Özet:

In this study, it has been tried to detect how is the effect of a webless geotextile material on both the internal friction angle on clayey and arenaceous gliding surfaces and on cohesion. In accordance with this goal, shear box experiments have been done on materials obtained by either pure sand or pure clay or sand-clay mixtures with certain proportions. Experiments have been conducted 60x60 mm shear box by increasing or decreasing the proportion by 10%. The material is in a fully water saturated condition. Firstly, shear box tests have been conducted on the material mixed with certain proportions under three different normal stress and the internal friction coefficient and cohesion of the material have been detected. Afterwards, shear box tests have been repeated under the same normal stress by spreading 60x60 mm geotextile material in between the two boxes and then the internal friction coefficient and cohesion of the material have been detected. According to the experiment results completed, geotextile has been detected to increase the internal friction angle and, as a result, positively affected the gliding stress of the surface.

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