Seismic response of large underground structures in liquefiable soils subjected to horizontal and vertical earthquake excitations

Liu, Huitao; Song, Erxiang

doi:10.1016/j.compgeo.2005.02.002

Cited by 128 publications

(50 citation statements)

References 24 publications

(37 reference statements)

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“…The experimental studies mainly include forced vibration tests, earthquake simulator tests and centrifugal shaking table tests [4]. Comparatively, centrifugal modeling could capture the real stress field of the soil and produce more authentic and reliable results [5]. Wong et al [6] demonstrated the importance of considering the effect of pipeline motion in modifying the free field ground motion into the pipeline analysis using the FEM (finite element method) method.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Seismic-induced Soil Response Around Submarine Pipeline

Zhang

Jeng²

2012

TOCIEJ

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Seismic-induced pore pressure and effective stresses in the saturated porous seabed under seismic loading are the main factors that govern the overall stability of submarine pipelines. In most of the previous investigations for the seismic-induced dynamic response around a submarine pipeline have been limited to two-dimension cases. In this paper, a three-dimensional finite element model including buried pipeline is established by extending DYNE3WAC. Based on the numerical model presented, the effects of pipeline geometry and soil characteristics on the seismic-induced pore pressure of the seabed and internal stresses of submarine pipeline will be discussed in detail.

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Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Seismic-induced Soil Response Around Submarine Pipeline

Zhang

Jeng²

2012

TOCIEJ

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“…As a matter of fact, the excessive uplift flotation of the underground lightweight structures would cause larger shear deformation of surrounding soil, which may occasionally cause the decrease in pore pressure. Under larger shear deformation, normal sand tends to dilate, which shall lead to the lowering of pore pressure (Liu and Song 2005), that is to say, the cyclic mobility. Figure 9 shows the comparison of acceleration responses at the ground surface.…”

Section: Liquefaction Induced Damage To Underground Rc Ductsmentioning

confidence: 99%

“…As the seismic analysis of the soil-structure system requires an initial stress field of the static equilibrium before dynamic earthquake loads (Liu and Song 2005;Maekawa et al 2003), the static analysis of drained foundation was firstly performed. In general, reproduced static soil stress fields might depend on the process of construction works.…”

Section: Analysis Proceduresmentioning

confidence: 99%

Nonlinear Seismic Response and Damage of Reinforced Concrete Ducts in Liquefiable Soils

Okhovat

Feng

Maekawa

2009

ACT

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Highly inelastic nonlinear interaction of liquefied soil and underground RC ducts is computationally investigated in view of the structural damage. The required ductility is expected to be insensitive to the risk of liquefaction for normally deposited layers of soil, and the lesser ductility is acceptable for the case of highly liquefiable foundation similar to the seismic isolation. Although the structural nonlinearity has a fewer effect on the uplift of the underground ducts, the amount of main reinforcement may control the structural damage with the same efficiency for both drained and undrained soil deposits.

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“…It is obvious that the safety of mountain tunnels in seismically active areas is still an important issue to tunnel engineers. The studies relating to tunnels under the seismic effects are performed by various researchers in recent years (Kirzhner and Rosenhouse, 2000;Karakostas and Manolis, 2002;Gazetas et al, 2005;Hashash et al, 2005;Liu and Song, 2005;Pakbaz and Yareevand, 2005;Kouretzis et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Deconvolution effect of near-fault earthquake ground motions on stochastic dynamic response of tunnel-soil deposit interaction systems

Hacıefendioğlu

2012

Nat. Hazards Earth Syst. Sci.

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Abstract. The deconvolution effect of the near-fault earthquake ground motions on the stochastic dynamic response of tunnel-soil deposit interaction systems are investigated by using the finite element method. Two different earthquake input mechanisms are used to consider the deconvolution effects in the analyses: the standard rigid-base input and the deconvolved-base-rock input model. The Bolu tunnel in Turkey is chosen as a numerical example. As near-fault ground motions, 1999 Kocaeli earthquake ground motion is selected. The interface finite elements are used between tunnel and soil deposit. The mean of maximum values of quasistatic, dynamic and total responses obtained from the two input models are compared with each other.

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Seismic response of large underground structures in liquefiable soils subjected to horizontal and vertical earthquake excitations

Cited by 128 publications

References 24 publications

Numerical Modeling of Seismic-induced Soil Response Around Submarine Pipeline

Numerical Modeling of Seismic-induced Soil Response Around Submarine Pipeline

Nonlinear Seismic Response and Damage of Reinforced Concrete Ducts in Liquefiable Soils

Deconvolution effect of near-fault earthquake ground motions on stochastic dynamic response of tunnel-soil deposit interaction systems

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