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轨道板受到各种力作用或由于伸缩变形,将可能产生纵向或横向位移,凸形挡台作为板式轨道的重要组成部分,凸形挡台可限制轨道板的位移,使轨道板保持整体性、平顺性和稳定性。介绍了无砟轨道凸形挡台混凝土浇筑、CA砂浆灌注、环氧树脂填充等关键工序施工要点,从钢筋工程、模板铺设、混凝土养护等方面分析了凸形挡台质量控制要点。
The rail plate is subject to a variety of forces or due to telescopic deformation may have vertical or horizontal displacement, convex block as an important part of the plate rail, convex block limit rail plate displacement, the track plate to maintain integrity, Ride and stability. The key points of the construction of key processes such as the pouring of concrete with ballastless track block, CA mortar pouring and epoxy resin filling are introduced. The key points of the quality control of the convex block are analyzed from the aspects of reinforcing steel bar project, formwork laying and concrete curing.