期刊文献+

充填单节理岩体本构模型研究 被引量:11

STUDY OF CONSTITUTIVE MODEL FOR SINGLE INFILLED JOINTED ROCK MASS
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摘要 根据以往充填节理的直剪试验结果,详细研究充填度对节理力学参数的影响。在分析几种充填节理岩体剪切强度模型的基础上,用经典的弹塑性理论提出充填节理岩体增量型应力与位移的本构模型,特别对节理剪切应力–位移曲线的硬化和软化特征进行研究。通过对比本文模型与已有试验点的剪切曲线,结果表明两者具有较好的吻合性,从而验证本文模型的正确性。 According to the previous direct shear test results of infilled joint,the influence of the ratio of infilled thickness to asperity height on mechanical parameters of joint is detailly studied. On the basis of analyzing several kinds of shear strength models for jointed rock mass,the constitutive model for increment-type stress and displacement of infilled joint rock mass is proposed by using the elasto-plastic theory;and the hardening and softening characteristics of joint shear stress-displacement curve are especially studied. Through the comparison of shear curves of existing test sites,the results indicate that the proposed model curve agrees better with the experimental data,which identifies the correctness of the model.
出处 《岩石力学与工程学报》 EI CAS CSCD 北大核心 2010年第A02期3463-3468,共6页 Chinese Journal of Rock Mechanics and Engineering
基金 国家自然科学基金资助项目(50539030) 国家重点基础研究发展计划(973)项目(2010CB7321004)
关键词 岩石力学 充填节理 本构模型 剪胀 充填度 rock mechanics infilled joints constitutive model dilatancy infilling percentage
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参考文献18

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二级参考文献18

  • 1尹显俊,王光纶,张楚汉.岩体结构面切向循环加载本构关系研究[J].工程力学,2005,22(6):97-103. 被引量:31
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  • 8CAI M, HORII H. A constitutive model of highly jointed rock masses[J]. Mechanics of Materials, 1992, 13(3): 217 - 246.
  • 9SIMON R, AUBERTIN M, MITRI H S. A non-linear constitutive model for rock joints to evaluate unstable slip[C]//Proceedings of the 37th U.S. Rock Mech. Symp., Rock Mechanics for Industry. Balkema A.A. Rotterdam, 1999:1 091 - 1 098.
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引证文献11

二级引证文献74

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