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Interface Behavior of Sands from Constant Normal Stiffness Direct Shear Tests

机译:恒定法向刚度直接剪切试验得出砂的界面行为

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摘要

This paper reports an experimental study concerning the frictional behavior of sand-solid structure interfaces. The study was performed using a constant normal stiffness (CNS) direct shear box. Three natural silica sands and four aluminium plates with different roughnesses were investigated. A comparison between constant normal load (CNL) and CNS tests is reported. The influence of the main factors controlling the friclional behavior of the investigated materials such as constant normal stiffness, roughness of solid surface, particle size, and relative density, and initial effective normal stress are analyzed and discussed.
机译:本文报道了一项有关砂-固结构界面摩擦行为的实验研究。该研究使用恒定法向刚度(CNS)直接剪切箱进行。研究了三种天然硅砂和四种粗糙度不同的铝板。报告了恒定法向载荷(CNL)和CNS测试之间的比较。分析和讨论了控制所研究材料的摩擦行为的主要因素,例如恒定法向刚度,固体表面粗糙度,粒度和相对密度以及初始有效法向应力。

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