Reliability study of pile group with rigid cap based on settlement

WU Peng

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Reliability study of pile group with rigid cap based on settlement

更新时间：2026-06-25

- Reliability study of pile group with rigid cap based on settlement
- Vol. 28, Issue 8, (2007)
- 作者机构：
  
  中南大学土建学院,长沙,410075
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：15 October 2013，
  
  Published：2007
- 稿件说明：
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WU Peng. Reliability study of pile group with rigid cap based on settlement[J]. 2007, 28(8).
DOI：

WU Peng. Reliability study of pile group with rigid cap based on settlement[J]. 2007, 28(8). DOI：

摘要

针对在总结目前的群桩可靠度设计理论完全是基于承载力，提出了对于超大超长群桩基础采用基于沉降的可靠度设计概念，其中沉降计算模式考虑了桩身压缩以及桩端刺入量。在讨论了计算参数的分布规律后，用蒙特卡罗方法进行了可靠度指标的计算。通过一个算例表明，荷载水平增加会导致群桩可靠度指标急剧降低；可接受位移增加，可靠度指标增大，但这种趋势逐渐变缓。

Abstract

Based on the summarization that design theory of reliability is based on bearing capacity wholly

a new concept of reliability design based on settlement aiming at great super-long pile group is presented. Compression of pile body and stab deformation is considered in the settlement calculating model. After discussion about distribution regularity of calculating parameters

index of reliability is calculated by Monte Carlo method. An example shows that index of reliability would decrease with load level increasing; and it would increase with acceptable settlement increasing. But increase trend becomes slower.

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