考虑施工周期的扩建工程现有路面结构强度评价与衰减分析

Pavement Structural Strength Evaluation and Attenuation Analysis of Expansion Project considering Construction Period

针对扩建工程特点,通过具体实例分析了沥青砼路面结构性病害及路基回弹模量与路面结构强度的关系,并根据实测数据及收集的历年资料运用疲劳线性叠加定律推算现有路面结构强度衰减趋势及罩面需求,其结果对扩建工程现有路面结构强度评价方法的改进具有参考价值。

According to expansion project characteristic, through the Specific example, analysis the asphalt concrete pavement structural damages and the relationship of the subgrade resilient modulus and strength of pavement structure, and on the basis of the measured data and the data collected over the years, calculate the strength of the existing pavement structure attenuation trend and overlay needs by linear fatigue superposition principle. The results of which have reference values on the improvement of existing expansion project pavement structural strength evaluation method.