Numerical Simulation Study on Wetting Deformation of Coarse Aggregate Materials

杨贵; 刘汉龙; 朱俊高

doi:10.13409/j.cnki.jdpme.2012.05.008

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Numerical Simulation Study on Wetting Deformation of Coarse Aggregate Materials

更新时间：2025-12-11

- Numerical Simulation Study on Wetting Deformation of Coarse Aggregate Materials
- Vol. 32, Issue 5, Pages: 535-538+551(2012)
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- DOI：10.13409/j.cnki.jdpme.2012.05.008
  CLC： V41
- Published：2012
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[1]杨贵,刘汉龙,朱俊高.粗粒料湿化变形数值模拟研究[J].防灾减灾工程学报,2012,32(05):535-538+551.

杨贵, 刘汉龙, 朱俊高. Numerical Simulation Study on Wetting Deformation of Coarse Aggregate Materials[J]. 2012, 32(5): 535-538+551.
[1]杨贵,刘汉龙,朱俊高.粗粒料湿化变形数值模拟研究[J].防灾减灾工程学报,2012,32(05):535-538+551. DOI： 10.13409/j.cnki.jdpme.2012.05.008.

杨贵, 刘汉龙, 朱俊高. Numerical Simulation Study on Wetting Deformation of Coarse Aggregate Materials[J]. 2012, 32(5): 535-538+551. DOI： 10.13409/j.cnki.jdpme.2012.05.008.

摘要

粗粒料湿化变形特性对土石坝静力稳定有着显著影响。目前开展的三轴试验和直剪试验研究

一般只能进行干样和饱和样的试验

而对于非饱和情况研究较少。基于粗粒料不同围压下湿化变形试验研究成果开展数值模拟研究

结果表明:湿化变形的影响可以通过改变细观剪切模量和细观摩擦系数来实现;随着颗粒破碎随饱和度和围压的增加

湿化后粗粒料的强度低、内聚力降低

但摩擦角变化不大。

Abstract

Wetting deformation

which has significant effect on the stability of rock-filling dams

has been studied mainly by triaxial tests and direct shear tests.The indoor test is widely used to study the wetting deformation of dry samples and saturated sample

but few researches focus on unsaturated materials.Based on the test results of coarse aggregate materials under different confining pressures

the wetting deformation was studied by numerical simulations.The results indicate that the influence of the wetting deformation can be obtained by changing the micro shear modulus and friction coefficient.Particle breakage of coarse aggregate is increased with the increase of saturability and confining pressure.The shear strength and cohesion of the coarse aggregate materials decrease after wetting deformation

and the friction angle basically remains unchanged.

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references

粗粒料三维颗粒流数值模拟及其破坏准则研究 [J]. 杨贵,肖杨,高德清. 岩土力学 . 2010(S2)

粗粒料湿化变形后的抗剪强度分析 [J]. 左永振,程展林,姜景山,丁红顺,孔宪勇. 岩土力学 . 2008(S1)

粗粒料三轴湿化颗粒破碎试验研究 [J]. 魏松,朱俊高. 岩石力学与工程学报 . 2006(06)

堆石料三轴湿化变形特性试验研究 [J]. 张少宏,张爱军,陈涛. 岩石力学与工程学报 . 2005(S2)

黄河公伯峡面板堆石坝三维湿化变形分析 [J]. 李全明,于玉贞,张丙印,沈珠江. 水力发电学报 . 2005(03)

粗粒料的大型高压三轴湿化试验研究 [J]. 李鹏,李振,刘金禹. 岩石力学与工程学报 . 2004(02)

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