Experimental study on bi-material and bi-body models under axial compression

YI Cheng; ZHANG Liang; CHEN Zhong-hui; XIE He-ping

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Experimental study on bi-material and bi-body models under axial compression

更新时间：2026-06-25

- Experimental study on bi-material and bi-body models under axial compression
- Vol. 27, Issue 4, (2006)
- 作者机构：
  
  1. 中国矿业大学北京校区,北京,100083
  2. 四川大学,成都,610065
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU43
- Online First：05 November 2013，
  
  Published：2006
- 稿件说明：
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YI Cheng, ZHANG Liang, CHEN Zhong-hui, et al. Experimental study on bi-material and bi-body models under axial compression[J]. 2006, 27(4).
DOI：

YI Cheng, ZHANG Liang, CHEN Zhong-hui, et al. Experimental study on bi-material and bi-body models under axial compression[J]. 2006, 27(4). DOI：

摘要

在工程实际中对坝体与坝基的相互作用问题进行数值模拟时经常按照一体两介质进行分析，这种假设与实际存在出入。为了研究理论与实际的差别和建立正确的分析模型提供理论依据，初步建立了一体两介质与两体两介质力学模型，并分别进行了轴向受压试验。试验结果表明，低强度介质强度与高强度介质的强度之比? 是影响一体两介质力学模型与两体两介质力学模型的重要参量，且影响程度与影响机制在不同力学模型之间存在较大的差别。

Abstract

In the numerical analysis for the soil-dam interaction

the bi-material model (on the interface

two materials possess the same lateral deformation ) is usually used

that causes error between analytical result and practice. In order to discuss the error and set the correct analytical model

the bi-material model and the bi-body model (relative lateral deformation is considered) are proposed. Besides

their samples were tested under axial compression. It is shown that the ratio of strengths ? between two materials is an important parameter for both models

but its effect and the mechanism on each model is different.

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