基于灰度共生矩阵的水泥稳定碎石损伤表征指标  

Damage characterization indexes of cement stabilized macadam based on gray level co-occurrence matrix

作　　者：吕悦晶[1,2] 李家琪 魏彩霞 权磊 汤文[1] 麻春杰[1] LYU Yuejing;LI Jiaqi;WEI Caixia;QUAN Lei;TANG Wen;MA Chunjie(School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan,Hubei 430065,China;Qinghai Provincial Highway Bureau,Xining,Qinghai 810001,China;Fujian Jianke Institute Inspection and Testing Co.,Ltd.,Xiamen,Fujian 361000,China;Research Institute of Highway,Ministry of Transport,Beijing 100088,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,湖北武汉430065 [2]青海省公路局,青海西宁810001 [3]福建省建科院检验检测有限公司,福建厦门361000 [4]交通运输部公路科学研究院,北京100088

出　　处：《江苏大学学报(自然科学版)》2025年第2期200-204,220,共6页Journal of Jiangsu University:Natural Science Edition

基　　金：国家自然科学基金资助项目(52178427);青海省重点研发与转化计划项目(2021-QY-207);青海省交通运输厅科技项目(2022-01)。

摘　　要：为了更好表征水泥稳定碎石损伤过程,基于灰度共生矩阵理论,提出了损伤表征指标——可移灰度级对(Psgl)和损伤度(D),分析了骨架空隙型和骨架密实型两种典型结构的水泥稳定碎石材料的损伤过程,计算水泥稳定碎石断面在不同损伤程度下的损伤表征指标.结果表明:可移灰度级对可以表征水泥稳定碎石材料的损伤过程;随着荷载级位的增加,水泥稳定碎石的损伤度以二次抛物线的形式逐步增加,损伤的发展累积损伤度约占整个加载过程的80%;骨架空隙型结构试件的损伤发展速率在整体上要高于骨架密实型结构试件.To better characterize the damage process of cement stabilized crushed stone,based on the gray level co-occurrence matrix theory,the damage characterization indexes of moveable grey level pair(Psgl) and damage degree(D) were proposed.The damage processes of cement stabilized crushed stone materials with two typical structures of skeleton void type and skeleton compact type were analyzed.The damage characterization indexes of Psgl and loss degree parameter of D of cement stabilized crushed stone sections were calculated under different damage degrees.The results show that the damage process of cement stabilized crushed stone can be characterized by the moveable gray scale on Psgl.With the increasing of load,the damage degree parameter D of cement stabilized gravel is gradually increased in the form of quadratic parabola,and the cumulative damage degree of the damage development accounts for about 80% of the whole loading process.The damage development rate of the skeleton void structure specimen is higher than that of the skeleton chamber structure specimen.

关 键 词：水泥稳定碎石 裂纹 损伤表征指标 CT图像 灰度共生矩阵 可移灰度级对 

分 类 号：U414[交通运输工程—道路与铁道工程]