Location
Arlington, Virginia
Date
14 Aug 2008, 2:15pm - 4:00pm
Abstract
The paper describes the mechanical behaviour of double porosity clay fills. A trial embankment had been constructed on a 20-30 year-old landfill and monitored for 3 years. The embankment was instrumented by hydrostatic levelling profiles, surveying reference points, pore pressure gauges, inclinometers and depth reference points. Centrifuge modelling of the embankment behaviour on the consolidated landfill was carried out in the geotechnical centrifuge at ETH Zürich in Switzerland. The models were instrumented similarly to the real embankment with pore pressure transducers and a newly developed tool called “system of straws” for measurement of deformation at different depths. Surface deformations were measured by laser scanning. The results of centrifuge modelling are compared with in-situ data. The degradation of the double porosity structure in the vertical profile of the landfill, and its influence on the permeability of the soil is discussed.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Najser, Jan; Pooley, Emma; Springman, Sarah; Laue, Jan; and Boháč, Jan, "Construction of Motorway on Double Porosity Clay Fill" (2008). International Conference on Case Histories in Geotechnical Engineering. 11.
https://scholarsmine.mst.edu/icchge/6icchge/session07/11
Construction of Motorway on Double Porosity Clay Fill
Arlington, Virginia
The paper describes the mechanical behaviour of double porosity clay fills. A trial embankment had been constructed on a 20-30 year-old landfill and monitored for 3 years. The embankment was instrumented by hydrostatic levelling profiles, surveying reference points, pore pressure gauges, inclinometers and depth reference points. Centrifuge modelling of the embankment behaviour on the consolidated landfill was carried out in the geotechnical centrifuge at ETH Zürich in Switzerland. The models were instrumented similarly to the real embankment with pore pressure transducers and a newly developed tool called “system of straws” for measurement of deformation at different depths. Surface deformations were measured by laser scanning. The results of centrifuge modelling are compared with in-situ data. The degradation of the double porosity structure in the vertical profile of the landfill, and its influence on the permeability of the soil is discussed.
