CAJ | 학술논문

采用图像处理分析技术观察SMA沥青混凝土及密级配沥青混凝土在荷载作用下其粗集料移动轨迹的变化，定量描述SMA沥青混凝土粗集料构架形成机制、抗车辙能力成因、粗集料材料形状组合因子偏差等因素，建立粗集料移动轨迹与车辙量的行为模式，研究SMA沥青混凝土材料荷载行为，以使其应用于公路及机场路面能完全发挥其特性。研究结果表明：SMA沥青混凝土粗集料碾压过程中粗集料趋向水平方向移动，且移动量小，粗集料构架处于最稳定阶段，故SMA沥青混凝土车辙量较小，抗车辙能力较好；密级配沥青混凝土中粗集料趋向垂直方向移动，粗集料移动量大，容易造成粗集料构架不稳定，故沥青混凝土车辙量较大。
채용도상처리분석기술관찰SMA력청혼응토급밀급배력청혼응토재하재작용하기조집료이동궤적적변화，정량묘술SMA력청혼응토조집료구가형성궤제、항차철능력성인、조집료재료형상조합인자편차등인소，건립조집료이동궤적여차철량적행위모식，연구SMA력청혼응토재료하재행위，이사기응용우공로급궤장로면능완전발휘기특성。연구결과표명：SMA력청혼응토조집료년압과정중조집료추향수평방향이동，차이동량소，조집료구가처우최은정계단，고SMA력청혼응토차철량교소，항차철능력교호；밀급배력청혼응토중조집료추향수직방향이동，조집료이동량대，용역조성조집료구가불은정，고력청혼응토차철량교대。
This paper adopts image processing analysis technology to observe changes of moving trajectory of coarse aggregates in SMA asphalt concrete and dense-graded asphalt concrete under the effect of load, to quantitatively describe factors such as framework forming mechanism of coarse aggregates,cause of formation of anti-rut capacity and deviation of combined factors of coarse aggregate shape of SMA asphalt concrete,to establish behavior patterns of moving trajectory of coarse aggregates and rut quantity,and to study load behavior of SMA asphalt concrete materials so as to give fully play to its characteristics when applied for highway and airport pavements.The results of research show that coarse aggregates of SAM asphalt concrete move in nearly horizontal direction with small amount of movement during rolling,and coarse aggregate framework is at the most stable stage,therefore,SMA asphalt concrete has small rut quantity and exhibits good anti-rut capacity;coarse aggregates in dense-graded asphalt concrete move in nearly vertical direction with large amount of movement,which is easy to cause unstable coarse aggregate framework,therefore,asphalt concrete shows large rut quantity.