An Approach for Calculation of Bulk-solid Pressures in Squat Silos

YUAN Fang; WANG Fuming; GAO Xinnan

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An Approach for Calculation of Bulk-solid Pressures in Squat Silos

机译：An Approach for Calculation of Bulk-solid Pressures in Squat Silos

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摘要

Various approaches were proposed to calculate the lateral pressure of squat silos. The most popular are Rankine and Coulomb earth pressure theories which are based on the consideration that the soil behind the retaining wall is two-dimensional plane. Hence these methods may not be suitable for a silo wall whose projection is circular on the plane. Furthermore, it is almost acceptable that the wall pressures vary linearly with depth in the two theories above. Nonetheless, the bulk-solid pressure may not distribute linearly with depth because a bulk-solid behaves very differently from a fluid. In this paper, an actual pressure distribution and calculation methods are studied. Based on the limit equivalent theory, a lateral pressure distributed nonlinearly is developed through accurate math derivation. The results are in good agreement with that of the full-sized silo experiment, whether the top of the stored bulk material is a horizontal plane or a conical pile, while Rankine's formula and Coulomb's formula are not accurate for the cases.

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来源
《Key engineering materials》 |2004年第2期|1059-1064|共6页
作者
YUAN Fang; WANG Fuming; GAO Xinnan;
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作者单位

School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, P. R. China;

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原文格式 PDF
正文语种英语
中图分类工程基础科学;
关键词
curve wall; squat silo; bulk-solid; lateral pressure distribution; plane of rupture;

An Approach for Calculation of Bulk-solid Pressures in Squat Silos

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