This paper shows the results of the preliminary numerical analyses carried out for the project STILUS within the framework of the European funded network SERA (Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe). The aim of the project is to investigate the problem of tunnel-structure interaction in liquefiable soil through a series of centrifuge tests and to assess an effective mitigation technique. A preliminary numerical study was carried out in Plaxis 2D software. The soil was characterized by UBCSAND model imple- mented in the Plaxis code. The input parameters for the models are evaluated on the basis of laboratory element tests. Numerical analyses were also performed to evaluate the efficacy of drains as mitigation techniques. Drains were installed in the models, in order to analyse their ef- fectiveness in reducing the pore pressure build up and then the tunnel uplift and building move- ments as a function of their spacing, length and position.

A numerical study on tunnel-building interaction in liquefiable soil / Maddaluno, L.; Stanzione, C.; Nappa, V.; Bilotta, E.. - (2019). (Intervento presentato al convegno 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy tenutosi a Roma (Italy) nel 17-20 June 2019).

A numerical study on tunnel-building interaction in liquefiable soil

V. Nappa;E. Bilotta
2019

Abstract

This paper shows the results of the preliminary numerical analyses carried out for the project STILUS within the framework of the European funded network SERA (Seismology and Earthquake Engineering Research Infrastructure Alliance for Europe). The aim of the project is to investigate the problem of tunnel-structure interaction in liquefiable soil through a series of centrifuge tests and to assess an effective mitigation technique. A preliminary numerical study was carried out in Plaxis 2D software. The soil was characterized by UBCSAND model imple- mented in the Plaxis code. The input parameters for the models are evaluated on the basis of laboratory element tests. Numerical analyses were also performed to evaluate the efficacy of drains as mitigation techniques. Drains were installed in the models, in order to analyse their ef- fectiveness in reducing the pore pressure build up and then the tunnel uplift and building move- ments as a function of their spacing, length and position.
2019
A numerical study on tunnel-building interaction in liquefiable soil / Maddaluno, L.; Stanzione, C.; Nappa, V.; Bilotta, E.. - (2019). (Intervento presentato al convegno 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy tenutosi a Roma (Italy) nel 17-20 June 2019).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/776788
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