SIST EN 13231-3:2006
(Main)Railway applications - Track - Acceptance of works - Part 3: Acceptance of rail grinding, milling and planing work in track
Railway applications - Track - Acceptance of works - Part 3: Acceptance of rail grinding, milling and planing work in track
This part of this European Standard lays down the technical requirements and the measurements to be made for the acceptance of work to re-profile both longitudinally and transversely the heads of railway rails, including the parts of switches and crossings that can be reprofiled.
For acceptance purposes, two classes of longitudinal profile and three classes of transverse profile tolerance are defined.
It also informs about procedures to verify reference instruments to be used for these measurements and informs about a method to approve non-reference instruments to be used for measurements.
It applies to reprofiled vignole railway rails 40 kg/m and above.
A form of acceptance documentation that may be used is given in Annex C.
Bahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von Schleif-, Fräs- und Hobelarbeiten an Schienen im Gleis
Dieser Teil der Europäischen Norm legt die technischen Anforderungen und die auszuführenden Messungen
für die Abnahme von Reprofilierungsarbeiten im Schienenkopflängs- und -querprofil, einschließlich der
Bereiche der Weichen und Kreuzungen, die reprofiliert werden können, fest.
Für die Abnahme werden zwei Klassen von Längsprofil- und drei Klassen von Querprofil-Toleranzen definiert.
Dieser Teil legt auch die Verfahren für die Überprüfung der für diese Messungen zu verwendenden
Bezugsmessgeräte und die Zulassung von für Messungen zu benutzenden Nicht-Bezugsmessgeräten fest.
Dieser Teil gilt für reprofilierte Vignolschienen ab 40 kg/m.
Eine Abnahmeniederschrift, welche angewendet werden darf, siehe Anhang C.
Applications ferroviaires - Voie - Réception des travaux - Partie 3: Criteres de réception des travaux de meulage, fraisage et rabotage des rails en voie
La présente partie de la Norme européenne spécifie les exigences techniques et les mesures relatives a la réception de travaux concernant le reprofilage longitudinal et transversal des champignons de rails de chemin de fer, y compris dans les appareils de voie pouvant etre reprofilés.
Pour les besoins de la réception, deux classes de tolérance de profil longitudinal et trois classes de tolérance de profil transversal sont définies.
Elle informe également sur les procédures a appliquer d’une part pour vérifier les instruments de référence a utiliser pour ces mesures et d’autre part pour approuver les instruments autres que de référence a utiliser pour les mesures.
Elle s’applique aux travaux de reprofilage des rails Vignole de masse supérieure ou égale a 40 kg/m.
Un exemple de documentation de réception qu’il est possible d’utiliser est donné a l’Annexe C.
Železniške naprave – Zgornji ustroj – Prevzem del – 3. del: Prevzemni kriteriji za brušenje, profiliranje in skobljanje vgrajenih tirnic
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Railway applications - Track - Acceptance of works - Part 3: Acceptance of rail grinding, milling and planing work in trackŽelezniške naprave – Zgornji ustroj – Prevzem del – 3. del: Prevzemni kriteriji
za brušenje, profiliranje in skobljanje vgrajenih tirnicApplications ferroviaires - Voie - Réception des travaux - Partie 3: Criteres de réception des travaux de meulage, fraisage et rabotage des rails en voieBahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von Schleif-, Fräs- und Hobelarbeiten an Schienen im GleisTa slovenski standard je istoveten z:EN 13231-3:2006SIST EN 13231-3:2006en45.080Rails and railway componentsICS:SLOVENSKI
STANDARDSIST EN 13231-3:200601-oktober-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13231-3May 2006ICS 45.080 English VersionRailway applications - Track - Acceptance of works - Part 3:Acceptance of rail grinding, milling and planing work in trackApplications ferroviaires - Voie - Réception des travaux -Partie 3: Critères de réception des travaux de meulage,fraisage et rabotage des rails en voieBahnanwendungen - Oberbau - Abnahme von Arbeiten -Teil 3: Abnahme von Schleif-, Fräs- und Hobelarbeiten anSchienen im GleisThis European Standard was approved by CEN on 13 April 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13231-3:2006: E
EN 13231-3:2006 (E) 2 Contents Page Foreword.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.5 4 Longitudinal profile.8 4.1 Principle.8 4.2 Measurements required.9 4.3 Acceptance criteria for longitudinal profile.9 4.3.1 General.9 4.3.2 Moving average of RMS amplitudes.9 4.3.3 Moving average of peak-to-peak amplitude.9 4.3.4 Number of irregularities exceeding a specified amplitude.10 5 Transverse profile.11 5.1 Principle.11 5.2 Measurements required.11 5.3 Acceptance criteria for the transverse profile.11 6 Metal removal.12 6.1 Measurements required.12 6.2 Acceptance criteria for metal removal.12 7 Surface roughness.12 8 Visual appearance: acceptance criteria.13 Annex A (informative)
