Experimental determination of the pressures exerted by wheat stored in silos under different conditions of discharge

  1. A. Couto 1
  2. A. Ruiz 1
  3. A. Tascón 2
  4. L. Herráez 1
  5. P. Aguado 1
  1. 1 Universidad de León
    info

    Universidad de León

    León, España

    ROR https://ror.org/02tzt0b78

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Livre:
VII Congreso Ibérico de Agroingeniería y Ciencias Hortícolas: innovar y producir para el futuro. Libro de actas
  1. Ayuga Téllez, Francisco (coord.)
  2. Masaguer Rodríguez, Alberto (coord.)
  3. Mariscal Sancho, Ignacio (coord.)
  4. Villarroel Robinson, Morris (coord.)
  5. Ruiz-Altisent, Margarita (coord.)
  6. Riquelme Ballesteros, Fernando (coord.)
  7. Correa Hernando, Eva Cristina (coord.)

Éditorial: Fundación General de la Universidad Politécnica de Madrid

ISBN: 84-695-9055-3 978-84-695-9055-3

Année de publication: 2014

Pages: 507-512

Congreso: Congreso Ibérico de Agroingeniería y Ciencias Hortícolas (7. 2013. Madrid)

Type: Communication dans un congrès

Résumé

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.