新型柔性路面结构非线性分析方法研究

doi:10.3969/j.issn.1000-1093.2018.04.021

兵工学报 ›› 2018, Vol. 39 ›› Issue (4): 810-815.doi: 10.3969/j.issn.1000-1093.2018.04.021

新型柔性路面结构非线性分析方法研究

李林，白斌胜，程营，梅之永

（工程兵科研一所，江苏无锡214035）

收稿日期:2017-05-26 修回日期:2017-05-26 上线日期:2018-05-30
作者简介:李林(1962—)，男，研究员。E-mail: lilin308@sina.com
基金资助:
总装备部预先研究项目(40407010402)

Research on Nonlinear Analysis Method of a New Flexible Pavement

LI Lin, BAI Bin-sheng, CHENG Ying, MEI Zhi-yong

(The First Engineering Scientific Research Institute, Wuxi 214035, Jiangsu, China)

Received:2017-05-26 Revised:2017-05-26 Online:2018-05-30

摘要/Abstract

摘要： 为预测敷设于松软泥泞地基之上的柔性路面在车辆荷载下的静力性能，选取Duncan-Chang本构模型模拟地基土体非线性弹性力学特性，将柔性路面结构简化为膜-梁单元力学模型。考虑路面结构受载大变形、地基与路面的接触非线性，采用有限元分析软件Abaqus建立柔性路面结构的非线性分析模型，得出了路面结构受载后变形和内力响应等结果，并通过实载试验验证了数值分析结果的准确性。结果表明，基于Duncan-Chang本构模型的路面结构非线性分析方法能够满足工程分析要求。

关键词: 柔性路面, Duncan-Chang本构模型, 非线性分析, 试验验证

Abstract: In order to predict the static mechanical performance of flexible pavement laid on swampy ground under vehicle load, Duncan-Chang constitutive model is selected to simulate the nonlinear elastic properties of ground soil. The flexible pavement is simplified as a mechanical model of membrane-beam element, and the large deformation and contact nonlinearity of flexible pavement are also consisted. A nonlinear analysis model of flexible pavement structure is established by using the finite element analysis software ABAQUS, and the deformation and internal force response of the flexible pavement under load are obtained. The numerical analysis result is verified with the load test result. The result shows that the nonlinear analysis method of flexible pavement structure based on Duncan-Chang constitutive model can meet the requirements of engineering analysis. Key

Key words: flexiblepavement, Duncan-Changconstitutivemodel, nonlinearanalysis, test

中图分类号:

U416.221

李林，白斌胜，程营，梅之永. 新型柔性路面结构非线性分析方法研究[J]. 兵工学报, 2018, 39(4): 810-815.

LI Lin, BAI Bin-sheng, CHENG Ying, MEI Zhi-yong. Research on Nonlinear Analysis Method of a New Flexible Pavement[J]. Acta Armamentarii, 2018, 39(4): 810-815.

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新型柔性路面结构非线性分析方法研究

Research on Nonlinear Analysis Method of a New Flexible Pavement

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