長大上坡瀝青路面抗剪強度設(shè)計方法研究
發(fā)布時間：2018-11-24 15:06
【摘要】：為了研究多種因素與長大上坡瀝青路面面層內(nèi)部剪應(yīng)力的關(guān)系,以我國高速公路最常見的二軸車和四軸車為例,通過分析瀝青路面剪切流動變形及影響因素,建立了一種移動荷載下長大上坡瀝青路面的動力學(xué)響應(yīng)模型.基于正交試驗方法對多變量進(jìn)行了交叉組合計算,通過對計算結(jié)果的分析,建立了包括載重、速度、坡度和溫度等主要影響因素的長大上坡瀝青路面最大橫向剪應(yīng)力綜合計算模型.根據(jù)長大上坡路段的受力特點,建議在長大上坡瀝青路面的設(shè)計和施工中增加面內(nèi)最大剪應(yīng)力和路面材料抗剪強度控制指標(biāo),并給出了多因素綜合影響下的長大上坡瀝青路面車轍預(yù)測模型.
[Abstract]:In order to study the relationship between various factors and the internal shear stress of asphalt pavement surface, taking the most common two-axle and four-axle vehicles as examples, the shearing flow deformation and influencing factors of asphalt pavement are analyzed. A dynamic response model of long uphill asphalt pavement under moving load is established. Based on the orthogonal test method, the multivariable cross combination calculation is carried out. Through the analysis of the calculation results, the load and velocity are established. The comprehensive calculation model of the maximum transverse shear stress of the asphalt pavement on the long slope with the main influencing factors such as slope and temperature. According to the stress characteristics of long uphill section, it is suggested that the maximum in-plane shear stress and the control index of pavement material shear strength should be increased in the design and construction of long slope asphalt pavement. The rutting prediction model of long-rise uphill asphalt pavement is given under the influence of multiple factors.
【作者單位】： 長安大學(xué)道路施工技術(shù)與裝備教育部重點實驗室;西安陜鼓動力股份有限公司;
【基金】：陜西省交通廳科技項目(08-12K)
【分類號】：U416.217
[Abstract]:In order to study the relationship between various factors and the internal shear stress of asphalt pavement surface, taking the most common two-axle and four-axle vehicles as examples, the shearing flow deformation and influencing factors of asphalt pavement are analyzed. A dynamic response model of long uphill asphalt pavement under moving load is established. Based on the orthogonal test method, the multivariable cross combination calculation is carried out. Through the analysis of the calculation results, the load and velocity are established. The comprehensive calculation model of the maximum transverse shear stress of the asphalt pavement on the long slope with the main influencing factors such as slope and temperature. According to the stress characteristics of long uphill section, it is suggested that the maximum in-plane shear stress and the control index of pavement material shear strength should be increased in the design and construction of long slope asphalt pavement. The rutting prediction model of long-rise uphill asphalt pavement is given under the influence of multiple factors.
【作者單位】： 長安大學(xué)道路施工技術(shù)與裝備教育部重點實驗室;西安陜鼓動力股份有限公司;
【基金】：陜西省交通廳科技項目(08-12K)
【分類號】：U416.217
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