ABSTRACT

Sun, P.; Dong, F.; Yao, Y., and Tan, M., 2018. Simulation of one-dimensional earthquake wave field for submarine viscoelastic medium in shallow sea environment. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 188–192. Coconut Creek (Florida), ISSN 0749-0208.

At present, one way wave equation is used to simulate the one-dimensional earthquake wave field in the seabed, and the simulation accuracy is low. A method of one-dimensional earthquake wave field simulation based on finite difference is presented. Firstly, by using the parameters of earthquake wave field simulation, a one-dimensional earthquake wave field model is established. Then, according to the model, the constitutive relation between the relaxation modulus and the creep compliance of various rheological models under different conditions is calculated, and the stress response values are obtained according to the constitutive relation. Finally, based on the distribution law of the obtained earthquake wave field stress value, a one-dimensional earthquake wave field simulation is completed. The experimental results show that the proposed method improves the simulation accuracy and the synthetic effect of earthquake wave field. The stress distribution curve agrees well with the actual stress curve.

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