@inproceedings{Schütz:2009,
author = {Schütz, R and Potts, DM and Zdravkovi, L},
pages = {49--60},
title = {A constitutive model for the behaviour of shotcrete},
year = {2009}
}

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TY  - CPAPER
AB  - A constitutive model for the behaviour of shotcrete is presented in this paper. It is formulated within the framework of elasto-plasticity and the smeared crack concept is applied. Two independent yield surfaces govern the mechanical behaviour under compression and tension, which is further controlled by non-linear hardening and softening. The main material parameters are assumed to change with time. Validation of the model has been achieved by fitting the increase in stiffness and strength to published data in the literature. Good agreement is found between predictions of the complete stress-strain curves of shotcrete at different ages and experimental results. The model represents a sophisticated tool for the realistic analysis of tunnels, which are driven according to the principles of the New Austrian Tunnelling Method (NATM).
AU  - Schütz,R
AU  - Potts,DM
AU  - Zdravkovi,L
EP  - 60
PY  - 2009///
SP  - 49
TI  - A constitutive model for the behaviour of shotcrete
ER  - 

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