旧路改造中弯沉与破损相关性分析及处置建议

Correlation Analysis and Disposal Suggestion of Bending Subsidence and Damage in Old Road Evaluation

文中选择三个不同等级、不同结构、不同工况的实际旧路改造工程项目,开展了弯沉与破损相关性分析,并对比了不同单元长度对两者相关性的影响。结果表明,破损与弯沉相关性较低,且相关性不因结构、道路等级、路况、单元长度的改变而变化;在建立评价指标框架时,针对旧路改造工程特点,应将道路结构承载能力放在首位,先根据弯沉分类,再以破损划分细类,逐步优化处置方案。

In this paper, three actual old road reconstruction projects with different grades, different structures and different working conditions are selected to carry out the correlation analysis of deflection and damage, and the influence of different unit lengths on the correlation between them is compared. The results show that the correlation between damage and deflection is low, and the correlation does not change with the change of structure, road grade, road condition and unit length;When establishing the evaluation index framework, according to the characteristics of the old road reconstruction project, the bearing capacity of the road structure should be put in the first place. First, it should be classified according to the deflection, then it should be classified according to the damage, and the disposal scheme should be gradually optimized.