In:
International Journal of Structural Stability and Dynamics, World Scientific Pub Co Pte Ltd
Abstract:
In this paper, to investigate the dynamic responses of underground circular shells subjected to subsurface denotations and provide a feasible engineering design method, a simplified mathematical modelling was proposed. The dynamic medium–structure interaction (MSI) was introduced into the equations of motions through an interfacial damping between the structure element and the surrounding geomaterial, in which the effects of the shear and the rotary inertia were neglected. By means of modal superposition, the analytical solutions of the dynamic responses were deduced. The effects of geometric parameters and acoustic impedances on the dynamic responses were discussed. It is suggested that protective structures are better to be constructed in geomaterial with small impedance to attenuate the intense shock wave effects.
Type of Medium:
Online Resource
ISSN:
0219-4554
,
1793-6764
DOI:
10.1142/S0219455424501578
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2023
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