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首页> 外文期刊>Engineering analysis with boundary elements >Influence of soil non-homogeneity on shear band evolution investigated by the numerical manifold method combined with the assumed enhanced strain method
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Influence of soil non-homogeneity on shear band evolution investigated by the numerical manifold method combined with the assumed enhanced strain method

机译：土壤非均匀性对数值歧管法与假设增强应变法相结合的剪切带进化的影响

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摘要

The assumed enhanced strain (AES) method has been successfully used to deal with the strain localization or shear band problems. With AES treating the localization deformation as strong discontinuity in displacement field, the structural phenomenon and the associated strength loss manifested in strain localization could be reflected in a way independent of mesh density and alignment. On the other hand, the numerical manifold method (NMM) excels at dealing with non-homogeneity and discontinuity problems because of the two sets of covers. By combining the NMM with the AES method, this paper could investigate the influence of soil non-homogeneity on shear band evolution naturally and mesh independently. The Gauss Seidel projection contraction (GSPC) method is invoked because it is simple and efficient in tackling the integration difficulties induced by cutting the tensile part of the Drucker Prager (DP) model. Finally, this paper studies the influences of erratic boulders and weak soil layer on the evolution of shear band in the slope.
机译：假设的增强菌株（AES）方法已成功地用于处理应变定位或剪切带问题。与AES处理本地化的变形作为位移场强间断，结构现象和应变局部化表现相关联的强度损失可反映在独立网格密度和取向的方法。另一方面，由于两组盖子，在处理非同质性和不连续性问题时，数值歧管方法（NMM）excel。通过将NMM与AES方法相结合，本文可以独立地研究土壤非均匀性对剪切带进化的影响。调用高斯Seidel投影收缩（GSPC）方法，因为在解决通过切割滴灌器PRAGER（DP）模型的拉伸部分引起的集成困难方面简单而有效。最后，本文研究了不稳定的巨石和弱土层对斜坡剪切带演变的影响。

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  • 作者

    Zibo Fan; Hong Zheng; Zhibao Nie; Yichen Wang; Chao Han;

  • 作者单位

    Key Laboratory of Urban Security and Disaster Engineering Ministry of Education Beijing University of Technology Beijing 100124 China;

    Key Laboratory of Urban Security and Disaster Engineering Ministry of Education Beijing University of Technology Beijing 100124 China;

    Geotechnical Engineering Laboratory China Electric Power Research Institute Beijing 102401 China;

    Key Laboratory of Urban Security and Disaster Engineering Ministry of Education Beijing University of Technology Beijing 100124 China;

    Key Laboratory of Urban Security and Disaster Engineering Ministry of Education Beijing University of Technology Beijing 100124 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    AES; NMM; GSPC; Soil non-homogeneity; DP;

    机译：AES;nmm;GSPC;土壤非均匀性;DP.;

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