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裂隙岩体的细观动力损伤模型 被引量：22

DYNAMIC MESO- DAMAGE MODEL OF JOINTED ROCKMASS
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摘要 通过分析单组裂隙细观特征对应力波传播特性的影响机理,提出了表达裂隙细观特征对波速影响的半连续介质动力损伤模型及表述其对波幅影响的细观损伤阻尼模型;并应用室内模型试验进行了对比验证,对比结果说明所提出的细观损伤模型较当前S. Valliappan和E. P. Chen的最新等效连续损伤模型更接近于试验结果。 Based on the wave propagation theory on the jointed media,a dynamic damage model of the cracked medium is developed with the theoretical analysis and model test to investigate the jointed rockmass behavior under the blasting pulse. The presented model is capable of capturing the meso-behavior of dynamic response of the joints and the wave propagation properties under the blasting pulse,as well as the consideration of the degradation of the material stiffness and strength by the classical continuum damage me...
作者 李宁 张平 段庆伟 Swoboda G
机构地区 西安理工大学岩土工程研究所 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室兰州 University of Innsbruck
出处 《岩石力学与工程学报》 EI CAS CSCD 北大核心 2002年第11期1579-1584,共6页 Chinese Journal of Rock Mechanics and Engineering
基金 国家自然科学基金(19772039) 中国科学院院长特别基金(9817)联合资助项目。
关键词 裂隙介质 波传播特性 细观动力损伤模型 损伤阻尼张量 cracked medium wave propagation properties dynamic meso-damage model damaged damping tensor
分类号 TU452 [建筑科学—岩土工程]
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参考文献12

  • 1[1]Lacy T E,McDowell D L,Willice P A,et al.On representation of damage evolution in continuum damage mechanics[J]. Int. J. Damage Mechanics,1997,16(1):62～96
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二级参考文献1

  • 1韩贝传，1991年

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同被引文献403

引证文献22

二级引证文献436

岩石力学与工程学报
2002年 第11期

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