Reduction of Collapse Intensity of Reinforced Sandy Slopes via Selection of Proper Reinforcement Material in Cyclic Loading by Work Method

This paper is an experimental study that considers short time seismic stability of reinforced sandy slopes by different materials. A handy shaking table is used to simulate cyclic loading. Slopes were reinforced by 4 different materials. Materials of reinforcement were carpet excelsior, gunny, carpet and geotextile. To study the effects of moisture, 3 different values were used and to study angle of slopes, 2 different angels were defined. The height of slopes was 40 cm and the range of variations of maximum recorded acceleration at base of slopes was 0.1g to 0.15g.The fundamental aims of this research were (1) Selection of the most proper material for short time seismic stability of slopes and (2) Comparison of the efficiency of 2 different types of reinforcement (plane elements, gunny, carpet and geotextile) and (mixed system, carpet excelsior). The results of the tests show that carpet and gunny have a good effect on short time seismic stability of slopes. So plane elements in comparison with carpet excelsior reduce the surface of failure of slopes.