Assessment of the Local and Global Stability of the Luzzone Arch Dam Including Visualisation of the Data Analysis

Faham Tahmasebinia, Rowan Doskey, Omar Elrich, David Kelly, Samad Sepasgozar and Fernando Alonso Marroquin
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Faham Tahmasebinia: School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia
Rowan Doskey: School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia
Omar Elrich: School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia
David Kelly: School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia
Samad Sepasgozar: Faculty of Built Environment, The University of New South Wales, Sydney, NSW 2052, Australia
Fernando Alonso Marroquin: School of Civil Engineering, The University of Sydney, Sydney, NSW 2006, Australia

Sustainability, 2021, vol. 13, issue 7, 1-17

Abstract: This study investigates the local and global stability of the Luzzone Dam. Two finite element models were built; one with foundation rock, the other without. The purpose of this was to demonstrate a potential gulf between rigid connection modelling, and rock–structure interaction (RSI). Strand7 is not a traditional geotechnical finite element model (FEM) program, though performed well when modelling radial displacement on the Luzzone Dam. Generally, the percentage between a rigid base and RSI model displacement was 10%. This result was validated against previous numerical models on the structure. Static loads produced a radial displacement on the crown structure of 9.01 cm. Uneven stress distributions at the base of the structure were shown to be the most unpredictable result. With rigid base connections, these loads produced peak tensile stresses of 10.7 MPa. This was greater than its dynamic counterpart, asking questions about fully fixed restraints. It is noted that this is above yield and should be investigated further. Special attention will be devoted to determining the failure criteria in the simulated dams to suggest better practical guide lines for the practical engineers on site.

Keywords: finite element model; numerical analysis; spectral response; rock–structure interaction; Luzzone Dam (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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