论文部分内容阅读
本文通过筋土之间的拉拔摩擦试验研究,分析了四种筋材在同一填料以及一种筋材在三种不同填料中的筋土界面摩擦系数的变化情况,并分析了筋材摩阻强度的变化规律。试验结果表明:在同种填料中,土工网和土工格栅较土工布、土工带界面摩擦系数高;同种筋材在粗颗粒填料中界面摩擦系数较细颗粒填料中大。拉拔试验的剪切应力与剪切位移具有明显的非线性特征,在开始阶段剪切应力有明显的增加,然后达到峰值并趋于稳定;随着法向应力的增加,界面的剪切应力的峰值以及对应的拉拔位移量也相应的增加。研究结果可为今后加筋土的研究及应用提供一定的参考和借鉴。
In this paper, the friction and friction between reinforcement and soil were investigated through the friction and pull test between the soil and the reinforcement. The friction coefficient of the four reinforcements in the same filler and one reinforcement in three different fillers was analyzed. Strength of the law of change. The test results show that the friction coefficients of geonets and geogrids are higher than that of geotextiles and geotextiles in the same kind of fillers. The friction coefficient of the same kind of tendons in coarse particles is larger than that of fine particles. The shear stress and shear displacement of the pull-out test have obvious non-linear characteristics. The shear stress increases obviously in the initial stage and then reaches the peak value and tends to be stable. With the increase of the normal stress, the shear stress of the interface The peak and the corresponding displacement of the corresponding increase in displacement. The research results can provide reference and reference for the future research and application of reinforced earth.