Procedures to verify reference instruments.16 A.1 Longitudinal profile.16 A.1.1 Principle.16 A.1.2 Calibration beam.16 A.1.3 Coordinate Measuring Machine (CMM).17 A.1.4 Measurement of the calibration beam using the CMM.17 A.1.5 Data analysis.17 A.1.6 Acceptance of calibration beam.18 A.1.7 Measurement of the calibration beam using the test instrument.18 A.1.8 Data analysis using the test instrument.18 A.1.9 Acceptance criteria for reference instruments.19 A.1.10 Test report.20 A.2 Transverse profile.20 A.2.1 Principle.20 A.2.2 Calibration jig.20 A.2.3 Coordinate measuring machine (CMM).20 A.2.4 Calibration jig verification.20 A.2.5 Rail measurements using the test instrument.21 A.2.6 Acceptance of test instruments.21 A.2.7 Test report.21 Annex B (informative)
Procedures to demonstrate correlation of approved and reference instruments.26 B.1 Longitudinal profile.26 B.1.1 Principle.26 B.1.2 Characteristics of the test sites.26 B.1.3 Measurements required.27
EN 13231-3:2006 (E) 3 B.1.4 Data analysis.27 B.1.5 Acceptance criteria for approved instruments.28 B.1.6 Test report.29 B.2 Transverse profile.29 B.2.1 Principle.29 B.2.2 Characteristics of the test sites.30 B.2.3 Measurements required.30 B.2.4 Data analysis.30 B.2.5 Acceptance criteria for approved instruments.30 B.2.6 Test report.31 Annex C (informative)
Example of acceptance documentation for rail re-profiling work.32 Annex D (informative)
Calculation of moving average RMS and moving average peak-to-peak values.34 D.1 Moving average RMS values.34 D.2 Moving average peak-to-peak values.35 Bibliography.36
EN 13231-3:2006 (E) 4 Foreword This document (EN 13231-3:2006) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2006, and conflicting national standards shall be withdrawn at the latest by November 2006. This European Standard is one of the series EN 13231 "Railway applications – Track – Acceptance of works" as listed below: Part 1: Works on ballasted track - Plain line Part 2: Works on ballasted track - Switches and crossings Part 3: Acceptance of rail grinding, milling and planing work in track According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 13231-3:2006 (E) 5 1 Scope This part of this European Standard lays down the technical requirements and the measurements to be made for the acceptance of work to re-profile both longitudinally and transversely the heads of railway rails, including the parts of switches and crossings that can be reprofiled. For acceptance purposes, two classes of longitudinal profile and three classes of transverse profile tolerance are defined. It also informs about procedures to verify reference instruments to be used for these measurements and informs about a method to approve non-reference instruments to be used for measurements. It applies to reprofiled vignole railway rails 40 kg/m and above. A form of acceptance documentation that may be used is given in Annex C. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 3274, Geometrical product specifications (GPS) – Surface texture: Profile method – Nominal characteristics of contact (stylus) instruments (ISO 3274:1996) EN ISO 4287, Geometrical product specifications (GPS) – Surface texture: Profile method – Terms, definitions and surface texture parameters (ISO 4287:1997) EN ISO 4288, Geometrical product specifications (GPS) – Surface texture: Profile method – Rules and procedures for the assessment of surface texture (ISO 4288:1996) EN ISO 11562:1997, Geometrical product specifications (GPS) – Surface texture: Profile method – Metrological characteristics of phase correct filters (ISO 11562:1996) ISO 3611, Micrometer callipers for external measurement 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 angle of inclination of rail the nominal angle at which rail is laid (see Figure 1(b)) e.g. 0° (vertical rails), 2,86° (1:20 inclination), 1,91° (1:30 inclination) etc., inclined towards the centre of the track NOTE For rail which is laid in non-canted track, the angle of inclination of the rail is equal to the angle between the vertical and the centre-line of the inclined rail. 3.2 approved instrument instrument for measurement of longitudinal or transverse profile the usage of which is justified by correlation of its performance with that of a reference instrument in accordance with the agreement between the contractor and the customer (an example is given in Annex B)
