网状及条带式加筋拉拔特性的试验研究

在试验的基础上，分析了网状加筋与填土的相互作用机理及其抗拔力的组成，并按筋网与土体之间相对位移的大小，将抗拔过程划分为初始阶段、发展阶段和破坏阶段；得出了网状加筋抗拔力比条带式加筋抗拔力大得多的结论；提出了网状加筋抗拔力的计算公式，对条带式加筋进行抗拔力计算时，应考虑水平和垂直两个方向的“群筋效应系数”，加筋土支挡结构的抗拔力计算，宜采用拉拔似摩擦系数．

The experimental study on the anti-pull property of the neeted and striped reinforcement

On the basis of the testing ,the mechanism for interaction between the netted reinforcement and the fill as well as the consist of the anti pull force have been analyzed, and according to the size of relative displacement between the netted reinforcement and the soil mass, the initial period, developing period and destroyed period have been classified.The conclusion that the anti pull force of the netted reinforecment is much greater than that of the striped reinforcement has been obtained; the formulas for counting the anti pull force of the netted reinforcement have been put forward, and for counting the striped reinforcement's ,the efficiency factors of the reinforcement groups for both the horizental and the veritical have also been considered.The similar friction coefficient should be used in counting the anti pull force of the reinforced earth structure.