Experimental determination of the pressures exerted by wheat stored in silos under different conditions of discharge
- A. Couto 1
- A. Ruiz 1
- A. Tascón 2
- L. Herráez 1
- P. Aguado 1
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1
Universidad de León
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2
Universidad de La Rioja
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- Ayuga Téllez, Francisco (coord.)
- Masaguer Rodríguez, Alberto (coord.)
- Mariscal Sancho, Ignacio (coord.)
- Villarroel Robinson, Morris (coord.)
- Ruiz-Altisent, Margarita (coord.)
- Riquelme Ballesteros, Fernando (coord.)
- Correa Hernando, Eva Cristina (coord.)
Publisher: Fundación General de la Universidad Politécnica de Madrid
ISBN: 84-695-9055-3, 978-84-695-9055-3
Year of publication: 2014
Pages: 507-512
Congress: Congreso Ibérico de Agroingeniería y Ciencias Hortícolas (7. 2013. Madrid)
Type: Conference paper
Abstract
In this article, we report the results and conclusions of studies conducted using a mid- size test station for assaying pressures in silos. Assays were conducted with wheat, obtaining results for pressures during loading, in static state and during discharge. In addition, different flow rates (kg/s) of the granular material were tested during discharge. The results obtained were compared with Eurocode 1, Part 4. The results obtained indicate that in static state, the pressures inside the silo are not constant, and that varying the flow rate during discharge does not entail an associated variation in pressures. They also show that the state of overpressure during discharge is mainly due to an increment in the unit weight of the material in certain areas of the silo and, to a much lesser extent, to dilatancy. Furthermore, the pressure values obtained during discharge were higher than those obtained using the calculation method proposed in Eurocode 1, part 4.