【作者】 戴卫卫；

【导师】 郭小宏；

【作者基本信息】 重庆交通大学 ， 道路与铁道工程， 2008， 硕士

【摘要】 近年来,随着我国高速公路的飞速发展,沥青路面在我国得到了广泛的应用,同时也暴露出严重的早期破坏等问题。造成这种破坏最主要的原因是沥青混合料在施工过程中发生了周期性的离析。本论文通过分析传统工艺下沥青混合料在运输过程中产生不均匀性的原因和解决措施,指出旧工艺下使沥青混合料均匀化的局限性,进而提出采用沥青转运车的转运-摊铺新工艺。通过对沥青转运车基本结构的分析,根据其实现功能的不同主要分为搅拌系统、转运系统、加热系统和卸料系统,并阐述了各个系统所实现的不同功能。运用理论力学及流体力学的分析方法,研究在沥青混合料转运车搅拌过程中,沥青混合料的运动及受力情况。同时利用散体动力学的理论研究沥青转运车的转运系统和卸料系统的工作机理,从理论上证明转运系统和卸料系统能够将沥青混合料连续、平稳的供应给摊铺机,避免在此过程中产生混合料的再次离析。沥青转运车实现了卡车和摊铺机之间的柔性连接,消除了沥青混合料在运输过程中产生的不均匀性,形成了基于转运-摊铺的新工艺和新技术。通过与徐工集团、长大公司合作,在渝湛高速湛江段施工现场对采用沥青转运车的新工艺和旧工艺的施工效果对比,从实践证明转运-摊铺新工艺是使沥青混合料均匀化的最有效手段。更多还原

【Abstract】 In recent years, with the rapid development of our country’s freeway, the Hot-Mix-Asphalt (HMA) pavement has been widely used in our country. At the same time, some problems such as the serious early destructions have also appeared. The primary reason for the destruction is that the HMA have undergone periodic segregation in these processes.Based on analyzing the reason for segregation of the mixture produced in the transportation and resolving measures under the old construction technics, this paper points out the localization of that and the new construction technics basing on“transfer-paving”via the Material-Transfer-Vehicle(MTV).This paper divides the MTV into mixing system, transferring system, heating system and unloading system mainly via analyzing the conformation of the MTV and explains the function respectively. It applies analysis method of theoretical dynamics and fluid mechanics to research the movement and stressed conditions during agitation process of asphalt mixing material transfer vehicle. And use the granular dynamic theory, it analyzes the working principle of transferring system and unloading system and testifies that the transferring system and unloading system of the MTV can supply the mixture to the paver without segregating again. The MTV can make the truck and paver connecting blandly and resolve segregation of the mixture produced in the transportation, and that sets up the new construction technics and technology basing on“transfer-paving”.Cooperated with Xuzhou Construction Machinery Group and Changda Company, analyzing the different effects of the two freeway workplaces where MTV are used in the place of Yu-Zhan freeway, we can conclude: as a new craft, transport-paving is the best way to solve the segregation of the HMA.更多还原