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以宣广高速公路宣广方向为例,分析所划分路段整体及各层结构承载力评价参数值随通车时间的变化规律,结果表明现阶段宣广高速宣广方向道路结构承载能力足够,道路结构承载能力处于平稳阶段。进一步分析宣广方向历年各路段各分层参数值占整体参数值的比例,结果表明整体结构承载力状况随着通车时间增加受面层承载力状况影响越大,面层的结构承载力状况呈现一定的衰退。通过结合交通轴载和养护历史状况分析,本文发现历年交通轴载状况分析和养护历史状况分析与道路结构承载力变化规律分析结果相一致,说明了弯沉盆参数表征道路结构承载力状况的合理性。
Taking Xuan-Guang highway’s propaganda direction as an example, the variation regularity of the evaluation value of the bearing capacity of the whole section and each floor of the divided section is analyzed. The results show that the carrying capacity of the road structure at Xuan-Guang Expressway is sufficient at this stage. Carrying capacity in a stable stage. The result shows that the condition of bearing capacity of the whole structure is more affected by the bearing capacity of the facing as the opening time increases and the bearing capacity of the structure of the facing is presented A certain recession. Based on the analysis of the history of axle loading and maintenance, the paper finds that the analysis of traffic load status and the analysis of conservation history in the past years are consistent with the analysis results of the change of bearing capacity of road structures, which shows that the parameters of deflection sinking basin are reasonable Sex.