EP 4179147 A1 20230517 - INITIAL AND FINAL METHODS FOR LAYING LONG RAILS
Title (en)
INITIAL AND FINAL METHODS FOR LAYING LONG RAILS
Title (de)
ANFANGS- UND ENDVERFAHREN ZUM VERLEGEN VON LANGEN SCHIENEN
Title (fr)
PROCÉDÉS INITIAL ET FINAL DE POSE DE LONGS RAILS
Publication
Application
Priority
- FR 2007221 A 20200708
- EP 2021069066 W 20210708
Abstract (en)
[origin: CA3183514A1] Disclosed is an initial method for laying new long rails (22) of a railway track (20) by means of a work train (100) travelling in a direction of travel (F2), the initial method being intended to be implemented during a process for replacing old rails (21) of the railway track (20), said method comprising a phase (B) during which the new long rails (22) are laid and subsequently fastened to sleepers (23) of the railway track (20) when the work train is travelling in said direction of travel (F2), the initial laying method comprising: a step of laying at least one portion of a first of the new long rails (221) on the sleepers (23) at at least one end (211') of an old joining rail (211); an end-to-end connection step of connecting the end (211') of the old joining rail (211) to at least one end (221') of the first new long rail (221) by means of at least one temporary connection device (30); a step of welding, for example thermite welding, the respective connected ends of the old joining rail (211) and the first new long rail (221); the initial laying method comprising, prior to the laying step, a step of heating or cooling, for neutralising to the reference temperature, at least one end portion (221') of the first new long rail (221), the end portion comprising the end (221') of the first new long rail (221) to which the end (211') of the old joining rail (211) is required to be connected. A final method for laying new long rails (22) of a railway track (20) by means of a work train (100) travelling in a direction of travel (F2) is also disclosed.
IPC 8 full level
E01B 29/17 (2006.01)
CPC (source: EP KR US)
E01B 29/17 (2013.01 - EP KR US); E01B 29/32 (2013.01 - US); E01B 2201/02 (2013.01 - KR)
Citation (search report)
See references of WO 2022008686A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3112353 A1 20220114; FR 3112353 B1 20220715; AU 2021305404 A1 20230202; BR 112023000149 A2 20230131; CA 3183514 A1 20220113; CN 115956148 A 20230411; EP 4179147 A1 20230517; JP 2023532463 A 20230728; KR 20230054662 A 20230425; US 2023279616 A1 20230907; WO 2022008686 A1 20220113; ZA 202213680 B 20230830
DOCDB simple family (application)
FR 2007221 A 20200708; AU 2021305404 A 20210708; BR 112023000149 A 20210708; CA 3183514 A 20210708; CN 202180049676 A 20210708; EP 2021069066 W 20210708; EP 21735569 A 20210708; JP 2022580019 A 20210708; KR 20237003991 A 20210708; US 202118004337 A 20210708; ZA 202213680 A 20221219