Determination of Sand / Geotextile Interface Shear Strength by Direct Shear Tests
Makaleler > Tam Makale · 2008
Yazarlar: ERDOÄžAN, Devrim, ALTUN, Selim
Selcuk University Journal of Engineering, Science and Technology; Vol 23, No 2 (2008): Journal of The Engineering and Architecture Faculty of Selcuk University; 1-12, Uluslararası, 2008
Özet
Recently, in geotechnical engineering field, applications of geosynthetics are getting rather more common. Geosynthetics are capable of overcoming a number of problems including seperation, filtration, drainage, reinforcement; which multiple functions can be fulfilled once at a time. Particularly, application of a type of geosynthetics, namely, geotextiles, which are possessing rather high tensile strength, lead to increase in the shear strength of soil, hence, soils strengthened with geosythetics are named as reinforced soil. In particular, many studies in the literature are related with the investigation of the rate of increase in soil strength by application of geosynthetic materials, which are used for increasing the stability and reinforcing the subgrade material in highway construction. In the scope of this study, the effect of geotextile type on the rate of increase in stability of sandy soils, is investigated under static loading conditions. Shear box tests on specimens prepared by inclusion of geotextiles of different types and properties, were carried out to assess the rate of variation in sand shear strength properties. It was observed that geotextile type, grain size distribution, relative density of sand and the test parameters cause drastic variations in the sand / geotextile interface shear strength behaviour.