橡胶沥青应力吸收层技术在莆田市道路改造中的应用研究

发布时间：2018-04-13 13:43

本文选题：橡胶沥青应力吸收层 + 反射裂缝　；参考：《华侨大学》2014年硕士论文

【摘要】：橡胶沥青应力吸收层复合式路面加铺技术是当前国内城市道路建设领域的一项新技术，可有效解决在城市水泥道路路面改造中加铺沥青混凝土罩面出现的反射裂缝、沥青面层与旧水泥路面的粘结不牢和水害等技术问题。在城市道路沥青化工程中，特别是道路“白改黑”工程中应用越来越广泛。随着该技术日趋完善及规范化，如何因地制宜地在城市道路改造中推广应用，对于城市交通事业健康持续发展意义重大。2011年5月福建省住房和城乡建设厅提出大力推广该技术，在此背景下，本文以莆田市荔园路道路改造工程为工程背景，采用理论与实践相结合的研究分析方法，对橡胶沥青应力吸收层技术进行研究。从沥青、橡胶粉的组成结构出发，阐述了橡胶粉对沥青的改性作用，总结橡胶沥青的优点，并结合工程实际，对沥青混合料进行配合比设计。分析反射裂缝产生的原因，总结影响反射裂缝的因素，阐述应力吸收层的作用机理，并给出应力吸收层材料的性能指标。以莆田市荔园路道路改造工程为实例，结合工程的特点，系统地介绍橡胶沥青应力吸收层技术。主要内容有：现场勘查，对原水泥混凝土路面现状进行评定；交通量预测，，提出道路改造方案；方案比选，包括旧水泥混凝土路面的加铺方案、旧水泥混凝土路面的整治方案、沥青加铺层设计方案等；改造路面结构设计；橡胶沥青应力吸收层施工技术及施工质量控制管理；效益评价。该技术在莆田市道路“白改黑”工程中的成功应用，形成了一套集材料、设备和工艺于一体的施工技术，可为该技术在工程应用中提供经验借鉴。
[Abstract]:The compound pavement overlay technology of rubber asphalt stress absorption layer is a new technology in the field of urban road construction in China, which can effectively solve the reflection cracks in the overlay of asphalt concrete overlay in the reconstruction of urban cement road pavement.Technical problems such as poor bond between asphalt surface and old cement pavement and water hazard.It is more and more widely used in the asphalt engineering of urban road, especially in the road "white to black" project.With the improvement and standardization of the technology, how to popularize and apply it to local conditions is of great significance for the healthy and sustainable development of urban transportation. In May 2011, the Housing and Urban-Rural Construction Department of Fujian Province proposed to vigorously popularize the technology.Under this background, this paper takes the road reconstruction project of Putian Liyuan Road as the engineering background, adopts the research and analysis method of combining theory and practice to study the technology of rubber asphalt stress absorption layer.Based on the composition structure of asphalt and rubber powder, the modification effect of rubber powder on asphalt is expounded, the advantages of rubber asphalt are summarized, and the mix proportion of asphalt mixture is designed in combination with engineering practice.The causes of reflection cracks are analyzed, the factors influencing the reflection cracks are summarized, the action mechanism of stress absorbing layer is expounded, and the performance index of stress absorbing layer material is given.Taking the reconstruction project of Liyuan Road in Putian City as an example and combining the characteristics of the project, this paper systematically introduces the technology of rubber asphalt stress absorption layer.The main contents are as follows: site survey, assessment of the current situation of the original cement concrete pavement; traffic volume prediction, road reconstruction scheme; scheme comparison and selection, including the overlay scheme of the old cement concrete pavement, the treatment plan of the old cement concrete pavement,Asphalt overlay design scheme; modified pavement structure design; rubber asphalt stress absorption layer construction technology and construction quality control management; benefit evaluation.The successful application of this technology in Putian Road "White to Black" project has formed a set of construction technology which integrates material, equipment and technology, which can provide experience and reference for the application of this technology in engineering.
【学位授予单位】：华侨大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U418.8

【参考文献】