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DEM Study of the Three Dimensional Effect of Soil Arching in Piled-Embankments

  • Yiyue Ma
  • Xilin Lü
  • Maosong Huang
Conference paper
Part of the Sustainable Civil Infrastructures book series (SUCI)

Abstract

Soil arching plays an important role in the design of piled-embankments of transportation facilities. This paper aims to study the three dimensional effect of soil arching in piled-embankments by discrete element simulation. The results show the formation of soil arching and the stress transfer mechanism. The evolution of the stress ratio of pile cap and subsoil was obtained, and the overestimation of the arching effect in plane strain condition was revealed. According to the movements of soil particles, the 3D uneven settlement pattern characteristic was plotted and clearly shows the formation of soil arching. The direction of major principal stress in three typical sections clearly shows the 3D effect of stress transfer mechanism. The obtained results are useful for the deformation calculation of high-speed railway piled embankment.

Notes

Acknowledgements

The financial supports by National Basic Research Program of China (through grant No. 2014CB049100) and National Science Foundation of China (NSFC through grant No. U1433123) are gratefully acknowledged.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Geotechnical EngineeringTongji UniversityShanghaiChina
  2. 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of EducationTongji UniversityShanghaiChina

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