CRTSⅠ型CA砂浆泵送技术研究与应用  

Research and application of CRTSⅠ CA mortar pumping technology

作　　者：王涛[1] 刘子科[1] 李洪刚[1] 李海燕[1] 邵丕彦[1] 

机构地区：[1]中国铁道科学研究院金属及化学研究所,北京100081

出　　处：《铁道科学与工程学报》2016年第9期1681-1685,共5页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(51408610);中国铁路总公司重大课题资助项目(2013G008-A-1)

摘　　要：通过新拌水泥乳化沥青砂浆泵出前后性能指标比较、泵送灌注砂浆揭板检查,和经济性分析,研究CRTSⅠ型CA砂浆泵送施工的可行性。研究结果表明:砂浆泵送前后的现场指标与硬化性能无明显变化,均符合要求;泵送+漏斗灌注施工的砂浆揭板检查效果良好,泵送方式能提高效率,降低人员、机械等费用,可用于大规模施工;直接泵送灌注的砂浆揭板效果良好,提出"抬板叠灌"施工方式,可望快捷修复CRTSⅠ型板式轨道路基不均匀沉降。Through Performance comparison between mortar pumping before and after, CA mortar evaluated by removing slab track, and economic analysis of construction,it was studied on the feasibility of CRTS I CA mortar pumping technology, the results showed that performance index of CA mortar did not change obviously between pre and post pumping, also conform to the technology requirements; by Construction method with pumping- filling and funnel, mortar assessment reveals a positive results by removing slab track, and it also can improve the efficiency, reduce the cost of personnel, machinery etc., So it Can be applied to large-scale construction; Through removing-slab and evaluating, mortar quality is good by pumping directly inside bag under slab,So the construction method u plate-lift and filling double-layer mortar＂ is expected to restore quickly the uneven settle-ment of CRTS I slab track.

关 键 词：CRTSI型板 无砟轨道 CA砂浆 泵送 

分 类 号：U214.15[交通运输工程—道路与铁道工程]