网状加筋土挡土墙设计理论

Design Theory of the Grid Reinforced Earth Wall

采用室内大型模型试验及理论分析相结合的方法,提出了网状加筋土挡土墙墙背土压力的计算方法,确定了滑动破裂面的形状,并提出了网状加筋土容许抗拔力及其长度的确定方法,指出了网状加筋土挡土墙设计中所包括结构计算的内容及应注意的问题。研究表明,网状加筋土挡土墙比传统的条带式加筋土挡土墙的稳定性好得多,它适合于修筑高大及高等级公路的挡土墙。

Through tests integrated with analysis of the large model experiment about the reinforced wall, in this paper, the method for counting earth pressure on the wall＇s back is put forward, the shape of the rupture is determined, the method of determining the anti-pull force and the length of the grid reinforament is put forward, the content and points of attention in structural calculation of the net reinforced wall are clarified. And therefore, the designing theory of the net reinforcement is formed. The study shows that the grid reinforement earth wall＇s stability property is better than that of the strip reinforcement earth wall. The net one is suited for building the earth wall in great hight or in high-grade highways.