NDLI: Seismic passive earth thrust of submerged backfill with two-dimensional steady seepage

Content Provider	Springer Nature Link
Author	Huang, Rui Xia, Tang dai Liu, Zhi jun
Copyright Year	2015
Abstract	To investigate the seismic passive earth thrust with two-dimensional steady seepage, a general pseudo-dynamic solution was established based on the limit equilibrium analysis. This solution was purposefully applied to a waterfront gravity wall, which retains a submerged backfill with a drainage system along the backfill-structure interface. The wall was assumed to move towards the backfill to the passive failure state. And the theoretical derivation considered the pore pressures induced by the seepage, the excess pore pressures generated by the earthquake and the seismic inertial forces. Thereinto, the hydrostatic and hydrodynamic pressures were calculated by the analytical formulas, while the seismic forces were obtained by the pseudo-dynamic method. In the parametric study, the results indicate that the velocity of shear wave has a more prominent impact on the seismic passive earth thrust than that of primary wave. Both the horizontal and vertical seismic actions decrease the passive earth pressure, but the horizontal one affects the amplitude of the earth pressure coefficient more significantly. Moreover, the soil friction and the wall friction distinctly increase the seismic passive earth pressure just like the static situation. The comparison shows that the results are consistent with the previous work, which verifies its validity.
Starting Page	1062
Ending Page	1069
Page Count	8
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	22
Issue Number	3
e-ISSN	22275223
Language	English
Publisher	Central South University
Publisher Date	2015-03-13
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	earth pressure earthquake pseudo-dynamic method seepage Engineering Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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