Modelling effects of axial load on behaviour of pile groups in laterally-spreading soil

TY - GEN

T1 - Modelling effects of axial load on behaviour of pile groups in laterally-spreading soil

AU - Knappett, J. A.

AU - Madabhushi, S. P. G.

PY - 2006/7/20

Y1 - 2006/7/20

N2 - Previous research into the behaviour of piled foundations in laterally-spreading soil deposits has concentrated on pile groups that carry small or negligible axial loads. This paper presents dynamic centrifuge test results for 2×2 pile groups with bending and geometric properties similar to real 0.5m diameter tubular steel and solid circular reinforced-concrete field piles. Axial loads applied represented upper-bounds on typical working loads. The simultaneous scaling of the relevant properties controlling both lateral and axial behaviour allows comparisons to be drawn regarding the particular mechanisms of failure that would dominate for each type of pile. Flexible reinforced-concrete piles which tend to carry lower loads were found to be dominated by lateral effects, while steel piles, which are much stiffer and usually carry greater loads are dominated by settlement considerations.

AB - Previous research into the behaviour of piled foundations in laterally-spreading soil deposits has concentrated on pile groups that carry small or negligible axial loads. This paper presents dynamic centrifuge test results for 2×2 pile groups with bending and geometric properties similar to real 0.5m diameter tubular steel and solid circular reinforced-concrete field piles. Axial loads applied represented upper-bounds on typical working loads. The simultaneous scaling of the relevant properties controlling both lateral and axial behaviour allows comparisons to be drawn regarding the particular mechanisms of failure that would dominate for each type of pile. Flexible reinforced-concrete piles which tend to carry lower loads were found to be dominated by lateral effects, while steel piles, which are much stiffer and usually carry greater loads are dominated by settlement considerations.

UR - https://www.crcpress.com/Physical-Modelling-in-Geotechnics-Two-Volume-Set-Proceedings-of-the-Sixth/Ng-Wang-Zhang/p/book/9780415415866

UR - https://www.scopus.com/pages/publications/84857753199

M3 - Conference contribution

AN - SCOPUS:84857753199

SN - 9780415415866

VL - 1-2

SP - 1007

EP - 1012

BT - Physical Modelling in Geotechnics, Two Volume Set

A2 - Ng, C.W.W.

A2 - Wang, Y.H.

A2 - Zhang, L.M.

PB - CRC Press-Taylor & Francis Group

T2 - 6th International Conference on Physical Modelling in Geotechnics, ICPMG'06

Y2 - 4 August 2006 through 6 August 2006

ER -