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加筋土挡墙的破坏形式一般为拉断破坏和粘着破坏两种形式。该文通过对粘着破坏形式下的加筋土强度理论的探讨,应用准粘聚力理论和库仑理论,提出了粘着破坏形式下的加筋土挡墙墙背土压力计算公式。研究结果表明:粘着破坏下的加筋土内摩擦角具有了增量;加筋土挡墙墙背侧向土压力比经典土压力和变系数法都小;加筋土挡墙侧向土压力都随拉筋垂直间距增加而增加;粘着破坏法计算得到的加筋土挡墙侧向土压力比实测值大。
Reinforced earth retaining wall damage form is generally pulled off damage and adhesion damage in two forms. Based on the theory of reinforced soil strength in the form of adhesion failure, the paper calculates the back soil pressure formula of reinforced earth retaining wall under the form of adhesion damage by using the theory of quasi-cohesion and Coulomb theory. The results show that the internal friction angle of the reinforced soil under adhesion failure has an increment; the earth pressure on the backside of the reinforced earth retaining wall is smaller than that of the classical earth pressure and the variable coefficient method; the lateral earth pressure of the reinforced earth retaining wall All increase with the increase of the vertical spacing of the tie bars. The lateral earth pressure of the reinforced earth retaining wall calculated by the stick failure method is larger than the measured value.