考虑中间主应力影响时的圆筒形孔扩张问题的弹塑性解

doi:10.11835/j.issn.1674-4764.2002.02.009

首页 > 过刊浏览>2002年第24卷第2期 >35-38. DOI:10.11835/j.issn.1674-4764.2002.02.009

考虑中间主应力影响时的圆筒形孔扩张问题的弹塑性解
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                        10.11835/j.issn.1674-4764.2002.02.009
                    
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中图分类号:U451.2
基金项目:国家自然科学基金资助项目 (5 98790 12 )

Influence of Neutral Principal Stress on the Elastic-Plastic Solution of Expansion of Cylinder Cavities

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摘要:

Tresca强度理论、Mohr-Coulomb强度理论在求解圆筒形孔扩张问题时的弹塑性解并没有考虑中间主应力的影响。本文首次考虑中间主应力影响时求解圆筒形孔扩张问题的弹塑性解。计算表明考虑中间主应力时圆筒形孔的塑性区半径有明显减少。据此可以充分发挥岩土体自身的承载能力，对岩土工程有重要意义。

Abstract:

In the elastic-plastic solution of expansion of cylinder cavities based on Tresca strength criterion and Mohr-Coulomb strength criterion, the influence of neutral principal stress is not considered. In this paper the influence of neutral principal stress on elastic-plastic solution of expansion of cylinder cavities is considered. The calculation shows that the radius and displacement of plastic zone will reduce when the neutral principal stress is considered. The conclusions are of practical significance for geotechnical engineering.

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周小平张永兴等.考虑中间主应力影响时的圆筒形孔扩张问题的弹塑性解[J].土木与环境工程学报（中英文）,2002,24(2):35-38. ZHOU Xiao ping, ZHANG Yong xing, WANG Jian hua . Influence of Neutral Principal Stress on the Elastic-Plastic Solution of Expansion of Cylinder Cavities[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2002,24(2):35-38.10.11835/j. issn.1674-4764.2002.02.009

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最后修改日期:2002-01-16
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