基于路面使用性能衰变规律的检测周期优化方法研究

Study on Method Optimizing Check Period Based on Decay Law of Pavement Performance

针对规范规定的路用性能指标检测周期未能与其衰变形式相呼应的情况,提出了基于路用性能指标衰变形式的检测周期确定方法。通过灰色理论扩充原有数据库,并对扩充数据进行回归分析,确定该指标的衰变方程,再使用规范中规定的评价标准及衰变曲线变化率的最大值确定该指标的优化周期。结合沧州市干线公路工程实际,给出了路用性能指标检测周期的优化过程。

In connection with the issue that the check period of pavement performance indicator specified in the standard does not correspond to its decay form, a method defining the check period based on pavement performance indicator＇s decay form was proposed herein. The data extended from the original database by Grey Theory was studied by regression analysis, thus the decay equation of this indicator was determined with its optimization cycle specified by the evaluation criteria set out in the standard and the maximum value of decay curve＇ change rate. Combining with the project case of trunk road in Changzhou, the procedure optimizing the check period of pavement performance indicator was put forward.