【摘要】：本文以深汕高速公路大修工程為依托，開展舊瀝青路面加鋪罩面典型結(jié)構(gòu)設(shè)計方法研究。文中建立了適用于舊瀝青路面罩面結(jié)構(gòu)設(shè)計的路面基層結(jié)構(gòu)剛?cè)徂D(zhuǎn)換公式，并對其在實(shí)際工程中的應(yīng)用進(jìn)行了研究，提出了在實(shí)際應(yīng)用中的路面基層結(jié)構(gòu)剛?cè)崤袛喾椒ǎ贿M(jìn)行了舊瀝青路面罩面結(jié)構(gòu)可靠性設(shè)計方法研究并提出了基于剛?cè)徂D(zhuǎn)換理論體系的罩面結(jié)構(gòu)設(shè)計；最后結(jié)合試驗(yàn)路長期性能觀測及省內(nèi)典型路面結(jié)構(gòu)調(diào)查分析，提出了適合廣東省氣候、水文地質(zhì)、交通及舊路結(jié)構(gòu)情況的瀝青罩面典型結(jié)構(gòu)。主要研究成果如下： ①對舊路面結(jié)構(gòu)進(jìn)行了結(jié)構(gòu)評估，以便更好的了解路面病害發(fā)展?fàn)顩r及現(xiàn)狀，為罩面層結(jié)構(gòu)設(shè)計提供依據(jù)；對各類病害進(jìn)行了統(tǒng)計分析及病害等級評價。 ②研究舊瀝青路面基層結(jié)構(gòu)的剛?cè)徂D(zhuǎn)換標(biāo)準(zhǔn)，認(rèn)為舊路基層的剛?cè)犷愋褪窍鄬τ诿鎸訌?qiáng)度而言的，故從半剛性基層與柔性基層瀝青路面結(jié)構(gòu)層底彎拉應(yīng)力受力模式的不同出發(fā)，回歸分析得到了舊路基層結(jié)構(gòu)剛?cè)犷愋偷呐卸ü健?③應(yīng)用有限元結(jié)構(gòu)分析軟件建立有限元模型對路面基層結(jié)構(gòu)的剛?cè)徂D(zhuǎn)換判定公式進(jìn)行了理論驗(yàn)證，證明了剛?cè)徂D(zhuǎn)換判斷公式具有非常高的可靠性。 ④研究了瀝青路面的結(jié)構(gòu)可靠性理論，建立了基于有限元的瀝青路面結(jié)構(gòu)可靠性計算方法，將可靠度納入瀝青路面及罩面結(jié)構(gòu)設(shè)計中，提出了瀝青路面結(jié)構(gòu)設(shè)計的極限狀態(tài)方程。 ⑤提出了基于剛?cè)徂D(zhuǎn)換理論體系的罩面結(jié)構(gòu)設(shè)計方法，并結(jié)合具體工程實(shí)例進(jìn)行了設(shè)計。 ⑥根據(jù)不同舊路強(qiáng)度在不同交通等級下所需加鋪的罩面層數(shù)對路表彎沉進(jìn)行分段，結(jié)合廣東省路用材料調(diào)查及瀝青路面典型結(jié)構(gòu)研究成果，，提出了不同交通等級及彎沉等級下的瀝青罩面典型結(jié)構(gòu)圖譜。
[Abstract]:Based on the overhauling project of Shenzhenshan Expressway, this paper studies the design method of overlay typical structure of old asphalt pavement. In this paper, the rigid-flexible conversion formula of pavement base structure suitable for the design of overlay structure of old asphalt pavement is established, and its application in practical engineering is studied, and the method of judging rigid flexibility of pavement base structure in practical application is put forward. The reliability design method of overlay structure of old asphalt pavement is studied, and the design of overlay structure based on rigid and flexible transfer theory system is put forward, finally, combined with the long-term performance observation of test road and the investigation and analysis of typical pavement structure in the province, The typical asphalt overlay structure suitable for climate, hydrogeology, traffic and old road structure in Guangdong Province is put forward. The main research results are as follows: 1 the structural evaluation of the old pavement structure is carried out in order to better understand the development and current situation of pavement diseases and provide the basis for the design of overlay structure; Statistical analysis and disease grade evaluation were carried out on all kinds of diseases. 2. The rigid-flexibility conversion standard of the old asphalt pavement base structure is studied. It is considered that the rigid and flexible type of the old asphalt pavement base is relative to the strength of the surface layer. Therefore, starting from the difference of the flexural and tensile stress modes of the semi-rigid base course and the flexible base asphalt pavement structure, Regression analysis obtained the determination formula of the rigid and flexible type of the old subgrade structure. 3 using the finite element structure analysis software to establish the finite element model to verify the determination formula of rigid and flexible transition of pavement base structure, it is proved that the formula of rigid and flexible conversion has very high reliability. (4) the structural reliability theory of asphalt pavement is studied, and the calculation method of structural reliability of asphalt pavement based on finite element method is established, and the reliability is incorporated into the design of asphalt pavement and overlay structure. The limit state equation of asphalt pavement structure design is put forward. 5. The design method of overlay structure based on rigid-flexible transfer theory system is put forward, and the design is carried out with concrete engineering examples. 6According to the number of overlay layers that need to be overlaid under different traffic grades with different old road strength, the road surface deflection is divided into sections, combined with the investigation of road materials used in Guangdong Province and the research results of typical structure of asphalt pavement. The typical structure atlas of asphalt overlay under different traffic grade and deflection grade is presented.
【學(xué)位授予單位】：重慶交通大學(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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