Out Langbericht Nr. Codice generale Einlagezahl Allegato Ausfertigung Indicativo copia AUSBAU EISENBAHNACHSE MÜNCHEN - VERONA BRENNER BASISTUNNEL UVE POTENZIAMENTO ASSE FERROVIARIO MONACO - VERONA GALLERIA DI BASE DEL BRENNERO DCA Technische Projektaufbereitung Elaborazione tecnica del progetto 00 Angelegt / Inizializzato 18.12.2006 Schweiger Datum / Data Name / Nome Datum / Data Name / Nome Datum / Data Name / Nome Paraphe / Sigla Nr. Änderung / Modifica Erstellung / Creazione Bearbeitung / Redazione Prüfung / Controllo Kostenstelle Centri di costo Brenner Basistunnel Galleria di base del Brennero Gegenstand Oggetto Public Health Public Health Technischer Bericht Relazione tecnica Titel Titolo Vibrationsmessungen im Wipptal Misurazioni delle vibrazioni nella Wipptal Ausgangssprache : Maßstab / Scala Lingua di partenza : Status: Angelegt Stato: Inizializzato Letzte Änderung / Ultima modifica: 18.12.2006 10:24:20 Projektkilometer / Progressiva di progetto von /da 0+960,00 bis / al 58+000,00 bei / a - Auftragnehmer: Affidatario: Fertigung: Firma: Datum: Data: Freigegeben am / von: , Approvato il / da: , 1 00 000 - AU 000 000 - PH - D0068 - TB - 00017 - 00
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Out Langbericht Nr. Codice generale
Einlagezahl Allegato Ausfertigung
Indicativo copia
AUSBAU EISENBAHNACHSE
MÜNCHEN - VERONA
BRENNER BASISTUNNEL
UVE
POTENZIAMENTO ASSE FERROVIARIO MONACO - VERONA
GALLERIA DI BASE DEL BRENNERO
DCA
Technische Projektaufbereitung Elaborazione tecnica del progetto
00 Angelegt / Inizializzato 18.12.2006 Schweiger
Datum / Data Name / Nome Datum / Data Name / Nome Datum / Data Name / Nome Paraphe / Sigla
Nr. Änderung / Modifica Erstellung / Creazione Bearbeitung / Redazione Prüfung / Controllo
Kostenstelle Centri di costo
Brenner Basistunnel Galleria di base del Brennero
Gegenstand Oggetto
Public Health Public Health
Technischer Bericht
Relazione tecnica
Titel Titolo
Vibrationsmessungen im Wipptal Misurazioni delle vibrazioni nella Wipptal
Ausgangssprache : Maßstab / Scala
Lingua di partenza : Status: Angelegt Stato: Inizializzato
Letzte Änderung / Ultima modifica: 18.12.2006 10:24:20
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100000-AU000000-PH-D0068-TB-00017-00
I N H A L T S V E R Z E I C H N I S I N D I C E
1. GENERAL INFORMATION: ........................................................................................................................ 6
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Report about some Pilot-Vibration Measure-
ments in the Wipptal
A supplemental data base for the BBT Public Health project
Date: Wednesday, March 15, 2006 Version: 9.0
RELEVANT STANDARDS This report follows: DIN 4150-2: Structural Vibration Part 2: Human exposure to vibration in buildings DIN 45669-1: Measurement of vibration immission, requirements on vibration meter. ISO 2631-1 (1997) ISO 2631-2 (2003)
DISCUSSION The ISO and DIN standard are not directly related to each other. DIN starts from vibration velocity measurement while the ISO standard is based on acceleration measurements. However when studying the frequency weighting curves suggested by both standards, it becomes clear that this difference is immediately removed by this weighting: there is an additional component proportion-al to frequency that corresponds to a time derivative and thus translates velocity to acceleration (or vise versa). The specifications of frequency weighting are different but capture the same es-sential feature: a selection of frequencies between 1 and 80 Hz. Assessment of longer time exposure is quite different between the two norms. In the DIN stand-ard a peak exposure level is obtained by subdividing the signal in short intervals and finding the maximum value within each interval. In the ISO standard, the effect of peaks is promoted at the one hand by the maximum of the short term averaged effective value (slow time weighting), at the other hand by calculating fourth power average rather than the square average (effective value). DIN 4150-2 gives a clear indication of acceptable levels in different living environments, attaching more weight to peak values than to the average exposure. ISO 2631-2 gives guidelines on how to fix limits, but leaves this task essentially to local governments. It uses the effective value as a primary indicator and adds the other indicators only as required. Because of the observations made above, it was decided to use DIN 4150-2 for the assessment in this document.
