EN 13231-3:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Zgornji ustroj - Prevzem del - 3. del: Prevzemni kriteriji za reprofiliranje vgrajenih tirnicBahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von reprofilierten Schienen im GleisApplications ferroviaires - Voies - Réception des travaux - Partie 3 : Critères de réception des rails reprofilés en voieRailway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track93.100Gradnja železnicConstruction of railways45.080Rails and railway componentsICS:Ta slovenski standard je istoveten z:EN 13231-3:2012SIST EN 13231-3:2012en,fr01-marec-2012SIST EN 13231-3:2012SLOVENSKI
STANDARDSIST EN 13231-3:20061DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13231-3
January 2012 ICS 93.100 Supersedes EN 13231-3:2006English Version
Railway applications - Track - Acceptance of works - Part 3: Acceptance of reprofiling rails in track
Applications ferroviaires - Voie - Réception des travaux - Partie 3: Critères de réception des travaux de reprofilage des rails en voie
Bahnanwendungen - Oberbau - Abnahme von Arbeiten - Teil 3: Abnahme von reprofilierten Schienen im Gleis This European Standard was approved by CEN on 20 August 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13231-3:2012: ESIST EN 13231-3:2012

Procedures to verify reference instruments . 15A.1 Longitudinal profile . 15A.1.1 Principle . 15A.1.2 Calibration beam . 15A.1.3 Coordinate Measuring Machine (CMM) . 16A.1.4 Measurement of the calibration beam using the CMM . 16A.1.5 Data analysis . 16A.1.6 Measurement of the calibration beam using the test instrument . 16A.1.7 Data analysis using the test instrument . 16A.1.8 Acceptance criteria for reference instruments . 16A.1.9 Test report . 16A.2 Transverse profile . 17A.2.1 Principle . 17A.2.2 Calibration jig . 17A.2.3 Coordinate measuring machine (CMM) . 17A.2.4 Calibration jig verification . 17A.2.5 Rail measurements using the test instrument . 18A.2.6 Acceptance of test instruments . 18A.2.7 Test report . 18Annex B (normative)
Procedures to demonstrate correlation of approved and reference instruments . 21B.1 Longitudinal profile . 21B.1.1 Principle . 21B.1.2 Characteristics of the test sites . 21B.1.3 Measurements required . 21B.1.4 Data analysis . 22B.1.5 Acceptance criteria for approved instruments . 22B.1.6 Test report . 23SIST EN 13231-3:2012

Calculation of peak to peak values . 29C.1 Calculation of the percentage of exceedances . 29Annex D (normative)
Method of periodic verification . 30D.1 Method of periodic verification of approved instruments . 30D.1.1 Principle. 30D.1.2 Longitudinal profile . 30D.1.3 Static verifications . 30D.1.4 Dynamic verification . 31D.2 Transverse profile . 32D.2.1 Principle. 32D.2.2 Static verifications . 32D.2.3 Dynamic verification . 33D.2.4 Report . 34Annex E (informative)
Example of acceptance documentation for rail reprofiling work . 37Bibliography . 39 SIST EN 13231-3:2012

(ISO 10360-2:2009) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 angle of inclination of rail 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), 1,43° (1:40 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 defined procedure NOTE For procedure to demonstrate correlation, see Annex B. SIST EN 13231-3:2012

It is recommended that a digital form of the traced profile, the primary profile, be used for subsequent analysis. Measurements should be undertaken immediately after work. Measurements shall be undertaken at the latest within 8 days of reprofiling or before the track has carried 0,3 MGT (Million Gross Tonnes) of traffic, whichever occurs sooner. 4.3 Acceptance criteria for longitudinal profile 4.3.1 General The acceptance of reprofiled sites shall be on the basis of percentage of irregularities shown in Table 1. 4.3.2 Peak-to-peak value The percentage of any site in which the amplitude of the filtered profile exceeds the value specified in Table 1 shall be calculated. The primary or traced profile shall be processed to provide a filtered profile within each of the wavelength ranges given in Table 2. Table 1 — Acceptance criteria for longitudinal profile expressed in terms of allowable percentages of exceeding Wavelength range (mm) 10 to 30 30 to 100 100 to 300 300 to 1 000 Class 1 5 % 5 % 5 % 5 % Class 2 No requirement 10 % 10 % No requirement SIST EN 13231-3:2012

The classification concerns the total length of each reprofiling section, where level crossings and switches and crossing work within the length of track are to be excluded. 5 Transverse profile 5.1 Principle Measurements are made using either a reference instrument, see 3.16, 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 European 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 3.22. 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 side wear has occurred and an alternative method of alignment is therefore used. For the necessary annual metrological check, see Annex D. 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 should be undertaken immediately after work. Measurements shall be undertaken at the latest within 8 days of reprofiling or before the track has carried 0,3 MGT (Million Gross Tonnes) of traffic, which ever 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. SIST EN 13231-3:2012

