TY - JOUR
T1 - Shear load transfer characteristics of drilled shafts in weathered rocks
AU - Kim, Sooil
AU - Jeong, Sangseom
AU - Cho, Sunghan
AU - Park, Innjoon
N1 - Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 1999/11
Y1 - 1999/11
N2 - The load distribution and deformation of drilled shafts subjected to axial loads were evaluated by a load-transfer approach. The emphasis was on quantifying the load-transfer mechanism at the interface between the shafts and surrounding highly weathered rocks based on a numerical analysis and on small-scale tension load tests performed on nine instrumented piles. An analytical method that takes into account the soil coupling effect was developed using a modified Mindlin's point load solution. Based on the analysis, a single-modified hyperbolic model is proposed for the shear transfer function of drilled shafts in highly weathered rocks. Through comparisons with field case studies, it is found that the prediction by the present approach is in good agreement with the general trend observed by in situ measurements, and thus represents a significant improvement in the prediction of load deflections of drilled shafts.
AB - The load distribution and deformation of drilled shafts subjected to axial loads were evaluated by a load-transfer approach. The emphasis was on quantifying the load-transfer mechanism at the interface between the shafts and surrounding highly weathered rocks based on a numerical analysis and on small-scale tension load tests performed on nine instrumented piles. An analytical method that takes into account the soil coupling effect was developed using a modified Mindlin's point load solution. Based on the analysis, a single-modified hyperbolic model is proposed for the shear transfer function of drilled shafts in highly weathered rocks. Through comparisons with field case studies, it is found that the prediction by the present approach is in good agreement with the general trend observed by in situ measurements, and thus represents a significant improvement in the prediction of load deflections of drilled shafts.
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U2 - 10.1061/(ASCE)1090-0241(1999)125:11(999)
DO - 10.1061/(ASCE)1090-0241(1999)125:11(999)
M3 - Article
AN - SCOPUS:0032719831
VL - 125
SP - 999
EP - 1010
JO - Journal of Geotechnical and Geoenvironmental Engineering - ASCE
JF - Journal of Geotechnical and Geoenvironmental Engineering - ASCE
SN - 1090-0241
IS - 11
ER -