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1. GENERAL INFORMATION:
LABORATORIES RESPONSIBLE FOR THE MEASUREMENTS Measurements were performed by psiA-Consult as a subcontractor of the Medical University Innsbruck, Department of Hygiene, Microbiology and Social Medicine, post processing and eval-uation were performed by Information Technology – group Acoustics of the Ghent University, Belgium. Medical University Innsbruck Department of Hygiene, Microbiology and Social Medicine Division of Social Medicine Sonnenburgstr. 16 A-6020 Innsbruck, Austria Prof. Dr. P. Lercher, psiA-Consult GmbH Lastenstraße 38/1 A-1230 Wien / Österreich Dr. Manfred T. Kalivoda Ghent University Information technology – Group Acoustics St-Pietersnieuwsstraat 41 9000 Ghent, Belgium Prof. dr. ir. D. Botteldooren, Ir. Bram De Greve, Lic Luc Dekoninck, Ir. Bert De Coensel,
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2. MEASUREMENT SETUP
Measurement equipment and setup Measurements were made using the Artemis software of Head Acoustics with DAT recording. Da-ta from a binaural head (Head Acoustics), a sound pressure microphone (Rion) and a vibration sensor were recorded simultaneously. During the measurements, a clearly distinguishable events were written down for possible elimination from the measurements at a later stage.
Processing The Artemis software of Head Acoustics does not allow evaluating vibration levels directly. Hence wav-files (z-vibration channel only) had to be extracted from the specific Head Acoustics format-ted file. Calibration factors and time settings were retrieved from the Head Acoustics-files and from available metadata. The measurement data were inspected and cleaned where necessary. Only documented meas-urement sequences were selected and will be evaluated. In one measurement sequence a local event had to be removed to be able to evaluate the vibrations due to train events. The wav-files were processed according to DIN 45669-1. The signal is filtered to account for spe-cific sensitivity of the human body to particular vibration frequencies.
3. MEASUREMENT LOCATIONS OVERVIEW In Table 1 an overview of the measurement point locations is listed with address and UTM coor-dinates.
MPnr Locality Address Nr Address-Key
UTM_X UTM_Y Distance from track
MP1 Steinach Promenadenweg 14 7035500394 687627 5217679 23 m
MP2 St-Jodok Schmirn 122 7034900710 689549 5215274 15 m
MP3 Matrei Matrei am Bren-ner
115 7032700116 686102 5222583 15-20 m
MP4 Mittewald Bergstrasse 3 560084 696271 5186783 20 m
MP5 Grasstein Kurfarstrasse 9 560025 693390 5188298 20 m
MP6 Wiesen Wiesen, Bren-nerstr.
11 520018 685227 5196993 20 m
Table 1: Location of the measurement points. .
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In Table 2 the location of the accelerator within the building and the description of the mounting conditions are presented. In Appendix A, a drawing of the room and the locations of the recording instruments is given.
MPnr Location in Building Accelerator mounting
MP1 Steinach Kitchen Linoleum on Estrich floating on Concrete floor
MP2 St-Jodok Living room Parket/Wooden floor on Estrich floating on Concrete elements
MP3 Matrei Living room Parket/Wooden floor
MP4 Mittewald Living room Parket/Wooden floor
MP5 Grasstein Working room Wooden floor
MP6 Wiesen Sleeping room Parket/Wooden floor
Table 2: Location of the accelerator in the building with a description of the mounting con-ditions.
