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土基回弹模量是表征路基抗变形能力与路面结构设计的重要力学参数,合理科学地选定土基回弹模量,对于延长路面使用寿命,发挥公路建设效益具有十分重要的现实意义。本文在对山区通村公路路基回弹模量实际调查基础上,研究了承德围场地区土基回弹模量参数特征,提出采用MINITAB软件,首先对公路进行路段划分,把回弹模量数值相近的路面单元科学地划分在同一类别内,同时按统计方法对路网中回弹模量值进行显著性检验。然后再对每一路段分别计算路基回弹模量代表值。
The elastic modulus of soil foundation is an important mechanical parameter to characterize the anti-deformability of subgrade and pavement structure design. It is very important to extend the service life of pavement and to exert the benefit of highway construction by reasonably and scientifically choosing the modulus of subgrade resilience. Based on the actual investigation of the resilient modulus of the roadbed in Tongtong Village, the paper researches the characteristics of the elastic modulus of the soil foundation in Chengde Yard. The MINITAB software is proposed. Firstly, the road sections are divided into sections and the springback modulus values are similar Of pavement units scientifically divided into the same category, at the same time by statistical methods on the road network modulus of elasticity test. Then calculate the representative values of the subgrade resilience modulus separately for each section.