CAJ | 학술논문

路面混合料的均匀性影响路面的路用性能和使用寿命。基于图像处理技术和 Python 程序语言，结合格子方差法提出颗粒分布离散系数作为均匀性评价指标。采用 CT扫描仪获取不同离析程度的集料截面图像，通过图像处理将集料按不同粒径范围分组，计算每档集料的离散系数，加权平均得出总离散系数；并将此评价指标应用于实际工程中。研究结果表明，用格子方差法计算得出的离散系数作为均匀性评价指标，能够定量地评价路面混合料的均匀性。通过试验研究给出路面混合料离析程度分类的建议值，为路面混合料的现场快速检测提供判定依据。
로면혼합료적균균성영향로면적로용성능화사용수명。기우도상처리기술화 Python 정서어언，결합격자방차법제출과립분포리산계수작위균균성평개지표。채용 CT소묘의획취불동리석정도적집료절면도상，통과도상처리장집료안불동립경범위분조，계산매당집료적리산계수，가권평균득출총리산계수；병장차평개지표응용우실제공정중。연구결과표명，용격자방차법계산득출적리산계수작위균균성평개지표，능구정량지평개로면혼합료적균균성。통과시험연구급출로면혼합료리석정도분류적건의치，위로면혼합료적현장쾌속검측제공판정의거。
The pavement mechanical property and service life can be adversely influenced by pavement material uniformity.Dispersion coefficient as the uniformity evaluation index is put forward based on image processing technology and Python programming language combined with the grid variance method.The CT scanner was used to get the cross ~section images of multiple particle size aggregation and asphalt mixture after compacted.Aggregate was grouped according to the particle size range based on digital image processing methods.Dispersion coefficient of each group of aggregate was calculated.Then total dispersion coefficient of aggregate was obtained by weighted average.And this evaluation is used in the actual project.The results show that the dispersion coefficient was calculated by grid variance method as the uniformity evaluation index can quantitatively evaluate the uniformity of the pavement mix-ture.According to experimental study,the segregation degree classification suggested values of pavement mixture were given,which can provide the base of judgment of the pavement rapid detection.