Journal article
Seepage induced slope instability
Geotextiles and geomembranes, v 14(7), pp 425-445
1996
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The incidence of seepage induced failures has decreased significantly due to the drainage layers being placed above geosynthetic lined slopes. Unfortunately, a few long-term failures have occurred due to fines accumulated in the drainage layers at the toe of the slope. Thus buildup of seepage force can occur over time. This paper presents the requisite models and equations to analyze such seepage buildup. Two different seepage submergence ratio concepts are offered. An example problem and a parametric design clearly show the severity of the situation. Full submergence of a cover soil will effectively reduce the slope's factor-of-safety by 50%. Guidelines on submergence ratios from zero to fully saturated are offered. While the analysis of the situation is now available, the preferred design strategy is to avoid seepage forces altogether. To do so, toe drainage systems must be opened up significantly more than the current practice seems to indicate. Some recommended sketches are offered.
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Details
- Title
- Seepage induced slope instability
- Creators
- Te-Yang Soong - Drexel UniversityRobert M. Koerner - Drexel University
- Publication Details
- Geotextiles and geomembranes, v 14(7), pp 425-445
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1996VE80000008
- Scopus ID
- 2-s2.0-0030185762
- Other Identifier
- 991019167909304721
UN Sustainable Development Goals (SDGs)
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Engineering, Geological
- Geosciences, Multidisciplinary