Filtration performance of non- woven geotextiles with internally-stable and -unstable soils under dynamic loading

Khan, M. W.; Dawson, A. R.; Marshall, A. M.

Abstract

In many applications, geotextiles are subjected to dynamic loading conditions, for example, below roads and railways, for which a Gradient Ratio (GR) test is often used to assess filtration compatibility of soil-geotextile systems. This paper presents results from GR filtration tests with internally-stable and -unstable soils under dynamic loading conditions. In the tests, four non-woven geotextiles were used with varying types of soils under a hydraulic gradient of 5. Test results were interpreted in terms of GR values, permeability values, and mass and gradation characteristics of the soil before/after testing as well as the particles passing through the geotextiles. The test results show that the dynamic loading resulted in an increase of soil migration within the soil as well as an increase in the quantity of soil passing through the geotextiles. The available criteria for evaluating the internal stability of soils are evaluated based on the experimental data. Based on the test results, improvements to filter retention design criteria are suggested which take into account the internal stability of soils under dynamic loading.

Citation

Khan, M. W., Dawson, A. R., & Marshall, A. M. (2022). Filtration performance of non- woven geotextiles with internally-stable and -unstable soils under dynamic loading. Geotextiles and Geomembranes, 50(2), 293-311. https://doi.org/10.1016/j.geotexmem.2021.11.007

• Journal Article Type: Article
• Acceptance Date: Nov 17, 2021
• Online Publication Date: Feb 2, 2022
• Publication Date: Apr 1, 2022
• Deposit Date: Nov 25, 2021
• Publicly Available Date: Feb 3, 2024
• Journal: Geotextiles and Geomembranes
• Print ISSN: 0266-1144
• Publisher: Elsevier BV
• Peer Reviewed: Peer Reviewed
• Volume: 50
• Issue: 2
• Pages: 293-311
• DOI: https://doi.org/10.1016/j.geotexmem.2021.11.007
• Keywords: Geotechnical Engineering and Engineering Geology; General Materials Science; Civil and Structural Engineering
• Public URL: https://nottingham-repository.worktribe.com/output/6788319
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S026611442100114X
• Additional Information: This article is maintained by: Elsevier; Article Title: Filtration performance of non- woven geotextiles with internally-stable and -unstable soils under dynamic loading; Journal Title: Geotextiles and Geomembranes; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.geotexmem.2021.11.007