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山东大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (6): 121-124.

• 土木工程 • 上一篇    下一篇


采空区公路沥青路面结构层应力关键影响因素分析

齐辉 商庆森 朱海波 崔新壮 刘超   

  1. 齐辉 商庆森  崔新壮: 山东大学土建与水利学院, 山东 济南 250061;
    朱海波:山东省交通厅公路局, 山东 济南 250002; 
     刘超山东省交通规划设计研究院, 山东 济南 250031
  • 收稿日期:2008-12-31 出版日期:2009-12-16 发布日期:2009-12-16
  • 作者简介:齐辉(1982-),男,山东聊城人,硕士研究生,研究方向为道路与铁道工程. E-mail:qihui0214@gmaail.com

Analysis of the key influencing factors of structure layer stress of asphalt pavement in goaf

  • Received:2008-12-31 Online:2009-12-16 Published:2009-12-16

摘要:

以某地煤矿巷道造成的在建路面开裂处理为工程实例,以路面结构层容许弯拉应力作为控制指标,从采空区地表沉降的三大特征值倾斜、曲率和水平变形出发,通过有限元计算和分析,确定了路堤底部作用凸型沉降曲面为计算的主要模式,然后利用正交实验的方差分析原理,探讨了各特征值对路面结构层力学性能影响的显著程度,得出曲率的影响是最显著的.

关键词: 采空区;地表沉降;公路;路面结构;有限元计算

Abstract:

 Based on the road construction project in a coal mine,  three major characteristic values  were selected, which included theslope, thecurvature, and the horizontal deformation as evaluation indicators. The main calculation model that imposed the convex settlement curve at the bottom of the embankment was determined according to the finite element calculation and analysis. Finally, was studied the impact of each characteristic valueon the mechanical properties of road structure layers was studied, and the conclusion showed that the curvature was the most significant factor.

Key words: goaf; ground surface settlement; highway; pavement structure; finite element method

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