【摘要】：為了研究濕熱氣候條件下,水泥混凝土路面加鋪瀝青面層的耐久性,以廣西桂柳高速公路路面改造工程為依托,圍繞濕熱氣候條件的舊水泥路面加鋪瀝青面層相關(guān)技術(shù),在舊路評價(jià)與病害處治、加鋪層結(jié)構(gòu)及材料設(shè)計(jì)、施工工藝等方面開展了系統(tǒng)性的研究工作。通過實(shí)踐總結(jié)和理論研究結(jié)合的方法,得出了下述主要研究成果和結(jié)論。(1)在舊水泥混凝土路面調(diào)查評價(jià)方法、實(shí)施方案和調(diào)查評價(jià)關(guān)鍵參數(shù)研究的基礎(chǔ)上,建立了服務(wù)于加鋪層設(shè)計(jì)的舊水泥路面調(diào)查評價(jià)體系;并采用聚類分析法建立了舊水泥路面病害處治決策矩陣;(2)提出了基于功能化的舊水泥路面加鋪瀝青面層結(jié)構(gòu)優(yōu)化設(shè)計(jì)方法并推薦了適用于不同工況的瀝青加鋪層結(jié)構(gòu);(3)針對桂柳高速公路的特點(diǎn),對瀝青加鋪材料進(jìn)行了優(yōu)化設(shè)計(jì),應(yīng)用了性能均衡的應(yīng)力吸收層AC10、更具適應(yīng)性的改進(jìn)型中下面層瀝青混合料和優(yōu)化后的表面層SMA13瀝青混合料,取得了較好的實(shí)施效果;(4)進(jìn)一步明確了舊水泥混凝土路面更換破碎板、板底脫空灌漿、路基灌漿、改性瀝青粘層以及瀝青加鋪層施工中的關(guān)鍵工藝、工序、施工要求、質(zhì)量控制要點(diǎn),對于規(guī)范化施工和保證工程質(zhì)量具有較好的指導(dǎo)意義。
[Abstract]:In order to study the durability of asphalt pavement overlay on cement concrete pavement under humid and hot climate, based on Guangxi Guiliu Expressway pavement reconstruction project, the related technology of overlaying asphalt surface of old cement pavement under humid and hot weather conditions was studied. Systematic research work has been carried out in the aspects of old road evaluation and disease treatment, overlay structure and material design, construction technology and so on. Through the combination of practice summary and theoretical research, the following main research results and conclusions are obtained. (1) on the basis of investigation and evaluation methods, implementation schemes and key parameters of investigation and evaluation of old cement concrete pavement, The investigation and evaluation system of old cement pavement is established, which serves for the design of overlay. The decision matrix of disease treatment of old cement pavement is established by cluster analysis. (2) the optimization design method of asphalt overlay structure based on function is put forward and the asphalt overlay structure suitable for different working conditions is recommended. (3) according to the characteristics of Gui-liu Expressway, the asphalt overlay material is optimized and the stress absorption layer (AC10,) with balanced performance is applied. The improved medium and lower layer asphalt mixture and the optimized surface layer SMA13 asphalt mixture, which are more adaptive, have achieved better implementation results. (4) the key technologies, working procedures, construction requirements and quality control points of the old cement concrete pavement in the construction of replacement broken slab, slab bottom void grouting, roadbed grouting, modified asphalt clay layer and asphalt overlay are further clarified. It has good guiding significance for standardized construction and guarantee of engineering quality.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U416.216

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