EN 13231-3:2006 (E) 6 3.3 characteristic length length on the rail travelled during one rotation of a grinding stone 3.4 class 1, class 2 classes of longitudinal profile differentiated by the proportion of a grinding site reaching a specified standard (see 4.3) 3.5 class Q, class R, class S classes of transverse profile differentiated by the proportion of a grinding site reaching a specified standard (see 5.3) 3.6 cut-off wavelength wavelength of a sinusoidal profile of which 50 % of the amplitude is transmitted by the profile filter NOTE Profile filters are identified by their cut-off wavelength value (see EN ISO 11562). 3.7 deviation of the measured profile deviation between the measured profile and the reference rail, measured normal to the surface of the reference rail when the measured profile and the reference rail are aligned at points A and B1 or A and B2, without rotation of either profile. The deviation is considered positive when the measured profile is above the reference rail (see Figure 3) 3.8 filtered profile profile which results from applying a profile filter to the primary profile
3.9 grinding facet approximately plane sector of the profile of a rail reprofiled by grinding, which is produced by a single grinding stone whose axis of rotation is normal to the rail's longitudinal axis
3.10 moving average of peak-to-peak amplitudes average depth of individual irregularities in a profile which is calculated as a quasi-continuous function of distance along the track; the depth is calculated for that section of the profile which lies within a window of specified length (see Annex D); the function with distance is calculated by incrementing the window along the profile by a distance equal to the sampling interval 3.11 moving average of root-mean-square (RMS) amplitudes root-mean-square amplitude of a profile which is calculated as a quasi-continuous function of distance along the track; the average is calculated for that section of the profile which lies within a window of specified length (see Annex D); the function with distance is calculated by incrementing the window along the profile by a distance equal to the sampling interval 3.12 percentage exceedance percentage length of a test site over which a measurement of the amplitude of the filtered profile exceeds a prescribed limit 3.13 phase correct profile filter profile filter which does not cause phase shifts which lead to asymmetrical profile distortions (see EN ISO 11562:1997)
EN 13231-3:2006 (E) 7 3.14 primary profile representation of the measured longitudinal profile before application of any profile filter
3.15 profile filter electronic device which separates profiles into long-wave and short-wave components, or into components within a specified wavelength range
3.16 rail crown that point on the rail-head surface that is aligned with the centre-line of the web 3.17 range of deviation difference between the maximum and minimum values of the deviation of the measured profile (see Figure 3) 3.18 reference instrument instrument for the measurement of longitudinal or transverse profile the performance of which has been verified in accordance with the procedure agreed upon between the contractor and the customer (an example is given in Annex A) 3.19 reference line line normal to the track's longitudinal axis and tangent to the heads of both rails
3.20 reference point A that point towards the gauge side of a reference rail at which the angle between the reference line and the tangent to the profile is equal to the specified angle of inclination (see Figure 1)
3.21 reference point B1 that point on the gauge face of a reference rail which lies 14 mm below that line that is parallel to the reference line and which passes through reference point A (see Figure 1(a)) 3.22 reference point B2 that point on the gauge corner of a reference rail at which a line which is tangent to the rail lies at an angle of 45° to the reference line (see Figure 1(b)) 3.23 reference profile transverse profile to which rail is to be reprofiled, within the specified tolerances 3.24 reference rail rail with the reference profile, at the desired angle of inclination relative to the reference line (see Figure 1(a)) NOTE In switch and crossing work, with rails laid vertically, it may be desired to reprofile the rail so that its head profile matches that of the adjacent plain line in which rails are inclined at, for example, 1 in 20. In this case, the angle of inclination of the reference rail will be 2,86° (1 in 20). 3.25 reprofiling site continuous length of track where the rail is to be reprofiled
EN 13231-3:2006 (E) 8 3.26 reprofiling zone that area of the railhead of a reference rail between the point at which the tangent to the rail lies at an angle of 70° to the reference line, measured towards the gauge side of the rail, and the point at which the tangent to the rail lies at an angle of 5° to the reference line, measured towards the field side of the rail (see Figure 2)
