高速公路使用状况评估及路面修复技术案例分析

发布时间：2018-02-10 12:19

本文关键词： 高速公路沥青路面路面修复使用性能评估　出处：《华南理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着我国高速公路的快速发展,以沥青路面结构为主导的高速公路路网已基本建成,但沥青路面裂缝、水损害及车辙等病害频发,已建高速公路进入了全面养护维修阶段。如何经济、科学、高效、高质量地进行路面评价及修复工作,是值得探讨和研究的一个重要课题。本文总结归纳了公路使用状况评估和修复决策的基本理论及方法:公路使用状况评估包括交通量调查与分析、软基路段处理质量评价与分析、沥青路面使用状况评价与分析三部分内容,通过历史数据收集、现场查勘和检测等手段获得路基路面状况数据并进行分析评价,甄别路面病害产生的原因和形成机理;在综合考虑路面使用状况和结构承载力、功能特征、排水系统等条件的基础上提出的可行的修复方案,科学指导道路养护和修复。基于广明高速公路陈村至西樵段二期修复工程,通过对旧路交通量进行预测和分析、软基施工工后质量状况评估,并综合PCI、RQI、SFC或BPN、SSI四种路面评价指标,确定路段是否满足后续使用标准。根据评估数据及交通流量预测数据,分析旧路现状并进行沥青路面结构设计计算,提出多个预选方案并进行经济性评估、分析软基和容许累计当量轴次的影响等,确定首选修复方案,进而论述应如何全面、科学和客观地进行高速公路使用状况评估及路面修复决策工作。
[Abstract]:With the rapid development of expressway in China, the highway network, which is dominated by asphalt pavement structure, has been basically built, but the cracks, water damage and rutting of asphalt pavement occur frequently. The built expressway has entered the stage of comprehensive maintenance and maintenance. How to evaluate and repair the pavement economically, scientifically, efficiently and with high quality, This paper summarizes and summarizes the basic theories and methods of highway use evaluation and repair decision: highway use assessment includes traffic volume investigation and analysis. The evaluation and analysis of treatment quality of soft foundation section, the evaluation and analysis of asphalt pavement use condition, and the analysis and evaluation of subgrade and pavement condition data are carried out by means of historical data collection, on-site survey and inspection, etc. Identify the causes and formation mechanism of pavement diseases, put forward a feasible restoration scheme on the basis of comprehensive consideration of pavement use condition and structural bearing capacity, functional characteristics, drainage system, etc. Based on the second phase repair project of Chencun to Xiqiao section of Guangming Expressway, through forecasting and analyzing the traffic volume of the old road, evaluating the quality of soft foundation after construction, and synthesizing the four evaluation indexes of PCI RQI SFC or BPNI SSI, According to the evaluation data and traffic flow forecast data, analyze the current situation of the old road and carry on the asphalt pavement structure design calculation, put forward several pre-selection schemes and carry on the economic evaluation, This paper analyzes the influence of soft foundation and allowable accumulative equivalent axle, and determines the preferred repair plan, and then discusses how to comprehensively, scientifically and objectively carry out the evaluation of expressway usage condition and the decision of pavement repair.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U418

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