Prediction and Analysis of Behaviour of Laterally Loaded Single Piles in Improved Gravel Soil

  • Guangming Yu
  • Weiming GongEmail author
  • Meihe Chen
  • Guoliang Dai
  • Yuchen Liu
Research paper


To better understand the mechanism of development of lateral resistance of single drilled piles installed in improved soil profile. Side-by-side static load tests were performed on the piles installed in virgin soil profile and improved soil profile with the soil ahead of the pile cement-improved. Parametric three-dimensional finite element analyses were performed to study the effect of grouting radius. More soils at the side of piles make a critical contribution to resisting lateral loads due to the influence of improved soil ahead of the pile. A new hyperbolic py function that modifies the initial subgrade modulus and the ultimate lateral soil resistance is proposed based on the finite element analyses to account for the effect of the cement improvement. The proposed py method is capable of predicting laterally loaded pile response in cement-improved soil profiles as measured in the static load tests. The accuracy of the proposed py model is appropriate as shown by comparing measured and calculated the lateral behaviour of the single pile.


Lateral load transfer method Static load tests py curve Finite element modelling Lateral soil resistance 



The authors gratefully acknowledge the financial support of the National Key Research Program of China (2017YFC0703408) and National Natural Science Foundation of China (51678145). These financial supports are gratefully acknowledged.


The research work is supported by National Key Research Program of China (2017YFC0703408) and National Natural Science Foundation of China (51678145).


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Copyright information

© Iran University of Science and Technology 2018

Authors and Affiliations

  • Guangming Yu
    • 1
  • Weiming Gong
    • 1
    Email author
  • Meihe Chen
    • 1
  • Guoliang Dai
    • 1
  • Yuchen Liu
    • 1
  1. 1.Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil EngineeringSoutheast UniversityNanjingChina

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