| 粗粒料颗粒破碎特性研究述评 |
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| 引用本文： | 刘汉龙,孙逸飞,杨贵,陈育民.粗粒料颗粒破碎特性研究述评[J].河海大学学报(自然科学版),2012,40(4):361-369. |
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| 作者姓名： | 刘汉龙 孙逸飞 杨贵 陈育民 |
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| 作者单位： | 河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098;河海大学土木与交通学院,江苏南京210098 |
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| 基金项目： | 国家杰出青年科学基金，国家自然科学基金 |
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| 摘 要： | 从颗粒破碎的度量指标、影响因素、对土体强度特性的影响和本构模型4方面对粗粒料在高应力条件下的颗粒破碎特性研究进展进行评述,并就其中存在的问题进行探讨,指出今后的研究方向:分形理论在颗粒破碎度量中的应用;初始应力状态对颗粒破碎率的影响;土体结构性对颗粒破碎的影响;土体尺寸效应对颗粒破碎的影响;考虑微观力学机理的颗粒破碎本构模型。
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| 关 键 词： | 粗粒料 颗粒破碎 土体剪胀性 摩擦角 本构模型 综述 |
| 修稿时间： | 2012/8/31 0:00:00 |
A review of particle breakage characteristics of coarse aggregates |
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| LIU Hanlong
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SUN Yifei
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YANG Gui
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CHEN Yumin.A review of particle breakage characteristics of coarse aggregates[J].Journal of Hohai University (Natural Sciences ),2012,40(4):361-369. |
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| Authors: | LIU Hanlong SUN Yifei YANG Gui CHEN Yumin |
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| Institution: | 1,2(1.Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China;2.College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | This paper provides a review of the research progress on the characteristics of particle breakage of coarse aggregates under high stress,including the particle breakage index,influencing factors,effects on soil strength,and constitutive models.Based on discussion of the problems in the research,it is pointed out that further research should focus on the following: application of the fractal theory to measurement of particle breakage,the effect of initial stress on the particle breakage rate,the effect of soil fabric on particle breakage,the effect of soil size on particle breakage,and constitutive models for crushable soils based on micromechanical mechanisms. |
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| Keywords: | coarse aggregate particle breakage dilatancy friction angle constitutive model review |
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