岩土工程学报Issue(5)：878-892,15.DOI:10.11779/CJGE201505014
考虑桩底土层波动效应的饱和黏弹性半空间中摩擦桩竖向振动
Vertical vibration of floating piles in saturated viscoelastic half-space considering wave effect of subsoil under pile bottom
摘要
Abstract
Considering the waves effect of soil under pile bottom, an axisymmetrical analytical solution is presented to investigate the vertical vibration of a floating pile embedded in a saturated viscoelastic half-space. By employing the Hankel’s integral transformation and the decomposition theory of differential operator and considering the mixed boundary condition of pile-soil interfaces to solve the Boer’s dynamic governing equations for the soil, the dynamic impedance of the pile head is obtained. Furthermore, the effects of liquid-solid coupled coefficient, length-radius ratio of piles, modulus ratio of pile-soil and viscous damping coefficient of soil on the obtained impedance are discussed through parametric comparative analyses. Some significant conclusions are drawn. This study may provide technical reference and theoretical support for the related engineering practices to some extent.关键词
摩擦桩/竖向振动/饱和黏弹性半空间/Boer多孔介质动力控制方程/Hankel积分变换/微分算子分解理论Key words
floating pile/vertical vibration/saturated viscoelastic half-space/Boer’s dynamic governing equation/Hankel’s integral transformation/decomposition theory of differential operator分类
建筑与水利引用本文复制引用
崔春义,张石平,杨刚,李晓飞..考虑桩底土层波动效应的饱和黏弹性半空间中摩擦桩竖向振动[J].岩土工程学报,2015,(5):878-892,15.基金项目
国家自然科学基金项目（50809009）；辽宁省教育厅一般项目（L2013305）；中央高校基本科研业务费专项资金项目（3132014326，3132014072）；北京市博士后基金项目A类 （）
