Analysis of vertical bearing capacity of single-row pile group of an offshore platform

Ruihua Zhuo, Run Liu, Xinli Wu, Yangyang Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The vertical bearing capacity of a special pile group of platform in an offshore gas field has been studied. Large diameter d (2.134 m), deep penetration l (96 m), small spacing sa (3.507 m), and only one row piles are the usual characteristics of the pile group foundation in offshore engineering. According to the requirements of the related design code, the super pile group effect has to be considered. However, with the usual design code, when sa/d, the ratio of spacing to diameter, is less than 2.0, there is no way to consider the pile group effect. In this paper, considering the occlusion effect of soil plug of pipe pile, several methods have been introduced to study the super pile group effect of the vertical bearing capacity. These methods include linear elastic theory method, the method recommended by the Code of Pile Foundation in Port Engineering (JTJ254-98), and the method with virtue of the existing pile group model test results. Meanwhile, the plugged and unplugged conditions have been considered, respectively. Through the analysis, the factors of safety in extreme and normal operation states are obtained, and the results satisfy the design specifications.

Original languageEnglish (US)
Title of host publicationApplied Mechanics and Civil Engineering II
Pages54-59
Number of pages6
DOIs
StatePublished - Oct 31 2012
Event2nd SREE Workshop on Applied Mechanics and Civil Engineering, AMCE 2012 - Hong Kong, Hong Kong
Duration: Sep 15 2012Sep 16 2012

Publication series

NameApplied Mechanics and Materials
Volume188
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

Other2nd SREE Workshop on Applied Mechanics and Civil Engineering, AMCE 2012
CountryHong Kong
CityHong Kong
Period9/15/129/16/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Zhuo, R., Liu, R., Wu, X., & Zhao, Y. (2012). Analysis of vertical bearing capacity of single-row pile group of an offshore platform. In Applied Mechanics and Civil Engineering II (pp. 54-59). (Applied Mechanics and Materials; Vol. 188). https://doi.org/10.4028/www.scientific.net/AMM.188.54