End bearing capacity of tapered piles in sands using cavity expansion theory

Suman Manandhar, Noriyuki Yasufuku

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The mechanism of tapered pile through small scale model tests has shown the increment of effective failure zone around the pile tip area with increasing tapering angle. On the load-settlement curve during pile penetration, evidences of model tests showed the increase in end bearing behavior by tapered piles. The analytical spherical cavity expansion theory has been utilized to evaluate the end bearing capacity. In the proposed model, the effect of angle of tapering has been introduced to compute the end bearing capacity of tapered piles. The test results and proposed model show that the tapering angle affects the end bearing resistance comparing with conventional straight piles on different types of sands at different relative densities. The studies incorporating model tests, prototype tests and real type pile tests have been validated and predicted well the proposed model.

Original languageEnglish
Pages (from-to)77-99
Number of pages23
JournalMemoirs of the Faculty of Engineering, Kyushu University
Volume71
Issue number4
Publication statusPublished - Dec 1 2011

Fingerprint

Bearing capacity
bearing capacity
Piles
cavity
pile
Sand
sand
Bearings (structural)
model test
penetration
test

All Science Journal Classification (ASJC) codes

  • Energy(all)
  • Atmospheric Science
  • Earth and Planetary Sciences(all)
  • Management of Technology and Innovation

Cite this

End bearing capacity of tapered piles in sands using cavity expansion theory. / Manandhar, Suman; Yasufuku, Noriyuki.

In: Memoirs of the Faculty of Engineering, Kyushu University, Vol. 71, No. 4, 01.12.2011, p. 77-99.

Research output: Contribution to journalArticle

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