Marine Strata Stochastic Spectral Response

摘要

The dynamic shear rigidity is an important function for marine soil. Due to the random fluctuation, the proper expression on marine soil dynamic shear rigidity is stochastic spectral theory. The typical marine sediments were studied here. Their dynamic characteristics were included systematically in this paper. Some key dynamic functions were established based on physical-mechanical tests for the marine sediments. Furthermore, the primary spectral functions were established here based on FFT and the stochastic spectral characteristics were offered. The analysis results show that marine strata are possessed of random mechanical nature. These results in this paper are helpful for both marine structures application and academic researches.