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Date of Publication:2008-01-01

Journal:哈尔滨工业大学学报

Issue:8

Page Number:1297-1301

ISSN No.:0367-6234

Abstract:Aiming at the difference of dynamic characteristics between water conveying tunnels in soft soil and common traffic tunnels, seismic responses of the two-dimensional plane strain for a water-conveying tunnel with large diameter through the river bed was analyzed by fluid-solid dynamic interaction analysis method considering the radiation damping of mediums. And the influences of sloshing amplitude of the inner water, coefficient of damping, inner water pressure, kinds and non-uniform distribution of the surrounding rock, nonlinear properties of the surrounding rock and tunnel lining and thickness of the tunnel lining were studied. Results show that, when inner water pressure is zero, the seismic response of lining does not change greatly; while the sloshing amplitude of the water, radiation damping of the medium, inner water pressure, kinds and non-uniform distribution of the surrounding rock, nonlinear properties of the surrounding rock and thickness of the tunnel lining change the seismic response of lining greatly; and the seismic response will be intense when the pressure increases.

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