Serviceability Limit State Reliability Analysis of Perniö Railway Embankment

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Abstract

In this paper, serviceability limit state reliability analysis of a railway embankment on soft clay is conducted using probabilistic approach. The aim of this study is to evaluate how uncertainties in soil parameters and geometry affect the reliability of the design with respect to maintenance need
assessment. The studied clay deposit is located in Perniö, Finland. Due to intensive laboratory testing, the coefficient of variation of geotechnical parameters for each clay layer could be estimated. Two performance functions were defined based on maximum settlement and maximum change in longitudinal gradient given in Finnish guidelines. In the settlement
calculation, both primary and secondary consolidation were considered. According to the results, uncertainty in gradient changes is more critical and also more challenging to assess compared to uncertainty in total settlement. All in all, reliability analysis will clearly support the assessment
of maintenance need.

Details

Original languageEnglish
Title of host publicationGeo-Risk 2017
Subtitle of host publicationReliability-Based Design and Code Developments
EditorsJinsong Huang, Gordon A. Fenton, Limin Zhang, D. V. Griffiths
Publication statusPublished - 1 Jun 2017
MoE publication typeA4 Article in a conference publication
EventInternational Symposium on Geotechnical Safety and Risk - Grand Hyatt Hotel , Denver, United States
Duration: 4 Jun 20177 Jun 2017
Conference number: 6
http://www.georiskconference.org/

Publication series

NameGeotechnical Special Publication
PublisherAmerican Society of Civil Engineers
Number283
ISSN (Print)0895-0563

Conference

ConferenceInternational Symposium on Geotechnical Safety and Risk
Abbreviated titleGeo-Risk
CountryUnited States
CityDenver
Period04/06/201707/06/2017
Internet address

ID: 13850210