Shear load transfer characteristics of drilled shafts socketed in rocks

Sangseom Jeong, Sangyong Ahn, Hoonil Seol

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This paper presents a shear load transfer function and an analytical method for estimating the load transfer characteristics of rock-socketed drilled shafts subjected to axial loads. A shear load transfer (f-w) function of rock-socketed drilled shafts is proposed based on the constant normal stiffness (CNS) direct shear tests. It is presented in terms of the borehole roughness and the geological strength index (GSI) so that the structural discontinuities and the surface conditions of the rock mass can be considered. An analytical method that takes into account the coupled soil resistance effects is proposed using a modified Mindlin's point load solution. Through comparisons with load test results, the proposed methodology is in good agreement with the general trend observed in in situ measurements and represents an improvement in the prediction of the shear behavior of rock-socketed drilled shafts.

Original languageEnglish
Pages (from-to)41-54
Number of pages14
JournalRock Mechanics and Rock Engineering
Volume43
Issue number1
DOIs
Publication statusPublished - 2010 Feb

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology
  • Geology

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