格栅加筋土挡墙数值分析的复合材料方法

格栅加筋土挡墙由面板、格栅和填土组成，其结构特性一直是工程界关注的焦点。基于自洽理论和应变相容观点建立筋土复合材料力学模型，用来模拟格栅及其周围一定厚度的土体，依此对一台阶式格栅加筋土挡墙的结构特性进行有限元分析，并与大尺度模型试验测试结果进行比较。研究表明，该方法计算结果和模型试验测试结果在趋势上和数值上都表现出较好的一致性。

COMPOSITE MATERIAL METHOD FOR NUMERICAL ANALYSIS OF GEOGRID REINFORCED SOIL RETAINING WALL

Geogrid,reinforced soil retaining wall is composed of panel, geogrid and soil. Its structural characteristics are emphasized in practice at all times. Based on the self-consistent theory and concept of strain consistency, a mechanical model for soil-reinforced composite material is put forward to simulate the grogrid and soil around grogrid with a definite thickness. The structural characteristics of stepped geogrid reinforced soil retaining wall are hereby numerically analyzed with finite element method. Compared with model experiment, it can be seen that the results calculated by the present method are commendably consistent with those obtained by model experiment.