State of Practice for the Design of Socketed Piles in Rock

State of Practice for the Design of Socketed Piles in Rock
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发表时间:
1999
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影响因子:
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通讯作者:
P. Pells
P. Pells
中科院分区:
其他
文献类型:
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作者:
P. Pells

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总结了近三十年来嵌岩桩轴向和水平荷载设计方法的发展。提出了影响轴向载荷设计的关键因素,并详细介绍了三种合适的设计方法,同时给出了工程实例。介绍了嵌岩桩极限状态设计概念的实现。作者的结论是,Rowe和Armitage的方法是目前最令人满意的设计工具,尽管人们承认,基于控制侧剪的基本参数的方法在评估嵌岩桩性能方面具有重要价值。关于岩石承窝的横向载荷的实践状况远不如轴向载荷令人满意。弹性位移和旋转的计算可以使用Carter和Kulhawy开发的方程进行。然而,用于评估横向载荷的极限强度能力的方法发展得很差。
Development over the past three decades in design methods for axial and lateral loads on rock socketed piles are summarised. The key factors which influence design for axial loading are presented and detailed descriptions are given of three appropriate design methods, together with worked examples. The implementation of Limit State design concepts for socketed piles is described. The writer concludes that the method by Rowe and Armitage is currently the most satisfactory design tool, although it is acknowledged that methods based on fundamental parameters controlling side shear have substantial value in assessing socketed pile behaviour. The state of practice in regard to lateral loading of rock sockets is substantially less satisfactory than for axial loading. Calculation of elastic displacements and rotations can be made using equations developed by Carter and Kulhawy. However, methods for assessing ultimate strength capacity for lateral loading are poorly developed.