海底淤泥层对海洋工程地震作用环境的影响问题

Problem of effects of seafloor silt on earthquake action environment of ocean engineering

本文提出了海底淤泥的流变性质对海洋工程的地震作用环境的影响问题，并进行了有关的讨论。文中基于文献［１］ 等的作者提供的关于海底淤泥流变性质的实验研究结果以及文献［２ ，３］ 有关平板上方有限厚粘流层非定常层流问题的理论研究结果，介绍了由海水、海底淤泥和下方持力土层构成的层状叠合体系在地震作用下的反应分析方法。

The problem of effects of the rheological behaviour of seafloor silt on earthquake action environment of ocean engineering is presented and some discussions are done in this paper Based on the experimental results of the rheological characteristics of seafloor silt [1] (the seafloor silt is a Bingham body) and the theoretical results in relation to the unsteady laminar flow of a viscous fluid layer of finite thickness over a plate [2,3] , the response analysis method for a layered system which consists of sea water,seafloor silt and bearing soil under seismic disturbance is introduced,and a numerical example of a system composed of a silt layer in viscous fluid state and bearing soil layers beneath it is given