Abstract
ABSTRACT: Thermo-active geo-structures e.g. gas-/oil-pipelines, high-voltage cables, energy-piles, nuclear waste disposals are exposed to temperature changes. These alterations have a significant effect to the behaviour of soil-structure interfaces.
The model is an adaption of the thermo-mechanical hypoplastic model from Masv'ın & Khalili (2011) and Masv'ın & Khalili (2012). The reformulation is done by redefined tensorial definitions for the special case of soil- structure interfaces.
The new thermo-mechanical interface model is used for the modelling of soil-structure interface under varying temperature. By applying different temperatures and conducting a parameter study it is be proven that the model can be used for modelling various thermo-mechanical loading paths.
After the simulations of some selected stress and temperature paths the paper discusses the benefits and advantages by using an advanced model for soil-structure interfaces considering temperature effects