piles in sand , 2005 .

[9]  Garland Likins,et al.  Dynamic Determination of Pile Capacity , 1985 .

[10]  Barry Lehane,et al.  Pile and penetrometer end bearing resistance in two-layered soil profiles , 2008 .

[11]  Jean-Louis Briaud,et al.  Piles in Sand: A Method Including Residual Stresses , 1984 .

[12]  Tadao Hirano,et al.  Performance of Axially Loaded Steel Pipe Piles Driven in Soft Rock , 1995 .

[13]  Bengt H. Fellenius,et al.  Determining the Resistance Distribution in Piles Part 1. Notes on Shift of No-Load Reading and Residual Load , 2002 .

[14]  K Karlsrud,et al.  Bearing capacity of driven piles in clay, the NGI approach , 2005 .

[15]  D. White,et al.  Comparing CPT and pile base resistance in sand , 2005 .

[16]  Rodrigo Salgado,et al.  SETUP OF DRIVEN PILES IN LAYERED SOIL , 2010 .

[17]  M. Randolph,et al.  Design of driven piles in sand , 1994 .

[18]  Bengt H. Fellenius,et al.  From Strain Measurements to Load in an Instrumented Pile , 2001 .

[19]  Abdallah I. Husein Malkawi,et al.  ESTIMATION OF POST-DRIVING RESIDUAL STRESSES ALONG DRIVEN PILES IN SAND , 2000 .

[20]  H. J. Kolk,et al.  Design criteria for pipe piles in silica sands , 2005 .

[21]  Rodrigo Salgado,et al.  Computation of Cavity Expansion Pressure and Penetration Resistance in Sands , 2007 .