Based on the Upgrading and Reconstruction Project of Guizhou-Guangzhou Railway,this paper proposes to use P95 overhaul train to solve the problem of low efficiency in replacing concrete sleepers in ballast sections of 250 km/h electrified railways.This paper summarize and analyzes the mechanized sleeper replacement from the aspects of process improvement,special sleepers replacement,the construction organization under the backgrourd ofidle time operation and the improvement of equipment quality after the completion of construction,and it is concluded that the construction mode of replacing sleepers with large columns on high-speed railway can greatly reduce the interference of construction on transportation,reduce the labor intensity of operators and improve the quality of operation.
关键词
P95大修列车/更换混凝土轨枕/特殊枕木/天窗作业/高等级有砟线路
Key words
P95 overhaul train/replacement of concrete sleepers/special sleepers replacement/idle time operation/high-grade ballasted track