Analysis on Laterally Loaded Group Piles by Plaxis 3D Foundation


  • Sri Dewi Bina Nusantara University
  • Gouw Tjie Liong Bina Nusantara University



efficiency factor, group pile lateral capacity, PLAXIS 3D Foundation


It has been known that a group pile lateral capacity is smaller than the sum of each pile capacity composing the group. A reduction factor, also known as efficiency factor, is required to determine the effective lateral capacity of group piles. To the authors’ knowledge, in most geotechnical text books, only the spacing of piles is considered in evaluating the pile group lateral capacity. No consideration on the effects of soil stiffness modulus and the total number of piles forming the group is taken into account. This research tried to investigate the influence of those factors by using geotechnical 3D finite element software, namely Plaxis 3D foundation. It is found that the bigger the number of piles in a group, the lower the efficiency factor is; the higher the soil stiffness modulus, the greater the efficiency is.



Plum Analytics


Gouw, T. L. (2007). Materi Kuliah Teknik Pondasi. Jakarta: Universitas Bina Nusantara.

Gouw, T. L. (2008). Materi Kuliah Aplikasi Komputer Dalam Teknik Sipil. Jakarta: Universitas Bina Nusantara.

Gouw, T. L., Usmanto & Natalius, K.W. (1984). Studi Pressuremeter Menard dan Oyo Serta Aplikasinya Dalam Daya Dukung. Bandung: Universitas Katolik Parahyangan.

PLAXIS b.v. (2002). PLAXIS 3D Foundation Version 2.0. Netherlands: A.A. Balkema Publisher.

Poulos, H.G. dan Davis, E.H. (1980). Pile Foundation Analysis and Design. New York: John Wiley & Sons.






Abstract 487  .
PDF downloaded 583  .