Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Research on Earthquake and Wave Simultaneously Induced Pore Pressure in Seabed
Ocean engineering structures are frequently suffered from wave excitations. FLAC3d is employed to analyze the free-field seismic effect of seabed under wave excitations. The dynamic response of seabed under earthquake and wave simultaneous excitation is analyzed, and the development of excess pore-pressure is also discussed. The results indicate that the dynamic interaction of wave-seabed model is able to reflect the regular pattern of excess pore-pressure development; the excess pore-pressure development rules in seabed induced by earthquake and wave simultaneous excitation is quite different from those induced only by earthquake excitations. The excess pore-pressure grows due to accumulating effect and obvious oscillation characteristic, which results in large pore-pressure difference along the horizontal direction; besides, the amplitude of excess pore-pressure is magnified in the shallow depth of the seabed, yet rapidly attenuating along the depth. This special development pattern of excess pore-pressure may have significant influence on the ocean engineering structures such as submarine pipeline and immersed tunnel segment. Thus, the effect of wave excitations should be considered in the seismic response analysis and the safety evaluation of ocean engineering structures.
Research on Earthquake and Wave Simultaneously Induced Pore Pressure in Seabed
Ocean engineering structures are frequently suffered from wave excitations. FLAC3d is employed to analyze the free-field seismic effect of seabed under wave excitations. The dynamic response of seabed under earthquake and wave simultaneous excitation is analyzed, and the development of excess pore-pressure is also discussed. The results indicate that the dynamic interaction of wave-seabed model is able to reflect the regular pattern of excess pore-pressure development; the excess pore-pressure development rules in seabed induced by earthquake and wave simultaneous excitation is quite different from those induced only by earthquake excitations. The excess pore-pressure grows due to accumulating effect and obvious oscillation characteristic, which results in large pore-pressure difference along the horizontal direction; besides, the amplitude of excess pore-pressure is magnified in the shallow depth of the seabed, yet rapidly attenuating along the depth. This special development pattern of excess pore-pressure may have significant influence on the ocean engineering structures such as submarine pipeline and immersed tunnel segment. Thus, the effect of wave excitations should be considered in the seismic response analysis and the safety evaluation of ocean engineering structures.
Research on Earthquake and Wave Simultaneously Induced Pore Pressure in Seabed
Xiong, Hao (Autor:in) / Zhao, Kai (Autor:in) / Chen, Guoxing (Autor:in)
Seventh China-Japan-US Trilateral Symposium on Lifeline Earthquake Engineering ; 2016 ; Shanghai, China
10.08.2017
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Wave-induced pore pressure in visco-elastic seabed
| British Library Conference Proceedings | 1995
Wave-Induced Pore Pressure and Effective Stresses in a Saturated Porous Seabed
| British Library Conference Proceedings | 2002
An Analysis of Wave-induced Settlement and Pore Pressure in Seabed Clay
| British Library Conference Proceedings | 1993
Analysis of the Wave-Induced Pore Pressure Observed in the Seabed Beneath a Breakwater
| British Library Conference Proceedings | 2007
Wave-Induced Pore Pressure and Effective Stresses in a Porous Seabed With Variable Permeability
| Online Contents | 1997