4. MEASUREMENT LOCATION SITE PLANS Figure 1 to Figure 7 give site plans of the measurement locations. Figure 1: MP1 steinach site plan
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Figure 2: MP2 St-Jodok site plan
Figure 3: MP3 Matrei site plan
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Figure 4: MP4 Mittewald site plan
Figure 5: MP5 Grasstein.
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Figure 6: MP6 Wiesen.
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5. MEASUREMENT SEQUENCES OVERVIEW At each measuring location, several measurement sequences have been recorded rather than one single long term observation. This is mainly due to technical reasons (length of recording, disturbances…). All recordings were made during daytime (7u-19u). MS MP Date & time start Date&time end Duration
6. MEASUREMENT SEQUENCES DETAILED RESULTS In Appendix B the measured vibration levels for all measurement sequences are presented in de-tail together with the resulting KBFmax and KBFTm (rms-value). It becomes clear that although all measurement locations are at comparable distance to the track, that vibration levels differ signifi-cantly both in magnitude and in typical pattern. This is not surprising given the very different types of measurement point chosen within the house and the expectable broad range in underground structure in the study area.
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7. EVALUATION All measurement points are located in residential areas. The guideline values according to DIN 4150-2 are presented in Table 3.
Evaluation
Day Night
Au A0 Ar Au A0 Ar
4. Residential areas 0.15 3 0.07 0.1 0.2 0.05
Table 3: Guideline values for evaluating human exposure to vibration in dwellings and simi-lar spaces (Au= Lower Limit, A0 = upper limit, Ar = value for comparison with KBFtr values).
The evaluation procedure is presented in Figure 7.
Figure 7: Evaluation procedure as presented in section 6.2 of DIN 4150-2.
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8. MEASUREMENT SEQUENCES EVALUATION The following parameters are needed for the evaluation:
• KBFmax • KBFtr, correction of KBFTm(rms) according to the rest periods.
The rest period is defined between 6:00 to 7:00 and 19:00 to 22:00 for working days and Satur-day, and from 6:00 to 22:00 for Sundays and holidays. No rest periods are within the night period. The evaluation with respect to Ar during nighttime is performed using uncorrected value of KBFTm(rms). Table 4 shows the final evaluation of the measured sequences and the steps leading up to it. Be-cause the main source of vibrations (trains) is very constant over the day and the night, the vibra-tion level recorded during the day is used in the evaluation for the night as if this level would have also been recorded during this period.
Table 4: Evaluation for each measurement sequence.
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Table 5 gives an overview per measurement location. The general guidelines proposed in DIN 4150-2 are all exceeded in MP3 and MP5.
9. MEASUREMENT EVALUATION FOR RAIL TRAFFIC ACCORDING TO AP-PENDIX A OF DIN 4150-2.
The number of measured railway events per location is rather small compared to the require-ments for statistically accurate evaluation of railway vibrations as proposed in DIN 4150-2. The evaluation has to be based on some assumptions:
• The average of the KBFmax value for all measured sequences at a given measurement point is representative for the typical train vibration. This value is use to describe the vi-bration of a rail event without distinction between goods or passengers traffic.
• Long-term noise measurements at close distance from the railway track can be used to calculate the number of events and the number of influenced 30s-cycles (e.g. an event longer than 30 seconds but shorter than 60 seconds affects two cycles). For North Tirol, the noise measurements in Pfons are used, for south Tirol noise measurements at Freienfeld are used. The results are shown in Table 6.
Since no distinction is made in the events an overall correction factor can be calculated to convert KBFmax into KBFtr. This factor is also shown in Table 6.
Table 6: Traffic data and duration of events in North and South Tirol.
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In Table 7 the evaluation is shown based on KBFmax and KBFTr obtained using the procedure pre-scribed for railway vibrations. The result of this evaluation leads to very similar conclusions as those obtained in the previous section. The rest periods are evaluated less strictly then in the general evaluation. Therefore the daytime guidelines Ar are not exceeded, except for MP5 Grasstein. For the night, the evaluation is identical: guidelines exceeded for MP3 Matrei and MP 5 Grasstein. If A0 is exceeded no evaluation has to be done for Ar, since the guideline are already exceeded, in the table this is indicated as ‘not available’ (N/A).
