本文選題：長壽命復(fù)合式市政路面 + 功能梯度匹配�。� 參考：《武漢理工大學(xué)》2014年碩士論文

【摘要】：半剛性瀝青路面是中國城市主干道的主要路面結(jié)構(gòu)形式，但其往往工程完成不久就出現(xiàn)各種病害甚至嚴重破損，安全運營服役周期普遍小于設(shè)計壽命，因此亟待發(fā)展新型長壽命復(fù)合式路面。本文基于國際長壽命路面設(shè)計理念和功能梯度匹配原理，提出了一種新型長壽命復(fù)合式路面，將高性能冷拌水泥-乳化瀝青混凝土路面應(yīng)用于高壓應(yīng)力區(qū)（聯(lián)結(jié)層），并設(shè)置大粒徑瀝青碎石與水泥穩(wěn)定碎石復(fù)合式基層，可有效減小現(xiàn)有半剛性瀝青路面的結(jié)構(gòu)性破壞與功能性失效問題，實現(xiàn)路面安全營運的長壽命服役周期。 本文對現(xiàn)有瀝青路面的結(jié)構(gòu)分析方法——彈性層狀體系理論及有限元數(shù)值分析方法進行了綜合比較，認為三維有限元模型能更好的表征荷載作用下的路面結(jié)構(gòu)力學(xué)狀態(tài)。研究并提出了長壽命復(fù)合式路面的剛度儲備及強度儲備設(shè)計控制指標，初步探討了長壽命復(fù)合式路面的功能性和技術(shù)經(jīng)濟設(shè)計模型及流程。 本文建立三維有限元模型，施加BZZ100標準車輛荷載，分析路面材料宏觀力學(xué)參數(shù)（彈性模量）與各層結(jié)構(gòu)厚度對長壽命復(fù)合式市政路面的影響，并將長壽命市政路面的設(shè)計理論與實際情況相結(jié)合，提出了宜昌長壽命復(fù)合式市政路面材料及結(jié)構(gòu)厚度組合，結(jié)果分析表明新型長壽命路面結(jié)構(gòu)優(yōu)于相對應(yīng)的常規(guī)半剛性瀝青路面結(jié)構(gòu)。進一步耦合車輛荷載及三維溫度荷載對長壽命復(fù)合式市政路面進行分析，研究得到新型路面結(jié)構(gòu)的夏季代表性溫度場變化曲線，并對車輛-溫度耦合應(yīng)力場對長壽命復(fù)合式市政路面的影響進行了詳盡的分析�？紤]了超載、坡度等復(fù)雜情況對長壽命復(fù)合式市政路面的影響。 本文在長壽命復(fù)合式市政路面宏觀力學(xué)分析的基礎(chǔ)上，選取該路面結(jié)構(gòu)關(guān)鍵材料—水泥乳化瀝青混凝土，分析其細觀力學(xué)尺度的材料影響機理，并比較其宏觀—細觀尺度應(yīng)力（應(yīng)變）場分布規(guī)律及破壞機理，，結(jié)果表明水泥乳化瀝青混凝土細觀結(jié)構(gòu)受力與破壞形式與宏觀尺度并不相同，在宏觀分析基礎(chǔ)上進行路面材料細觀分析能更深入地了解路面結(jié)構(gòu)局部應(yīng)力（應(yīng)變）分布規(guī)律并促進路面材料的合理設(shè)計。
[Abstract]:Semi-rigid asphalt pavement is the main pavement structure form of the main road in Chinese cities, but it often appears a variety of diseases or even serious damage shortly after the completion of the project, and the service cycle of safe operation is generally smaller than the design life. Therefore, it is urgent to develop a new type of long life composite pavement. Based on the international concept of long life pavement design and the principle of functional gradient matching, a new type of long life composite pavement is proposed in this paper. The high performance cold mix cement emulsified asphalt concrete pavement is applied to the high pressure stress zone and the composite base course of large size asphalt macadam and cement stabilized macadam is set up. It can effectively reduce the structural failure and functional failure of the existing semi-rigid asphalt pavement, and realize the long life service cycle of road safety operation. In this paper, the existing structural analysis methods of asphalt pavement, elastic layered system theory and finite element numerical analysis method, are comprehensively compared. It is concluded that the three-dimensional finite element model can better represent the mechanical state of pavement structure under load. The stiffness reserve and strength reserve design control index of long life composite pavement is studied and the design model and flow chart of function and technology economy of long life composite pavement are discussed preliminarily. In this paper, a three-dimensional finite element model is established, and BZZ100 standard vehicle load is applied to analyze the influence of macroscopic mechanical parameters (modulus of elasticity) of pavement material and the thickness of each layer structure on the long-life composite municipal pavement. Combining the design theory of long-life municipal pavement with the actual situation, the combination of material and structure thickness of Yichang long-life composite municipal pavement is put forward. The results show that the new long-life pavement structure is superior to the corresponding semi-rigid asphalt pavement structure. Further coupling the vehicle load with the three-dimensional temperature load to analyze the long-life composite municipal pavement, and obtain the representative temperature field curve of the new pavement structure in summer. The effect of vehicle-temperature coupling stress field on long life composite municipal pavement is analyzed in detail. The influence of complex conditions such as overload and slope on long-life composite municipal pavement is considered. On the basis of macromechanics analysis of long-life composite municipal pavement, this paper selects the key material of the pavement structure, cement emulsified asphalt concrete, and analyzes the material influence mechanism of its meso-mechanical scale. The stress (strain) field distribution and failure mechanism of cement emulsified asphalt concrete are compared. The results show that the stress and failure forms of cement emulsified asphalt concrete are different from those of macro scale. On the basis of macroscopic analysis, the distribution of local stress (strain) of pavement structure can be better understood and the reasonable design of pavement material can be promoted.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U416.2

