本文選題：非對(duì)稱路堤　切入點(diǎn)：土工格柵　出處：《武漢大學(xué)學(xué)報(bào)(工學(xué)版)》2017年03期

【摘要】：由于受到黃土山區(qū)地形地貌條件的制約,在黃土山區(qū)修筑高速公路時(shí)經(jīng)常會(huì)遇到非對(duì)稱路堤問題,而非對(duì)稱路堤極易引起各類路基路面病害.基于有限元分析軟件,建立了非對(duì)稱路堤數(shù)值模型,對(duì)比分析了未加筋、格柵加筋和EPS加筋3種工況下非對(duì)稱路堤受力和變形特性.最后,針對(duì)運(yùn)煤通道交通荷載特點(diǎn),著重探討了非對(duì)稱交通荷載作用下3種工況下路堤的工作特性.研究結(jié)果表明:路堤施工過程中,EPS加筋技術(shù)處治效果要優(yōu)于格柵加筋;但交通荷載作用下格柵加筋工況下路堤沉降、側(cè)向變形明顯小于EPS加筋工況,非對(duì)稱路堤處治時(shí)宜采用格柵加筋技術(shù).
[Abstract]:Due to the constraints of topographic and geomorphological conditions in the Loess Mountain area, the problem of asymmetric embankment is often encountered in the construction of expressway in the Loess Mountain area, and the asymmetric embankment can easily cause various kinds of subgrade and pavement diseases.Based on the finite element analysis software, the numerical model of asymmetric embankment is established, and the stress and deformation characteristics of asymmetric embankment under unreinforced, grid-reinforced and EPS reinforced conditions are compared and analyzed.Finally, according to the traffic load characteristics of coal transport channel, the working characteristics of embankment under three working conditions under asymmetric traffic load are discussed emphatically.The results show that the treatment effect of EPS reinforcement technology is better than that of grid reinforcement during embankment construction, but the lateral deformation of embankment under the condition of grid reinforcement under traffic load is obviously smaller than that of EPS reinforced condition.Asymmetric embankment treatment should adopt grid reinforcement technology.
【作者單位】： 山西省交通科學(xué)研究院黃土地區(qū)公路建設(shè)與養(yǎng)護(hù)技術(shù)交通行業(yè)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(編號(hào):51608316) 交通建設(shè)科技項(xiàng)目(編號(hào):2014318771100) 山西省交通廳科技項(xiàng)目(編號(hào):2014-1-2)
【分類號(hào)】：U416.12

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