كليدواژه :
Scale effect , Fiber reinforcement , soil improvement , Direct Shear Test , Finite Element Method , Shear strength , Clayey soil
چكيده لاتين :
Soil reinforcement has been introduce into the field of geotechnical engineering for many years in order to improve the properties of ground soil in specific engineering projects .the concept and principle of soil reinforcement was first develop by Vidal[1]. He demonstrate that the introduction of reinforcement elements in soil mass increase the shear resistance of the medium. Recently, randomly distributed fiber-reinforced soil has attracted increasing attention in many geotechnical engineering applications. Stabilized and reinforced soils are, in general, composite materials that result from combination and optimization of the properties of individual constituent material. A known approach in this area is the use of fiber-shaped waste materials in the composite (Basha et al[2], Consoli et al[3]).Materials used to make fibers reinforcement may be derived from paper, metal, nylon, polyester and other materials having widely varied physical properties. The natural fibers have tried in the field of soil reinforcement (Mandal and Murti[4]) due to their affordable cost, strength, friendly environmental nature and bulk availability . There have been many experimental researchers on the reinforcement of soils with randomly distributed natural and synthetic fiber materials (Hoare[5], Hoover et al[6], Gray and Ohashi[7], Setty and Rao[8],Maher[9], Gray and Maher[10] , Charan[11] , Atom and Al−Sharif[12] , Makiuchi and Minegishi[13] , Kaniraj and Havanagi[14], Santoni et al[15] , Cetin et al[16] ).These previous studies indicate that stress-strain-strength properties of randomly distributed fiber-reinforced soils are a function.
