<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Stress-strain mechanical properties of polystyrene foam plastic material were tested under different loading conditions. An empirical constitutive model for describing metal materials was proposed for the polystyrene plastic foam. The static and dynamic tests results show that the ductility and watertightness of the polystyrene plastic foam are significantly improved. At the same time, in order to check its seismic-isolation property, the high-performance foam concrete as filling materials of Galongla tunnel in Tibet was simulated by FEM. The simulated results show that the polystyrene plastic foam can remarkably decrease the stress and the plastic zone in final lining, so it can effectively reduce the seismic damage of the tunnel. Considering the seismic-isolation property and low price of polystyrene plastic foam, it is a good reference for the anti-seismic design of tunnels in high intensity zones.</p></abstract>

Stress-strain mechanical properties of polystyrene foam plastic material were tested under different loading conditions. An empirical constitutive model for describing metal materials was proposed for the polystyrene plastic foam. The static and dynamic tests results show that the ductility and watertightness of the polystyrene plastic foam are significantly improved. At the same time, in order to check its seismic-isolation property, the high-performance foam concrete as filling materials of Galongla tunnel in Tibet was simulated by FEM. The simulated results show that the polystyrene plastic foam can remarkably decrease the stress and the plastic zone in final lining, so it can effectively reduce the seismic damage of the tunnel. Considering the seismic-isolation property and low price of polystyrene plastic foam, it is a good reference for the anti-seismic design of tunnels in high intensity zones.

Numerical test on polystyrene tunnel seismic-isolation material

Shandong University at Weihai, Weihai 264209,

Chinese Academy of Sciences, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Wuhan 430071,

China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063,

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Numerical test on polystyrene tunnel seismic-isolation material"}

Stress-strain mechanical properties of polystyrene foam plastic material were tested under different loading conditions. An empirical constitutive model for...

Numerical test on polystyrene tunnel seismic-isolation material

Pubblicato online: 13 ott 2016

Pagine: 122 - 127

DOI: https://doi.org/10.1515/pjct-2016-0058

Parole chiave
polystyrene plastic foam, constitutive model, high intensity, tunnel, seismic-isolation layer

© by Jianping He

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Numerical test on polystyrene tunnel seismic-isolation material

Pubblicato online: 13 ott 2016

Pagine: 122 - 127

DOI: https://doi.org/10.1515/pjct-2016-0058

Parole chiavepolystyrene plastic foam, constitutive model, high intensity, tunnel, seismic-isolation layer

© by Jianping He

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Parole chiave
polystyrene plastic foam, constitutive model, high intensity, tunnel, seismic-isolation layer