Settlement prevision of piles under vertical load

IF 0.3 Q4 ENGINEERING, GEOLOGICAL Geotechnical Engineering Pub Date : 2003-10-01 DOI:10.1680/GENG.2003.156.4.183
F. Castelli, E. Motta
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引用次数: 21

Abstract

This paper presents a simplified non-linear method to predict the behaviour of a single pile and/or a pile group under vertical loads. The evaluation of the non-linear settlement is based on an incremental procedure taking into account the decrease of the stiffness parameters with increase of the applied load. The solution, derived first for a single pile, was extended to the case of a pile group, introducing an equivalent pier interacting with the surrounding soil by means of hyperbolic load transfer functions. To take into account group action in the soil–pile interaction, the stiffness of the equivalent pier has been modified and linked to that of the single pile, and a simple expression is also proposed. The numerical results obtained by the proposed method were compared with measurements derived from fullscale load tests on single piles and pile groups, and it has been shown that this procedure can be used successfully for prediction of non-linear pile group settlement. As the method can be easily co...
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桩在竖向荷载作用下的沉降预测
本文提出了一种简化的非线性方法来预测单桩和/或群桩在竖向荷载作用下的行为。非线性沉降的评估是基于考虑刚度参数随外加荷载的增加而减小的增量过程。首先推导了单桩的解,然后将其推广到群桩的情况,通过双曲荷载传递函数引入等效墩与周围土体的相互作用。为了考虑桩土相互作用中的群作用,对等效墩的刚度进行了修正,并与单桩的刚度联系起来,提出了一种简单的表达式。将该方法的数值计算结果与单桩和群桩全尺寸荷载试验结果进行了比较,结果表明,该方法可以成功地用于非线性群桩沉降的预测。由于该方法可以很容易地…
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
发文量
0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
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