Method for cleaning a ballast bed of a track

Abstract

A method for cleaning a ballast bed of a track using track-bound machines, includes removing ballast below a track panel with a cleaning machine and ballast removal device. Cleaned and/or new ballast is placed in the track in layers relative to a working direction, by a ballast placement device and ballast train. The placed ballast is compacted by a tamping machine and stabilizing machine. Prior to a first tamping, all layers of new and/or cleaned ballast are placed by the ballast placement device and ballast train. The ballast bed is compacted in different depth layers during first tamping by a deep tamping unit. The track is stabilized by the stabilizing machine. The track panel is immediately tamped in one depth layer by the same or another tamping machine in a second tamping, and the track is stabilized after second tamping by the same or another stabilizing machine.

1 - 8 . (canceled) 
     
     
         9 . A method for cleaning a ballast bed of a track by using track-bound machines, the method comprising:
 using a cleaning machine with a ballast removal device to remove ballast located below a track panel;   prior to a first tamping process, using a ballast placement device and a ballast train to place at least one of cleaned or new ballast in a plurality of layers behind in the track relative to a working direction;   using a tamping machine and a deep tamping unit to compact the ballast bed in different depth layers during the first tamping process;   then using a stabilizing machine to stabilize the track;   using the tamping machine to then immediately tamp the track panel in only one depth layer in a second tamping process; and   using the stabilizing machine or a further stabilizing machine to stabilize the track after the second tamping process.   
     
     
         10 . The method according to  claim 9 , which further comprises cleaning the ballast bed at least with a removal height of 300 mm. 
     
     
         11 . The method according to  claim 9 , which further comprises using the ballast placement device to place the ballast for a bed height of at least 200 mm. 
     
     
         12 . The method according to  claim 9 , which further comprises using the ballast placement device to place the ballast for a bed height of at least 250 mm. 
     
     
         13 . The method according to  claim 9 , which further comprises lifting the track panel by at least 50 mm in a first lifting process. 
     
     
         14 . The method according to  claim 9 , which further comprises lifting the track panel by at least 70 mm in a first lifting process. 
     
     
         15 . The method according to  claim 13 , which further comprises lifting the track panel during a second lifting process with a lift in a range between 15 mm and 25 mm. 
     
     
         16 . The method according to  claim 13 , which further comprises lifting the track panel during a second lifting process with a lift in a range between 20 mm and 25 mm. 
     
     
         17 . The method according to  claim 13 , which further comprises:
 after the first lifting process, carrying out the first tamping process in a first depth layer of the ballast bed with vibrating and squeezing tamping tines of the deep tamping unit; and   carrying out the second tamping process in a second depth layer of the ballast bed being higher than the first depth later with the tamping tines.   
     
     
         18 . The method according to  claim 15 , which further comprises carrying out the tamping process after the second lifting process by using a multi-sleeper tamping unit. 
     
     
         19 . The method according to  claim 9 , which further comprises carrying out tamping work with a tamping machine integrated into a cleaning train.