双块式无砟轨道施工质量控制技术及措施

Quality Control Technology and Measure for Double-slab Ballastless Track

研究目的:无砟轨道是高速铁路建设中优先选用的轨道形式,为保证双块式无砟轨道施工质量达到精确的三维定位、高度平顺性、耐久少维修的结构特点,针对比选确定的施工方案,通过研究提出施工过程中3个阶段的施工质量控制技术及措施,保证无砟轨道的精度要求。研究结论:通过研究分析得出如下结论:进行施工方案比选,可以更好地把握双块式无砟轨道施工质量控制的重点和关键;开展工艺性试验和施工前的先行试验是可取的,通过对试验过程和数据的总结分析,可进一步完善施工工序和工艺,使工程技术人员全面掌握无砟轨道的施工技术和质量控制措施,达到提高施工质量和轨道精度的要求。

Research purposes： The ballastless track is the preferred track structure for high - speed railway. In order to make the double -slab ballastless track meeting the requirements of 3D positioning, high track regularity and less maintenance, the quality control technology and measure in three construction phases for double - slab ballastless track are offered based on the researches on the chosen construction program for the purpose of meeting the accurate demand of the track. Research conclusions：h is concluded from the research the key points of quality control for double - slab ballstless track can be seized through choice of the construction programs, and the construction procedure and technique can be improved by analyses of the data of the technique tests and the other tests done before the construction. Upon it the engineers can fully master the quality control technology and measure for double - slab ballastless track for improving the construction quality and track accuracy.