Diaqnosis of earth-fills and reliability-based desiqn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This research deals with the maintenance strategy of geotechnical structures such as earth-fill dams and river embankments. To determine the soil parameters, the standard penetration test (SPT) iV-values are frequently used. Firstly, a statistical model for the iV-values is determined from sounding test results. In this research, Swedish Weight Sounding (SWS) tests, simpler than SPT, are employed. Secondly, an indicator simulation is conducted to interpolate the spatial distribution of the N-values, and the results are utilized to find degraded areas inside the embankments and to maintain the embankments. Based on the statistical model for the iV-values, the shear strength parameter is derived through the empirical relationships, and then a reliability analysis of the embankments is conducted considering the variability of the internal friction angle. Finally, the effect of improving the embankments is discussed, comparing the calculated risks of the original state with the improved and restored state.

Original languageEnglish
Title of host publication18th International Conference on Soil Mechanics and Geotechnical Engineering
Subtitle of host publicationChallenges and Innovations in Geotechnics, ICSMGE 2013
PublisherIOS Press
Pages599-602
Number of pages4
Volume1
Publication statusPublished - Jan 1 2013
Event18th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2013 - Paris, France
Duration: Sep 2 2013Sep 6 2013

Other

Other18th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2013
CountryFrance
CityParis
Period9/2/139/6/13

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Keywords

  • Earth-fill dam reliability-based design
  • Indicator simulation
  • Statistical model of N-value

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Nishimura, S., Shuku, T., & Suzuki, M. (2013). Diaqnosis of earth-fills and reliability-based desiqn. In 18th International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and Innovations in Geotechnics, ICSMGE 2013 (Vol. 1, pp. 599-602). IOS Press.