International Journal of Applied Research
Vol. 1, Issue 13, Part E (2015)
Geosynthetics for soil reinforcement -numerical analysis on the effects of prestressing geosynthetics to enhance their reinforcement effect
This article introduces geosynthetic materials and briefly describes their types and manufacture, functions and applications, properties and tests, design, selection, and specifications. Geosynthetics for soil reinforcement are then discussed in some detail, with specific applications to embankments on soft foundations, steep slopes, and for the backfills of retaining walls and abutments. Emphasis is on the materials properties of the geosynthetics required for design and construction.
Failures of road embankments on discontinuous permafrost commonly occur during thawing of the foundation soil. As an approximation, weak zones created by thawing of discontinuous permafrost can be considered as ‘voids’ within the foundation. Geosynthetic reinforcements have been used to bridge these ‘voids’ and provide support to the embankment fill. This paper presents results of a numerical investigation on the effects of prestressing geosynthetics to enhance their reinforcement effect, and thus reduce deformations of embankments over discontinuous permafrost. The study used the commercially available computer program, FLAC. Numerical analysis illustrates that prestressing geosynthetic reinforcement can be effective in controlling deformations and reducing the possibility of collapse of road embankments on degrading discontinuous permafrost.
How to cite this article:
Kapil Ohri, Dr. Pradeep Kumar. Geosynthetics for soil reinforcement -numerical analysis on the effects of prestressing geosynthetics to enhance their reinforcement effect. Int J Appl Res 2015;1(13):329-335.