...% and sheared under a normal stress ranging from 100 kPa to 300 kPa. The effects of fiber type, content and normal stress on shear strength and the dilatancy behavior were examined. The friction state theory was employed to interpret the influence of fiber reinforcement on the dilatancy behavior. The results...

...N.H. Giang; J. Kuwano; J. Izawa; S. Tachibana ABSTRACT: This study presents an evaluation of soil–geogrid interaction mechanisms. Pullout tests were carried out on different types of geogrid to evaluate the effects of transverse ribs and dilatancy characteristics of sand around the geogrid during...

... by examining the influence of three-dimensional constrained dilatancy on the pullout resistance factor for a two-dimensional design equation. An analytical model was developed for predicting the variation of pullout resistance factor with overburden stress. The validity of the prediction model at overburden...

..., as defined by the ratio of the average failure shear stress to average normal stress, increased with a reduction in the overburden stress. This increase was observed to be more significant for the soil with a high dilatancy. The difference in the friction factor between the Grade 20 and 30 straps was slight...