【摘要】：耐久性瀝青路面已經(jīng)成為世界各國瀝青路面最熱門的研究內(nèi)容，盡管許多國家都對耐久性瀝青路面進(jìn)行了廣泛研究，也取得一定成果，但目前為止，如何設(shè)計耐久性瀝青路面及確定結(jié)構(gòu)參數(shù)上并沒有統(tǒng)一的標(biāo)準(zhǔn)，，仍處于發(fā)展、完善階段，另外我國也有必要改變半剛性基層這種單一的路面結(jié)構(gòu)形式。因此，本文從路面結(jié)構(gòu)層位分工的角度分析路面結(jié)構(gòu)參數(shù)對柔性基層和組合式基層耐久性瀝青路面結(jié)構(gòu)的力學(xué)響應(yīng)規(guī)律，研究路面結(jié)構(gòu)參數(shù)確定方法，并對兩種路面結(jié)構(gòu)形式進(jìn)行優(yōu)化設(shè)計。 基于層位分工理論，分析瀝青路面早期破壞形式和其產(chǎn)生機理，從而確定預(yù)防瀝青路面早期損壞的耐久性瀝青路面結(jié)構(gòu)計算指標(biāo)及具體指標(biāo)。 選取典型柔性基層耐久性瀝青路面和組合式基層耐久性瀝青路面結(jié)構(gòu)形式，并確定各結(jié)構(gòu)層力學(xué)參數(shù)范圍，建立力學(xué)計算模型。采用KENPAVE軟件從材料非線性角度對柔性基層耐久性瀝青路面結(jié)構(gòu)和組合式基層耐久性瀝青路面結(jié)構(gòu)的結(jié)構(gòu)組合及結(jié)構(gòu)參數(shù)進(jìn)行系統(tǒng)理論研究，可知耐久性瀝青路面結(jié)構(gòu)參數(shù)的確定主要是厚度參數(shù)。通過研究總瀝青層厚度和各結(jié)構(gòu)層參數(shù)與相應(yīng)的計算指標(biāo)之間的關(guān)系，用Minitab統(tǒng)計軟件分析提出柔性基層和組合式基層耐久性瀝青路面力學(xué)響應(yīng)模型，給出了柔性基層和組合式基層耐久性瀝青路面結(jié)構(gòu)參數(shù)設(shè)計流程圖以及如何確定路面結(jié)構(gòu)參數(shù)的方法，通過比對相關(guān)參數(shù)關(guān)系圖確定路面結(jié)構(gòu)參數(shù)組合。 利用有限元軟件優(yōu)化方法對兩種耐久性瀝青路面結(jié)構(gòu)形式進(jìn)行結(jié)構(gòu)優(yōu)化，得出結(jié)構(gòu)經(jīng)濟(jì)合理的耐久性瀝青路面結(jié)構(gòu)組合。
[Abstract]:Durability asphalt pavement has become the most popular research content of asphalt pavement in the world. Although many countries have carried out extensive research on durable asphalt pavement and achieved certain results, but so far, There is no uniform standard on how to design durable asphalt pavement and determine structural parameters, which is still in the stage of development and perfection. In addition, it is necessary to change the single pavement structure form of semi-rigid base in our country. Therefore, this paper analyzes the mechanical response law of pavement structure parameters to flexible base and composite base durability asphalt pavement structure from the angle of pavement structure layer division, and studies the determination method of pavement structure parameters. And carry on the optimization design to two kinds of pavement structure form. Based on the theory of layer division, this paper analyzes the early failure form and mechanism of asphalt pavement, and then determines the calculation index and concrete index of durability asphalt pavement structure to prevent the early damage of asphalt pavement. The structural forms of typical flexible base durable asphalt pavement and composite base durability asphalt pavement are selected, and the mechanical parameters range of each structure layer is determined, and the mechanical calculation model is established. The structure combination and structural parameters of durable asphalt pavement structure of flexible base and composite base are studied systematically by KENPAVE software from the point of view of material nonlinearity. It is known that the structural parameters of durability asphalt pavement are mainly determined by thickness parameters. By studying the relationship between the total asphalt layer thickness, the parameters of each structure layer and the corresponding calculation indexes, the mechanical response model of flexible base and composite base durable asphalt pavement is proposed by Minitab statistical software. The design flow chart of structural parameters of flexible base and composite base of durable asphalt pavement and the method of determining pavement structural parameters are given. The combination of pavement structural parameters is determined by comparing the relative parameter diagrams. The structural optimization of two kinds of durable asphalt pavement structure is carried out by using the finite element software optimization method, and the structural economic and reasonable structure combination of the durable asphalt pavement is obtained.
【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】：2014
【分類號】：U416.217

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