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首页> 外文会议>International Symposium on Earth Reinforcement Nov 14-16, 2001, Fukuoka/Kyushu/Japan >Interface friction coefficient of extensible reinforcement and its influence on designing of retaining structures
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Interface friction coefficient of extensible reinforcement and its influence on designing of retaining structures

机译：可伸缩钢筋的界面摩擦系数及其对挡土结构设计的影响

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摘要

The interface friction coefficient is the basic factor influencing the frictional resistance of reinforcement and as a result the internal stability of an earth structure. Field and laboratory investigations on interface friction coefficient between materials of extensible reinforcement (geotextiles, flexible straps) and fills (industrial wastes) were carried out. Two methods were used to determine interface friction coefficient i.e. shear box test and pull-out test. The test results obtained from both methods demonstrated that values of interface friction strongly depend on vertical stress (with its increase are diminishing) and derived from shear box test were greater than those obtained from pull-out test. Detailed calculation procedures for designing two experimental retaining structures using geotextiles and flexible straps are given and results of calculations are presented. Strong dependence of reinforcement length on values of friction coefficient was evidently revealed.
机译：界面摩擦系数是影响钢筋的摩擦阻力的基本因素，因此是土结构的内部稳定性。现场和实验室研究了可延展增强材料（土工布，柔性带）和填料（工业废料）之间的界面摩擦系数。两种方法用于确定界面摩擦系数，即剪切盒试验和拉拔试验。从这两种方法获得的测试结果表明，界面摩擦力的值在很大程度上取决于垂直应力（随着应力的增加而减小），并且剪切盒试验得出的结果要大于拉拔试验得出的结果。给出了使用土工布和柔性带设计两个实验性挡土结构的详细计算程序，并给出了计算结果。显然显示出增强长度对摩擦系数值的强烈依赖性。

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