[1] Univ Cambridge, Dept Engn, Cambridge CB2 1TN, England
来源:
GEOTECHNIQUE
|
2004年
/
54卷
/
03期
关键词:
piles;
failure;
case history;
centrifuge modelling;
liquefaction;
D O I:
10.1680/geot.54.3.203.36349
中图分类号:
P5 [地质学];
学科分类号:
0709 ;
081803 ;
摘要:
This paper proposes an alternative mechanism of pile failure in liquefiable deposits during earthquakes. This failure mechanism, based on pile buckling, is formulated by back-analysing 14 case histories of pile foundation performance during earthquakes and verified using dynamic centrifuge tests. A new parameter, the slenderness ratio of a pile, is introduced to classify pile performance in liquefiable soils. This parameter fits very well both the reported case histories and the centrifuge test results.