Open AccessSettlement of a pile under cyclic lateral loads in dry sand
Author(s) -
Gang Zheng,
Junbo Sun,
Tianqi Zhang,
Yu Diao
Publication year - 2023
Publication title -
géotechnique/geotechnique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.775
H-Index - 135
eISSN - 1751-7656
pISSN - 0016-8505
DOI - 10.1680/jgeot.21.00107
Subject(s) - pile , centrifuge , settlement (finance) , geotechnical engineering , dry sand , structural load , engineering , geology , structural engineering , computer science , physics , world wide web , nuclear physics , payment
It is found through centrifuge model tests that the cyclic lateral load on a pile reduces the shaft friction and induces additional pile settlement. A theoretical model using the load-transfer method was proposed for the settlement prediction of cyclic laterally loaded piles in dry sand. A simple formula was established to quickly predict the pile settlement in practical engineering. The theoretical model provided a reasonable estimate of the pile settlement, while the predictions from the proposed quick prediction formula were relatively conservative. A new concept of ‘settlement-controlled design’ was proposed to advance the methodology for the design of a pile by considering potential settlement after many cycles of lateral loads. According to the design plane derived from this study, it was suggested that the design-state points should be limited to the convergent zone.