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KSCE Journal of Civil Engineering

, Volume 23, Issue 12, pp 5041–5050 | Cite as

Ultimate Lateral Bearing Capacity and Group Effect of Belled Wedge Pile Groups

  • Gangqiang KongEmail author
  • Huaifeng Peng
  • Hongyu Qin
  • Lehua Wang
  • Yongdong Meng
Geotechnical Engineering
  • 16 Downloads

Abstract

Pile foundation of ports, high-voltage transmission line tower are subjected to amount of lateral loading, prediction on lateral bearing capacity is one of the most important projects in structure design. This paper pertains to the model tests on pile-soil interaction of single pile, 2 × 1 and 2 × 2 belled wedge pile groups embedded in sand under lateral load. The load versus displacement, and the soil pressures along depth surrounding piles are measured, the ultimate lateral bearing capacities and group effects of belled wedge piles are analyzed and discussed. An simplified theoretical calculation method on predicting the lateral bearing capacities of shaped pile groups with considering group pile p-y curves, and longitudinal cross-section variation are proposed. The accuracy and reliability of this developed calculation method are verified through the comparative analysis with model test results obtained in this study and previous literature. The predicted values of lateral bearing capacities have suitable agreement with the measured data. It also shows that the ultimate lateral bearing capacities of belled wedge pile group are nearly 1.8–2.0 times of those of traditional belled pile with the same concrete usage in this study’s condition.

Keywords

pile group lateral load group effect p-y curves model test 

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Notes

Acknowledgments

The authors acknowledge financial support from the National Science Foundation of China (No. 51778212).

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Copyright information

© Korean Society of Civil Engineers 2019

Authors and Affiliations

  1. 1.Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of Ministry of EducationChina Three Gorges UniversityYichangChina
  2. 2.College of Civil and Transportation EngineeringHohai UniversityNanjingChina
  3. 3.School of Computer Science, Engineering and MathematicsFlinders UniversityAdelaideAustralia
  4. 4.College of Hydraulic & Environmental EngineeringChina Three Gorges UniversityYichangChina

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