+ 0,3 mm/- 0,3 mm, + 0,2 mm/- 0,4 mm. Table 3 — Minimum proportion of measurements within the specified range Range of deviation (mm) 0,6 1,0 1,7 Class Q 90 % 95 % 98 % Class R No requirement 85 % 98 % Class S No requirement No requirement 75 %
On the field side of the rail outside the reprofiling zone, see 3.25, reprofiling shall be undertaking to – 0,8 mm tolerance. 6 Metal removal 6.1 Measurements required Measurements of metal removal from the railhead are required only if there is a requirement in the contract to demonstrate a minimum or maximum depth of metal removal. All measurements undertaken in order to demonstrate compliance with 6.2 shall be recorded. The height of the rail shall be measured using a micrometer whose accuracy is in accordance with EN ISO 3611. The rail height or height of the rail-head shall be measured before and after reprofiling at a minimum of 5 positions on each rail at distance of no less than 0,5 m apart. Measurements shall be made within a month of reprofiling or one MGT what ever comes first. The rail shall be marked to ensure that measurements before and after reprofiling are made within a distance of 10 mm of each other along the rail. If the rail is initially corrugated, measurements shall be undertaken in the trough of the corrugation. Measurement of the rail height or depth of the railhead shall be processed so as to provide the depth of metal removed within 15 mm transversely of the rail crown, or elsewhere on the railhead as agreed between client and contractor. NOTE Measurements should be recorded once per week or as required by the contract. SIST EN 13231-3:2012

a) Detailed section of railhead, showing reference points A and B1 (α: angle of inclination of the rail) Key 1 reference line 2 14 mm 3 reference point B1 4 reference point A
b) Detailed section of railhead, showing reference point A and B2 (α: angle of inclination of the rail) Key 1 reference line 2 reference point B2 3 reference point A Figure 1 — Definition of terms, and determination of reference points A, B1 and B2 on the transverse profile SIST EN 13231-3:2012

Key 1 reference line 2 re-profiling zone 3 gauge side 4 field side Figure 2 — Reprofiling zone
Key 1 range of deviation 2 point A 3 reference profile - - - 4 measured profile ------ 5 point B1 or B2
NOTE In this example, the range of deviation is negative (measured profile below the reference rail). Figure 3 — Deviation of measured transverse profile from reference profile SIST EN 13231-3:2012

Procedures to verify reference instruments A.1 Longitudinal profile A.1.1 Principle The longitudinal profile of a machined strip on a purpose built beam is measured using both the test instrument and a Coordinate Measuring Machine (CMM). The test instrument is assessed for its ability to make peak amplitude measurements of the profile of the test strip. The test instrument is deemed to be verified as a reference instrument for the acceptance of rails on the basis of peak values if there is satisfactory agreement between the peak values obtained using the test instrument and those made using the CMM. A test instrument accepted as a reference instrument for the acceptance of rails on the basis of peak values is also deemed to be verified for the acceptance of rails on the basis of the percentage of irregularities exceeding a specified amplitude. The procedure involves the assessment of the test instrument for all wavelength ranges and all rail acceptance criteria. Acceptance of the test instrument as a reference instrument may however be limited to specified wavelength ranges NOTE Verification takes place at ambient temperature. Users of reference instruments are recommended to seek the guidance of the instrument manufacturer as to the temperature range over which the verification can be expected to remain valid. A.1.2 Calibration beam The machined strip on the calibration beam shall be not less than 20 mm wide and at least as long as the maximum wavelength for which the test instrument is to be verified. Irregularities of the wavelength and peak to peak amplitudes shown in Table A.1 shall be present on the machined strip. NOTE 1 An additional running-in length at each end of the machined strip may be desirable to avoid the possibility of transient effects corrupting the beginning of a profile record. Table A.1 — Calibration beam irregularities Wavelength range (mm) 10 to 30 30 to 100 100 to 300 300 to 1 000 Peak-to-peak amplitude (mm) 0,005 to 0,015 0,005 to 0,05 0,020 to 0,8 0,080 to 2,0
than 1 mm and the digitisation increment no greater than 1 µm. A.1.6 Measurement of the calibration beam using the test instrument Immediately following the measurement of the calibration beam using the CMM, the calibration beam shall be measured with the test instrument under same installation and temperature conditions. Make three records of the traced profile of the calibration beam along nominally the same path and same direction. Switch on the test instrument in sufficient time for its electronic circuits to stabilize before the measurements are taken. The measurement speed shall be constant to avoid kinematic failures. A.1.7 Data analysis using the test instrument Produce a primary profile from each of the traced profiles and compare the results of each traced profile with results of the CMM. A.1.8 Acceptance criteria for reference instruments For instruments for the measurement of peak-to-peak amplitude and for rail acceptance based on percentage of exceedances of specified peak-to-peak amplitudes the maximum difference between the measurements of the CMM and the test instrument shall be no greater than ± 2 µm and the total number of exceedances shall be no greater than 2 % of the total number of measurement points per measurement line. A.1.9 Test report The following shall be recorded: SIST EN 13231-3:2012

Key A calibration beam B total length of installation C track gauge D machined strip E plane running surface
1 running-in track 2 calibration beam 3 support 4 level adjustment 5 transverse joint Figure A.1 — Schematic diagram of a calibration beam for longitudinal profile measuring equipment SIST EN 13231-3:2012

NOTE The values are shown in mm. Figure A.2 — Longitudinal profile of a calibration beam SIST EN 13231-3:2012

Procedures to demonstrate correlation of approved and reference instruments B.1 Longitudinal profile B.1.1 Principle The train-borne systems used for the routine measurement of the rail's longitudinal profile are not normally accurate enough to enable compliance with this specification to be demonstrated directly. Their use is, however, the only practical option if extensive measurements are to be made. This annex sets out the procedure to be used for the approval of systems for routine measurements. The basis of approval is that the use of such a system shall not generally lead to the acceptance of track that would have been rejected if a reference instrument had been used. To provide assurance of this, the performance of a test instrument for which approval is sought is compared to that of a reference instr
...