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根据多年冻土地区青藏公路路面病害的特点确定了青藏公路沥青路面路面状况评价的指标,依据信息论中熵的方法,得到了路面状况各指标在综合评价中的权重.将路面状况分成优、良、中、次、差五个等级,建立了多年冻土地区路面状况评价的物元模型,通过对路面破损状况物元进行关联度计算,得到了路面破损状况的等级.以青藏公路某路段为例利用建立的物元模型,对路面破损状况进行了评价,结果表明该模型能准确地反映路面破损状况,适合多年冻土地区路面破损的评价.
According to the characteristics of pavement diseases of Qinghai-Tibet Highway in permafrost region, the indexes of pavement condition assessment of Qinghai-Tibet Highway asphalt pavement are determined, and according to the entropy method of information theory, the weight of each condition of pavement condition in comprehensive evaluation is obtained. , Medium, sub-grade and poor grade, a matter-element model of pavement condition evaluation in permafrost regions was established, and the degree of pavement damage status was calculated by calculating the degree of correlation of matter-element pavement damage status. Taking a section of Qinghai- Using the established matter element model to evaluate the condition of pavement damage, the results show that the model can accurately reflect the condition of pavement damage and is suitable for the evaluation of pavement damage in permafrost regions.