Abstract:

The survey of the monolithic track bed is one of the key working procedures of ballastless track construction. Therefore, advanced foreign survey technologies and equipments for ballastless track bed construction are introduced to China and reinnovated to achieve smooth and precise geometric linear parameters and rapind construction survey of tracks. The practice of construction survey for the ballastless monolithic track bed in Feiluan tunnel on WenzhouFuzhou railway is given in this paper. The survey staff, survey equipments and rough adjustment survey control method by simple track panel are presented. The fixed survey procedure combined with track detection car and construction survey control process of ballastless track and the attention items are determined. All of the above ensures the precision requirements of ballastless tracks in long tunnels and the rapid construction.

Key words: ballastless track, monolithic track bed, curve, rapid survey