Abstract
The shear strength of fill material depends on compaction condition or strain, and the tensile strength of geosynthetics depends on temperature or strain rate. It is difficult to determine uniquely design parameters for fill material or geosynthetics. Geosynthetics reinforced soil wall is a kind of hybrid structure. Hybrid structure has generally some collapse mechanisms. In design of reinforced embankment, uncertainty of design parameters and safety to every predictable collapse mechanism should be evaluated. In reliability analysis, safety of structure is estimated with considering uncertainty of design parameters and every predictable collapse mechanism. This analysis may be a useful tool to determine partial factor in limit state design. Therefore, it is necessary to establish reliability analysis method for reinforced embankment. In this paper, basic concept of reliability analysis method is proposed for reinforced soil wall with geogrid, and the effect of calculation method is examined.