3.27 sampling interval distance between successive points at which a continuous record of the traced profile is sampled in order to produce the primary profile 3.28 test instrument instrument whose use as a reference instrument or an approved instrument is being tested 3.29 traced profile profile of the rail as recorded by the measuring system 3.30 transition length initial or final section of a length of track where the validity of a measurement of longitudinal or transverse profile is questionable for a variety of reasons, including settling of electronic and digital components and circuits 3.31 window that section of a record of longitudinal profile within which an average amplitude of the record is calculated, and whose length is specified 4 Longitudinal profile 4.1 Principle Measurements are made using either a reference instrument (see 3.18) or an approved instrument (see 3.2). Approved instruments do not offer the same accuracy as reference instruments but are generally adequate for the purpose of demonstrating compliance with the requirements of this standard. NOTE An example of an approved instrument is the type of system used for routine measurements on grinding trains. Some of the systems used for routine measurements on reprofiling trains fall into this category. In accordance with current practice, limits are set on the magnitude of the irregularities that can remain in track after a reprofiling operation. It is recognised, however, that it can be uneconomic to achieve 100 % compliance with these, particularly where isolated top faults, such as wheelburn, exist prior to reprofiling. Two Classes are therefore offered, differentiated by the percentage of the reprofiled track meeting the specified criteria. Where isolated top faults exist, Class 2 offers a lower cost option compared to Class 1 as it will be achieved with fewer passes. However a larger number of isolated non-compliant zones will remain in the reprofiled site. Class 1 also includes limits for very short (10 mm – 30 mm) and very long (300 mm – 1 000 mm) wavelength residual irregularities; these are not included in Class 2. Where corrugations in these wavebands are required to be removed it will also be necessary to specify Class 1. This standard permits the quality of the longitudinal profile to be characterised in any one of the three ways, at the discretion of the client. These are the moving average RMS amplitude of the irregularities in a given waveband, the moving average peak-to-peak amplitude of irregularities in a given waveband and the number
EN 13231-3:2006 (E) 9 of irregularities exceeding the specified limit per 100 m of track. Except in borderline cases all three methods are expected to give similar results. 4.2 Measurements required The longitudinal profile of the finished reprofiled rail shall be recorded continuously using either a reference instrument or an approved instrument. Where independent verification is required a reference instrument shall be used. All measurements undertaken in order to demonstrate compliance with 4.3 shall be recorded. NOTE 1 For measurements in the (10 mm to 30 mm) wavelength range, it is at present unlikely that instruments other than reference instruments will have sufficient accuracy. Measurements shall be undertaken at the latest within 8 days of reprofiling or after the track has carried 0,3 MGT (Million Gross Tons) of traffic, whichever occurs sooner. NOTE 2 It is preferable for measurements to be made immediately after reprofiling. Longitudinal profile measurements shall be made within a distance of 15 mm laterally on the rail from the rail crown, to produce the traced profile. NOTE 3 It is recommended that a digital form of the traced profile, the primary profile, be used for subsequent analysis. 4.3 Acceptance criteria for longitudinal profile 4.3.1 General The acceptance of re-profiled sites shall be on the basis of one of the following sets of criteria, as specified in the contract: moving average of RMS amplitudes (see 4.3.2); moving average of peak-to-peak amplitudes (see 4.3.3); number of irregularities exceeding a specified amplitude (see 4.3.4). 4.3.2 Moving average of RMS amplitudes The primary or traced profile shall be processed to provide a filtered profile within each of the wavelength ranges given in Table 1. The cut-off wavelengths for each wavelength range and the length of the corresponding window within which the pertinent moving average is to be calculated are also given in Table 1. The percentages of any site in which the moving average RMS amplitudes exceed the values specified in Table 2 shall be calculated. These percentages shall not exceed the limits given in Table 4 for the Class specified. 4.3.3 Moving average of peak-to-peak amplitude The primary or traced profile shall be processed to provide a filtered profile within each of the wavelength ranges given in Table 1. The cut-off wavelengths for each wavelength range and the length of the corresponding window within which the pertinent moving average is to be calculated are also given in Table 1. The percentage of any site in which the moving average of peak-to-peak amplitude exceeds the value specified in Table 3 shall be calculated. These percentages shall not exceed the limits given in Table 4 for the class specified.
