Finite element analysis of functions of cushion of cement flyash gravel pile composite foundation

ZHANG Jian-wei; DAI Zi-hang

doi:10.16285/j.rsm.2005.s1.041

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Finite element analysis of functions of cushion of cement flyash gravel pile composite foundation

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- Finite element analysis of functions of cushion of cement flyash gravel pile composite foundation
- Issue S1, Pages: 171-174(2005)
- 作者机构：
  
  1. 福州大学环境与资源学院
  2. 福州大学环境与资源学院,福州,350002
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2005.s1.041
  CLC： TU470.3
- Published：2005
- 稿件说明：
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[1]张建伟,戴自航.CFG桩复合地基褥垫层效用的有限元分析[J].岩土力学,2005(S1):171-174.

ZHANG Jian-wei, DAI Zi-hang. Finite element analysis of functions of cushion of cement flyash gravel pile composite foundation[J]. 2005, (S1): 171-174.
[1]张建伟,戴自航.CFG桩复合地基褥垫层效用的有限元分析[J].岩土力学,2005(S1):171-174. DOI： 10.16285/j.rsm.2005.s1.041.

ZHANG Jian-wei, DAI Zi-hang. Finite element analysis of functions of cushion of cement flyash gravel pile composite foundation[J]. 2005, (S1): 171-174. DOI： 10.16285/j.rsm.2005.s1.041.

摘要

复合地基上褥垫层的设计是桩体复合地基设计的关键技术

通过有限元数值模拟分析

得到了桩土沉降与荷载之间的关系

获得了褥垫层厚度及其压缩模量对桩土应力比、桩土沉降等的影响规律。该研究为复合地基褥垫层厚度的设置及选择和配制合理的垫层材料提供了依据

有利于复合地基的优化设计。

Abstract

The design of cushion is the key to the design of a composite foundation. Through the finite element analysis

the relationship of the settlements of the pile and soil with the load is found. And the influence laws of the cushion thickness and its compression modulus on the stress ratio of pile-soil and the settlements of pile and soil are obtained. The research results will provide a theoretical evidence for the suitable selection of the cushion thickness and its materials and will be beneficial to the optimum design of composite foundations.

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