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高速公路路面技术状况是高速公路管理部门大中修方案决策的重要依据,检测数据能否客观、真实的反映路面使用性能会对养护决策产生重要影响。以京津塘高速公路的路面检测数据为依托,研究抽样规模对使用性能的影响。研究表明:高速公路整体技术状况水平较高时,可以适当增大抽样距离,而其检测结果仍能客观反映路面实际情况;增大的抽样距离大小与路线长度相关,当路线长度越长时,抽样结果可靠性越高。其结果可为高速公路路面养护决策提供参考。
The technical condition of expressway pavement is an important basis for decision-making of large and medium-sized repair projects of expressway management department. Whether the test data can objectively or truly reflect the pavement performance will have an important influence on maintenance decision-making. Based on the test data of pavement of Beijing-Tianjin-Tangshan Expressway, the influence of sample size on service performance was studied. The research shows that when the overall technical condition of the expressway is high, the sampling distance can be increased appropriately, and the test results can still objectively reflect the actual conditions of the pavement. The increased sampling distance is related to the route length. When the route length is longer, Sampling results more reliable. The results can provide a reference for highway pavement maintenance decision-making.