Influence of soil grading on the coefficient of permeability of hydraulic fills

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Abstract

Hydraulic filling is used for land reclamation work and/or to increase the ground level of low-lying
areas. Changes in gradation properties of the hydraulic fill is to be expected during hydraulic filling process which comprises dredging, transportation, deposition, and compaction. These changes in gradation can influence the hydraulic conductivity (permeability coefficient) of the resulting hydraulic fill mass. This hydraulic conductivity is further exacerbated by potential ponding of the transient remnant sea water within the constructed fill mass and its extent in relation to location of points of discharge and the groundwater regime of the area. This paper examines the effect of change in gradation on the hydraulic fill mass coefficient of permeability, using the grading entropy framework to investigate changes in the coefficient of permeability of the hydraulic fill mass. The paper also examines the possibility of applying the gradation entropy framework to assess the liquefaction potential of sand fill mixtures ‘after deposition’ and the in-situ granular foundation strata due to seismic events.
Original languageEnglish
Title of host publicationEuropean Geotechnical Engineering - Unity and Diversity
Subtitle of host publicationProceedings of the 17th Danube–European Conference on Geotechnical Engineering, 7-9 June 2023, Bucharest, Romania
EditorsIrina Lungu, Iancu-Bogdan Teodoru, Loretta Batali
Place of PublicationIşai, România
PublisherPolitehnium Publishing House
Pages617-624
Number of pages8
Volume2
ISBN (Print)978-973-621-522-3
Publication statusPublished - 7 Jun 2023
Event17th Danube - European Conference on Geotechnical Engineering - Bucharest, Romania
Duration: 7 Jun 20239 Jun 2023

Conference

Conference17th Danube - European Conference on Geotechnical Engineering
Abbreviated title17DECGE
Country/TerritoryRomania
CityBucharest
Period7/06/239/06/23

Keywords

  • Hydraulic filling
  • Hydraulic fill mass
  • Grading entropy
  • Coefficient of permeability
  • Liquefaction

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