| 基于扩展有限元法的加铺应力吸收层对反射裂缝影响浅析 |
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| 引用本文： | 林娟.基于扩展有限元法的加铺应力吸收层对反射裂缝影响浅析[J].中国市政工程,2021(1):78-82,90. |
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| 作者姓名： | 林娟 |
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| 作者单位： | ;1.福州市规划设计研究院 |
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| 摘 要： | 基于福建某旧路改造工程,借助ABAQUS软件平台,模拟旧混凝土路面加铺沥青混凝土结构层,分析在荷载作用下沥青混凝土加铺层厚度、应力吸收层厚度和模量变化对应力值、弯沉值以及裂缝扩展的影响。研究表明,合理增加沥青混凝土加铺层厚度可有效防治面层反射裂缝,适当加铺应力吸收层可较好防治面层反射裂缝。研究结果可为类似工程提供借鉴。
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| 关 键 词： | 扩展有限元 沥青混凝土加铺层 应力吸收层 反射裂缝 |
Effect Analysis of Overlay Stress Absorbing Layer on Reflection Crack Based on Extended Finite Element Method |
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| LIN Juan.Effect Analysis of Overlay Stress Absorbing Layer on Reflection Crack Based on Extended Finite Element Method[J].China Municipal Engineering,2021(1):78-82,90. |
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| Authors: | LIN Juan |
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| Affiliation: | (Fuzhou Planning&Design Research Institute,Fuzhou 350003,China) |
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| Abstract: | Based on an old road reconstruction project in Fujian,with the help of ABAQUS software platform,the overlay of asphalt concrete structure layer on old concrete pavement is simulated;and the influence of overlay thickness,stress absorbing layer thickness&modulus change on stress value,deflection value&crack propagation under load is analyzed.The results show that increasing the thickness of asphalt concrete overlay can effectively prevent&control the reflective cracks of the surface,and laying stress absorbing layer properly can prevent&control the reflective cracks of the surface,which may provide reference for similar projects. |
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| Keywords: | extended finite element asphalt concrete overlay stress absorbing layer reflection crack |
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