A full-scale field study for performance evaluation of axially loaded large-diameter cylinder piles with pipe piles and PSC piles

This paper presents the results from a pile load testing program for a bridge construction project in Louisiana. The testing includes two 54-in. open-ended spun cast concrete cylinder piles, one 30-in. open-ended steel pile and two (30- and 16-in.) square prestressed concrete (PSC) piles driven at two locations with very similar soil conditions. Both cone penetration tests (CPTs) and soil borings/laboratory testing were used to characterize the subsurface soil conditions. All the test piles were instrumented with vibrating wire strain gauges to measure the load distribution along the length of the test piles and measure the skin friction and end-bearing capacity, separately. Dynamic load tests were performed on all test piles at different times after pile installations to quantify the amount of setup with time. Static load tests were also performed on the PSC and open-ended steel piles. Due to expected large pile capacities, the statnamic test method was used on the two open-ended cylinder piles. The pile capacities of these piles were evaluated using various CPT methods (such as Schmertmann, De Ruiter and Beringen, LCPC, Lehane et al. methods). The result showed that all the methods can estimate the skin friction with good accuracy, but not the end-bearing capacity. The normalized cumulative blow counts during pile installation showed that the blow count was always higher for the PSC piles compared to the large-diameter open-ended cylinder pile, regardless of pile size and hammer size. Setup was observed for all the piles, which was mainly attributed to increase in skin frictions. The setup parameters “A” were back-calculated for all the test piles and the values were between 0.31 and 0.41.

[1]  Murad Y. Abu-Farsakh,et al.  Probabilistic CPT method for estimating the ultimate capacity of friction piles , 2007 .

[2]  Tatsunori Matsumoto,et al.  EXPERIMENTAL AND NUMERICAL STUDIES ON PUSH-UP LOAD TESTS FOR SAND PLUGS IN A STEEL PIPE PILE , 2011 .

[3]  Garland Likins,et al.  On the Prediction of Long Term Pile Capacity From End-of-Driving Information , 2004 .

[4]  Murad Y. Abu-Farsakh,et al.  Assessment of Direct Cone Penetration Test Methods for Predicting the Ultimate Capacity of Friction Driven Piles , 2004 .

[5]  Zitao Zhang,et al.  Examining Setup Mechanisms of Driven Piles in Sand Using Laboratory Model Pile Tests , 2015 .

[6]  F. L. Beringen,et al.  Pile foundations for large North Sea structures , 1979 .

[7]  Z. Zhang,et al.  Statistical to Fuzzy Approach toward CPT Soil Classification , 2000 .

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

[9]  Jürgen Grabe,et al.  Numerical investigation of soil plugging inside open-ended piles with respect to the installation method , 2008 .

[10]  Paul W. Mayne,et al.  Cone Penetration Test Based Direct Methods for Evaluating Static Axial Capacity of Single Piles , 2013, Geotechnical and Geological Engineering.

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

[12]  Murad Y. Abu-Farsakh,et al.  EVALUATION OF BEARING CAPACITY OF PILES FROM CONE PENETRATION TEST DATA , 1999 .

[13]  Samuel G. Paikowsky,et al.  A new look at the phenomenon of offshore pile plugging , 1989 .

[14]  Zhongjie Zhang,et al.  Developing a Model to Estimate Pile Setup for Individual Soil Layers on the Basis of Piezocone Penetration Test Data , 2016 .

[15]  Jun Yang,et al.  Base Capacity of Open-Ended Steel Pipe Piles in Sand , 2012 .

[16]  Lyesse Laloui,et al.  AN IMPROVED VOLUME MEASUREMENT FOR DETERMINING SOIL WATER RETENTION CURVES , 2007 .

[17]  Qiming Chen,et al.  Effects of Pile Size on Set-Up Behavior of Cohesive Soils , 2014 .

[18]  Richard J. Jardine,et al.  Time-related increases in the shaft capacities of driven piles in sand , 1997 .

[19]  Yong Tan,et al.  Full-Scale Testing of Open-Ended Steel Pipe Piles in Thick Varved Clayey Silt Deposits along the Delaware River in New Jersey , 2013 .

[20]  Murad Y. Abu-Farsakh,et al.  Field Investigation to Evaluate the Effects of Pile Installation Sequence on Pile Setup Behavior for Instrumented Test Piles , 2016 .

[21]  Sri Sritharan,et al.  Pile Setup in Cohesive Soil. I: Experimental Investigation , 2013 .

[22]  John H. Schmertmann,et al.  GUIDELINES FOR CONE PENETRATION TEST. (PERFORMANCE AND DESIGN) , 1978 .

[23]  F C Townsend,et al.  Side Shear Setup. I: Test Piles Driven in Florida , 2005 .

[24]  Barry Lehane,et al.  Shaft Capacity of Displacement Piles in Clay Using the Cone Penetration Test , 2013 .

[25]  Richard J. Jardine,et al.  Axial Capacity of Offshore Piles in Dense North Sea Sands , 1998 .

[26]  McVayMichael,et al.  New ultimate pile capacity prediction method based on cone penetration test (CPT) , 2012 .

[27]  Alan J. Lutenegger,et al.  Influence of Pile Plugging on Skin Friction in Overconsolidated Clay , 1997 .

[28]  Paul Doherty,et al.  Shaft Capacity of Open-Ended Piles in Clay , 2011 .

[29]  Qiming Chen,et al.  Field investigation of pile setup in mixed soil , 2014 .

[30]  Masataka Takei,et al.  EFFECTS OF SOIL PLUG ON BEHAVIOUR OF DRIVEN PIPE PILES , 1991 .

[31]  Bengt H. Fellenius,et al.  Effective Stress Analysis and Set-up for Shaft Capacity of Piles in Clay , 2008 .

[32]  Murad Y. Abu-Farsakh,et al.  Evaluating pile installation and subsequent thixotropic and consolidation effects on setup by numerical simulation for full-scale pile load tests , 2015 .

[33]  Shu-wang Yan,et al.  Soil Plug Effect Evaluation for Large Diameter Steel Pipe Pile in Offshore Engineering , 2015 .

[34]  Barry Lehane,et al.  Characterisation of the effects of time on the shaft friction of displacement piles in sand , 2014 .

[35]  Jürgen Grabe,et al.  Field measurements regarding the influence of the installation method on soil plugging in tubular piles , 2013 .

[36]  Rodrigo Salgado,et al.  Load Testing of a Closed-Ended Pipe Pile Driven in Multilayered Soil , 2009 .

[37]  Richard J. Jardine,et al.  Effects of Time on Capacity of Pipe Piles in Dense Marine Sand , 1998 .

[38]  Nafiul Haque,et al.  Pile Set-Up for Individual Soil Layers Along Instrumented Test Piles in Clayey Soil , 2015 .

[39]  Jean-Louis Briaud,et al.  MEASURED AND PREDICTED AXIAL RESPONSE OF 98 PILES , 1988 .

[40]  Abolfazl Eslami,et al.  Pile capacity by direct CPT and CPTu methods applied to 102 case histories , 1997 .

[41]  Zhongjie Zhang,et al.  Case Study on Instrumenting and Testing Full-Scale Test Piles for Evaluating Setup Phenomenon , 2014 .

[42]  John H. Schmertmann,et al.  The Mechanical Aging of Soils , 1991 .