| 土工格栅加筋柔性桥台筋材设计方法研究 |
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| 引用本文： | 李强,周志刚,郑健龙.土工格栅加筋柔性桥台筋材设计方法研究[J].长沙交通学院学报,1999,15(2):70-74. |
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| 作者姓名： | 李强 周志刚 郑健龙 |
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| 作者单位： | 长沙交通学院,路桥工程系,湖南,长沙,410076 |
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| 摘 要： | 通过对柔性桥台室内模型和现场试验工程的检测结果及非线性有限元的计算，分析柔性桥台加筋材料拉断破坏的机理，针对现行规范中计算公式存在的缺陷，考虑粘聚力和路基填土的影响并导出相应的筋材拉力计算公式，同时提出平面加筋材料垂直间距的设计计算方法。
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| 关 键 词： | 柔性桥台 土工格栅 加筋设计 |
| 修稿时间： | 1999-03-16 |
A Study of Design Method for Flexible Abutment Reinforced by Geogrids |
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| LI Qiang,ZHOU Zhi-gang,ZHENG Jian-long.A Study of Design Method for Flexible Abutment Reinforced by Geogrids[J].Journal of Changsha Communications University,1999,15(2):70-74. |
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| Authors: | LI Qiang ZHOU Zhi-gang ZHENG Jian-long |
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| Abstract: | Through the analysis of
indoor experimental model, collection of results of field measurement and calculation and
investigation given by non-linear finite element method, authors analyze the tensile
failure mechanism of the reinforced grid of flexible abutment. In this paper, in view of
the drawback of the calculation formulae in the specification in force, authors have
considered the influence of the cohesive force and pressure of the subgrade soil and have
deduced the tensile force formulae for the reinforced material. The design method for
determining the vertical spacing of the plane-reinforced material is also put forward. |
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