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Effect of Slope on p-y Curves for Laterally Loaded Piles in Soft Clay

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Abstract

Pile foundations are often subject to lateral loading due to various forces on a variety of structures like high rise buildings, transmission towers, power stations, offshore structures and highway and railway structures. The present investigation is to study the effect of slopes on p-y curves (where p is the static soil reaction and y is the pile deflection) due to static lateral loading in soft clay (Consistency index Ic = 0.42). A series of laboratory model tests were carried out on the instrumented model pile on sloping ground (slopes of 1V:1H, 1V:1.5H, 1V:2H, 1V:3H and 1V:5H) and with varying embedment length to diameter ratio (L/D) of 20, 25 and 30. From the experimental results, the bending moment curves along the pile shaft are double differentiated to obtain the soil resistance (p) and double integrated to obtain the deflection (y) using curve fitting method. New p-y curves for piles located on crest of soft clay with different sloping ground surface under static lateral loading are developed. Moreover, the effect of sloping angles on proposed p-y curves was studied.

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Authors and Affiliations

  1. Department of Civil Engineering, National Institute of Technology, Tiruchirappalli, 620015, India

    Deendayal Rathod & K. Muthukkumaran

  2. Department of Civil Engineering, Indian Institute of Science, Bangalore, 560012, India

    T. G. Sitharam

Authors
  1. Deendayal Rathod
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  2. K. Muthukkumaran
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  3. T. G. Sitharam
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Correspondence to Deendayal Rathod.

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Rathod, D., Muthukkumaran, K. & Sitharam, T.G. Effect of Slope on p-y Curves for Laterally Loaded Piles in Soft Clay. Geotech Geol Eng 36, 1509–1524 (2018). https://doi.org/10.1007/s10706-017-0405-7

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  • DOI: https://doi.org/10.1007/s10706-017-0405-7

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