Qiangqiang Sun
University of Grenoble
11 Papers
Qiangqiang Sun is an academic researcher from University of Grenoble. The author has contributed to research in topics: Seismic loading & Seismic analysis. The author has an hindex of 5, co-authored 11 publications. Previous affiliations of Qiangqiang Sun include Hebei University.
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Papers
Soft soil layer-tunnel interaction under seismic loading
TL;DR: In this article, the authors investigate the seismic behavior of tunnels when they intersect with a soft soil layer and find that the presence of a soft layer generally increases the internal forces and deformations.
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Numerical study on the effect of a subway station on the surface ground motion
TL;DR: In this article, the impact of a subway station on the surface ground motion subjected to vertically propagating seismic wave is investigated, and a series of two-dimensional, viscoelastic and equivalent linear numerical analyses accounting for various station dimensions and shear wave velocities are performed.
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Impact of an underlying soft soil layer on tunnel lining in seismic conditions
TL;DR: In this paper, the effect of an underlying soft soil layer on the seismic behavior of tunnels is investigated. And the authors highlight the possible beneficial effects on the site seismic response and tunnel seismic behavior due to the presence of the soft-soil layer.
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Bearing capacity evaluation for shallow foundations on unsaturated soils using discretization technique
TL;DR: In this article, the bearing capacity of shallow foundations on unsaturated soils is evaluated by discretization technique of limit analysis, and the results obtained by the present technique are compared with the ones obtained from different authors.
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Significance of Rayleigh damping in nonlinear numerical seismic analysis of tunnels
TL;DR: In this paper, the impact of the Rayleigh formulation on the nonlinear seismic behavior of tunnels combined with the Mohr-Coulomb failure criterion is investigated through a two-dimensional finite difference code.
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