EP 3938578 C0 20231122 - METHOD FOR COMPACTING A BALLAST BED OF A TRACK
Title (en)
METHOD FOR COMPACTING A BALLAST BED OF A TRACK
Title (de)
VERFAHREN ZUM VERDICHTEN EINES SCHOTTERBETTES EINES GLEISES
Title (fr)
PROCÉDÉ POUR COMPACTER UN LIT DE BALLAST D'UNE VOIE FERRÉE
Publication
Application
Priority
- AT 992019 A 20190314
- EP 2020053516 W 20200212
Abstract (en)
[origin: WO2020182393A1] The invention relates to a method for compacting a ballast bed (5) of a track (4) in layers by means of a track construction machine (1) travelling on the track (4), wherein ballast located below sleepers (6) of the track (4) are compacted in at least two layers (20, 21) lying on top of one another, whereby a lower ballast layer (20) is compacted in a first compacting step and subsequently an upper ballast layer (21) above the lower ballast layer (20) is compacted by a tamping process in a second compacting step. Before the compacting, the lower ballast layer (20) and the upper ballast layer (21) are introduced onto the track (4) together, wherein in the first compacting step, vibrating tamping tines (10) of a tamping assembly (7) arranged on the track construction machine (1) are lowered in such a way that tamping tine plates (16) arranged on the free ends of the tamping tines (10) penetrate into the lower ballast layer (20) and held there, vibrating in position, for a predefined time period, and wherein in the second compacting step, the vibrating tamping tines (10) with the tamping tine plates (16) penetrate into the upper ballast layer (21) and are moved towards one another. In this way, a consistently good compacting can be provided for the entire ballast layer located below the sleepers (6).
IPC 8 full level
E01B 27/16 (2006.01)
CPC (source: AT EP)
E01B 27/12 (2013.01 - AT); E01B 27/16 (2013.01 - AT EP); E01B 27/17 (2013.01 - AT); E01B 2203/12 (2013.01 - AT)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Participating member state (EPC – UP)
AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI
DOCDB simple family (publication)
WO 2020182393 A1 20200917; AT 522237 A1 20200915; AT 522237 B1 20240515; EP 3938578 A1 20220119; EP 3938578 B1 20231122; EP 3938578 C0 20231122
DOCDB simple family (application)
EP 2020053516 W 20200212; AT 992019 A 20190314; EP 20705332 A 20200212