000013342 001__ 13342
000013342 005__ 20161114160337.0
000013342 04107 $$aeng
000013342 046__ $$k2009-06-22
000013342 100__ $$aMaranha J., R.
000013342 24500 $$aInteraction of a lined tunnel with the surrounding non-linear ground due to a vertical shear wave

000013342 24630 $$n2.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013342 260__ $$bNational Technical University of Athens, 2009
000013342 506__ $$arestricted
000013342 520__ $$2eng$$aWhen analysing the effects of seismic actions on lined tunnels, a non-linear soil model able to reproduce the main features of cyclic behaviour, such as damping and pore pressure generation, should be used. In this work, a horizontal shear wave propagating upwards corresponding to a constant amplitude spectral acceleration in a bandwidth limited frequency domain interacts with a lined tunnel, excavated in saturated overconsolidated hard clay. Initial values of the model’s internal variables consistent with an overconsolidated initial stress field including the tunnel’s construction effect are considered. Different amplitudes of the input signal are applied. Both a bounding surface “bubble” model, proposed by Kavvadas and Belokas [1] for structured overconsolidated soils with anisotropy, and a hysteretic model included in the software FLAC are used for the soil.

000013342 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013342 653__ $$aEarthquake Engineering, Soil Mechanics, Tunneling. Abstract. When analysing the effects of seismic actions on lined tunnels, a non-linear soil model able to reproduce the main features of cyclic behaviour, such as damping and pore pressure generation, should be used. In this work, a horizontal shear wave propagating upwards corresponding to a constant amplitude spectral acceleration in a bandwidth limited frequency domain interacts with a lined tunnel, excavated in saturated overconsolidated hard clay. Initial values of the model’s internal variables consistent with an overconsolidated initial stress field including the tunnel’s construction effect are considered. Different amplitudes of the input signal are applied. Both a bounding surface “bubble” model, proposed by Kavvadas and Belokas [1] for structured overconsolidated soils with anisotropy, and a hysteretic model included in the software FLAC are used for the soil.

000013342 7112_ $$aCOMPDYN 2009 - 2nd International Thematic Conference$$cIsland of Rhodes (GR)$$d2009-06-22 / 2009-06-24$$gCOMPDYN2009
000013342 720__ $$aMaranha J., R.$$iVieira, A.
000013342 8560_ $$ffischerc@itam.cas.cz
000013342 8564_ $$s482060$$uhttps://invenio.itam.cas.cz/record/13342/files/CD505.pdf$$yOriginal version of the author's contribution as presented on CD, section: Computational methods in geotechnical earthquake engineering - ii.
000013342 962__ $$r13074
000013342 980__ $$aPAPER