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AuthorEid, Hisham T.
AuthorBani-Hani, Khaldoon
Available date2024-06-09T07:52:59Z
Publication Date2012
Publication NameGeomechanics and Geoengineering
ResourceScopus
Identifierhttp://dx.doi.org/10.1080/17486025.2011.578675
ISSN1748-6025
URIhttp://hdl.handle.net/10576/55917
AbstractFinite element analysis was performed to study the settlement behaviour of axially loaded piles entirely embedded in nonhomogenous rock. The elastic modulus of the rock mass was taken to increase linearly along the pile length starting from a nonzero value at the ground surface. Cases of pile-rock stiffness ratios that have not been considered in the literature were investigated. Such ratios are typical for reinforced concrete piles bored in sedimentary rocks. Results of the numerical analysis were verified through conducting static loading tests on full-scale piles in rock of well-defined physical and mechanical properties. Charts were developed to predict the elastic settlement of piles in rock. An equation was also introduced to incorporate the effect of rock nonhomogeneity in estimating the depth at which settlement becomes insensitive to the increase of pile length. A complementary numerical analysis utilizing a simple piled foundation system showed that the pile load share is sensitive to the rate of increase in rock stiffness along the pile length. The sensitivity is more pronounced for piled foundations resting on rock with high mass stiffness.
SponsorThe work described in this paper forms part of an applied research project funded by Qatar University and Qatar Foundation, Grant No. QNRF-UREP-2-20-71. This support is gratefully acknowledged.
Languageen
PublisherTaylor and Francis
Subjectelastic analysis; pile load share; pile settlement; piled raft; piles in rock; rock stiffness
TitleSettlement of axially loaded piles entirely embedded in rock - analytical and experimental study
TypeArticle
Pagination139-148
Issue Number2
Volume Number7
dc.accessType Abstract Only


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