Arching stress/deformation behaviour in geosynthetic reinforced column supported embankments

Daniel King, Joel Gniel, Louis King, Abdelmalek Bouazza, Ha Bui

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

2 Citations (Scopus)

Abstract

Recent research studies investigating the performance and behaviour of full scale geosynthetic reinforced embankments on semi-rigid inclusions located in Melbourne has highlighted the role of sub-soil settlement in the development of the arching mechanism. Following on from this field case study, non-destructive imaging has been undertaken to further investigate these field scale observations. Displacement fields obtained from synchrotron imaging of small-scale embankment models indicates that arching evolves as sub-soil settlement progressively occurs. In the field, this is typically observed to occur as a time-dependent postconstruction mechanism and has important implications for the post-construction performance of the embankment. This paper provides an overview of the research undertaken over the past 5 years and presents an analytical method which describes the development of arching as a function of sub-soil settlement in embankments with semi-rigid inclusions. By incorporating sub-soil settlement as a governing parameter, the development of arching is described through the entire design life of the structure and not just in the ultimate condition.

Original languageEnglish
Title of host publicationProceedings of the 19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
Pages1365-1368
Number of pages4
Publication statusPublished - 2017
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of (South)
Duration: 17 Sep 201722 Sep 2017

Conference

Conference19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
CountryKorea, Republic of (South)
CitySeoul
Period17/09/1722/09/17

Keywords

  • Arching
  • Column supported embankments
  • Load transfer platforms
  • Piled embankments

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