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A Simplified Method for Analysis of Geosynthetic Reinforcement Used in Pile Supported Embankments

机译:桩承式路堤土工加筋分析的简化方法

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摘要

The inclusion of geosynthetic reinforcement in the piled embankment can help transfer loads to the piles and reduce total and differential settlements. In order to select the appropriate reinforcement material, the reasonable calculation of the deflection and tension is very important. Current design methods usually do not represent the true three-dimensional (3D) nature of the displacements, strains, and stresses of the geosynthetics, and the resulting error may be large and cannot be neglected in some cases. In this study, two- and three-dimensional finite element analyses were conducted to identify the behavior of geosynthetic reinforcement and investigate the accuracy of the assumptions made in the current design methods. Based on the numerical results, a new 3D deflected shape of the geosynthetic reinforcement was suggested, and then the corresponding governing equation was derived and solved based on the membrane theory. To investigate the validity of the proposed method, the predicted maximum deflection, deflection shape, and the developed tensile force of the geosynthetics have been compared with the experimental data collected from the literatures and finite element analysis results.
机译:在堆积的路堤中包含土工合成材料的增强材料可以帮助将载荷转移到桩上,并减少总沉降和不均匀沉降。为了选择合适的增强材料,合理计算挠度和张力非常重要。当前的设计方法通常不能代表土工合成材料的位移,应变和应力的真实三维(3D)性质,并且由此产生的误差可能很大,在某些情况下不能忽略。在这项研究中,进行了二维和三维有限元分析,以识别土工合成材料加固的行为,并调查当前设计方法中所作假设的准确性。根据数值结果,提出了一种新的3D土工合成材料挠曲形状,然后基于膜理论推导并求解了相应的控制方程。为了研究该方法的有效性,将预测的最大挠度,挠度形状和土工合成材料所产生的拉力与从文献中收集的实验数据和有限元分析结果进行了比较。

著录项

  • 期刊名称 other
  • 作者

    Kang Fei;

  • 作者单位
  • 年(卷),期 -1(2014),-1
  • 年度 -1
  • 页码 273253
  • 总页数 9
  • 原文格式 PDF
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