岩土工程学报2012，Vol.34Issue(10)：1819-1826,8.
黏弹性分数导数型饱和土中球形空腔的动力响应
Dynamic response of a spherical cavity in viscoelastic fractional derivative type saturated soil
摘要
Abstract
Based on the Biot's consolidation theory, the dynamic response of a spherical cavity in viscoelastic fractional derivative type saturated soil is investigated in the frequency domain. The stress and strain constitutive relation of the soil skeleton is described by the fractional derivative type viscoelastic model. By utilizing a stress coefficient depending on the porosity of soil, the values of the inner water pressure in lining and in pore water are determined, respectively. Based on the continuity conditions at the interface between the soil and the lining, the steady-state dynamic response of the spherical cavity in fractional derivative type viscoelastic saturated soil subjected to the inner water pressure is obtained. The influences of physical parameters on the response amplitudes are studied, and it is revealed that their influences on the system response are remarkable by the viscosity of soil, the characteristics of materials and the relative permeabilities of the pore flexible lining and saturated soil.关键词
饱和土/黏弹性分数导数模型/球形空腔/动力响应Key words
saturated soil/viscoelastic fractional derivative model/spherical cavity/dynamic response分类
建筑与水利引用本文复制引用
高华喜,闻敏杰..黏弹性分数导数型饱和土中球形空腔的动力响应[J].岩土工程学报,2012,34(10):1819-1826,8.基金项目
国家自然科学基金项目 （）
浙江省教育厅重点项目 （）
浙江省自然科学基金项目 （）
浙江省水利厅重点科研项目 （）
