Journal article
In-plane hydraulic properties of geotextiles
Geotechnical testing journal, v 6(4), pp 190-195
01 Dec 1983
Abstract
Because of the large number of practical applications using the in-plane hydraulic properties of bulky geotextiles, there exists a need for a suitable test method, which should eventually be standardized. The method developed here measures the parallel flow of water in a constant head device using relatively large rectangular specimens measuring 61.0 by 30.6 cm (24 by 12 in.) The device can support normal stresses on the geotextile up to approximately 144 kPa (3000 lb/ft (super 2) ). The basic parameter measured is transmissivity (the in-plane coefficient of permeability times the geotextile's thickness), which behaves as a strongly exponential decreasing function with increasing normal stress. A wide variety of needled nonwoven geotextiles were tested with transmissivity values ranging between 0.062 to 0.14 cm (super 3) /s/cm (0.004 and 0.009 ft (super 3) /min/ft) fabric. Tests on multiple layers of fabrics showed an increase in transmissivity roughly proportional to the thickness of the total number of layers.--Modified journal abstract.
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Details
- Title
- In-plane hydraulic properties of geotextiles
- Creators
- Robert M. Koerner - Drexel UniversityJohn A. Bove - Drexel University
- Publication Details
- Geotechnical testing journal, v 6(4), pp 190-195
- Publisher
- American Society for Testing and Materials
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Other Identifier
- 991020546577204721