辽宁省沥青路面厂拌热再生技术使用效果分析与评价

发布时间：2018-03-07 14:15

本文选题：沥青路面　切入点：厂拌热再生技术　出处：《沈阳建筑大学》2014年硕士论文　论文类型：学位论文

【摘要】：厂拌热再生技术属于沥青再生技术,近些年来,越来越多的引起各国的重视。它主要是一种对旧路的养护维修技术,具有很好的经济效益和环境效益,具有很好的降低工程成本、减少旧料污染、缩短施工工期、提高生产效率等优点,该技术在辽宁省部分地区已得到了的应用,但是对厂拌热再生技术后评价方面的研究仍为空白。如何有效对厂拌热再生技术的使用效果进行评价,还值得进一步研究。本文主要以辽宁省近年来修建的沥青路面厂拌热再生试验道路路面调查为背景,收集辽宁省厂拌热再生路面状况数据,并对使用性能进行评价；在路面芯样试验分析的基础上,结合所在道路的交通量和行车荷载特点,分析总结厂拌热再生道路出现病害的原因和厂拌热再生路面在应用中存在的问题,同时结合国内其他厂拌热再生路段应用情况,提出厂拌热再生技术的适用情况,为以后我省乃至我国科学有效地应用厂拌热再生技术提供重要的参考。经济效益方面,应用净现值法对采用厂拌热再生技术路面结构和不采用厂拌热再生技术路面结构进行经济效益的横向对比分析。在全寿命周期内,厂拌热再生技术方案在与新建方案相比,厂拌热再生技术的应用可节约可观的费用,经济效益显著。环境效益方面,应用层次分析法对环境效益进行分析与评价,根据环境效益的主要影响因素和评价指标体系建立原则,从自然环境效益和社会环境效益两方面出发,建立了沥青公路厂拌热再生技术工程环境评价指标体系,并确定了各组成指标的权重值。最后,本文在以上科学研究的基础上,应用ABAQUS有限元软件进行各维修方案的结构力学分析,用路表弯沉值和路面结构层层底拉应力作为控制指标,验证厂拌热再生技术应用于沥青路面养护维修中的合理性,为以后实际路面设计提供有益的指导。
[Abstract]:In recent years, more and more attention has been paid to the technology of asphalt recycling. It is mainly a maintenance and maintenance technology for old roads, which has good economic and environmental benefits. It has the advantages of reducing engineering cost, reducing pollution of used materials, shortening construction period, improving production efficiency, etc. The technology has been applied in some parts of Liaoning Province. However, the research on the post-evaluation of the heat regeneration technology is still blank. It is also worth further study. This paper mainly based on the investigation of asphalt pavement hot recycling test road surface built in Liaoning Province in recent years, collect the data of Liaoning Province factory mix hot regenerated road surface, and evaluate the performance of the pavement. On the basis of the analysis of the core sample of road surface, combined with the traffic volume and the driving load characteristics of the road, the paper analyzes and summarizes the causes of the disease of the hot regenerated road and the problems existing in the application of the road. At the same time, combined with the application of other sections of heat regeneration in China, the paper puts forward the application situation of heat recycling technology in factory mix, which provides an important reference for the future scientific and effective application of heat regeneration technology in our province and even in our country. Using the net present value method, the economic benefits of pavement structure with and without heat regeneration technology are compared and analyzed. In the whole life cycle, the scheme is compared with the new one. The application of heat regeneration technology can save considerable cost, and the economic benefit is remarkable. In the aspect of environmental benefit, the analytic hierarchy process is applied to analyze and evaluate the environmental benefit. According to the main influencing factors of environmental benefit and the establishment principle of evaluation index system, the environmental evaluation index system of asphalt highway mixed heat recycling technology engineering is established from the two aspects of natural environment benefit and social environmental benefit. Finally, on the basis of the above scientific research, the structural mechanics analysis of each maintenance scheme is carried out by using ABAQUS finite element software. The deflection value of pavement surface and the tensile stress of pavement structure are used as control indexes to verify the rationality of the application of heat recycling technology in asphalt pavement maintenance and maintenance, and to provide useful guidance for practical pavement design in the future.
【学位授予单位】：沈阳建筑大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U418.4

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