Instrumentation and axial load testing of displacement piles

Despite the fact that results of many instrumented pile load tests have been reported in the literature, it is difficult to find well-documented instrumentation procedures that can be used when planning a load testing programme. A load test programme designed to investigate various aspects of the design and behaviour of driven steel piles is discussed in the present paper. Although the literature contains information on load testing of instrumented piles driven in either sand or clay, limited information is available regarding their axial load response in transitional soils (soils composed of various amounts of clay, silt and sand). Results are presented for fully instrumented axial load tests performed on an H pile and a closed-ended pipe pile driven into a multilayered soil profile consisting of transitional soils. In addition, the load testing planning, the instrumentation of the piles, the testing methods and the interpretation of the pile testing data are discussed in detail in the context of this an...

[1]  J. Ng,et al.  Behaviour of jacked and driven piles in sandy soil , 2006 .

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

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

[4]  M. Prezzi,et al.  Experimental Investigation of the Combined Load Response of Model Piles Driven in Sand , 2011 .

[5]  L. G. Tham,et al.  Closure of "Observed Performance of Long Steel H-Piles Jacked into Sandy Soils" , 2006 .

[6]  K. Karlsrud,et al.  AXIAL STATIC CAPACITY OF STEEL MODEL PILES IN OVERCONSOLIDATED CLAY. PROCEEDINGS OF THE ELEVENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING, SAN FRANCISCO, 12-16 AUGUST 1985 , 1985 .

[7]  Post-doctoral Formerly SETUP OF DRIVEN PILES IN LAYERED SOIL , 2010 .

[8]  Monica Prezzi,et al.  Assessment of the Axial Load Response of an H Pile Driven in Multilayered Soil , 2009 .

[9]  Samuel G. Paikowsky,et al.  Design and Construction of Three Instrumented Test Piles to Examine Time Dependent Pile Capacity Gain , 2004 .

[10]  L. G. Tham,et al.  Behaviour of jacked and driven piles in sandy soil , 2006 .

[11]  Michael W. O'Neill,et al.  Installation of Pile Group in Overconsolidated Clay , 1982 .

[12]  Rodrigo Salgado,et al.  Shaft Resistance of Drilled Shafts in Clay , 2013 .

[13]  Shinichi Akutagawa,et al.  USE OF MAGNETIC ANISOTROPY SENSOR FOR STRESS MEASUREMENT OF STEEL RIBS USED FOR NATM TUNNEL , 2005 .

[14]  Barry Lehane,et al.  Mechanisms of Shaft Friction in Sand from Instrumented Pile Tests , 1994 .

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

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

[17]  Rodrigo Salgado,et al.  The Role of Analysis in Non-Displacement Pile Design , 2006 .

[18]  R. W. Cooke,et al.  Jacked piles in London Clay: a study of load transfer and settlement under working conditions , 1979 .

[19]  S G Paikowsky,et al.  DEVELOPMENT AND FIELD TESTING OF MULTIPLE DEPLOYMENT MODEL PILE (MDMP) , 2000 .

[20]  Rodrigo Salgado,et al.  Analysis of the shaft resistance of non-displacement piles in sand , 2008 .

[21]  Samuel G. Paikowsky,et al.  Performance Evaluation of an Instrumented Test Pile Cluster , 2000 .

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

[23]  Barry Lehane,et al.  Displacement-pile behaviour in a soft marine clay , 1994 .

[24]  Rodrigo Salgado,et al.  Behavior of Open- and Closed-Ended Piles Driven into Sands , 2003 .

[25]  Rodrigo Salgado,et al.  Analysis of shaft resistance of jacked piles in sands , 2011 .

[26]  俞峰,et al.  Behavior of large capacity jacked piles , 2004 .

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

[28]  C. P. Wroth,et al.  Field studies of an instrumented model pile in clay , 1989 .