Experimental research on deformation of rocks in direct tension and compression

YU Xian-bin; WANG Qing-rong; LI Xin-yi; XIE Qiang; NA Yu-kang; SONG Zhan-ping

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Experimental research on deformation of rocks in direct tension and compression

更新时间：2026-06-25

- Experimental research on deformation of rocks in direct tension and compression
- Vol. 29, Issue 1, (2008)
- 作者机构：
  
  1. 昆明理工大学国土资源工程学院,昆明,650093
  2. 昆明理工大学交通工程学院,昆明,650093
  3. 重庆大学土木工程学院,重庆,400045
  4. 昆明理工大学机械工程学院,昆明,650093
  5. 西安建筑科技大学土木工程学院,西安,710055
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：18 July 2013，
  
  Published：2008
- 稿件说明：
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YU Xian-bin, WANG Qing-rong, LI Xin-yi, et al. Experimental research on deformation of rocks in direct tension and compression[J]. 2008, 29(1).
DOI：

YU Xian-bin, WANG Qing-rong, LI Xin-yi, et al. Experimental research on deformation of rocks in direct tension and compression[J]. 2008, 29(1). DOI：

摘要

采用自行研制的可对同一岩石试样进行单轴压缩和直接拉伸的试验装置，对3种岩石进行了压缩和直接拉伸试验。结果表明，这3种岩石的压缩弹性模量均大于拉伸弹性模量，压缩与拉伸弹性模量之比分别为1.1，1.4，2.5。压缩泊松比也大于拉伸泊松比。研究表明：直接拉伸下切线泊松比随荷载的增加而减小，与压缩下泊松比的变化相反。

Abstract

Laboratory tests of direct tension and compression were conducted for three rock types with a testing unit that can perform both compression and direct tension on a same rock sample. The results showed that for most rock samples

the obtained Young’s moduli in compression EC were greater than those in tension ET. For Gaofeng limestone

the EC/ET ratio was 1.1; for Gaofeng pyrite

the ratio was 1.4; and for Songshujiao marble

the ratio was 2.5. The average values of Poisson’s ratios in compression were also greater than the values in tension. It was also found that the tangent Poisson’s ratios in tension decreased with the increasing applied loading

which was opposite to the behavior in compression.

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XIE Qiang

YU Xian-bin

ZHANG Yong-xing

NA Yu-kang

YU Xian-bin

WANG Qing-rong

SONG Zhan-ping

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Related Institution

Centro de Geotecnia, Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisbon

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