Mechanical behaviors of GRPS track-bed with changing water levels and loading cycles

Han Lin Wang, Ren Peng Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This paper presents a full-scale model study of the mechanical behaviors of geosynthetic-reinforced pile-supported (GRPS) railway track-bed under coupled effects of changing water levels and large number of loading cycles. Four testing procedures were performed: water level increasing, loading at high water level, water level lowering and loading at low water level. The results indicate that with the water level increasing and loading at high water level, the differential settlement between the subsoil (simulated by water bag) and pile cap increased, leading to more significant soil arching effect. When enough loading cycles were applied at high water level, a stable soil arching was developed. At the stable state of soil arch, the distributions of dynamic soil stress were slightly influenced by the lowered water level and loading at low water level. In these two procedures, the overall settlement of the model varied slightly and the differential settlement stayed nearly unchanged.

Original languageEnglish
Title of host publicationSpringer Series in Geomechanics and Geoengineering
EditorsWei Wu, Hai-Sui Yu
PublisherSpringer Verlag
Pages624-627
Number of pages4
Edition216849
ISBN (Print)9783319971117
DOIs
Publication statusPublished - 2018
Externally publishedYes
EventChina-Europe Conference on Geotechnical Engineering, 2016 - Vienna, Austria
Duration: 13 Aug 201616 Aug 2016

Publication series

NameSpringer Series in Geomechanics and Geoengineering
Number216849
ISSN (Print)1866-8755
ISSN (Electronic)1866-8763

Conference

ConferenceChina-Europe Conference on Geotechnical Engineering, 2016
CountryAustria
CityVienna
Period13/08/1616/08/16

Keywords

  • Cyclic loading
  • Geosynthetic-reinforced pile-supported track-bed
  • Settlement
  • Soil arching
  • Water level

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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