CRTSⅡ型板式无砟轨道水泥乳化沥青砂浆施工技术研究

Study of the Construction Techniques for Cement-Emulsified Bitumen Mortar of Type-Ⅱ CRTS Slab-Type Ballastless Tracks

结合京沪高速铁路CRTSⅡ型板式无砟轨道水泥乳化沥青砂浆的施工,详细阐述了水泥乳化沥青砂浆施工中的原材料质量控制、施工准备、质量控制措施等,介绍重点是轨道板及底座的清洗、安装压紧装置、底座预湿、封边、灌注速度控制等关键施工技术,可为类似工程提供有益的借鉴。

With the construction of the cement-emulsified bitumen mortar of type-II CRTS slab-type ballastless tracks for the Shanghai-Beijing High-speed Railway as a practical example,the techniques used in the construction,such as the control of the quality of raw materials,construction preparation,quality control measures,etc.,are introduced in detail in the paper,with greater stress placed on the introduction to the cleaning of the track slabs and supporting seats,the fixing of the clamping devices,the pre-laying of the seats,the sealing of the sides,the control of the pouring speed and other key construction techniques.The paper may serve as a useful reference for other similar projects.