10. CONCLUSION Vibration levels caused by railway traffic meet the guideline criteria according to DIN 4150-2 for the day period at all measurement locations, except MP5 Grasstein. For the night period, vibra-tion levels at MP3 Matrei and MP5 Grasstein exceed the guideline values both in maximum vibra-tion level and in nightly average. This final evaluation is summarized in Table 8.
MP Day Night
MP1 Steinach Valid Valid
MP2 St-Jodok Valid Valid
MP3 Matrei Valid Exceeds
MP4 Mittewald Valid Valid
MP5 Grasstein Exceeds Exceeds
MP6 Wiesen Valid Valid
Table 8: Final evaluation overview.
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All measurement points are at approximately the same distance to the track and it can safely be assumed that the rolling stock is similar at all locations. Differences in observed vibration levels and resulting evaluation are thus most probably caused by: the type of floor the vibration sensor is attached to, the structure of the house, the sleepers and rail quality and connection1, and the type of underground. In future scenarios, studied in the BBT-project, there is no reason to expect that the vibration level of individual train passages are going to change since these scenarios involve no plan to change the track in the Wipptal. Thus the evaluation based on maximum levels is expected to remain similar as it is today. In the “consens” scenario – tunnel is built – there will be far less good trains, especially during the night. Therefore the evaluation following DIN 4150-2 based on average lev-els will become more favorable. This means that the negative evaluation during the day at MP5 will vanish. The negative evaluation during the night at MP3 and MP6 are based on exceeding a maximum levels and thus will only change if all trains causing strong vibrations are removed dur-ing the night. Nevertheless the vibration exposure of people living within the studied area of 20 m around the railway track in the Wipptal will clearly improve in this scenario, also if the maximum level is not reduced.
1 Note that some of the measurements are taken close to locations where trains pass switches, joints, stations and thus additional vibrations may be introduced and/or train speed may reduce.
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Appendix A MP1 Steinach
MP2 Jodok
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MP3 Matrei
MP4 Mittewald
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MP5 Grasstein
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Appendix B
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11. VERZEICHNISSE
1. ELENCHI
11.1. Tabellenverzeichnis
1.1. Elenco delle Tabelle
Table 1: Location of the measurement points. ....................................................................................... 7 Table 2: Location of the accelerator in the building with a description of the mounting conditions. ...... 8 Table 3: Guideline values for evaluating human exposure to vibration in dwellings and similar spaces
(Au= Lower Limit, A0 = upper limit, Ar = value for comparison with KBFtr values). .................. 13 Table 4: Evaluation for each measurement sequence. ....................................................................... 14 Table 5: Summary of the evaluation. ................................................................................................... 15 Table 6: Traffic data and duration of events in North and South Tirol. ................................................ 15 Table 7: Evaluation of KBFtr as calculated according to specifications for railway events. .................. 16 Table 8: Final evaluation overview. ..................................................................................................... 16
11.2. Abbildungsverzeichnis
1.2. Elenco delle illustrazioni
Figure 1: MP1 steinach site plan ............................................................................................................. 8 Figure 2: MP2 St-Jodok site plan ............................................................................................................ 9 Figure 3: MP3 Matrei site plan ................................................................................................................ 9 Figure 4: MP4 Mittewald site plan ......................................................................................................... 10 Figure 5: MP5 Grasstein. ...................................................................................................................... 10 Figure 6: MP6 Wiesen. ......................................................................................................................... 11 Figure 7: Evaluation procedure as presented in section 6.2 of DIN 4150-2. ........................................ 13
11.3. Literatur und Quellen
1.3. Bibiliografia e fonti
11.3.1. Literatur
1.3.1. Bibiliografia
11.3.2. Quellen
1.3.2. Fonti
11.4. Abkürzungsverzeichnis
1.4. Elenco delle abbreviazioni
11.5. Pläne und sonstige Unterlagen
1.5. Elaborati grafici ed ulteriore documentazione
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