本文選題：重載瀝青路面 + 數(shù)值分析�。� 參考：《河北工業(yè)大學(xué)》2015年碩士論文

【摘要】：我國90%的高速公路路面為瀝青路面,在一般道路中,瀝青路面也占有很大比重。就瀝青路面的設(shè)計與研究而言,對材料的研究較多,主要包括馬歇爾設(shè)計法、GTM設(shè)計法、Superpave設(shè)計法等面層混合料設(shè)計方法。近年來相繼提出了長壽命、全壽命、針對材料的一體化設(shè)計理念,對重載瀝青路面進行了針對性的研究,但其理論突破、方法手段的更新顯見不足。本文結(jié)合沿海公路改建工程,綜合考慮路面結(jié)構(gòu)、材料、層位功能、一體化設(shè)計理論,通過實際調(diào)查、數(shù)值分析、材料性能試驗研究,得出以下結(jié)論:通過交通量、軸載譜調(diào)查分析,確定了主要車型及軸載范圍;針對重載交通,分析推導(dǎo)出了軸載換算系數(shù),滿足本工程軸載換算的需要。綜合考慮路面結(jié)構(gòu)的力學(xué)特性、材料性能,根據(jù)層位功能理論及早期破壞原因,以數(shù)值分析為手段,確定了各個路面結(jié)構(gòu)層的受力分布規(guī)律及模量變化區(qū)間,并在此基礎(chǔ)上,對面層材料進行了試驗研究。最終針對實際工程提出了基于層位功能的高性能重載瀝青路面結(jié)構(gòu)與材料的一體化設(shè)計方案。
[Abstract]:In our country, 90% of the expressway pavement is asphalt pavement, asphalt pavement also occupies a large proportion in the general road. As far as the design and research of asphalt pavement is concerned, there are many researches on materials, including Marshall design method, GTM design method and Superpave design method. In recent years, long life and full life have been put forward one after another. Aiming at the concept of integrated design of materials, the research on heavy duty asphalt pavement has been carried out, but its theoretical breakthrough and the renewal of methods and means are obviously insufficient. Combined with the coastal highway reconstruction project, the paper synthetically considers the pavement structure, material, layer function, integrated design theory, through the actual investigation, numerical analysis, material performance test research, draw the following conclusion: through traffic volume, According to the investigation and analysis of axle load spectrum, the main vehicle type and the range of axle load are determined, and the conversion coefficient of axle load is deduced to meet the need of axle load conversion in this project. Considering the mechanical properties and material properties of pavement structure, according to the theory of layer function and the causes of early failure, and by means of numerical analysis, the law of stress distribution and the variation interval of modulus of each pavement structure layer are determined, and on this basis, An experimental study was carried out on the material of the opposite layer. Finally, an integrated design scheme of high performance and heavy duty asphalt pavement structure and materials based on layer function is put forward.
【學(xué)位授予單位】：河北工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：U416.217

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本文編號：2033887