Analytical method for calculating pile-soil-cushion interaction of composite grounds with piles

CHI Yue-jun; SHEN Wei; SONG Er-Xiang

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Analytical method for calculating pile-soil-cushion interaction of composite grounds with piles

更新时间：2026-06-25

- Analytical method for calculating pile-soil-cushion interaction of composite grounds with piles
- Vol. 23, Issue 5, (2002)
- 作者机构：
  
  清华大学土木工程系,北京,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473.1
- Online First：04 September 2016，
  
  Published：2002
- 稿件说明：
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CHI Yue-jun, SHEN Wei, SONG Er-Xiang. Analytical method for calculating pile-soil-cushion interaction of composite grounds with piles[J]. 2002, 23(5).
DOI：

CHI Yue-jun, SHEN Wei, SONG Er-Xiang. Analytical method for calculating pile-soil-cushion interaction of composite grounds with piles[J]. 2002, 23(5). DOI：

摘要

桩体复合地基的设计中，承载力及沉降的计算一直没有较好地考虑桩、土和垫层的相互作用。根据三者的协同作用，推导出大面积群桩中桩、土的荷载传递基本微分方程并给出其解答。该方法提高了计算速度，土性参数均为常规指标，简便易得。该方法还考虑了桩侧阻随侧向土压力的变化以及垫层、土体压缩模量随压力的变化。与有限元计算结果对比表明了该解答的可行性。能够对桩土分担比以及沉降的计算提供帮助，是一种简便实用的方法。

Abstract

In practice

pile-soil-cushion interaction of composite grounds with piles is not well considered in bearing capacity and settlement estimation. To solve it

based on the relation among pile-soil-cushion

the differential equations of settlements of piles and soil in large-area pile groups together with their solutions are presented. Compared to the results of finite element analysis

these solutions are quite accurate. This method greatly enhances the speed of calculation. The parameters used in this method are all routine soil parameters and are easily obtained through soil test. Also

the stress dependency of both the soil-pile limit friction and the compression modulus is taken into account in the proposed method. This method is practical and applicable to calculate pile-soil stress ratio and settlement of composite grounds with piles.

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