辽宁省高速公路弯沉指标衰减趋势分析

道路弯沉指标衰减规律可以预测路面的未来技术状况,为公路管理部门制定养护计划提供依据。采用分析标定法建立衰减趋势模型,选择重点观测路段,针对预防性养护体系中的各项指标,利用大量的检测数据进行对比、分析,找出影响路面性能的主要因素,结合国内外的经验理论,研究确立各项指标的衰减趋势,建立模型。通过已有的检测数据对模型中的参数进行标定,最终得到适合辽宁省高速公路路面预防性养护质量指标的性能衰减趋势模型,建立适合于辽宁省气候条件、路面结构形式的弯沉指标衰减趋势模型。

Analysis of Liaoning Province Expressway Deflection Indicators Attenuation Trend

In order to master the deflection indicators attenuation rule of road to predict future road conditions,providing evidence for highway management department to make conservation plans.This paper will establish a deflection indicators decay trend model which suitable to climatic conditions and pavement structure type of Liaoning province.Using the analysis calibration method when establishing decay trend model.First,we focus on selecting the observation sections,as to the indicators of preventive maintenance system,using large amounts of test data to compare,analyze and identify the main factors affecting the pavement performance.Combined domestic and international experience theory,researching to establish the attenuation indicators decay trend modeling,and then through the existing test data for model to calibrate parameters.Finally get a highway pavement preventive maintenance of all quality indicators attenuation trend model of Liaoning province.