## It is generally accepted that the pressures exerted by stored bulk solid on silo walls after filling are closely predicted by the Janssen theory. However, recent experimental observations of silo wall pressure have shown significant deviations from Janssen pressures even after careful symmetric
Prediction of static wall pressures in coal silos
β Scribed by J.Y. Ooi; J.F. Chen; R.A. Lohnes; J.M. Rotter
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 781 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0950-0618
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β¦ Synopsis
Coal silos have been among the most problematic with regard to flow and structural failures. This paper describes part of a project to improve understanding of the mechanical behaviour of coal and its effect on wall pressures and solids arching. The parameters for several constitutive models were derived from material tests on ground Shannon coal and used in finite element calculations of static wall pressures. The finite element predictions were compared with both existing classical theories and codified design methods.
π SIMILAR VOLUMES
This paper outlines the development and verification of a finite element model for the filling pressure distribution in a square planform silo with flexible walls. The flexibility of the walls has a marked effect on the pressures, so this is an example of significant granular solid-structure interac