Abstract:Research purposes: The CRTS I Slab Track in the experimental section of Wuhan—Guangzhou Passenger Dedicated Line is the first time to be used on the 350 km/h railway line in China.Through doing the researches on the technologies of track measurement,fine adjustment of track slab,mortar fabricating and grouting,a set of suitable construction technologies and equipments for laying CRTS I Slab track has been summarized for providing the experience to the similar works in future.
Research conclusions: The EMU test with the speed of 35 1 km/h on the experimental line shows the all properties of the slab track satisfy the design requirements and the key technologies for laying the CRTS I Slab Track is successful.The triangular compass and portal frame are used for fine adjusting the slab with fast speed and high accuracy.After adjustment,the elevation error of the top surface of the slab is less than 1 mm,the error between the central line of the slab and the central line of convex retailing stand is less than 1 mm,the gap error between the slab and retailing stand is less than 5 mm. and the high—low regularity and directional regularity between the slabs are less than 2 mm,so the technology can be widely used for laying the slab track.
董冲锋. 350 km /h客运专线CRTSI型板式无砟轨道施工关键技术[J]. 铁道工程学报, 2009, 26(5): 28-30.
DONG Chong—feng. Research on the Key Technology for Laying CRTS I Slab Track of 350 km/h Passenger Dedicated Line. 铁道工程学报, 2009, 26(5): 28-30.