孔隙率对饱和多孔二维梁动力响应的影响  

Influence of Porosity on Dynamic Respond of Saturated Porous Two-dimensional Girder

作　　者：卢永飞[1,2] 

机构地区：[1]西北民族大学土木工程学院,甘肃兰州730030 [2]甘肃省新型建材与建筑节能重点实验室,甘肃兰州730030

出　　处：《城市道桥与防洪》2016年第2期157-158,171,共3页Urban Roads Bridges & Flood Control

摘　　要：基于饱和多孔介质理论模型,考虑了固体颗粒和流体的可压缩性,以及孔隙流体的粘滞性,分析了在均布简谐荷载作用下孔隙率对饱和多孔二维梁动力响应特性的影响,重点分析了孔隙率对饱和多孔二维梁的固体骨架应力、流体压力,以及固相位移和流体位移等物理量的影响。Based on the theoretical model of saturated porous medium, the article considers the compressibility of solid particle and fluid, and the viscosity of pore fluid, analyzes the influence of porosity on the dynamic respond of saturated porous two-dimensional girder, and focuses analysis on the influence of porosity on the solid framework stress and fluid pressure of saturated porous two-dimensional girder, and the physical quantities of solid phase displacement and fluid displacement.

关 键 词：饱和多孔介质 二维梁 孔隙率 

分 类 号：TU43[建筑科学—岩土工程]