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Date of Publication:2006-01-01

Journal:沈阳建筑工程学院学报

Affiliation of Author(s):建设工程学部

Issue:2

Page Number:242-247

ISSN No.:1671-2021

Abstract:The paper has mainly studied the seismic response of the lining of shallow buried water-supplying tunnel in soft soil area under internal water pressure considering sloshing amplitude of the water, radiation damping of the medium, and has discussed the influence of coefficient of damping, direction of excitation, internal water pressure, kind of surrounding rock, nonlinear properties of surrounding rock and tunnel lining and thickness of tunnel lining. The paper sets the equation of motion among inner water-tunnel lining-surrounding rock based on the theory of fluid-structure interaction. With the FEM program of three-dimensional fluid-structure interaction, the seismic response of a water-supplying tunnel through the river bed is analyzed where potential-based liquid element is used for the inner water. According to the result of analysis, the seismic response of tunnel lining is strongly influenced by sloshing amplitude of the water, direction of excitation, high internal water pressure, kind of surrounding rock, nonlinear properties of surrounding rock and tunnel lining and thickness of tunnel lining. With the method of FEM, the paper has discussed the factors that have influence on the seismic response of tunnel lining, and it provides credible technical support for engineering design and construction.

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