Friction of Granular Soil Along an Interface

颗粒土沿界面的摩擦

• 批准号: 9020526
• 负责人: Samuel Paikowsky
• 金额: --
• 依托单位: University of Massachusetts Lowell Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9020526&HistoricalAwards=false
• 关键词: Friction; Granular; Soil; Along; Interface

The project aims at the study of the friction mechanism of particles along an interface with a solid body by conducting theoretical and experimental work. The theoretical work is based on a mechanical (S.G.-Sphere-in- the-Groove) model of a single particle . The experimental work entails building two testing apparatuses. One will utilize photoelastic ideal particles to study the interparticle and interface/particle contacts. The other apparatus will study the friction between ideal particles and natural sands along interfaces of controlled roughness. The experimental and theoretical work will then be incorporated to predict friction coefficient of granular soil .

本项目旨在通过理论和实验研究颗粒沿固体界面的摩擦机理。理论工作是基于单个粒子的机械模型（s.g.s osphere -in- The - groove）。这项实验工作需要建造两台测试仪器。一个将利用光弹性理想粒子来研究粒子间和界面/粒子接触。另一种装置将研究理想颗粒和天然砂之间沿控制粗糙度界面的摩擦。然后将实验和理论工作结合起来预测颗粒土的摩擦系数。