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桥上岔区板式无砟轨道由道岔部件、预制道岔板、CA砂浆调整层、底座板及纵横向限位结构等部分组成,道岔板的铺设精度直接影响道岔铺设的精调,对桥上岔区的平顺性具有较大影响。结合京沪高速铁路桥上岔区道岔板的施工,详细阐述了桥上道岔板施工的关键技术。
The bridge ballastless slab track is composed of turnout components, prefabricated switchboard, CA mortar adjustment layer, base plate and longitudinal and transverse restraint structures. The accuracy of the laying of the switchboard directly affects the precision adjustment of the switchboard, The smoothness of the area has a greater impact. Combined with the construction of the switchboard in the Shangchapu district of Beijing-Shanghai high-speed railway, the key technologies of the switchboard construction in the bridge are elaborated.