Experimental Investigation of Hydro-Mechanical Soil Properties of a Slope Failure

A sudden slope failure occurred in Manisa possibly due to the effect of water infiltration because a slightly damaged sewage pipe. Considering that there was no other evidence such as rainfall or any loading conditions trigger failure, laboratory investigation on soil’s unsaturated hydro-mechanical properties initiated. Slopes are naturally soils, and they may lose their stability with increased saturation degrees infiltration. Thus, for proper investigation, soils should be determined. The results presented this study focused determining key parameters evaluate soil conditions. In regard, hydraulic conductivity suction characteristics shear strength were determined well classical geotechnical soil. Classification silty sand which is known have slight moderate stresses mostly affected suddenly by flexible-wall permeability test run falling head procedure saturated sample measured 1x10-7 m/s. Suction detected filter paper method, besides, retention curve constructed. maximum matric 2887 kPa an air-dried sample. Following, conventional direct both dry soaked Finally, friction angle calculated 1.7 from parameters.