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首页> 外文会议>6th International Conference on Bulk Materials Storage, Handling and Transportation, Sep 28-30, 1998, University of Wollongong NSW >Effect of Non-uniform Wall Friction on Filling Pressures in Silos
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Effect of Non-uniform Wall Friction on Filling Pressures in Silos

机译：壁面不均匀摩擦对筒仓充填压力的影响

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摘要

The structural design of silos is much influenced by the wall pressures which occur, and any source of increased wall pressures can be important. One of the factors causing departures of the pressure distribution from the Janssen reference line is variations in the wall friction coefficient. This paper examines the effect of local variations in wall friction under both symmetric and unsymmetrical conditions and gives an insight into its effects. It is shown that locally reduced wall friction can give rise to significantly increased pressures, but that the magnitude of these pressures is sensitive to the geometry of the silo and the vertical extent of the polished zone. The most important implications are for tall silos with local polished /ones causing unsymmetrical pressures.
机译：筒仓的结构设计在很大程度上受到壁压力的影响，任何增加壁压力的来源都可能很重要。导致压力分布偏离Janssen参考线的因素之一是壁摩擦系数的变化。本文研究了对称和不对称条件下壁面摩擦局部变化的影响，并对其影响进行了深入研究。结果表明，局部减小的壁摩擦会导致压力显着增加，但是这些压力的大小对料仓的几何形状和抛光区的垂直范围很敏感。最重要的含义是局部抛光的高筒仓会导致压力不对称。

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