EN 13231-3:2006 (E) 10 4.3.4 Number of irregularities exceeding a specified amplitude The primary or traced profile shall be processed to provide a filtered profile within each of the wavelength ranges given in Table 1. The cut-off wavelengths for each wavelength range are also given in Table 1. Irregularities in any filtered profile, the peak-to-peak amplitude of which exceeds the limits specified in Table 5 shall be identified. The number of irregularities exceeding these limits in any 100 m of rail shall not exceed the limits given in Table 5 for the class specified. Table 1 — Window lengths Wavelength range (mm) 10 - 30 30 - 100 100 - 300 300 - 1 000 Window length (m) 0,15 0,5 1,5 5 Table 2 — Moving average of RMS amplitude limits Wavelength range (mm) 10 - 30 30 - 100 100 - 300 300 - 1 000 Limit of moving average of RMS amplitude (mm) 0,004 0,004 0,012 0,040 Table 3 — Moving average of peak-to-peak amplitude limits Wavelength range (mm) 10 - 30 30 - 100 100 - 300 300 - 1 000 Limit of moving average of peak-to-peak amplitude (mm) 0,010 0,010 0,030 0,100 Table 4 — Acceptance criteria for longitudinal profile expressed in terms of allowable percentages of track exceeding moving average RMS or peak-to-peak amplitude limits Wavelength range (mm) 10 - 30 30 - 100 100 - 300 300 - 1 000 Class 1 5 % 5 % 5 % 10 % Class 2 No requirement 10 % 10 % No requirement
EN 13231-3:2006 (E) 11 Table 5 — Acceptance criteria for longitudinal profile expressed in terms of numbers of exceedances per 100 m of rail Wavelength range (mm) 10 - 30 30 - 100 100 - 300 300 - 1 000 Limit on peak-to-peak amplitudes (mm) 0,010 0,010 0,030 0,100 Class 1 250 100 25 10 Class 2 No requirement 200 50 No requirement 5 Transverse profile 5.1 Principle Measurements are made using either a reference instrument (see 3.18), or an approved (see 3.2) instrument. Approved instruments do not offer the same accuracy as reference instruments but are generally adequate for the purpose of demonstrating compliance with the requirements of this standard. Reprofiling can be undertaken for a variety of reasons. Where reprofiling is undertaken purely for the removal of corrugation, there may be less need for the rail to be reprofiled with precision. In other cases, it may be necessary for the reprofiled rail to match closely the ideal profile, represented by the reference rail (see 3.24). A range of Classes is therefore included to enable the client to specify the level of precision that is appropriate for the site to be reprofiled. NOTE Where reprofiling is undertaken to improve conicity, Class Q (see 5.3) is likely to be appropriate. The match between the reprofiled rail and the profile of the reference rail is determined by aligning the two at two points and measuring maximum difference between them (see Figure 3). For straight track, these points of alignment generally approximate to the rail crown and the gauge point. On the high rail of curves this method is not applicable if sidewear has occurred and an alternative method of alignment is therefore used. 5.2 Measurements required The rail's transverse profile shall be measured using either a reference instrument or an approved instrument. Where independent verification is required a reference instrument shall be used. All measurements undertaken in order to demonstrate compliance with 5.3 shall be recorded. Measurements shall be made at the latest within 8 days of reprofiling or before the track has carried 0,3 MGT of traffic, whichever occurs sooner. NOTE It is preferable for measurements to be made immediately after reprofiling. The transverse profile of each finished, reprofiled rail shall be measured sufficiently frequently to ensure compliance with the requirements stated in 5.3. The transverse profile shall be recorded at least once per reprofiling site or at an interval of not more than 500 m on a reprofiling site greater than 500 m long. Where independent verification is required, measurements of each rail shall be made at an interval of not less than 10 m throughout the reprofiling site.
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