Abstract

In East China Sea, especially in Zhejiang and Fujian Provinces, classic marine deposit soft soil with characteristics of high compressibility, high sensitivity and low strength is widely distributed. Seismic subsidence occurs under earthquake causing substantial losses. Though a number of effective studies are carried out on the causes, mechanisms and methods on seismic subsidence, there are more other aspects to be studied due to marine soil’s complexity. In this paper, the classic marine soft soil in southern sea area of Taizhou Bay is studied on its seismic parameter based on the tri-axial seismic experiment. The seismic parameters and residual strain formula are obtained, and compared with normal continental deposit soft soil.

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