Grid-rib reinforcement is a kind of horizontal-vertical (H-V) reinforcement. A series of plane strain tests of sand reinforced with grid-rib are carried out under different confining pressures. Studies are focused on the influence of holes’ sizes and kinds
various rib’s heights and different confining pressures. Based on the specimen failure situation
components of additional pressures are explained
including grid’s friction
pinching pressures of holes
rib point friction and rib’s lateral resistance. According to the strength theory of conventional reinforced soil
strength analysis of frictional failure of sand reinforced with grid-rib under plane-strain condition is conducted
and the results of analytical prediction are comparable with those from the plane-strain tests