【參考文獻】

相關(guān)期刊論文 前10條

1 李松齡;裴玉龍;雷同飛;;基于神經(jīng)網(wǎng)絡(luò)系統(tǒng)的附著系數(shù)計算模型[J];東北林業(yè)大學(xué)學(xué)報;2008年02期

2 姚祖康;對國外瀝青路面設(shè)計指標的評述(連載一)[J];公路;2003年03期

3 李峰,孫立軍,胡曉;長壽命瀝青路面設(shè)計方法與實踐綜述[J];公路;2005年07期

4 陳小庭,孫立軍,李峰;長壽命瀝青混凝土路面結(jié)構(gòu)特點與設(shè)計研究[J];公路;2005年08期

5 崔鵬;孫立軍;胡曉;;高等級公路長壽命路面研究綜述[J];公路交通科技;2006年10期

6 曾宇彤,陳湘華,王端宜;美國永久性路面結(jié)構(gòu)[J];中外公路;2003年03期

7 劉立杰;陽宏毅;;瀝青路面車轍形成機理及應(yīng)力影響分析[J];中外公路;2007年05期

8 周述光;王振軍;王笑風(fēng);;乳化瀝青水泥路面混凝土強度形成機理[J];混凝土;2006年01期

9 李嘉;朱偉平;黃新顏;;非均布溫度條件下CRCP+AC復(fù)合式路面溫度應(yīng)力分析[J];湖南大學(xué)學(xué)報(自然科學(xué)版);2009年10期

10 張寧,錢振東,王曦,袁華;超載作用下高速公路瀝青路面設(shè)計參數(shù)敏感性分析[J];交通運輸工程與信息學(xué)報;2005年03期

相關(guān)博士學(xué)位論文 前2條

1 張鵬;熱軋帶鋼中間坯及輸送輥溫度場模型與應(yīng)用研究[D];武漢科技大學(xué);2008年

2 滕旭秋;柔性基層瀝青路面設(shè)計指標及性能預(yù)估模型研究[D];長安大學(xué);2009年

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