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Author:Auvinen, Turo
Title:Junaliikenteen aiheuttama tärinä ja sen vähentämisen vaikutus asuinviihtyvyyteen
Vibrations caused by train traffíc and the effect of its mitigation on the quality of living
Publication type:Master's thesis
Publication year:2010
Pages:73 [+38]      Language:   fin
Department/School:Insinööritieteiden ja arkkitehtuurin tiedekunta
Main subject:Pohjarakennus ja maamekaniikka   (Rak-50)
Supervisor:Vepsäläinen, Pauli
Instructor:Koivisto, Kirsi
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto     | Archive
Keywords:vibration
quality of living
damping
deep stabilization
human reaction
vibration measurement
test structure
railway traffic
tärinä
asuinviihtyvyys
vaimentaminen
syvästabilointi
ihmisen reaktio
tärinämittaus
koerakenne
junaliikenne
Abstract (eng): Railway traffic induced vibrations in dwellings often cause irritation or disturb the inhabitants.
In this thesis, the effect of vibration countermeasures on the quality of living has been studied.
The study was done by means of a literature study, vibration measurements and written surveys with the financial aid of the Finnish Rail Administration.
The objective of the study was to evaluate the effects of vibration mitigation compared to the increase of inhabitant satisfaction, would the halving of vibration levels lead to a doubling of satisfaction?

The testing was carried out in Raunistula, a suburb of Turku.
Passing along the side of the residential area, the Toijala-Turku railway line causes vibrations in the surrounding areas affecting the quality of residents' life.
To attenuate the vibration, two different structures were constructed, a sheet-pile wall and a matrix of lime-cement columns.

The current status of vibrations and residents' satisfaction was evaluated prior to construction.
After the installation of the fore mentioned walls, a new round of measurements was performed in order to find out how the mitigation succeeded.

Results were found satisfactory, the greatest amount of mitigation was achieved nearest to the track and comments of a rise in the quality of living were achieved.
The mitigation however was limited to a certain distance from the track.
Farther away, partly due to other sources of vibrations, the mitigating effect of the structures was negligible.
Abstract (fin): Tässä diplomityössä syvennytään tutkimaan junaliikenteen aiheuttaman tärinän vaikutusta asuinviihtyvyyteen.
Tutkimus toteutettiin kirjallisuustutkimuksena ja mittaus- sekä asukaskyselytutkimuksena.
Rahoituksen työlle antoi Ratahallintokeskus.
Työn tavoitteena oli selvittää asuinviihtyvyyden paranemista tärinävaimennuksen avulla sekä sen korrelaatiota tärinän vähentymisen määrään.

Tutkimusalueena toimi Raunistulan asuinalue Turussa, jossa Toijala-Turku -radan junaliikenne aiheuttaa häiriöitä alueen asukkaille.
Pohjamaa koostuu paksusta savikerroksesta, ja maanvaraiset asuinrakennukset sijaitsevat aivan junaradan tuntumassa.
Tärinää vaimennettiin kahdella rinnakkaisella rakenteella, ponttiseinällä ja stabilointipilarikennolla.

Tärinän lähtötilannetta ja asukkaiden viihtyvyyttä mitattiin ennen rakentamista suoritetuilla tutkimuksilla, ja tuloksia verrattiin vaimennusseinämien valmistumisen jälkeen saatuihin tuloksiin.

Vaimennus onnistui ja suurin vaikutus koettiin lähimpänä rataa.
Kauempana radasta ei havaittu parannusta, osin muun liikenteen häiritsevästä vaikutuksesta johtuen.
Asuinviihtyvyyden koettiin parantuneen, mutta vaikutusta ei havaittu koko tutkimusalueella.
ED:2010-05-03
INSSI record number: 39532
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