中文摘要：

在水平-竖向（H-V）加筋土挡墙室内模型试验的基础上,采用基于离散元理论的颗粒流软件（PFC）对试验进行了仿真模拟.就PFC模拟得出的挡墙变形和竖筋侧应力等数据,与模型试验结果进行了比较和验证.同时,结合挡墙内部土颗粒位移和应力矢量图研究了H-V土加筋挡墙的作用机理及破裂面形式.

英文摘要：

Soil reinforced with horizontal-vertical（H-V） is a new concept of reinforced soil.A series of laboratory model tests of soil retaining wall reinforced with H-V inclusions were investigated and the particle flow code（PFC）,based on the discrete element method（DEM）,was used to simulate the model tests.The facing displacements and lateral earth pressures acted on vertical elements from PFC numerical simulations were compared with the results of model tests.Meanwhile,the mechanism and failure surface of soil retaining wall reinforced with H-V inclusions were investigated by the displacement and stress field of PFC ball units.