Settlement calculation of new prestressed pipe-pile with rib based on Geddes’ formula

XIONG Hou-ren; NIU Zhi-rong; JIANG Yuan-hai; WU Xiang-song; YANG Jiang-yong

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Settlement calculation of new prestressed pipe-pile with rib based on Geddes’ formula

更新时间：2026-06-25

- Settlement calculation of new prestressed pipe-pile with rib based on Geddes’ formula
- Vol. 32, Issue 12, (2011)
- 作者机构：
  
  1. 嘉兴学院建筑工程学院,浙江,嘉兴,314001
  2. 江西理工大学建筑与测绘工程学院,江西,赣州,341000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：13 December 2011，
  
  Published：2011
- 稿件说明：
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XIONG Hou-ren, NIU Zhi-rong, JIANG Yuan-hai, et al. Settlement calculation of new prestressed pipe-pile with rib based on Geddes’ formula[J]. 2011, 32(12).
DOI：

XIONG Hou-ren, NIU Zhi-rong, JIANG Yuan-hai, et al. Settlement calculation of new prestressed pipe-pile with rib based on Geddes’ formula[J]. 2011, 32(12). DOI：

摘要

在Geddes应力公式的基础上，对新型带肋预应力管桩的环状凸肋产生的影响做了假设：环状凸肋的受力可等效为对其下部土的挤密作用，即产生附加应力；为了方便计算，把该种附加应力简化沿环状凸肋两倍下部长度矩形分布的桩侧摩阻力，并推导出了适合新型带肋预应力管桩单桩沉降的计算公式；然后用Matlab软件进行编程计算。计算结果与现场试验结果相近，可做为工程估算。

Abstract

Based on Geddes’ stress formula

the hypotheses are designed aiming at the influence of annular flange rib of new prestressed pipe-pile with rib: The force of annular flange rib can be equivalent to the compaction to its lower part soil

i.e. additional stress; for the convenience of calculation

this kind of additional stress is simplified to the rectangular distribution skin friction resistance along double length of the lower part of annular flange rib; and the formula for calculating the settlement suitable for the single pile of new prestressed pipe-pile with rib is given; then Matlab software is used to program calculations. The calculated results are consistent with the experimental test results; so they can be used to estimate for the project.

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